DE102004028211A1 - Circuit board made from epoxy resin for chip structures comprises fixing sections for holding the circuit board, a fixing section in which components are soldered and a structure for changing the board stiffness - Google Patents
Circuit board made from epoxy resin for chip structures comprises fixing sections for holding the circuit board, a fixing section in which components are soldered and a structure for changing the board stiffness Download PDFInfo
- Publication number
- DE102004028211A1 DE102004028211A1 DE200410028211 DE102004028211A DE102004028211A1 DE 102004028211 A1 DE102004028211 A1 DE 102004028211A1 DE 200410028211 DE200410028211 DE 200410028211 DE 102004028211 A DE102004028211 A DE 102004028211A DE 102004028211 A1 DE102004028211 A1 DE 102004028211A1
- Authority
- DE
- Germany
- Prior art keywords
- circuit board
- printed circuit
- board according
- changing
- slots
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0271—Arrangements for reducing stress or warp in rigid printed circuit boards, e.g. caused by loads, vibrations or differences in thermal expansion
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09009—Substrate related
- H05K2201/09063—Holes or slots in insulating substrate not used for electrical connections
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10598—Means for fastening a component, a casing or a heat sink whereby a pressure is exerted on the component towards the PCB
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10621—Components characterised by their electrical contacts
- H05K2201/10689—Leaded Integrated Circuit [IC] package, e.g. dual-in-line [DIL]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/20—Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
- H05K2201/2009—Reinforced areas, e.g. for a specific part of a flexible printed circuit
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0058—Laminating printed circuit boards onto other substrates, e.g. metallic substrates
Abstract
Description
Die Erfindung betrifft eine Leiterplatte, insbesondere aus Epoxydharz, mit einer gedruckten elektrischen Schaltung, die mit elektronischen und mikromechanischen Bauteilen bestückbar ist, wobei die Leiterplatte wenigstens zwei Befestigungsabschnitte zum Anbringen der Leiterplatte an einem Halter bzw. in einem Gehäuse und wenigstens einen Bestückungsabschnitt aufweist, in dem streßempfindliche elektronische und/oder mikromechanische Bauteile einlötbar sind.The The invention relates to a printed circuit board, in particular of epoxy resin, with a printed electrical circuit that works with electronic and micromechanical components can be equipped, wherein the circuit board at least two mounting portions for mounting the circuit board on a holder or in a housing and at least one mounting section in which stress sensitive electronic and / or micromechanical components are soldered.
Bei derartigen Leiterplatten besteht das Problem, daß es nach ihrer Befestigung an einem Halter bzw. in einem Gehäuse aufgrund von Temperatureinwirkung zu Verformungen der Leiterplatte kommt. Daneben können Verformungen auch bei der Montage der Leiterplatte und/oder durch Änderungen im Befestigungsbereich auftreten. Derartige Verformungen führen zu mechanischen Beanspruchungen, insbesondere Streßeinwirkungen, auf die auf der Leiterplatte montierten Bauelemente.at Such circuit boards have the problem that it after their attachment on a holder or in a housing due to the effect of temperature comes to deformation of the circuit board. In addition, deformations can also during assembly of the printed circuit board and / or through changes occur in the attachment area. Such deformations lead to mechanical stresses, in particular stress, on the the circuit board mounted components.
Mit der Erfindung soll eine Leiterplatte der eingangs genannten Gattung im Hinblick auf eine Verringerung der mechanischen Streßeinwirkung auf die darauf montierten Bauelemente verfügbar gemacht werden.With The invention is a printed circuit board of the type mentioned with a view to reducing the mechanical stress be made available on the components mounted thereon.
Erfindungsgemäß wird dies durch die im Patentanspruch 1 genannten Merkmale gelöst. Bevorzugte Merkmale, die die Erfindung vorteilhaft weiterbilden, sind den nachgeordneten Patentansprüchen zu entnehmen.According to the invention this is solved by the features mentioned in claim 1. Preferred features, which further develop the invention advantageously, are the downstream claims refer to.
VORTEILE DER ERFINDUNGADVANTAGES OF INVENTION
Vorteilhaft wird durch die Erfindung demgemäß eine Leiterplatte verfügbar gemacht, die unter Berücksichtigung der räumlichen Spannungsverteilungen in der Leiterplatte eine Entkopplung streßempfindlicher Bauteile von äußeren mechanischen Beanspruchungen, insbesondere Verspannungen, ermöglicht. Die Ausbildung der Leiterplatte ist dabei in günstiger Weise an die Konfiguration der zu entkoppelnden Leiterplattenbereiche durch Änderung der mechanischen Plattensteifigkeit anpaßbar.Advantageous The invention accordingly provides a printed circuit board available made that under consideration the spatial Voltage distributions in the circuit board decoupling stress sensitive components from outer mechanical Stress, especially tensions, allows. The training of PCB is cheaper Way to the configuration of the decoupled PCB areas by change the mechanical plate stiffness adaptable.
Die erfindungsgemäß vorgesehene die Plattensteifigkeit verändernde Struktur kann vorteilhaft die Steifigkeit der Leiterplatte an definierten Stellen verringern und ermöglicht auf diese Weise die mechanische Entkopplung der mit streßempfindlichen Bauteilen bestückten Leiterplattenbereiche. Alternativ besteht auch die Möglichkeit, die Leiterplatte an kritischen Stellen zu versteifen und/oder an unkritischen Stellen abzudünnen. Die die Plattensteifigkeit verändernde Struktur ist dabei mit Materialschwächungen und/oder Materialverstärkungen gebildet, wobei die Materialschwächung durch Ausnehmungen, vorzugsweise gerade und/oder gekrümmte und/oder abgewinkelte und/oder verzweigende Schlitze und Schlitzabschnitte gebildet sind, die ggf. parallel zueinander beabstandet sind. Nach einer bevorzugten Ausgestaltung der Erfindung sind die Ausnehmungen nahe der Befestigungsabschnitte gekrümmt vorgesehen, also quer zu den mechanischen Spannungseinleitungs- und/oder Verteilungsrichtungen.The provided according to the invention changing the plate stiffness Structure can advantageously be defined by the rigidity of the circuit board Reduce and enable digits in this way the mechanical decoupling of stress sensitive Assembled components PCB areas. Alternatively, there is also the possibility To stiffen and / or connect the PCB at critical points thin out uncritical places. The plate stiffness changing Structure is here with material weakenings and / or material reinforcements formed, the material weakening through recesses, preferably straight and / or curved and / or angled and / or branching slots and slot sections are formed, which are optionally spaced parallel to each other. To A preferred embodiment of the invention are the recesses Curved provided near the mounting portions, ie transverse to the mechanical Spannungseinleitungs- and / or distribution directions.
Für die Veränderung der Plattensteifigkeit durch Materialverstärkung ist vorzugsweise das Aufbringen einer oder mehrerer Aussteifungsschichten auf die Oberseite und, falls von der Schaltung möglich, auch/oder auf die Unterseite der Leiterplatte vorgesehen, wobei die Aussteifungsschichten wenigstens teilflächig, vorzugsweise aufgeklebt sind.For the change the plate rigidity by material reinforcement is preferably that Apply one or more stiffening layers to the top and, if possible from the circuit, also / or provided on the underside of the circuit board, wherein the stiffening layers at least part of the surface, preferably glued are.
Vorzugsweise ist die Materialverstärkung im Bestückungsabschnitt vorgesehen, wobei insbesondere plattenförmige Abschnitte für die Materialverstärkung, jedoch auch alternativ oder ergänzend Rippen und Stege in jeweils erforderlicher geometrischer Struktur vorgesehen sein können, um den jeweiligen mechanischen Spannungseinleitungs- und/oder Verteilungsrichtungen Rechnung zu tragen.Preferably is the material reinforcement in the component section provided, in particular plate-shaped sections for the material reinforcement, however also alternatively or additionally Ribs and webs in each required geometric structure can be provided around the respective mechanical voltage input and / or distribution directions Take into account.
Die Veränderung der Plattensteifigkeit kann vorteilhaft durch ein- und/oder ausgefräste Strukturen in der Leiterplatte sowie Abdünnung oder Versteifung bestimmter Leiterplattenbereiche vorgenommen sein. Beispielsweise können auf der Leiterplatte Schlitze eingefräst sein, wodurch sich bei Krafteinwirkung die Leiterplatte im wesentlichen längs der verbleibenden Stege verformt. Andererseits und/oder ergänzend können auch an kritischen Stellen der Leiterplatte Versteifungen und an unkritischen Stellen Abdünnungen vorgesehen sein.The change The plate stiffness can advantageously by on and / or milled structures in the circuit board as well as thinning or stiffening certain PCB areas be made. For example, you can slotted on the circuit board slots, resulting in force the circuit board substantially along the remaining webs deformed. On the other hand and / or in addition can also be critical places the PCB stiffeners and at uncritical places thinnings be provided.
Vorteilhaft wird durch die Erfindung die Voraussetzung dafür geschaffen, kostengünstigere Chipverpackungen für streßempfindliche elektronische – und insbesondere mikromechanische – Chipstrukturen einzusetzen. Dadurch lassen sich teure Spezialverpackungen durch billigere Standardverpackungen, z.B. Moldgehäuse, ersetzen.Advantageous is created by the invention, the prerequisite for less expensive Chip packaging for stress-sensitive electronic and in particular micromechanical chip structures use. This allows expensive special packaging through cheaper standard packaging, e.g. Mold housing, replace.
ZEICHNUNGENDRAWINGS
Nachfolgend wird die Erfindung unter Bezugnahme auf die beigefügten Zeichnungen näher erläutert.following the invention is with reference to the accompanying drawings explained in more detail.
Es zeigen:It demonstrate:
BESCHREIBUNG DER AUSFÜHRUNGSBEISPIELEDESCRIPTION THE EMBODIMENTS
In
Etwa
in der Mitte der Leiterplatte
Bei
dem in
Die
Befestigungsbohrungen
In
Abweichend
von der in
Eingebracht
sind in die Leiterplatte
Gut
erkennbar ist in
In
Der
Grundriß der
Versteifungsplatte
BEZUGSZEICHENLISTE: LIST OF REFERENCE NUMBERS:
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410028211 DE102004028211A1 (en) | 2004-06-09 | 2004-06-09 | Circuit board made from epoxy resin for chip structures comprises fixing sections for holding the circuit board, a fixing section in which components are soldered and a structure for changing the board stiffness |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410028211 DE102004028211A1 (en) | 2004-06-09 | 2004-06-09 | Circuit board made from epoxy resin for chip structures comprises fixing sections for holding the circuit board, a fixing section in which components are soldered and a structure for changing the board stiffness |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004028211A1 true DE102004028211A1 (en) | 2005-12-29 |
Family
ID=35454990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410028211 Withdrawn DE102004028211A1 (en) | 2004-06-09 | 2004-06-09 | Circuit board made from epoxy resin for chip structures comprises fixing sections for holding the circuit board, a fixing section in which components are soldered and a structure for changing the board stiffness |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004028211A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008028300A1 (en) * | 2008-06-13 | 2009-12-24 | Epcos Ag | Printed circuit board with flexible area and method of manufacture |
DE102008060487A1 (en) * | 2008-12-05 | 2010-06-10 | Sennheiser Electronic Gmbh & Co. Kg | Electronic device e.g. microphone, has printed circuit board including sections with electrical and/or electronic unit and electronic and/or electrical unit, where one of sections is partially enclosed by milled edge of circuit board |
EP2128519A3 (en) * | 2008-05-30 | 2011-02-16 | Toshiba Lighting & Technology Corporation | Lighting apparatus and substrate having plurality of light-emitting elements mounted thereon and incorporated in this lighting apparatus |
US8128263B2 (en) | 2008-09-16 | 2012-03-06 | Toshiba Lighting & Technology Corporation | Light source unit and lighting apparatus having light-emitting diodes for light source |
US8491163B2 (en) | 2009-09-25 | 2013-07-23 | Toshiba Lighting & Technology Corporation | Lighting apparatus |
-
2004
- 2004-06-09 DE DE200410028211 patent/DE102004028211A1/en not_active Withdrawn
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9279575B2 (en) | 2008-05-30 | 2016-03-08 | Kabushiki Kaisha Toshiba | Light emitting module having heat conductive substrate |
EP2128519A3 (en) * | 2008-05-30 | 2011-02-16 | Toshiba Lighting & Technology Corporation | Lighting apparatus and substrate having plurality of light-emitting elements mounted thereon and incorporated in this lighting apparatus |
US8545051B2 (en) | 2008-05-30 | 2013-10-01 | Toshiba Lighting & Technology Corporation | Lighting apparatus with heat conductive substrate |
US8556460B2 (en) | 2008-05-30 | 2013-10-15 | Toshiba Lighting & Technology Corporation | Lighting apparatus and light-emitting element mounting substrate having stress absorbing means |
US8668355B2 (en) | 2008-05-30 | 2014-03-11 | Toshiba Lightning & Technology Corporation | Light emitting module having heat conductive substrate |
US9303855B2 (en) | 2008-05-30 | 2016-04-05 | Toshiba Lighting & Technology Corporation | Light emitting module having heat conductive substrate |
US9410685B2 (en) | 2008-05-30 | 2016-08-09 | Toshiba Lighting & Technology Corporation | Light emitting module having heat conductive substrate |
US9035189B2 (en) | 2008-06-13 | 2015-05-19 | Epcos Ac | Circuit board with flexible region and method for production thereof |
DE102008028300A1 (en) * | 2008-06-13 | 2009-12-24 | Epcos Ag | Printed circuit board with flexible area and method of manufacture |
DE102008028300B4 (en) | 2008-06-13 | 2021-10-07 | Tdk Electronics Ag | Flexible area printed circuit board and method of manufacture |
US8128263B2 (en) | 2008-09-16 | 2012-03-06 | Toshiba Lighting & Technology Corporation | Light source unit and lighting apparatus having light-emitting diodes for light source |
DE102008060487A1 (en) * | 2008-12-05 | 2010-06-10 | Sennheiser Electronic Gmbh & Co. Kg | Electronic device e.g. microphone, has printed circuit board including sections with electrical and/or electronic unit and electronic and/or electrical unit, where one of sections is partially enclosed by milled edge of circuit board |
US8491163B2 (en) | 2009-09-25 | 2013-07-23 | Toshiba Lighting & Technology Corporation | Lighting apparatus |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed |
Effective date: 20110420 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20120103 |