WO2005120238A2 - Method and apparatus for controlling freezing nucleation and propagation - Google Patents
Method and apparatus for controlling freezing nucleation and propagation Download PDFInfo
- Publication number
- WO2005120238A2 WO2005120238A2 PCT/US2005/016883 US2005016883W WO2005120238A2 WO 2005120238 A2 WO2005120238 A2 WO 2005120238A2 US 2005016883 W US2005016883 W US 2005016883W WO 2005120238 A2 WO2005120238 A2 WO 2005120238A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- zone
- surface area
- volume ratio
- fluid
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/14—Safety or protection arrangements; Arrangements for preventing malfunction for preventing damage by freezing, e.g. for accommodating volume expansion
Definitions
- the present invention relates generally to an apparatus and method of controlling freezing in a liquid system, such as may be useful for transferring heat from electronic devices and components thereof.
- the invention protects against expansion of fluid during freezing by initiating the expansion of frozen fluid in the direction of zones having progressively decreasing surface area to volume ratios.
- Freezing is a transient non-equilibrium process, during which phase change occurs with release of latent heat as liquid or fluid cools below freezing temperature due to ambient cooling conditions.
- water or some water based-mixtures are cooled below freezing, the material changes from a liquid state to a solid state, and undergoes a significant expansion in volume, which is as much as 10% or more for water or water-based mixtures.
- water freezes in a pipe or other confined spaces its volume expands. Water that has frozen in confined spaces does more than simply clog the pipes and block flow.
- freezing occurs in a confined space like a steel pipe, the ice will expand and exert extreme pressure which often leads to bursting of the pipe or separation of a joint and cause serious damage.
- This phenomenon is a common failure mode in hot-water heating systems and automotive cooling systems. Ice forming in a confined space does not always cause cracking where ice blockage occurs. Rather, following a complete ice blockage in a confined space, continued freezing and expansion inside the confined space can cause water pressure to increase downstream, which could lead to pipe failure and/or cracking in these areas. Upstream from the ice blockage the water can retreat back towards its inlet source, and there is little pressure buildup to cause cracking. Relative to other liquids, water-based mixtures are preferred for use in liquid cooling systems due to advantages in thermal properties and health and safety concerns. Liquid cooling systems for electronic devices are occasionally subjected to sub- freezing environments during shipping, storage, or in use.
- the system must be designed to tolerate any volume expansion that would occur.
- Additives used to lower the freezing point, such as antifreeze, are potentially poisonous and flammable and can damage mechanical components, sensitive sensors, and electronics. Therefore, to use pure water or substantially pure water in such a system, an apparatus for and method of controlling freezing nucleation and propagation is needed, such that the system can tolerate the volume expansion caused by freezing of the aforementioned fluid without damaging electronic components or affecting system performance.
- the present invention protects components and pipes of a liquid cooling system from cracking related to an expansion of volume due to freezing of the fluid within the system.
- the present invention provides an apparatus for and method of controlling freezing nucleation and propagation in a liquid system having one or more components coupled and characterized by a plurality of surface area to volume ratios so that when freezing occurs, the fluid expands from an initial zone having a highest surface area to volume ratio in the direction of one or more zones having progressively decreasing surface area to volume ratios.
- the present invention manages and designs surface area to volume ratios of one or more components as well as regions within the components, including heat exchangers, inlet and outlet ports and tubular members, so that when freezing occurs, the volume expands in the direction that can accept the expanded volume.
- an apparatus for controlling freezing nucleation and propagation in a liquid system includes a heat exchanger having multiple zones characterized by surface area to volume ratio.
- the apparatus also includes means for initiating freezing of a fluid from an initial zone which results in volume expansion during freezing through the multiple zones having progressively lower surface area to volume ratios in the direction of a member having a final zone characterized by a final surface area to volume ratio.
- the heat exchanger can be replaced by any member in a liquid system.
- the surface area to volume ratio of the final zone is preferably lower than the surface area to volume ratio of the initial zone.
- the final zone can accommodate an expanded volume of at least 10% of all the liquid volume present in each zone, including the final zone, when the fluid freezes.
- the final zone can be a tubular member.
- the tubular member can have elasticity sufficient to expand outwardly to accommodate the volume expansion caused by the freezing of the fluid.
- the initial zone is internal to a heat exchanger.
- the heat exchanger can include an inlet port extending through a first opening of the heat exchanger for conveying the fluid to a plurality of channels and passages and an outlet port extending through a second opening for discharging the fluid from the plurality of channels and passages.
- the plurality of channels and passages can be formed in porous copper foam.
- the plurality of channels and passages can be formed of microchannels.
- the plurality of channels of passages can be formed of micropins or a layered meshed structure. Multiple fluid pathways emanating from the initial zone may necessitate identification of multiple zones.
- the apparatus includes a plurality of zones located between the initial and final zones, wherein a zone surface area to volume ratio is calculated for each zone. Preferably, the zone surface area to volume ratio of each zone progressively decreases from the initial zone in the direction of the final zone.
- the apparatus can include one or more compressible objects coupled within the final zone wherein pressure exerted on the compressible object by the freezing fluid increases a volume of the final zone. The compressible objects are preferably confined within the final zone.
- the compressible objects can be made of one of the following: sponge, foam, air-filled bubbles, and balloons.
- the sponge and foam are hydrophobi
- the apparatus can also include at least one air pocket disposed in the final zone wherein the air pocket accommodates the expansion by the freezing fluid.
- the apparatus can include at least one flexible object coupled to the final zone wherein pressure exerted on the flexible object by the freezing fluid increases a volume of the final zone.
- the flexible object is secured within the final zone.
- the flexible object can be made of one of the following: rubber, plastic, and foam.
- a method of controlling freezing nucleation and propagation in a liquid system comprises the steps of initiating freezing of fluid from an initial zone of a heat exchanger and characterized by an initial surface area to volume ratio; and directing the frozen fluid to a final zone which is a tubular member characterized by a final surface area to volume ratio.
- Figure 1 illustrates one embodiment of a closed-loop fluid system for implementing embodiments of the present invention.
- Figure 2 illustrates one embodiment of a heat exchanger divided into logical zones characterized by surface area to volume ratios, in accordance with the present invention.
- FIG. 1 shows a schematic diagram of a closed-loop fluid system 100 for implementing embodiments of the present invention.
- the system 100 includes a heat exchanger 20 attached to a heat producing device 55 (shown as an integrated circuit attached to a circuit board, but which could also be a circuit board or other heat producing device), a pump 30 for circulating fluid, a heat rejector 40, which can include a plurality of fins 46 for further assisting in conducting heat away from the system 100, and a controller 50 for a pump input voltage based on a temperature measured at the heat exchanger 20.
- a heat producing device 55 shown as an integrated circuit attached to a circuit board, but which could also be a circuit board or other heat producing device
- a pump 30 for circulating fluid
- a heat rejector 40 which can include a plurality of fins 46 for further assisting in conducting heat away from the system 100
- a controller 50 for a pump input voltage based on a temperature measured at the heat exchanger 20.
- the fluid travels through microchannels 24 of the heat exchanger 20, the heat rejector 40, and through tubing lengths 114, 112 and 110 before being returned to the inlet of the pump 30.
- a spreader (not shown) is preferably coupled between the heat producing device 55 and the microchannels 24.
- the controller 50 is understood to be an electronic circuit that may take input signals from thermometers in the heat exchanger 20, or from thermometers in the device 55 being cooled, through which signals are transmitted along signal lines 120.
- the controller 50 based upon the input signals may regulate flow through the pump 30 by applying signals to a power supply (not shown) associated with the pump 30 along signal lines 122 to achieve the desired performance. While this embodiment specifies a flow direction, it will be understood that the present invention can be implemented with the reverse flow direction.
- FIG. 2 illustrates one embodiment of a heat exchanger 200 divided into zones 1, 2, 3A and 3B and characterized by surface area to volume ratios.
- the heat exchanger 200 is coupled to tubular members 210 and 260 disposed in zone 4A and 4B, respectively, and also characterized by surface area to volume ratios.
- zone 1 is the initial zone and the tubular members represent a final zone or zones.
- Zone 1 is preferably one or more microchannels (not shown) or a porous structure (not shown). Alternatively, Zone 1 can be one or more micropins (not shown).
- Surface areas are calculated for each zone, preferably based directly on model geometry.
- a zone can be constructed of one or more structures, such as copper foam, to have a desired surface area to volume ratio throughout the heat exchanger 200. Volumes are calculated for each zone, preferably based directly on model geometry. The surface to volume ratio of each zone is calculated by dividing the surface area of each zone by the volume of each zone. The resulting surface to volume ratio values of adjacent zones are compared.
- Freeze progression is deemed favorable when the surface area to volume ratio of the heat exchanger 200 progressively decreases outward from zone 1 to the tubular members at the onset of freezing, hi particular, the surface area to volume ratio of zone 1 is relatively high and the surface area to volume ratios of the tubular members (zones 4A, 4B) are relatively low.
- the fluid expands from a zone having the highest surface area to volume ratio in the direction of one or more zones having progressively decreasing surface area to volume ratios.
- the heat exchanger 200 including the tubular members 210 and 260, can include many zones each with a different surface area to volume ratio.
- the zone surface area to volume ratio of adjacent zones progressively decreases from the heat exchanger 200 in the direction of the tubular members 210 and 260; the zone surface area to volume ratio decreases in the following order of zones: 1>2>3B>4B and 1>2>3A>4A.
- the tubular members 210 and 260 are designed to accommodate the necessary volume expansion.
- the tubular members 210 and 260 preferably include compliant materials to accommodate an expanded volume of at least 10% when the fluid freezes.
- the tubular members 210 and 260 have elasticity sufficient to expand outwardly to accommodate the volume expansion caused by the freezing of the fluid.
- the one or more compressible objects can be coupled to the tubular member 210 and 260 wherein pressure exerted on the compressible object by the freezing fluid increases a volume of the tubular members 210 and 260.
- the compressible objects are confined within the tubular member and made of one of the following: sponge, foam, air-filled bubbles, sealed tubes and balloons. Other types of compressible objects can be used.
- the sponge and foam can be hydrophobi
- at least one air pocket (not shown) can be disposed in the tubular members 210 and 260 wherein the air pocket (not shown) accommodates the expansion by the freezing fluid.
- At least one flexible object is coupled to the tubular members 210 and 260 wherein pressure exerted on the flexible object (now shown) by the freezing fluid increases a volume of the tubular members 210 and 260.
- the flexible object (not shown) is preferably secured within the tubular member and made of one of the following: rubber, plastic, and foam. It will be appreciated that additional compliant materials may also be employed to withstand the expansion of freezing fluid.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007515166A JP2008503071A (en) | 2004-06-04 | 2005-05-12 | Freezing control device and freezing control method |
DE112005001254T DE112005001254T5 (en) | 2004-06-04 | 2005-05-12 | Method and apparatus for controlling freezing nucleation and spreading |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57726204P | 2004-06-04 | 2004-06-04 | |
US60/577,262 | 2004-06-04 | ||
US11/049,202 US7293423B2 (en) | 2004-06-04 | 2005-02-01 | Method and apparatus for controlling freezing nucleation and propagation |
US11/049,202 | 2005-02-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005120238A2 true WO2005120238A2 (en) | 2005-12-22 |
WO2005120238A3 WO2005120238A3 (en) | 2007-05-24 |
Family
ID=35446177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/016883 WO2005120238A2 (en) | 2004-06-04 | 2005-05-12 | Method and apparatus for controlling freezing nucleation and propagation |
Country Status (5)
Country | Link |
---|---|
US (1) | US7293423B2 (en) |
JP (1) | JP2008503071A (en) |
DE (1) | DE112005001254T5 (en) |
TW (1) | TWI338115B (en) |
WO (1) | WO2005120238A2 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8464781B2 (en) | 2002-11-01 | 2013-06-18 | Cooligy Inc. | Cooling systems incorporating heat exchangers and thermoelectric layers |
US7836597B2 (en) | 2002-11-01 | 2010-11-23 | Cooligy Inc. | Method of fabricating high surface to volume ratio structures and their integration in microheat exchangers for liquid cooling system |
US7806168B2 (en) | 2002-11-01 | 2010-10-05 | Cooligy Inc | Optimal spreader system, device and method for fluid cooled micro-scaled heat exchange |
US7591302B1 (en) | 2003-07-23 | 2009-09-22 | Cooligy Inc. | Pump and fan control concepts in a cooling system |
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US7715194B2 (en) | 2006-04-11 | 2010-05-11 | Cooligy Inc. | Methodology of cooling multiple heat sources in a personal computer through the use of multiple fluid-based heat exchanging loops coupled via modular bus-type heat exchangers |
CN200994225Y (en) * | 2006-12-29 | 2007-12-19 | 帛汉股份有限公司 | Circuit substrate structure |
TW200934352A (en) | 2007-08-07 | 2009-08-01 | Cooligy Inc | Internal access mechanism for a server rack |
US8250877B2 (en) | 2008-03-10 | 2012-08-28 | Cooligy Inc. | Device and methodology for the removal of heat from an equipment rack by means of heat exchangers mounted to a door |
US20110056667A1 (en) * | 2008-07-15 | 2011-03-10 | Taras Michael F | Integrated multi-circuit microchannel heat exchanger |
CN102171378A (en) | 2008-08-05 | 2011-08-31 | 固利吉股份有限公司 | Bonded metal and ceramic plates for thermal management of optical and electronic devices |
JP6439326B2 (en) | 2014-08-29 | 2018-12-19 | 株式会社Ihi | Reactor |
US10175005B2 (en) * | 2015-03-30 | 2019-01-08 | Infinera Corporation | Low-cost nano-heat pipe |
AR105277A1 (en) * | 2015-07-08 | 2017-09-20 | Chart Energy & Chemicals Inc | MIXED REFRIGERATION SYSTEM AND METHOD |
US20190116693A1 (en) * | 2016-03-31 | 2019-04-18 | Clear Px Technologies Ltd | Temperature controlling device and system having static cooling capacity |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4474172A (en) * | 1982-10-25 | 1984-10-02 | Chevron Research Company | Solar water heating panel |
Family Cites Families (156)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US596062A (en) | 1897-12-28 | Device for preventing bursting of freezing pipes | ||
US2273505A (en) | 1942-02-17 | Container | ||
US2039593A (en) * | 1935-06-20 | 1936-05-05 | Theodore N Hubbuch | Heat transfer coil |
US3267859A (en) | 1964-02-18 | 1966-08-23 | Sakari T Jutila | Liquid dielectric pump |
US3361195A (en) | 1966-09-23 | 1968-01-02 | Westinghouse Electric Corp | Heat sink member for a semiconductor device |
US3554669A (en) | 1968-12-04 | 1971-01-12 | Gen Electric | Electric-fluid energy converter |
US3771219A (en) | 1970-02-05 | 1973-11-13 | Sharp Kk | Method for manufacturing semiconductor device |
US3635727A (en) * | 1970-02-24 | 1972-01-18 | Gen Foods Corp | Uniformly distributing ice crystals in a partially frozen coffee extract slush |
US3654988A (en) * | 1970-02-24 | 1972-04-11 | American Standard Inc | Freeze protection for outdoor cooler |
DE2102254B2 (en) * | 1971-01-19 | 1973-05-30 | Robert Bosch Gmbh, 7000 Stuttgart | COOLING DEVICE FOR POWER SEMICONDUCTOR COMPONENTS |
FR2216537B1 (en) * | 1973-02-06 | 1975-03-07 | Gaz De France | |
US3823572A (en) | 1973-08-15 | 1974-07-16 | American Air Filter Co | Freeze protection device in heat pump system |
US3923426A (en) | 1974-08-15 | 1975-12-02 | Alza Corp | Electroosmotic pump and fluid dispenser including same |
US4072188A (en) | 1975-07-02 | 1978-02-07 | Honeywell Information Systems Inc. | Fluid cooling systems for electronic systems |
DE2658720C3 (en) | 1976-12-24 | 1982-01-28 | Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn | Latent heat storage for holding a heat-storing medium |
US4138996A (en) * | 1977-07-28 | 1979-02-13 | Rheem Manufacturing Company | Solar heater freeze protection system |
US4312012A (en) * | 1977-11-25 | 1982-01-19 | International Business Machines Corp. | Nucleate boiling surface for increasing the heat transfer from a silicon device to a liquid coolant |
US4450472A (en) * | 1981-03-02 | 1984-05-22 | The Board Of Trustees Of The Leland Stanford Junior University | Method and means for improved heat removal in compact semiconductor integrated circuits and similar devices utilizing coolant chambers and microscopic channels |
US4573067A (en) * | 1981-03-02 | 1986-02-25 | The Board Of Trustees Of The Leland Stanford Junior University | Method and means for improved heat removal in compact semiconductor integrated circuits |
US4574876A (en) * | 1981-05-11 | 1986-03-11 | Extracorporeal Medical Specialties, Inc. | Container with tapered walls for heating or cooling fluids |
US4485429A (en) | 1982-06-09 | 1984-11-27 | Sperry Corporation | Apparatus for cooling integrated circuit chips |
US4494171A (en) * | 1982-08-24 | 1985-01-15 | Sundstrand Corporation | Impingement cooling apparatus for heat liberating device |
US4516632A (en) * | 1982-08-31 | 1985-05-14 | The United States Of America As Represented By The United States Deparment Of Energy | Microchannel crossflow fluid heat exchanger and method for its fabrication |
US4467861A (en) | 1982-10-04 | 1984-08-28 | Otdel Fiziko-Tekhnicheskikh Problem Energetiki Uralskogo Nauchnogo Tsentra Akademii Nauk Sssr | Heat-transporting device |
GB8323065D0 (en) | 1983-08-26 | 1983-09-28 | Rca Corp | Flux free photo-detector soldering |
US4567505A (en) * | 1983-10-27 | 1986-01-28 | The Board Of Trustees Of The Leland Stanford Junior University | Heat sink and method of attaching heat sink to a semiconductor integrated circuit and the like |
JPH0673364B2 (en) | 1983-10-28 | 1994-09-14 | 株式会社日立製作所 | Integrated circuit chip cooler |
US4561040A (en) | 1984-07-12 | 1985-12-24 | Ibm Corporation | Cooling system for VLSI circuit chips |
US4893174A (en) | 1985-07-08 | 1990-01-09 | Hitachi, Ltd. | High density integration of semiconductor circuit |
US4758926A (en) | 1986-03-31 | 1988-07-19 | Microelectronics And Computer Technology Corporation | Fluid-cooled integrated circuit package |
US4868712A (en) | 1987-02-04 | 1989-09-19 | Woodman John K | Three dimensional integrated circuit package |
US5072596A (en) * | 1987-02-06 | 1991-12-17 | Reaction Thermal Systems, Inc. | Ice building chilled water system and method |
US4903761A (en) * | 1987-06-03 | 1990-02-27 | Lockheed Missiles & Space Company, Inc. | Wick assembly for self-regulated fluid management in a pumped two-phase heat transfer system |
US5016138A (en) * | 1987-10-27 | 1991-05-14 | Woodman John K | Three dimensional integrated circuit package |
US4894709A (en) * | 1988-03-09 | 1990-01-16 | Massachusetts Institute Of Technology | Forced-convection, liquid-cooled, microchannel heat sinks |
US4896719A (en) * | 1988-05-11 | 1990-01-30 | Mcdonnell Douglas Corporation | Isothermal panel and plenum |
US4908112A (en) * | 1988-06-16 | 1990-03-13 | E. I. Du Pont De Nemours & Co. | Silicon semiconductor wafer for analyzing micronic biological samples |
US4866570A (en) | 1988-08-05 | 1989-09-12 | Ncr Corporation | Apparatus and method for cooling an electronic device |
US4938280A (en) | 1988-11-07 | 1990-07-03 | Clark William E | Liquid-cooled, flat plate heat exchanger |
CA2002213C (en) | 1988-11-10 | 1999-03-30 | Iwona Turlik | High performance integrated circuit chip package and method of making same |
US5145001A (en) | 1989-07-24 | 1992-09-08 | Creare Inc. | High heat flux compact heat exchanger having a permeable heat transfer element |
US5009760A (en) * | 1989-07-28 | 1991-04-23 | Board Of Trustees Of The Leland Stanford Junior University | System for measuring electrokinetic properties and for characterizing electrokinetic separations by monitoring current in electrophoresis |
CH681168A5 (en) | 1989-11-10 | 1993-01-29 | Westonbridge Int Ltd | Micro-pump for medicinal dosing |
US5083194A (en) * | 1990-01-16 | 1992-01-21 | Cray Research, Inc. | Air jet impingement on miniature pin-fin heat sinks for cooling electronic components |
US5179500A (en) * | 1990-02-27 | 1993-01-12 | Grumman Aerospace Corporation | Vapor chamber cooled electronic circuit card |
DE4006152A1 (en) | 1990-02-27 | 1991-08-29 | Fraunhofer Ges Forschung | MICROMINIATURIZED PUMP |
US6176962B1 (en) * | 1990-02-28 | 2001-01-23 | Aclara Biosciences, Inc. | Methods for fabricating enclosed microchannel structures |
US5858188A (en) * | 1990-02-28 | 1999-01-12 | Aclara Biosciences, Inc. | Acrylic microchannels and their use in electrophoretic applications |
US6054034A (en) * | 1990-02-28 | 2000-04-25 | Aclara Biosciences, Inc. | Acrylic microchannels and their use in electrophoretic applications |
US5070040A (en) | 1990-03-09 | 1991-12-03 | University Of Colorado Foundation, Inc. | Method and apparatus for semiconductor circuit chip cooling |
US5016090A (en) * | 1990-03-21 | 1991-05-14 | International Business Machines Corporation | Cross-hatch flow distribution and applications thereof |
US5096388A (en) * | 1990-03-22 | 1992-03-17 | The Charles Stark Draper Laboratory, Inc. | Microfabricated pump |
US5043797A (en) | 1990-04-03 | 1991-08-27 | General Electric Company | Cooling header connection for a thyristor stack |
US5265670A (en) | 1990-04-27 | 1993-11-30 | International Business Machines Corporation | Convection transfer system |
JPH07114250B2 (en) * | 1990-04-27 | 1995-12-06 | インターナショナル・ビジネス・マシーンズ・コーポレイション | Heat transfer system |
US5088005A (en) * | 1990-05-08 | 1992-02-11 | Sundstrand Corporation | Cold plate for cooling electronics |
US5161089A (en) | 1990-06-04 | 1992-11-03 | International Business Machines Corporation | Enhanced multichip module cooling with thermally optimized pistons and closely coupled convective cooling channels, and methods of manufacturing the same |
US5203401A (en) * | 1990-06-29 | 1993-04-20 | Digital Equipment Corporation | Wet micro-channel wafer chuck and cooling method |
US5057908A (en) | 1990-07-10 | 1991-10-15 | Iowa State University Research Foundation, Inc. | High power semiconductor device with integral heat sink |
US5420067A (en) | 1990-09-28 | 1995-05-30 | The United States Of America As Represented By The Secretary Of The Navy | Method of fabricatring sub-half-micron trenches and holes |
US5099910A (en) * | 1991-01-15 | 1992-03-31 | Massachusetts Institute Of Technology | Microchannel heat sink with alternating flow directions |
US5099311A (en) * | 1991-01-17 | 1992-03-24 | The United States Of America As Represented By The United States Department Of Energy | Microchannel heat sink assembly |
JPH06342990A (en) * | 1991-02-04 | 1994-12-13 | Internatl Business Mach Corp <Ibm> | Integrated cooling system |
US5131233A (en) | 1991-03-08 | 1992-07-21 | Cray Computer Corporation | Gas-liquid forced turbulence cooling |
US5232047A (en) | 1991-04-02 | 1993-08-03 | Microunity Systems Engineering, Inc. | Heat exchanger for solid-state electronic devices |
US5125451A (en) | 1991-04-02 | 1992-06-30 | Microunity Systems Engineering, Inc. | Heat exchanger for solid-state electronic devices |
US5263251A (en) | 1991-04-02 | 1993-11-23 | Microunity Systems Engineering | Method of fabricating a heat exchanger for solid-state electronic devices |
US5239200A (en) | 1991-08-21 | 1993-08-24 | International Business Machines Corporation | Apparatus for cooling integrated circuit chips |
US5228502A (en) | 1991-09-04 | 1993-07-20 | International Business Machines Corporation | Cooling by use of multiple parallel convective surfaces |
JP3161635B2 (en) | 1991-10-17 | 2001-04-25 | ソニー株式会社 | Ink jet print head and ink jet printer |
US5386143A (en) | 1991-10-25 | 1995-01-31 | Digital Equipment Corporation | High performance substrate, electronic package and integrated circuit cooling process |
JPH05217121A (en) | 1991-11-22 | 1993-08-27 | Internatl Business Mach Corp <Ibm> | Method and apparatus for coupling of thermo- sensitive element such as chip provided with magnetic converter, etc. |
US5218515A (en) | 1992-03-13 | 1993-06-08 | The United States Of America As Represented By The United States Department Of Energy | Microchannel cooling of face down bonded chips |
US5239443A (en) | 1992-04-23 | 1993-08-24 | International Business Machines Corporation | Blind hole cold plate cooling system |
US5317805A (en) | 1992-04-28 | 1994-06-07 | Minnesota Mining And Manufacturing Company | Method of making microchanneled heat exchangers utilizing sacrificial cores |
US5275237A (en) * | 1992-06-12 | 1994-01-04 | Micron Technology, Inc. | Liquid filled hot plate for precise temperature control |
US5308429A (en) * | 1992-09-29 | 1994-05-03 | Digital Equipment Corporation | System for bonding a heatsink to a semiconductor chip package |
DE4240082C1 (en) | 1992-11-28 | 1994-04-21 | Erno Raumfahrttechnik Gmbh | Heat pipe |
US5316077A (en) * | 1992-12-09 | 1994-05-31 | Eaton Corporation | Heat sink for electrical circuit components |
US5269372A (en) | 1992-12-21 | 1993-12-14 | International Business Machines Corporation | Intersecting flow network for a cold plate cooling system |
JP3477781B2 (en) * | 1993-03-23 | 2003-12-10 | セイコーエプソン株式会社 | IC card |
US5436793A (en) | 1993-03-31 | 1995-07-25 | Ncr Corporation | Apparatus for containing and cooling an integrated circuit device having a thermally insulative positioning member |
US5459352A (en) | 1993-03-31 | 1995-10-17 | Unisys Corporation | Integrated circuit package having a liquid metal-aluminum/copper joint |
US5427174A (en) | 1993-04-30 | 1995-06-27 | Heat Transfer Devices, Inc. | Method and apparatus for a self contained heat exchanger |
US5380956A (en) * | 1993-07-06 | 1995-01-10 | Sun Microsystems, Inc. | Multi-chip cooling module and method |
US5727618A (en) * | 1993-08-23 | 1998-03-17 | Sdl Inc | Modular microchannel heat exchanger |
US5704416A (en) * | 1993-09-10 | 1998-01-06 | Aavid Laboratories, Inc. | Two phase component cooler |
US5514906A (en) * | 1993-11-10 | 1996-05-07 | Fujitsu Limited | Apparatus for cooling semiconductor chips in multichip modules |
US5441613A (en) | 1993-12-03 | 1995-08-15 | Dionex Corporation | Methods and apparatus for real-time monitoring, measurement and control of electroosmotic flow |
US5534471A (en) | 1994-01-12 | 1996-07-09 | Air Products And Chemicals, Inc. | Ion transport membranes with catalyzed mixed conducting porous layer |
US5383340A (en) * | 1994-03-24 | 1995-01-24 | Aavid Laboratories, Inc. | Two-phase cooling system for laptop computers |
US5544696A (en) | 1994-07-01 | 1996-08-13 | The United States Of America As Represented By The Secretary Of The Air Force | Enhanced nucleate boiling heat transfer for electronic cooling and thermal energy transfer |
US5641400A (en) | 1994-10-19 | 1997-06-24 | Hewlett-Packard Company | Use of temperature control devices in miniaturized planar column devices and miniaturized total analysis systems |
US5508234A (en) * | 1994-10-31 | 1996-04-16 | International Business Machines Corporation | Microcavity structures, fabrication processes, and applications thereof |
JP3355824B2 (en) | 1994-11-04 | 2002-12-09 | 株式会社デンソー | Corrugated fin heat exchanger |
US5585069A (en) * | 1994-11-10 | 1996-12-17 | David Sarnoff Research Center, Inc. | Partitioned microelectronic and fluidic device array for clinical diagnostics and chemical synthesis |
US5632876A (en) * | 1995-06-06 | 1997-05-27 | David Sarnoff Research Center, Inc. | Apparatus and methods for controlling fluid flow in microchannels |
US5876655A (en) * | 1995-02-21 | 1999-03-02 | E. I. Du Pont De Nemours And Company | Method for eliminating flow wrinkles in compression molded panels |
US6227809B1 (en) * | 1995-03-09 | 2001-05-08 | University Of Washington | Method for making micropumps |
US5548605A (en) | 1995-05-15 | 1996-08-20 | The Regents Of The University Of California | Monolithic microchannel heatsink |
US5575929A (en) | 1995-06-05 | 1996-11-19 | The Regents Of The University Of California | Method for making circular tubular channels with two silicon wafers |
US5696405A (en) | 1995-10-13 | 1997-12-09 | Lucent Technologies Inc. | Microelectronic package with device cooling |
US5685966A (en) | 1995-10-20 | 1997-11-11 | The United States Of America As Represented By The Secretary Of The Navy | Bubble capture electrode configuration |
JP3029792B2 (en) * | 1995-12-28 | 2000-04-04 | 日本サーボ株式会社 | Multi-phase permanent magnet type rotating electric machine |
US6039114A (en) * | 1996-01-04 | 2000-03-21 | Daimler - Benz Aktiengesellschaft | Cooling body having lugs |
US6010316A (en) * | 1996-01-16 | 2000-01-04 | The Board Of Trustees Of The Leland Stanford Junior University | Acoustic micropump |
US5675473A (en) | 1996-02-23 | 1997-10-07 | Motorola, Inc. | Apparatus and method for shielding an electronic module from electromagnetic radiation |
US5885470A (en) * | 1997-04-14 | 1999-03-23 | Caliper Technologies Corporation | Controlled fluid transport in microfabricated polymeric substrates |
US5740013A (en) * | 1996-07-03 | 1998-04-14 | Hewlett-Packard Company | Electronic device enclosure having electromagnetic energy containment and heat removal characteristics |
US5692558A (en) | 1996-07-22 | 1997-12-02 | Northrop Grumman Corporation | Microchannel cooling using aviation fuels for airborne electronics |
US6167948B1 (en) * | 1996-11-18 | 2001-01-02 | Novel Concepts, Inc. | Thin, planar heat spreader |
US5870823A (en) * | 1996-11-27 | 1999-02-16 | International Business Machines Corporation | Method of forming a multilayer electronic packaging substrate with integral cooling channels |
KR100351531B1 (en) * | 1997-04-25 | 2002-09-11 | 캘리퍼 테크놀로지스 코포레이션 | Microfludic devices incorporating improved channel geometries |
US5880524A (en) * | 1997-05-05 | 1999-03-09 | Intel Corporation | Heat pipe lid for electronic packages |
US5901037A (en) * | 1997-06-18 | 1999-05-04 | Northrop Grumman Corporation | Closed loop liquid cooling for semiconductor RF amplifier modules |
US6013164A (en) * | 1997-06-25 | 2000-01-11 | Sandia Corporation | Electokinetic high pressure hydraulic system |
US6019882A (en) * | 1997-06-25 | 2000-02-01 | Sandia Corporation | Electrokinetic high pressure hydraulic system |
US6001231A (en) * | 1997-07-15 | 1999-12-14 | Caliper Technologies Corp. | Methods and systems for monitoring and controlling fluid flow rates in microfluidic systems |
US6034872A (en) * | 1997-07-16 | 2000-03-07 | International Business Machines Corporation | Cooling computer systems |
US6907921B2 (en) * | 1998-06-18 | 2005-06-21 | 3M Innovative Properties Company | Microchanneled active fluid heat exchanger |
US6012902A (en) * | 1997-09-25 | 2000-01-11 | Caliper Technologies Corp. | Micropump |
US5842787A (en) * | 1997-10-09 | 1998-12-01 | Caliper Technologies Corporation | Microfluidic systems incorporating varied channel dimensions |
US6174675B1 (en) * | 1997-11-25 | 2001-01-16 | Caliper Technologies Corp. | Electrical current for controlling fluid parameters in microchannels |
US6019165A (en) * | 1998-05-18 | 2000-02-01 | Batchelder; John Samuel | Heat exchange apparatus |
US6196307B1 (en) * | 1998-06-17 | 2001-03-06 | Intersil Americas Inc. | High performance heat exchanger and method |
US6032689A (en) * | 1998-10-30 | 2000-03-07 | Industrial Technology Research Institute | Integrated flow controller module |
US6553253B1 (en) * | 1999-03-12 | 2003-04-22 | Biophoretic Therapeutic Systems, Llc | Method and system for electrokinetic delivery of a substance |
US6388385B1 (en) * | 1999-03-19 | 2002-05-14 | Fei Company | Corrugated style anode element for ion pumps |
US6234240B1 (en) * | 1999-07-01 | 2001-05-22 | Kioan Cheon | Fanless cooling system for computer |
US6396706B1 (en) * | 1999-07-30 | 2002-05-28 | Credence Systems Corporation | Self-heating circuit board |
JP3518434B2 (en) * | 1999-08-11 | 2004-04-12 | 株式会社日立製作所 | Multi-chip module cooling system |
US6216343B1 (en) * | 1999-09-02 | 2001-04-17 | The United States Of America As Represented By The Secretary Of The Air Force | Method of making micro channel heat pipe having corrugated fin elements |
US6210986B1 (en) * | 1999-09-23 | 2001-04-03 | Sandia Corporation | Microfluidic channel fabrication method |
JP2001110956A (en) * | 1999-10-04 | 2001-04-20 | Matsushita Electric Ind Co Ltd | Cooling equipment for electronic component |
US6729383B1 (en) * | 1999-12-16 | 2004-05-04 | The United States Of America As Represented By The Secretary Of The Navy | Fluid-cooled heat sink with turbulence-enhancing support pins |
US6337794B1 (en) * | 2000-02-11 | 2002-01-08 | International Business Machines Corporation | Isothermal heat sink with tiered cooling channels |
US6366467B1 (en) * | 2000-03-31 | 2002-04-02 | Intel Corporation | Dual-socket interposer and method of fabrication therefor |
DE60140837D1 (en) * | 2000-04-19 | 2010-02-04 | Thermal Form & Function Inc | Cooling plate with cooling fins with a vaporizing coolant |
US6366462B1 (en) * | 2000-07-18 | 2002-04-02 | International Business Machines Corporation | Electronic module with integral refrigerant evaporator assembly and control system therefore |
US6416672B1 (en) * | 2000-08-25 | 2002-07-09 | The Regents Of The University Of California | Removal of dissolved and colloidal silica |
US6388317B1 (en) * | 2000-09-25 | 2002-05-14 | Lockheed Martin Corporation | Solid-state chip cooling by use of microchannel coolant flow |
US6537437B1 (en) * | 2000-11-13 | 2003-03-25 | Sandia Corporation | Surface-micromachined microfluidic devices |
US6367544B1 (en) * | 2000-11-21 | 2002-04-09 | Thermal Corp. | Thermal jacket for reducing condensation and method for making same |
US6336497B1 (en) * | 2000-11-24 | 2002-01-08 | Ching-Bin Lin | Self-recirculated heat dissipating means for cooling central processing unit |
CA2329408C (en) * | 2000-12-21 | 2007-12-04 | Long Manufacturing Ltd. | Finned plate heat exchanger |
US6519151B2 (en) * | 2001-06-27 | 2003-02-11 | International Business Machines Corporation | Conic-sectioned plate and jet nozzle assembly for use in cooling an electronic module, and methods of fabrication thereof |
US6825127B2 (en) * | 2001-07-24 | 2004-11-30 | Zarlink Semiconductor Inc. | Micro-fluidic devices |
US6533029B1 (en) * | 2001-09-04 | 2003-03-18 | Thermal Corp. | Non-inverted meniscus loop heat pipe/capillary pumped loop evaporator |
US6981543B2 (en) * | 2001-09-20 | 2006-01-03 | Intel Corporation | Modular capillary pumped loop cooling system |
US6942018B2 (en) * | 2001-09-28 | 2005-09-13 | The Board Of Trustees Of The Leland Stanford Junior University | Electroosmotic microchannel cooling system |
US6554669B1 (en) * | 2001-12-18 | 2003-04-29 | Stephen J. Motosko | Inflatable flotation device |
US6719535B2 (en) * | 2002-01-31 | 2004-04-13 | Eksigent Technologies, Llc | Variable potential electrokinetic device |
US6894899B2 (en) * | 2002-09-13 | 2005-05-17 | Hong Kong Cheung Tat Electrical Co. Ltd. | Integrated fluid cooling system for electronic components |
US6881039B2 (en) * | 2002-09-23 | 2005-04-19 | Cooligy, Inc. | Micro-fabricated electrokinetic pump |
US6889515B2 (en) * | 2002-11-12 | 2005-05-10 | Isothermal Systems Research, Inc. | Spray cooling system |
US7337832B2 (en) * | 2003-04-30 | 2008-03-04 | Valeo, Inc. | Heat exchanger |
-
2005
- 2005-02-01 US US11/049,202 patent/US7293423B2/en active Active
- 2005-05-12 JP JP2007515166A patent/JP2008503071A/en active Pending
- 2005-05-12 WO PCT/US2005/016883 patent/WO2005120238A2/en active Application Filing
- 2005-05-12 DE DE112005001254T patent/DE112005001254T5/en not_active Withdrawn
- 2005-05-16 TW TW094115839A patent/TWI338115B/en active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4474172A (en) * | 1982-10-25 | 1984-10-02 | Chevron Research Company | Solar water heating panel |
Also Published As
Publication number | Publication date |
---|---|
US7293423B2 (en) | 2007-11-13 |
TWI338115B (en) | 2011-03-01 |
JP2008503071A (en) | 2008-01-31 |
DE112005001254T5 (en) | 2007-08-23 |
WO2005120238A3 (en) | 2007-05-24 |
US20050268626A1 (en) | 2005-12-08 |
TW200540381A (en) | 2005-12-16 |
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