WO2017063836A1

WO2017063836A1 - Imaging sensor for a component handling device

Info

Publication number: WO2017063836A1
Application number: PCT/EP2016/072480
Authority: WO
Inventors: Uladimir Prakapenka; Siarhei LAKHADANOU; Stephan SPICHTINGER; Rainer Miehlich
Original assignee: Muehlbauer GmbH & Co. KG
Priority date: 2015-10-16
Filing date: 2016-09-22
Publication date: 2017-04-20
Also published as: DE102015013500A1; TW201715197A

Abstract

The invention relates to an imaging sensor which is suitable and intended for detecting the position and/or qualities of a component, in particular in a component handling device. Said imaging sensor has at least two detection spectra which deviate from each other. The imaging sensor is in particular suited and intended for detecting quality defects and/or position defects of a component located in the receiving point of a receiving apparatus. Said imaging sensor is suitable for and intended to interact with radiation sources which are coordinated with the imaging sensor in respect of radiation spectrum and radiation incident angle and/or radiation reflection angle relative to the imaging sensor. The imaging sensor is suitable for and designed to provide a separate image acquisition for each of the detection spectra thereof to a downstream image evaluation.

Description

Imaging sensor for a component handling method

Description background

Here, an imaging sensor will be described. This imaging sensor is explained in cooperation with a component handling device and a receiving device.

A component is here, for example, an (electronic) semiconductor device, also referred to as "chip" or "the". Such a component usually has a prismatic shape, a substantially polygonal, for example, quadrangular (rectangular or square) cross-section with a plurality of lateral surfaces and an end face and a top surface. The lateral surfaces and the two (lower and upper) top surfaces of the component are hereinafter referred to generally as side surfaces. The component can also have one of four different number of lateral surfaces. A component may also be an optical component (prism, mirror, lens, etc.). Overall, a component can have any geometric shape.

From the practice of the Applicant so-called picking and depositing devices are known in which components are picked up by means of a nipple or retainer from a component table and then stored on a support or in a transport container or the like. Before the component is deposited, usually an inspection of the component takes place. For this purpose, images of one or more side surfaces of the component are recorded with one or more cameras and evaluated by means of automated image processing.

State of the art

Such retainer hold a component during transport and during the capture of an image of one, for example, the lower, top surface of the component. Thus, DE 10 2008 018 586 A1 shows an optical detection device for the detection of a surface of a component that is transported from a first to a second workstation, a directed to at least a first surface of the component camera, a light source, the short-wave light beams for first surface sends. A second light source transmits long-wavelength light rays to at least a second surface of the component. The camera receives the first and second light rays reflected on the surfaces. The second surface (s) are oriented differently from the first surface (s) as in For example, cuboid components with a bottom and a total of four lateral surfaces is the case.

EP 1 470 747 B1 relates to a chip removal device, a chip removal system, a placement system and a method for removing and processing chips. The chips are removed from a wafer and transported to a transfer position and turned at the same time. This chip removal device for removing chips from structured semiconductor wafers is equipped with a rotatable removal tool for removing the chips from the wafer and turning the removed chips by 180 ° about their longitudinal or transverse axis, and a rotatable turning tool for re-turning the removed chips 180 ° about its longitudinal or transverse axis, which cooperates with the removal tool. The removal tool has a first transfer position and the turning tool has a second transfer position to which the chips can be transferred to a placement head for further processing.

EP 0 906 011 A2 relates to a device for removing and equipping electrical components on a substrate. The device comprises a rotatable transfer device, which removes the electrical components from a supply module at a receiving position and transfers them to a first transfer position to a suction belt for further processing. By means of a rotatable mounting head, the components are absorbed by the suction belt and transported to a second transfer position.

WO 02/054480 A1 relates to a device for optically inspecting various surfaces of a chip to be mounted. The device comprises a first, upper transport disc, which is adapted to remove the chips from a feed unit and to transport to a first transfer position. The chips are held in suction openings which are formed on the lateral surface of the upper transport drum, and moved by rotating the upper transport disc. The device furthermore has a second, lower transport disk, designed in accordance with the upper transport disk, which receives the removed chips at the first transfer position and transports them to a second transfer position. The device allows for an inspection of the chips by cameras are arranged laterally next to the transport discs, which inspect the chips on the top and bottom. Furthermore, the chips are transferred to a sorting device for further processing in a non-random manner relative to the original orientation. US 4,619,043 discloses an apparatus and method for removing and mounting electronic components, in particular chips, on a printed circuit board. The apparatus comprises a conveying means for receiving the chips in receiving units and for transporting the picked-up chips to a first transfer position. The conveyor has a conveyor chain and a rotatable sprocket, which are engaged together. The apparatus further comprises a rotatable attachment tool having placement heads for receiving the chips at the first transfer position. The fastening tool is further adapted to convey by means of a rotary movement, the recorded chips to a second transfer position, wherein they are turned.

JP 2-193813 relates to a device for picking up and turning over electronic components which are inspected by testers. The device comprises a supply unit from which chip-type electronic components are removed by a first rotating body and arranged on the circumference thereof. By a rotational movement of the rotating body, the electronic components are transported to a first transfer position, whereby they are turned about their longitudinal or transverse axis. The device further comprises a second rotating body, which receives the removed electronic components at the first transfer position and transports them to a second transfer position. In this case, there is a further turning of the electronic components about their longitudinal or transverse axis. The device thus allows different sides of the components to be inspected.

US 6,079,284 relates to a device for extensive visual inspection of tablets. The device comprises a first inspection drum, which removes the tablets from a supply device by means of suction holes formed on their lateral surface and transports them by rotation to a second inspection drum. The second drum is formed according to the first drum with Sauglochbohrungen which receive the tablets at the transfer position. The device further comprises inspection units which allow comprehensive inspection of the tablets.

Further technological background can be found in the documents JP 2001-74664 (A), JP 1-193630 (A), US Pat. No. 5,750,979, WO 85/04385 Al, DE 199 13 134 Al, JP 8-227904 A. Problem to be solved

An imaging sensor for a component handling device is intended to accurately handle components and inspect them at high throughput

enable.

Here presented solution

This object is achieved by an imaging sensor which is suitable and intended for detecting the position and / or properties of a component, in particular in a component handling device. This imaging sensor is equipped with at least two different detection spectra. It is particularly suitable and intended for detecting feature errors and / or positional errors of a component located in the receiving point of a receiving device. This imaging sensor is suitable and intended to cooperate with radiation sources that are tuned to it with regard to radiation spectrum and radiation angle of incidence and / or radiation reflection angle relative to the imaging sensor. The imaging sensor is suitable and configured to provide a separate slide feeder for each of its acquisition spectra for a downstream image evaluation.

In a variant, this imaging sensor is associated with a component handling device for removing components from a structured component supply and for depositing the removed components at a receiving device. A first turning device with a plurality of receivers is configured to receive a component from the structured component supply at a dispensing point, to turn the received component around a first predetermined angle about its longitudinal or transverse axis and to convey it to a transfer point. A second turning device with a plurality of receivers is adapted to receive the component at the transfer point of a pickup of the first turning device, to turn the received component by a second predetermined angle about its longitudinal or transverse axis and to promote to a storage location. The position and property sensors associated with the first and second inverters are configured to detect position data of the first and second inverters, position data of components located on the pickups, and / or properties of components located on the pickups, and to provide them for control , The controller is adapted to rotate by means of a first rotary drive, the first turning device controlled about a first axis, by means of a first linear drive, the first turning device along the first axis to control controlled by means of a second rotary drive, the second turning means to a non-collinear second axis to the first axis controlled to rotate, and controlled by means of a second linear drive, the second turning device along the second axis controlled.

Thus, the arrangement presented here forms an integrated handling / inspection device. The imaging sensors inspect all or almost all of the cover and / or side surface (s) of a component, thereby also providing relevant data for positioning the manipulators (transducers) and the receiving points. This device thus forms a core of a closed machine system with the necessary process engineering periphery, for example, to provide the components (for example, wafer table) and component storage (for example, pocket or carrier tape). The component handling device presented here takes over components from a component supply (wafer wafer), for example arranged horizontally in the upper region of the component handling device, with a stationary ejection unit. Relative to this stationary ejection unit, the component supply moves in the plane. The ejection unit causes by a needle or non-contact (eg by a laser beam) that the components are released individually from the component supply and absorbed by a pickup. The ejected components are supplied in total up to six or more inspection processes and finally promoted to receiving points (pockets) of the bag or carrier tape. The terms receiving station and (filing) bag are used here synonymous. Bad parts can be removed. The optical examination of the component integrated in the transfer process is subdivided into several examination procedures. It uses one or more imaging sensors for optically detecting the cover and / or lateral surface (s) of a component as well as the positions of the transducers at the transfer / receiving points. These imaging sensors are set up to capture at least one image of one of the cover and / or lateral surfaces of a component in several examination processes. The promotion / transport of the components happens while keepers of turning devices each hold a component. A held component passes during the transport individual investigation operations. The captured (image) data of the imaging sensors also serve to coordinate the position control of the manipulators (transducers) and the receiving stations. The component conveyor is adapted to convey a component substantially continuously or clocked along its path. The complete assembly presented here combines two functional aspects: handling and inspection. These two functions are interwoven for quick and precise qualitative assessment of multiple (up to six or more) sides of the components as they are quickly removed from the component supply and classified by the inspection as good parts precisely placed at the receiving point (s).

The component handling device has two preferably controlled operated, preferably substantially orthogonal (90 ° plus minus up to 15 °) to each other arranged, approximately star or wheel-shaped turning devices. The turning devices could also have a rectangular shape. Each of these turning devices carries a plurality of radially movable to its axis of rotation transducers to each of the components on a transducer fixed within a pivot angle between component transfer and transfer of one or more process stations for inspection, Schlechteteilausschleusung and possibly other stations supply.

In the case of the component handling device presented here, the star-shaped or wheel-shaped turning devices carry the components on radially outwardly pointing transducers which are arranged on the (imaginary) circumference of the two turning devices. This is to be seen in contrast to such component handling devices, in which the sensors of one or both turning devices are oriented parallel to their axis of rotation.

While a plurality of examination procedures are mentioned above, it is not intended to specify a time sequence or an order (first an image acquisition in a first and then an image acquisition in a further examination process). Rather, cases are conceivable in which the reverse order is more favorable. Since, depending on the number of transducers on the individual turning devices, several components can be accommodated on each of the turning devices at the same time, the examination processes also take place at the same time, albeit on different components.

The (upper) / lower (cover) and / or (lateral) lateral surface (s) of a component which are detected by the imaging sensors during the individual examination procedures may be different cover and / or lateral surfaces of the component.

One aspect of the optical examination envisages that the component feed with a component essentially shuts off the component path without or with almost no standstill. solviert. In this case, one or more cover and / or lateral surfaces of a component with the imaging sensors are detected during the movement or during the minimum downtime. These images are then evaluated using image processing methods. A variant of this optical detection / examination provides that one or more color cameras or black-and-white cameras are provided as imaging sensors.

The imaging sensors may have one or more mirrors, optical prisms, lenses or the like.

The imaging sensors can be assigned radiation or light sources. In this case, each source can be set up to emit light / radiation having a different spectral or wavelength range for illuminating at least a portion of the component. The wavelength ranges may be at least partially different, overlapping, or coincident. For example, the light of the first light source may be red, and the light of the second light source may be blue. But it can also be the reverse assignment or another wavelength pairing (for example, infrared and visible light) can be selected.

The light sources can be switched on by a control arrangement at the moment in each case briefly when the transducer is located with the component in the respective detection area, so that the cover and / or lateral surfaces of the component are exposed with a short flash of light for detection by the respective imaging sensor can. Alternatively, a permanent lighting can be used.

In a variant, the component handling device is assigned a dispensing device which is set up to deliver a component from the structured component stock to a receptacle of the first reversing device that is correspondingly positioned by the controller. This can be a component ejector (the ejector) which pushes the component through the wafer carrier film by means of a needle or a laser pulse generator which purposefully melts the adhesive of the component on the carrier film. The output device is associated with a position and / or characteristic sensor, which is adapted to detect the position of the dispensing device relative to the component to be dispensed and / or position data of the component to be dispensed, and / or properties of the component to be dispensed and for the controller for operating the To make dispensing device available. The component handling device is equipped in a variant with a receiving device associated with the receiving device for a component conveyed there. In this case, the receiving device is assigned position and / or characteristic sensors which are set up to detect position data of the component conveyed to the deposit location, position data and / or properties of receiving points in the receiving device and / or component therein and are available for a controller put. The controller is adapted to rotate by means of a third rotary drive, the receiving device at least partially controlled by a third axis containing the deposit, and / or controlled by at least a third linear drive, the receiving device at least partially along one of the first, second and / or third axes method, and / or by means of a fourth and / or fifth linear drive to run a guided by the receiving means carrier along one of the first and / or second axes controlled. This carrier serves to accommodate the components in isolated form.

In the component handling device, the transducers of the first and / or the second turning device are adapted to be radially extended and retracted radially to the rotational axis or the center of rotation of the respective turning device, and / or controlled to receive and deliver a component to be conveyed with Under pressure and / or pressure to be applied, and / or to be immovable to their respective radial axis of motion, or to be controlled to rotate their respective radial axis of movement by a rotation angle.

In a component handling device of this kind, the transducers of the first and / or the second turning device for radially extending / retracting the dispensing point, the transfer point between the first and second turning devices associated with this linear actuators are provided in a variant. These linear actuators engage in the correspondingly positioned transducers in each case from outside the respective turning devices and drive the respective transducers radially out and in. In another variant, these linear drives only drive the respective pick-up, while a return spring retracts the respective pick-up. In a further variant, each of the transducers is assigned a bidirectional or unidirectional radial drive.

In a variant of the component handling device, valves for each of the individual transducers provide individually and in a positionally correct manner a supply of negative pressure and overpressure in order to freely or position-controlled the functions: (i) suction (ii) holding the component, (iii) depositing the component with or without a controlled blow-off pulse, and / or to realize free blowing off of the component.

In a variant of the component handling device, position and property sensors are respectively associated with the first turning device between the dispensing point and the transfer point, and / or the second turning device between the transfer point and the depositing point. These sensors are set up to detect position data and / or properties of the conveyed component and / or position data for position control of the manipulators (pickups) and the receiving points and make them available for the control.

In a variant of the component handling device, at least some of the position and characteristic sensors are set up to inspect at least one cover surface and / or one or more lateral surfaces of the conveyed component in order to record its position data and / or properties and make it available for the control.

In a variant of the component handling device, in the center of the first turning device and / or in the center of the second turning device, respectively an imaging property and / or position sensor for determining properties and / or the position of a component to be received or for determining the location of receiving points provided in the receiving device and / or component therein. Based on the property data and / or the position data of the sensor / these sensors can then be corrected by the controller for property errors and / or position errors of the component to be received or the receiving point. In this case, the image-forming position sensor (s) is / are configured to execute an image intake in each case during the turning movement of the first or second turning device between adjacent pick-ups and for the control to cause corresponding correction movements of the ejection unit, the component supply or wafer, the turning devices and / or the receiving device to provide. In another variant, the ejection unit is stationary.

In addition or as an alternative to these imaging property and / or position sensors, externally provided imaging property and / or position sensors can be provided relative to the first and second turning devices for determining properties and / or the position of a component to be received or determining the position of receiving locations in the receiving device and / or component therein be provided. Based on the property data and / or the position data of this sensor / these sensors can then be corrected by the controller in case of property errors and / or position errors of the component to be received or the receiving point. Regardless of the above-described inspection system and functionally as part of the handling system allocate, in each case in the center of the two turning devices an upwardly directed component supply camera (with 90 ° mirror system and lighting) or a preferred but not necessarily identical downward Assembly be arranged as a storage camera. They serve to detect the position of the components or the receiving points with the aim of correcting the position in case of positional errors of the components or the receiving points. The image is drawn in each case during the pivoting movement of the two turning devices through a window area between the pickups with subsequent wafer or receiver correction movement. Alternatives with externally stored wafer or deposition cameras are also possible here.

In a variant of the component handling device, the transfer point and / or the deposit location is upstream or downstream of a discharge point which is set up, controlled by the controller, to discharge a component recognized by the controller by means of at least one of the position and property sensors as a bad part, and it not store as a good part in the receiving device.

In a variant of the component handling device, the first and / or the second turning device are each assigned an integer number of n pickups. In this case, n> = 2. The number of transducers of the first turning device and the number of transducers of the second turning device can be the same or different.

In a variant of the component handling device, the first, second and / or third axes in each case enclose an angle of 90 ° plus / minus a maximum of 10 ° or 15 °.

In a variant of the component handling device, the position / property sensors are imaging sensors with matching or divergent detection spectra, or contact-type or contact-free, distance-measuring position sensors, or contact sensors or contactless sensing sensors. The attitude and property sensors may be imaging sensors with rectilinear or kinked optical axes.

The camera systems of the position and property sensors including their mirror and lighting units can be combined by their spatial arrangement such that the component inspection of the respective facing component surface and two of its lateral surfaces parallelized at a single process position can be realized. Overall, two process positions are sufficient for the complete inspection of all six side surfaces of a cuboid component, for example. For this purpose, the component detects three of the six side surfaces at each of the two process positions. As an inspection position of each turning device, in a variant, the respective third process position can be determined approximately horizontally at the level of the rotation or pivot axis.

Additional position measuring tasks can be assigned to two further camera systems (front / rear camera).

In a variant of the component handling device, the first and / or second turning devices are configured at least approximately star or wheel-shaped. The turning devices can be precision-mounted and their positioning along the respective axes or about the respective axes can take place by means of axially arranged linear or rotary acting drive, paired with a high-resolution (for example rotary or linear) encoder. The respective transducers can be arranged distributed on the outer circumference and have radially outwardly facing Saugkontaktstellen for the components to be delivered.

An advantage of the axially offset by about 90 ° arrangement of the turning devices to each other is that the components in their position during the conveying process in transfer from one turning device to the next a 90 ° rotation about the pickup axis, relative to the respective movement plane of the transducer ( or turning device axis) run, without that the transducer itself must be stored rotatably movable. This change in orientation of the components in turn allows a significant simplified inspection of the four component cut surfaces (= component side surfaces). For this purpose, a by one, the component-sectional area facing, orthogonal to the transducer-movement plane (ie in the axial direction of the turning device) arranged camera system with preferably very small distance from the component-sectional surfaces (= lateral surfaces of the component) itself. The detection of the incorrect positioning of transducer and component to each other or to the transfer and inspection positions is carried out using the camera systems as a transducer or component position-sensing measuring system. In the case of very high accuracy requirements, in each case three distance-measuring sensors for the bonding tool position detection per turning device can additionally be provided.

The optical axes of the cameras "penetrate" the inspected component surface and form a reference frame for the transducer position, from which deviations of the transducer trajectory can be determined by the distance-measuring sensors arranged in a plane parallel to the ideal transducer movement plane of the rotating turning device From this, the occurring position errors in the transfer positions can be determined and compensated by the controller.

Depending on the functional principle of the additional position sensors, the reference measurements for the transducer position during the running process or even during cyclically repeating reference movements (for example, by means of touchingly touching measuring sensors required) can be realized. For this, cyclic reference runs (for contact sensors with short-term process interruption) are required both at the beginning of the process for detecting spatial positional errors and during the process of incorporating thermally induced displacements, although the cycle intervals may well be relatively long due to the relatively slow thermal behavior.

In a variant, a rotational correction movement of the rotor drive and orthogonal a linear correction movement in the axial direction is carried out to compensate for position errors of the turning devices of the transducers, especially in the component transfer positions and the components fixed thereon (in transfer and inspection positions). For this purpose, in a variant, the rotor drive assembly may be arranged on a carriage and be moved by means of a position-controlled drive, for example an eccentric drive to limited path segments.

In a variant of the component handling device, the rigid coupling of a plurality of transducers to a turning device requires transmission of the correction values from a component handover position to the next positions in the sequence. These corrections can begin at a fixed transfer position and end at the last component transfer to the receiving point. there the total position errors along the up to three axes and the distortion around the up to three axes are compensated by the receiving device.

In a variant of the component handling device, the transducers are not rotatably mounted on their respective turning device. Thus, an orientation error compensation of components during the delivery itself can not be done. Therefore, in a variant in the downstream peripheral region, in particular in the receiving device in addition to the axis position correction and a rotational correction possibility provided.

In another variant of the component handling device, the rotational correction takes place with rotatably mounted transducers. Alternatively, it can also be provided to support the transducers rotatably on their respective turning device. This can be done to compensate for orientation errors of components during conveyance itself. The orientation error is then corrected by the rotatably mounted pick-up of the upper and / or lower turning device, preferably by the pick-up of the lower turning device.

The variants presented here are more cost-effective compared to the prior art and offer a higher component throughput, more time for inspections and have less moving masses.

More specifically, a solution is presented for a receiving device, in particular for a component handling device of the type presented above, which is adapted to rotate relative to the deposition site by means of a rotary drive at least partially controlled by a third axis containing the storage location, and / or by means of at least one linear drive Controlled to move at least partially along one of the first, second and / or third axes, and / or by means of a rotary drive to control a guided by the receiving means carrier along one of the first and / or second axes controlled.

The solution presented here allows the position and position of the turning devices to be compensated simultaneously by the position and / or rotation of the receiving device. Therefore, the component throughput of the engine can be increased over the prior art. In order to avoid play in the tape drive of the storage tape, the drives must be adjusted relative to each other in the prior art. The solution presented here avoids this because the transport always takes place in one direction only. The game in the drive can be neglected. In another variant can also be transported in the opposite direction. This is particularly useful in applications where the pockets of the carrier tape are gradually closed with an adhesive masking tape. If one were to transport the carrier tape back again, this would possibly result in problems if the masking tape had to be removed again.

The correction of the position of the component takes place at the receiving device. So there is more time available. A return transport of the tape in which the components are stored, is no longer necessary. Thus, the receiving device can be constructed simpler. A second drive wheel for the return transport of the tape as in the prior art is no longer necessary. Rather, in the required situations, the entire receiving device is moved counter to the transport direction of the storage belt. The advantage is that a higher positioning accuracy of the tape over prior art variants is achieved, in which the positioning is accomplished exclusively on the transport of the conveyor belt. The subsequent attachment of a (self-adhesive) masking tape (cover tape) on the conveyor belt can be made easier.

In a variant, the receiving device is arranged above a stationary base plate, the motors of the three drives are arranged below the base plate. The position of the receiving device can be adjusted in rotation in X, Y and around the Z-axis. Each direction of movement of the receiving device has its own drive. The position of the individual drives is not specified. The rotation axis for the Z-correction is close to the component storage position or falls in the center.

In a variant of the receiving device, this is equipped with two receiving points, which are aligned at least approximately in alignment with the storage location by controlled actuation of the rotary drive of the / linear drives. The two receiving points are to be positioned according to a grid spacing of adjacent component recordings of the carrier corresponding to one another.

In a variant of the receiving device, an imaging property and / or position sensor for determining properties and / or the position of a component to be received in relation to its properties and / or its location is provided to at least one of the receiving locations in the receiving device. This imaging property and / or position sensor is located in or at the center the lower turning device. With the image data from this sensor, the generation of correction instructions in the event of property and / or positional errors of the component to be received or of the receiving location can be effected by the controller for initiating corresponding correction movements.

In another variant, two further imaging property and / or position sensors are provided at the receiving device. The one sensor is directed from the top of the second window to investigate quality defects. The other sensor is arranged laterally at the first window in order to be able to better detect a tilting of the component with respect to the sensor explained above.

In a variant of the receiving device, the fifth rotary drive is set up, controlled by control signals from the control, controlled by means of a mechanical traction guided by the receiving carrier carrier along one of the first and / or second axes controlled by about 80 - 120%, preferably about 100% plus minus a maximum of 3%, of the grid dimension of adjacent component images of the carrier. In this case, the rotary drive can be set up to be controlled by control signals from the controller, depending on signals from the imaging property and / or position sensor controls at least one of the receiving points with the component receiving the carrier located there around the third third axis containing the deposit to rotate up to plus minus 6 °, preferably up to plus minus 3 °. Furthermore, in addition or as an alternative, the at least one linear drive can be set up, controlled by control signals from the control, the receiving device controlled by approximately plus or minus 20%, preferably by up to plus minus 3% of the pitch of adjacent component recordings of the carrier along a the first, second and / or third axes controlled to proceed.

In a variant of the receiving device, the fifth rotary drive is set up to convey the carrier guided by the receiving device forward along one of the first and / or second axes in accordance with a grid spacing of adjacent component receivers of the carrier.

In a variant of the receiving device, a suction and / or Ausbiaseinrich- device is provided to remove from at least one of the receiving points in the receiving device and / or guided in the receiving device a detected as defective and / or incorrectly recognized component. In operation of a variant of the receiving device engages a driven by the fifth rotary drive pinwheel in transport holes of the storage belt for its transport in the conveying direction. The spiked wheel preferably rotates only in a forward direction. The storage belt has storage pockets for the components at regular intervals. For each storage bag, the spiked wheel turns by a fixed angle (eg 30 °, 60 °, 90 °, 180 ° 360 °). From the image recording by the camera in the center of the second turning device, the position of the storage bag is known, in which the component has been stored. By the camera on the outer circumference of the second turning device is also known whether the next component to be deposited is kept rotated on the transducer. From this position information is calculated in the controller by which distance and / or angle amounts the receiving device must be repositioned. In addition, in the positioning of the receiving device is also taken into account that the turning device will move in the x and y directions accordingly to correctly take over the component at the transfer position from the upper to the lower turning device. The receiving device is then, if necessary, moved linearly along the (X, Y) axes and possibly rotated to ensure the fine adjustment of the storage of the component.

If a component has been deposited in the storage position, the camera has also detected in the center of the second turning device arranged above, whether the component is faulty, i. whether it was damaged by the dropping or already had a defect before. If a component was previously detected as defective, it will not be saved.

The storage position in the receiving device can also be a first suction position at the same time. For this purpose, an aspirator with negative pressure at the storage position is arranged at the receiving device. In the conveying direction of the carrier tape there is a second alternative suction position. That is, at the receiving device, two windows are provided: a first window with a storage position and a second window with a suction position. The distance between the two windows corresponds to the pitch of the carrier tape and is adjustable to the pitch. If the component has not been deposited correctly so that it lies obliquely therein, or still protrudes partially, this is detected by a camera in the center of the second turning device. The carrier tape can not be transported because of the incorrectly placed component. Therefore, the component is sucked off at the storage position and replaced by the next component to be deposited. If the component is damaged, it can also be removed at this position and replaced with the next component to be deposited. At the position of the second window can - if necessary with a another camera - to be inspected for errors. In a recognized as a defective component, the receiving device is moved back in total and sucked to the recognized as defective component at the storage position.

Alternatively, the second suction position may be used to remove the defective component.

With the arrangement presented here, it is possible to inspect a component for detecting errors. To deposit the component with the first and second turning device, and remove a recognized as defective component at the storage position. This takes place at a common position.

The receiving device moves in three directions: in the X and Y directions, and around its (Z) vertical axis in / near the center of the storage position. This can also be seen in contrast to conventional arrangements in which the carrier tape is conveyed in the transport direction and the receiving device perpendicular to

Tape transport direction for positioning to component tray is moved. The receiving device may also be in the form of a tray (a tray, e.g., a Jedec tray), or an antenna track.

In an alternative variant, the receiving device is associated with a suction and / or blow-out device in order to remove from at least one of the receiving points in the receiving device and / or the carrier guided in the receiving device a component recognized as defective and / or incorrectly placed.

In a variant, the receiving device can receive components from a turning device whose rotation axis is oriented substantially parallel to the conveying direction of the receiving device, or the receiving device can receive components from a turning device whose rotation axis is oriented substantially transversely to the conveying direction of the receiving device in a further variant.

In a variant, an imaging property and / or position sensor for determining properties and / or the position of a component to be received or for determining the position of receiving locations in the receiving device and / or component therein is provided in the center of the turning device. This imaging property and / or position sensor is configured to pass between adjacent receivers located on the circumference of the turning device Image input at least one of the receiving stations in the receiving device to perform.

In an alternative variant, a deflection mirror or prism is arranged in the center of the turning device, which is assigned to the arranged outside the turning device imaging property and / or position sensor for determining properties and / or the position of a component to be received or to determine the position from receiving stations in the receiving device and / or component therein. The deflecting mirror or the prism together with the imaging property and / or position sensor arranged outside the turning device are set up to execute image feeds of at least one of the receiving points in the receiving device between adjacent receivers located on the circumference of the turning device.

The receiving device is to be moved relative to a storage location by means of a linear drive at least partially controlled along a first axis in both directions. By means of a rotary drive, a carrier guided by the receiving device is moved along one of the first and / or second axes in a conveying direction of the carrier. The guided by the receiving device carrier is equipped with two receiving points, which are to be aligned at least approximately aligned to a storage location for components by controlled actuation of the drives. An imaging property and / or position sensor provides properties and / or position of a component to be examined with respect to its properties and / or its position in at least one of the receiving locations in the receiving device. Based on image data from the property and / or position sensor, correction instructions for property and / or positional errors of the component are carried out by a controller for initiating corresponding correction movements of the receiving device and / or of the carrier guided in it. The receiving device is associated with a suction and / or blow-out device in order to remove from at least one of the receiving points in the receiving device and / or the carrier guided in the receiving device a component recognized as defective and / or incorrectly placed.

A method for removing defective components from a receiving device, in particular the construction / function method described above, has the following steps:

Detecting an improperly placed component in a pocket of the carrier for a component at the first receiving location, Moving the receiving device by means of a linear drive along the conveying direction, so that the improperly placed component is located at the second receiving point, without promoting the guided in the receiving device carrier,

Aspirating the improperly deposited component at the second receiving location from the pocket for a component;

Moving back the receiving device by means of the linear drive counter to the conveying direction, so that the one empty pocket for a component is located at the first receiving point, without conveying the carrier guided in the receiving device,

Placing a component in the pocket of the wearer at the first point of receipt.

Due to increased quality requirements with simultaneously decreasing dimensions of electronic components, which are also processed in ever decreasing process times, the conventional sensor arrangements were recognized as insufficient.

As a variant, therefore, an imaging sensor is proposed, which is suitable and intended for detecting the positional properties of a component, in particular in a component handling device of the type disclosed above. This imaging sensor is equipped with at least two different detection spectra. It is particularly suitable and intended for detecting feature errors and / or positional errors of a component located in the receiving point of a receiving device. This imaging sensor is suitable and intended to cooperate with radiation sources which are matched to the same with regard to the radiation spectrum and the radiation angle of incidence and / or the radiation reflection angle relative to the imaging sensor. The imaging sensor is suitable and adapted to provide a separate image input for each of its acquisition spectra of a subordinate image evaluation.

In the case of this imaging sensor, for example, the at least two mutually differing detection spectra are configured in the visible and invisible regions. They may also be configured as a red color range - 630nm plus minus 30nm - and / or green color range - 530nm plus minus 60nm - and / or blue color range - 460nm plus minus 50nm - of a color sensor.

In a variant of the imaging sensor optically active elements are provided, which are adapted to the sensor with a component in at least one of To couple receiving stations in the receiving device and / or guided in the receiving device carrier optically.

In a variant of the imaging sensor, the optically active elements comprise deflection mirrors, prisms, color filters and / or lenses.

Individual ones of the optically active elements and / or the radiation sources may be arranged to be activated, aligned and / or adjusted / focused independently of others.

The integrated handling / inspection device disclosed here employs imaging sensors which on the one hand inspect all or almost all cover and / or side surface (s) of a component and on the other hand also relevant data for positioning the manipulators (transducers) on the first and / or the second turning device and the receiving stations.

In one variant, the imaging sensor of the first (upper) turning device is a color camera in the center of the turning device. Alternatively, the camera can also be a black-and-white camera, which interacts in a further variant laterally and with a 45 ° deflection mirror in the center of the turning device. This camera detects during the rotation of the upper turning device through the gap between two pickups the isolated in the next step of the component ejector from the component supply component. From the obtained image collection both an inspection of the component and its exact position determination in the component stock is possible. The image intake takes place during the rotation of the upper turning device, in the period referred to as Blickfenster.

The integrated handling / inspection device disclosed herein also employs imaging sensors in the form of side cameras on the upper turning device. These are arranged approximately at 90 ° radially outside the upper turning device such that the component on its flight circle from a central camera is detected frontally and are detected by the on both sides of the central camera each opposing lateral surface. These cameras are not necessarily color cameras. Several image feeds can be made because the upper turning device stands still for a short time (10 ms to 60 ms, for example 40 ms) because of the subsequent component in the 180 ° position. This short downtime is sufficient for the inspection. For this purpose, black and white cameras can be used. With the side inspection by the two lateral cameras, the front sides of the component are examined for damage. With the rear side inspection through the middle camera, the back of the component is examined for damage. For the backside inspection several image injections can be made to highlight different defects. The cameras used here can also be color cameras. However, this is not absolutely necessary since, as already mentioned above, sufficient time is available due to the stoppage period.

The integrated handling / inspection device disclosed herein also employs imaging sensors in the form of side cameras on the lower turning device. These are arranged approximately at 90 ° radially outside the lower turning device in such a way that the component is detected frontally on its circle by a central camera and the cameras located on both sides of the central camera each detect overlapping lateral surfaces. These cameras are not necessarily color cameras. Rather, you can too

Black and white cameras are used. At this position, the component is examined for errors as well as the image data are evaluated for position data. With the side inspection by the two lateral cameras, the component is examined for damage on its cut surfaces. With the rear side inspection through the middle camera, the back of the component is examined for damage. For the backside inspection several image injections can be made to highlight different defects. For the subsequent storage of the component in the receiving device, the position data (x, y, rotation) of the component can be determined with the side inspection. In another variant, the rear side inspection is used for this purpose. This information is used by the controller to make any corrections. The cameras used here can also be color cameras. However, this is not absolutely necessary as there is sufficient time available during the downtime period.

The integrated handling / inspection device disclosed herein further employs imaging sensors in the form of a camera in the center of the lower turning device. This camera can be a color camera with three individual channels R, G, B. It is irrelevant whether a 3-chip color camera or a 1-chip color camera is used. 3-chip cameras have a separate image sensor for each color R, G, B, a 1-chip camera uses alternating activated filters in front of the image sensor. A black and white camera that can be used here has a channel with, for example, 255 gray levels; for a color camera, each of the three channels has 255, for example Intensity levels of a color. It is essential that the three color channels of the camera are addressed / read separately from each other, or at least a splitting of the three color channels in the controller can be done. Different exposure times are possible for each channel. For example, the following exposure times can be used here: 5 ms (green), 12 ms (red), 15 ms (blue). Depending on the respectively activated color channels, different illumination colors are also used in the integrated handling / inspection device disclosed here. White light is indeed a mixture of all colors, so that with this illumination color all channels could be addressed simultaneously. However, this definitely does not take place if the achievable image quality does not meet the requirements.

In a variant, the imaging sensor is assigned a semitransparent mirror, which is arranged at an angle of approximately 45 ° to the optical axis of the camera chip and serves to optically couple colored light of two, several or any number of different acquisition spectra from corresponding light sources and to an inspection area. This directed to the inspection area, so the component top surface or side surface and possibly their environment in the bag, light is reflected there and is detected by at least one camera chip of the imaging sensor.

Furthermore, in one variant, the imaging sensor is assigned a light source as a ring straightening source around the inspection point. This refractive index source provides stray light at an angle of about 5 ° - 45 ° in a third color range. This directed to the inspection area light is reflected there and is detected by at least one camera chip of the imaging sensor. The light or the differently colored light sources can be arranged as desired or also have the same radiation angle.

The integrated handling / inspection device disclosed here uses in the center of the lower turning device a deflection mirror for coupling coaxial illumination of the receiving device. More specifically, the guided by the receiving device carrier is detected in the form of a storage belt with storage pockets for the components with the camera. A single image pickup inspects for defects, such as tilting the component so that it is not properly positioned in its storage bag, or for quality defects. In addition, the position data of the storage bag of the storage belt for storing the next component are detected by this single image acquisition. Those from the individual NEN color channels to be extracted information can be divided according to the tasks to be examined arbitrarily, for example, as follows: Image channel 1 with lighting type 1: position of the storage pocket of the storage tape for positioning of the next component. Image channel 2 with lighting type 2: quality inspection of the component (cracks, laser marks, eruptions, ...). Image channel 3 with lighting type 3: additional inspections for special components or customer-specific faults.

In one variant of the integrated handling / inspection device, the component is filed "blind." This means that the actual depositing process is based on information or position data obtained before the depositing process from the image recording associated with the previous component Moment of the depositing process, the camera does not see the deposit point in the center of the second turning device, since the currently depositing sensor obstructs the view.

Information or position data as to whether a component is twisted, in a variant, provides a camera on the outer circumference of the lower turning device. The information or position data is passed to the controller of the receiving device. The position of the receiving device is known from the image recording of the previously deposited in the storage pocket of the storage tape component. The distance between the two pockets is also known. From this it can be calculated for the next component to be deposited, by which angle and x and y amount the receiving device must be moved.

The further device aspects result in corresponding supplementary or alternative method steps.

The imaginary sensor array presented here is able to manage with fewer image feeds than conventional sensor arrangements. The acquired image data can be evaluated both for Schleuseteilausschleusung as well as for positioning of the actuators of the handling / inspection device. This integrated architecture and enabling approach reduces process time and provides increased inspection quality with increased throughput.

Brief description of the figures

Other features, features, advantages and possible modifications will become apparent to those skilled in the art from the following description, in which the attached drawings. The figures show schematically an optical examination device for a component,

1 shows schematically a component handling device for removing prismatic or cylindrical components from a structured component supply and for depositing on a receiving device in a side view.

Fig. 2 shows schematically the orientation of the various attitude and property sensors of the component handling apparatus of Fig. 1 with respect to the side surfaces of a component.

3 schematically shows one of the position and property sensors arranged on the circumference of one or both turning devices of the component handling device in a plan view.

4 schematically shows a receiving device for use with the component handling device in a perspective view.

Fig. 5 shows schematically one of the attitude and property sensors with associated illumination arrangement for use with the component handling device.

Detailed description of the figures

FIG. 1 shows a component handling device 100 for removing prismatic components B in the form of electronic semiconductor chips from a structured component and illustrating them for depositing on a receiving device 200. The component handling device 100 presented here takes over the components B from a component supply arranged horizontally in the upper region of the component handling device, in this case a wafer wafer, with a stationary ejection unit 110.

The ejection unit 110 operates in the variant shown with a controlled by a controller ECU needle or, for example, operates without contact with a laser beam to release the components individually from the component stock so that they are fed to a first inverter 130. This first turning device 130 is in the form of a star or wheel and has a plurality (in the example shown eight) of the individual components B at its circumference. Each of the pickups 132 is arranged to be in the 0 ° position of the first Turn- device 130 of the ejection unit 110 is closest to receiving a component from the structured component supply at a dispensing point SPS.

The transducers 132 are arranged pointing radially outward on the (imaginary) circumference of the star-shaped or wheel-shaped first turning device 130 and carry the components B. The transducers 132 of the first turning device 130 are radially movable relative to the axis of rotation (here the X axis). Thus, these pickups 132, the components B, each fixed to one of the transducer 132, within a pivot angle - here between 0 ° and 180 ° - promote between component acquisition and handover.

The first turning device 130 rotates the component B, controlled by the not further illustrated control ECU about a first axis, here the X-axis, to a first transfer point ÜS by a first predetermined angle, here 180 °. In this case, the component B is turned about its longitudinal or transverse axis. A second turning device 150, which is similar to the first turning device 130 and has a plurality of here also eight second pickups 152, is configured to receive the component B at the transfer point ÜS from a pickup 132 of the first turning device 130 if the component is in the 0 ° position. Position of the second turning device 130 of the transfer point ÜS is closest.

The second inverter 150 turns the received component B, controlled by the controller ECU, about a second axis, here the Y-axis, about a second predetermined angle, here about 180 °, about its longitudinal or transverse axis and conveys it to one Filing ABS.

The first, second and / or third axes each enclose an angle of 90 ° plus / minus a maximum of 10 ° or 15 ° and are based on a three-dimensional orthogonal coordinate system.

The two star or wheel-shaped turning devices 130, 150 are arranged orthogonal to each other and otherwise agree in their construction. Notwithstanding the representation in FIG. 1, the arrangement of the two turning devices 130, 150 relative to the conveying direction of the receiving device 200 can also be rotated by 90 ° about the Z axis. In this case, the lower turning device 150 is oriented at least approximately transversely to the conveying direction of the receiving device 200. The first and second turning devices 130, 150 are associated with position and property sensors Kl ... K4. As shown in Fig. 1, these sensors are located at several locations throughout the assembly. They are set up to detect position data of the first and second turning devices 130, 150, position data of components B located on the pickups 132, 152 and properties of components B located on the pickups 132, 152. The data obtained is provided to a controller. In the embodiment illustrated here, a first camera arrangement K1 in the center of the first turning device 130 is directed vertically upwards onto the component supply. A second camera arrangement K2 with three cameras - not visible in FIG. 1 - is directed at the periphery of the first turning device 130 at 90 ° onto the component B guided past it. Details of this second camera arrangement K2 will be explained in connection with FIG. A third camera arrangement K3 with three cameras corresponding to the second camera arrangement K2 is directed at the periphery of the second turning device 150 at 90 ° onto the component B guided past it. A fourth camera arrangement K4 is directed in the center of the second turning device 150 to the depositing point ABS or the first receiving point ESI in the receiving device 200.

The control unit ECU is set up to rotate the first turning device 130 about a first axis (in this case the X axis) by means of a first rotary drive DA1 and to move the first turning device 130 along the first axis by means of a first linear drive LA1.

The control unit ECU is furthermore set up to rotate the second turning device 150 by means of a second rotary drive DA2 in a controlled manner over a second axis (here the Y axis) which is not linearly linear with the first axis (here the X axis), and by means of a second one Linear drive LA2 to control the second turning device 150 along the second axis controlled.

The imaging sensors inspect the top and / or side surface (s) of the component B, thereby also providing relevant data for positioning the first and second inverters 130, 150 along and about their axes, and the transducers 132, 152 and those located thereon Components B and the receiving stations.

The component handling device 100 is equipped with a receiving device 200 assigned to the storage location ABS for a component B conveyed there. The receiving device 200 are position and property sensors K4, K5 assigned, which are adapted to position data of the subsidized to the storage area ABS component B, location data and properties of receiving stations ESI, ES2 in the receiving device 200 and the components B located therein and to provide ECU for a control available. In this case, the position and property sensor K5 is a fifth camera arrangement, which is directed to a second window at the second receiving point ES2. The controller ECU is adapted to, by means of a third rotary drive DA3, the receiving device 200 to a the

Ablagestelle ABS containing third axis (here the Z-axis) controlled to rotate and controlled by means of a third and a fourth linear drive LA3, LA4 the receiving device along the first and the second axes controlled. By means of a fourth rotary drive DA4, the controller ECU moves one through the

Receiving device 200 guided carrier 320 along the first axis (here the X axis) controls. This carrier 320 serves to receive the components B in a separate form from the second turning device 150. The turning devices 130, 150 and the rotary drives DA1, DA2, ... each have a connected to the controller ECU, not shown high-resolution rotary angle encoder for determining their respective rotational position.

In the receiving device 200, the third linear drive LA3 is actuated by control signals from the control ECU, the carrier 320 guided by the receiving device 200 along the first axis (here the X axis) controlled by about 100% plus minus 3% maximum of the grid adjacent component receptacles (pockets) of the carrier 320 to proceed. The pitch results from the center distance of two consecutive pockets. The third rotary drive DA3 is set up, controlled by control signals from the ECU control, in response to signals from the imaging property and position sensor in the center of the second turning device 150 one of the receiving points El with there located component recording of the carrier 320 to the Control Z-axis containing the control point controlled by up to plus minus 6 ° to turn.

In the variant shown in FIG. 4, the fourth rotary drive DA4 of the receiving device 200 has a spiked wheel which engages in transport holes 325 of the carrier 320 (storage belt) in order to transport it in the conveying direction. The sprocket rotates preferably only in a forward direction.

In the receiving device 200, a suction and / or blower 340 is provided downstream of the receiving point ESI. With this, through nale driven from the control ECU, as defective or incorrectly placed detected components removed from their pocket.

For sucking the component B in the receivers 132, 152, for holding the component B in the receivers 132, 152, for storing the component B with or without controlled blow-off pulse, and for free blowing of the component B from the pickups 132, 152 These are connected to a not further illustrated pneumatic unit. The pneumatic unit acts, controlled by the controller ECU, the individual transducers 132, 152 valve-controlled to record individually at the respective time or period with positive or negative pressure to the components individually to hold and deliver again.

If the inspection results obtained by means of the control unit ECU and the position and property sensors at the individual stations are positive, the respective component B is deposited in the receiving point ESI currently located at the depositing point ABS, that is to say the pocket of the carrier 320. If the obtained inspection results are negative, the component B is further rotated by a further position to a first extractor 330, where it is sucked off its receiver 152 at the second turning device 150. Insofar as a position and property sensor monitoring this reception point ESI (see also FIG. 5) shows that the deposited component B has a positional or characteristic error after deposition, it is separated from the second suction device 340 located downstream of the reception point ESI Carrier 320 pocket sucked out. Subsequently, in this case, controlled by the controller ECU, the entire receiving device 200 is reset together with the carrier 320 by the center distance of two pockets of the carrier 320 with the third linear drive unit LA3 against the conveying direction of the carrier 320. Then, the next component B is inserted at the second turning device 150 in the released pocket of the carrier 320.

In a further variant, the first receiving point ESI is assigned an additional, not further illustrated, suction device in order to suck off an inclined component at the receiving point ESI. By the position and property sensor K4 or by the position and property sensor K5 on the second window any quality errors can be detected. If the position and property sensor K5 detects a quality error, the receiving device 200 is transported back together with the carrier 320, at the storage location then the component B is sucked out of the pocket of the carrier 320. As illustrated in FIG. 2 in connection with FIG. 1, the camera arrangement K1 is directed as a position and property sensor in the center of the first turning device 130 onto the component supply. Thus, the top surface D2 of the component B is inspected for position and error. In this case, the camera arrangement K1 is set up to carry out a picture feed in each case during the turning movement of the first turning device 130 between two adjacent pickups 132. The controller generates from these image data corresponding correction movements of the ejection unit, the component supply or the wafer and the first turning device 130.

The second camera arrangement K2 is directed as a position and property sensor with its three cameras on the periphery of the first turning device 130 at about 90 ° to the three sides S2, S4 and Dl of the component B. A top view of the camera arrangement K2 with its three cameras K2-1, K2-2 and K2-3 is shown in FIG. 3

illustrated. In this case, the middle camera K2-2 inspects the cover surface D1 of the component B and the two outer camera K2-1 and K2-3 via respective mirrors SP1 and SP2 the side surfaces S2 and S4 of the component B. From the image impressions recorded in this case, it is possible to Defects of the component B on these surfaces also determine the exact position and rotation of the component B at its transducer 132. This information is used in the controller ECU to change the orientation of the first turning device 130 and the second turning device 150 along their axes and rotational orientation when the inspected component B is transferred from the first turning device 130 to the second turning device 150 at the transfer point ÜS ,

The third camera arrangement K3 is directed as a position and property sensor with its three cameras externally at the periphery of the second turning device 150 at about 90 ° to the three sides Sl, S3 and D2 of the component B. This camera arrangement K3 corresponds in its construction and its arrangement to the camera arrangement K2 with its three cameras and two mirrors in FIG. 3. In addition to possible errors of the component B on these surfaces, the exact location and rotation of the component B can be determined from the image acquisitions recorded here at its receiver 152 of the second turning device 150 determine. This information is used in the controller ECU to change the orientation of the second turning device 150 and the receiving device 200 along their axes and rotational orientations, when the inspected component B at the transfer point ÜS of the second turning point direction 150 located in the depositing point ABS located receiving point ESI, so the bag of the carrier 320 is stored.

The fourth camera arrangement K4 is directed as a position and property sensor in the center of the second turning device 150 to the receiving point El in the receiving device 200. This camera arrangement K4 is also set up to carry out an image intake in each case during the turning movement of the second turning device 150 between two adjacent receivers. The controller ECU then causes corresponding correction movements of the second inverter 150 and the receiver 200.

The position and property sensor 400 illustrated in FIG. 5 is a variant of the camera arrangements K1-K5 as an imaging sensor. This sensor 400 has a visible light spectrum capturing camera chip 410. In this imaging sensor 400, the three distinct detection spectra are red color range - 630nm plus minus 30nm - green color range - 530nm plus minus 60nm - and blue color range - 460nm plus minus 50nm - a color sensor designed.

The imaging sensor 400 is associated with a semitransparent mirror 420, which is arranged at an angle of approximately 45 ° to the optical axis of the camera chip 410. The semitransparent mirror 420 serves to optically couple colored light of two detection spectra, in this case the green color range and the blue color range, from corresponding light sources 440 and to direct them to a cover surface of the component B. This directed to the component B light in the green and blue color range detects the camera chip 410. Depending on the spatial conditions, other deflection mirrors, prisms, color filters or lenses may be provided.

In another embodiment, a further light source 450 is arranged around the receiving point ESI located at the depositing point ABS and supplies scattered light at an angle of approximately 5 ° -45 ° in the red color region to the cover surface of the component B. This also points to the component B Light in the red color range is detected by the camera chip 410.

Individual ones of the optically effective elements and / or the radiation sources may be arranged to be aligned and / or adjusted / focused independently of others. The camera chip 410 in the present variant is a color camera with three individual channels R, G, B. However, it can also be a camera with multiple channels. The three color channels of the camera can be addressed / read out separately. With a single image pick-up, the component B is inspected for defects, for example the oblique placement of the component B, so that it is not correctly positioned in the intended pocket of the carrier 320, or on quality defects. In addition, the exact position data of the pocket of the carrier 320 for depositing the next component B are detected by this single image recording. The information to be obtained from the individual color channels is divided as follows: Image channel 1 with illumination type 1: position of the deposition pocket of the deposition tape for positioning the next component. Picture channel 2 with lighting type 2: quality inspection of the

Component (cracks, laser marks, eruptions, ...). Image channel 3 with lighting type 3: additional inspections for special components or customer-specific faults.

The imaging sensor technology presented here requires fewer image feeds than conventional sensor arrangements in order to realize poor part ejection and positioning of the actuators.

It should be noted that although numerical ranges and numerical values have been disclosed herein, all numerical values between the disclosed values and each numeric sub-range within the stated ranges are also to be regarded as disclosed.

The above-described variants of the device as well as their construction and operating aspects serve only for a better understanding of the structure, the mode of operation and the properties; they do not restrict the revelation to the exemplary embodiments. The figures are partially schematic, wherein essential properties and effects are shown partially enlarged significantly to illustrate the functions, principles of operation, technical features and features. In this case, every mode of operation, every principle, every technical embodiment and every feature which is / are disclosed in the figures or in the text, with all claims, every feature in the text and in the other figures, other modes of operation, principles, technical embodiments and features contained in or arising from this disclosure are freely and arbitrarily combined, so that all conceivable combinations are assigned to the described procedure. There are also combinations between all individual versions in the text, that is in each section of the description, in the claims and also combinations between different variants in the text, in the claims and in the Fig. Includes. Also, the claims do not limit the disclosure and thus the combination options of all identified features with each other. All disclosed features are also explicitly disclosed individually and in combination with all other features herein.

reference numeral

Filing ABS

Component B

Side surfaces Sl, S2, S3, S4 of the component

Cover surfaces Dl, D2 of the component

first rotary drive DA1 for rotating the first turning device about the first axis (X-axis)

second rotary drive DA2 for rotating the second turning device about the second axis (Y-axis)

third rotary drive DA3 for turning the receiving device by one

Storage location ABS containing third axis (Z-axis)

fourth rotary drive DA4 of the receiving device transports the carrier in

conveying direction

first linear drive LA1 for moving the first turning device along the first axis (X-axis)

second linear drive LA2 for moving the second turning device along the second axis (Y-axis)

third linear drive LA3 for moving the receiving device along the first axis fourth linear drive LA4 for moving the receiving device along the second axis

fifth linear actuator LA5 for moving a support guided by the receiving device along the first axis (X-axis)

first receiving point ESI

second receiving point ES2

Control ECU

Position and Property Sensors Kl ... K4, K5

first camera assembly Kl in the center of the first turning device directed vertically upwards

second camera arrangement K2 with three cameras is directed at the periphery of the first turning device at 90 ° to the component guided past it

third camera arrangement K3 with three cameras is directed at the periphery of the second turning device at 90 ° to the component passed thereto

fourth camera arrangement K4 is directed in the center of the second turning device to the storage location or the first receiving point in the receiving device fifth camera assembly K5 is directed to the second window at the second receiving point

Mirror SP1, SP2

Donation point SPS Überga order ÜS

Component handling apparatus 100

Ejection unit 110

first turning device 130

first sensors 132

second turning device 150

second pickups 152

Receiving device 200

Carrier 320

Transport holes 325

first aspirator 330

Outfeed station 335

Extractor and / or blower 340 Sensor 400

Camera chip 410

semi-transparent mirror 420

Light sources 440

another light source 450

Claims

claims

1. Imaging sensor (K1..K5), suitable and intended for detecting position and / or properties of a component (B), in particular in one

Component handling device, wherein the imaging sensor

- Equipped with at least two different detection spectra (R, G, B), in particular

is suitable and arranged for detecting property errors and / or positional errors of a component (B) located in a receiving point of a receiving device,

- Cooperates with radiation sources, which are matched with respect to radiation spectrum and radiation angle and / or radiation reflection angle relative to the imaging sensor on this, and wherein

- The imaging sensor is suitable and adapted to provide for each of its acquisition spectra of a subordinate image analysis a separate image collection.

2. Imaging sensor according to claim 1, wherein

- The at least two diverging detection spectra red color range - 630nm plus minus 30 nm - green color range - 530 nm plus minus 60 nm - and / or blue color range - 460nm plus minus 50 nm - a color sensor are configured.

3. Imaging sensor according to claim 1 or 2, wherein

- Optically effective elements are provided which are adapted to the sensor with a component in at least one of the receiving points (ESI, ES2) in the receiving device (200) and / or in the receiving device (200) guided carrier (320) optically couple.

4. Imaging sensor according to one of claims 1 to 3, are associated with the optically active elements such as deflecting mirror or prism in the center of the turning device, which are adapted to the sensor with a component in at least one receiving points (ESI, ES2) in a receiving device ( 200) and / or to optically couple with the carrier (320) guided in the receiving device (200).

5. Imaging sensor according to claim 4, wherein the optically active elements deflecting mirrors, prisms, color filters and / or lenses.

6. Imaging sensor according to one of claims 1 to 5, wherein the individual of the optically active elements and / or the radiation sources are adapted to be independent of others aligned and / or adjusted / focused.

7. Imaging sensor according to one of claims 1 to 6, to which a semitransparent mirror 420 is associated, which is arranged at an angle of approximately 45 ° to the optical axis of the camera chip 410 and serves to colored light of two different detection spectra from corresponding light sources (440) optically coupled and directed to an inspection area, and wherein this directed to the inspection area light is reflected there and is detected by at least one camera chip (410) of the imaging sensor.

8. An imaging sensor according to claim 7, wherein a light source (450) is associated as a ring light source around the inspection site, and provides the scattered light at an angle of about 5 ° - 45 ° in a third color range, and wherein this directed to the inspection area light there is reflected and detected by at least one camera chip (410) of the imaging sensor.

9. Imaging sensor according to one of the preceding claims, wherein the at least one camera chip (410) is part of a color camera with three individual channels (R, G, B), which can be addressed and / or read separately from each other, wherein the camera Chip (410) is adapted to inspect the inspection area, which in particular comprises a component (B) with a single image recording, and on the individual color channels different image information to the controller (ECU) supplies.