With Cold Plate Or Heat Sink Patents (Class 361/702)
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Patent number: 7016196Abstract: A heat dissipating structure for a heat generating electronic component is characterized by comprising a heat dissipating sheet including a metal sheet and a heat conductive member having adhesion stacked thereon between the heat generating electronic component and a heat dissipating member, wherein the metal sheet is connected to the heat generating electronic component, and the heat conductive member having adhesion is connected to the heat dissipating member.Type: GrantFiled: March 20, 2002Date of Patent: March 21, 2006Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kazuhiko Tomaru, Kunihiko Mita, Tsutomu Yoneyama
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Patent number: 7011143Abstract: A modular fluid unit for cooling heat sources located on a rack, the modular fluid unit comprising: a heat exchanger in fluid communication a pump; and wherein the modular fluid unit is mountable within the rack and is configurable to be in fluid communication with a cold plate return manifold, a cold plate supply manifold, and an end-user fluid supply. A method for cooling electronic components in a rack, the method comprising: circulating a first liquid from a cold plate to one of a plurality of heat exchangers mounted within the rack; circulating a second liquid from a second liquid supply to the one of a plurality of heat exchangers; and transferring heat from the first liquid to the second liquid at the one of a plurality of heat exchangers.Type: GrantFiled: May 4, 2004Date of Patent: March 14, 2006Assignee: International Business Machines CorporationInventors: Joseph P. Corrado, John F. Eberth, Steven J. Mazzuca, Roger R. Schmidt, Takeshi Tsukamoto
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Patent number: 6992892Abstract: A substrate holder for supporting a substrate, including an exterior supporting surface, a cooling component, a heating component positioned adjacent to the supporting surface and between the supporting surface and the cooling component, and a contact volume positioned between the heating component and the cooling component, and formed by a first internal surface and a second internal surface. The thermal conductivity between the heating component and the cooling component is increased when the contact volume is provided with a fluid.Type: GrantFiled: September 26, 2003Date of Patent: January 31, 2006Assignee: Tokyo Electron LimitedInventors: Paul Moroz, Thomas Hamelin
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Patent number: 6989989Abstract: A power conversion system which uses a plurality of transistors to convert DC power to AC power is made more efficient by the use of liquid refrigerant to cool the transistors. A plurality of passages are formed in a cold plate on which the transistors are mounted, and liquid refrigerant is flashed into the passages to cool the cold plate and the transistors. The liquid refrigerant can by derived from a condenser from an organic rankine cycle or a vapor compression cycle.Type: GrantFiled: June 17, 2003Date of Patent: January 24, 2006Assignee: UTC Power LLCInventors: Joost J. Brasz, Bruce P. Biederman
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Patent number: 6987672Abstract: An engageable assembly comprising a socket and a heat sink. The socket comprises a surface having an array of mounting holes that receive connector pins of an electronic device in order to mount the electronic device within the perimeter of the socket. The heat sink has a footprint extending beyond the perimeter of the socket and is in thermal contact with the electronic device when it is engaged with the socket. The socket and the heat sink include cooperative alignment tabs and alignment slots located outside the array of mounting holes. A locking lever is pivotally connected to an arm extending from the socket to a position outside of the footprint of the heat sink.Type: GrantFiled: December 1, 2004Date of Patent: January 17, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: John P. Franz, Wade David Vinson
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Patent number: 6982866Abstract: In one embodiment, the invention provides an enclosure for a mobile computing system. The enclosure comprises a hollow body shaped and dimensioned to house a processing module, and a display module for a tablet personal computer, wherein the hollow body is defined by a top panel, a bottom panel, and a peripheral side panel, wherein the top and bottom panels are fabricated to have zones of increased, and reduced thicknesses which correspond to areas of the processing module have produced, and greater height, respectively.Type: GrantFiled: February 14, 2003Date of Patent: January 3, 2006Assignee: Intel CorporationInventor: Prosenjit Ghosh
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Patent number: 6967842Abstract: An electronic device capable of efficiently cooling an integrated circuit element provided in such a way as to enable a heat exchange on a cold plate. The electronic device contains a circuit board mounted with an integrated circuit element requiring measures against heat generation in a single case, comprising: a cold plate mounted on the integrated circuit element in such a way as to enable a heat transfer from the integrated circuit element; a heat exchanger for cooling brine heated by the cold plate by circulating the brine; a fan casing forming an air way from a blower fan at an opening on a surface of the case to the heat exchanger; a reserve tank and a pump provided in order in a brine flow from the heat exchanger to the cold plate; and a linear brine passage formed in the cold plate and having at least one pair of back and forth channels.Type: GrantFiled: August 29, 2003Date of Patent: November 22, 2005Assignee: Sanyo Electric Co., Ltd.Inventors: Hitoshi Aoki, Junichi Kubota, Takeo Komatsubara, Junichi Motegi, Hirotaka Kakinuma, Naoki Otsuka, Masaya Matsuoka
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Patent number: 6967845Abstract: An integrated heat dissipating device has a heat sink, a first set of fins, a second set of fins and at least one heat pipe. The heat sink has a thermal conductive block embedded therein and a through hole exposing the thermal conductive block from a top surface of the heat sink. The first set of fins has a plurality of horizontally extending fins stacked with each other along a vertical direction over the heat sink. The second set of fins is integrated by a plurality of vertically extending fins arranged in a curved shape between the heat sink and the first set of fins. The heat pipe has a vertical extension across the first set of fins and a horizontal extension underneath a bottom of the first set of fins. The horizontal extension is inserted into the through hole in contact with the thermal conductive block.Type: GrantFiled: November 5, 2003Date of Patent: November 22, 2005Assignee: Cpumate Inc.Inventors: Tsai Liang Chiang, Takashi Wu
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Patent number: 6961244Abstract: A switching power supply includes a switching circuit, a main transformer, a rectifier circuit, and an output smoothing circuit, which are mounted on a base plate. Voltage transformation of an inputted direct current voltage is performed through collaboration among the above. A pedestal portion is formed on the base plate, and a channel to cool down electronic parts such as a diode is formed inside the pedestal portion. Since the channel is thus formed inside the pedestal portion, the device will not be larger-sized even when the channel is formed. Moreover, at least any of a switching element and a diode is mounted on the pedestal portion, and a choke coil is mounted in a region other than a region where the pedestal portion is formed. Therefore, even with the pedestal portion, it is significantly suppressed for the device to be larger-sized.Type: GrantFiled: March 11, 2004Date of Patent: November 1, 2005Assignee: TDK CorporationInventors: Takahiro Tsuchiya, Ryoji Sunami
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Patent number: 6958915Abstract: A heat dissipating device includes a retention module (20) around an electronic component (15), a heat sink (30) attached to the retention module, and a fan (90). The heat sink includes a plurality of fins (62, 64, 66, 68) and spacers (52) interleaved between the fins, two heat pipes (80) sequentially extending through lower portions of the fins, the spacers and upper portions of the fins to bond the fins and the spacers together. Each spacer includes a flat bottom face for contacting the electronic component, and an arcuate top face. The fins includes two outer fins, and a plurality of inner fins each defining a cutout (62a, 64a) cooperatively defining a chamber between the outer fins. The chamber and the arcuate spacers facilitate cooling air from the fan to blow to opposite sides of the heat sink thereby improving heat dissipation efficiency of the heat sink.Type: GrantFiled: October 7, 2003Date of Patent: October 25, 2005Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Yaxiong Wang, Chung-Yuan Huang, Shun Chi Dong
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Patent number: 6953227Abstract: A cooling system is presented. The system includes a cooling circuit and at least one electronic component coupled to a surface. One or more heat dissipation structures are in thermal contact with the at least one electronic component. At least one sliding seal mechanism is coupled to the cooling circuit and the one or more heat dissipation structures so as to provide fluid communication between the cooling circuit and the one or more heat dissipation structures. The cooling circuit may include a tank that has a volumetric center and that is capable of holding a maximum volume of fluid. Fluid enters the tank through a tank input and exits the tank through a tank output. The tank output has a port through which fluid from the tank enters the tank output. The tank is capable of being filled with a fluid volume that is less than the maximum volume of fluid, such that the port remains immersed in fluid irrespective of tank orientation.Type: GrantFiled: December 5, 2002Date of Patent: October 11, 2005Assignee: Sun Microsystems, Inc.Inventors: John Dunn, Shlomo Novotny, Marlin Vogel
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Patent number: 6930884Abstract: Disclosed is land grid array (LGA) assembly using a compressive load. An LGA assembly includes a first component located on the top of the LGA assembly; a center load screw coupled to the first component; and a second component, wherein the center load screw is received on the second component upon turning the center load screw in a first direction. Further turning of the center load screw in the first direction after the center load screw is received on the second component, operates the first component to apply a compressive load within the LGA assembly.Type: GrantFiled: June 11, 2003Date of Patent: August 16, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Stephen D. Cromwell, Thomas J. Augustin
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Patent number: 6914783Abstract: A projection device is provided, wherein the projection device includes a digital micromirror device, a circuit board that further includes a first face and a second face, an integrated heat sink/stiffener; and a plurality of engagement mechanisms, wherein the plurality of engagement mechanisms is adapted to operatively couple the digital micromirror device to the first face of the circuit board and to secure the integrated heat sink/stiffener to the second face of the circuit board; and wherein the integrated heat sink/stiffener is adapted to provide structural support to the circuit board and to draw thermal energy away from the digital micromirror device.Type: GrantFiled: June 2, 2004Date of Patent: July 5, 2005Assignee: InFocus CorporationInventors: Tony Rogers, Clark Wilson, Gary Cook
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Patent number: 6909607Abstract: A thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. Power electronic circuits are thermally matched, such as between component layers and between the circuits and the support. The support may form a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.Type: GrantFiled: December 18, 2002Date of Patent: June 21, 2005Assignee: Rockwell Automation Technologies, Inc.Inventors: Lawrence D. Radosevich, Daniel G. Kannenberg, Steven C. Kaishian, Bruce C. Beihoff
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Patent number: 6890799Abstract: According to the invention, a sealing top plate in a multi-chip module is formed from a ceramic with high thermal conductivity having a thermal expansion coefficient consistent with that of a multi-layer circuit substrate. A cooling flow path cover covering the entirety of cooling flow path grooves is formed as a separate metallic member. The back surface of the sealing top plate, on which are formed the cooling flow path grooves, is bonded directly to the back surface of a semiconductor device using solder. A thermal-conductive jacket with low thermal resistance is provided. A multi-chip module sealing frame is soldered to the edge of the sealing top plate. Furthermore, a sealing material such as an O-ring is simply interposed between the edge of the sealing top plate and the cooling water path cover, and tightening means is used to tighten the metallic cooling flow path cover and the multi-chip module sealing frame to each other.Type: GrantFiled: January 7, 2003Date of Patent: May 10, 2005Assignee: Hitachi, Ltd.Inventors: Takahiro Daikoku, Kenichi Kasai, Toshitada Netsu, Koichi Koyano, Takayuki Uda
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Patent number: 6882533Abstract: A modular semiconductor chip cooling system having a readily openable enclosure defining a chamber configured to hold a printed circuit board carrying components to be cooled. The enclosure can include a reservoir, a condenser and a pump. Sprayers within the chamber are adjustably mounted on one or more brackets to allow each sprayer to be set for the individual height of its respective component. The enclosure can be readily removed from a computer system through a quick release connection. The computer system can include a condenser and pump to operate all its modular cooling systems, removing the condensing function from the individual modules.Type: GrantFiled: December 14, 2001Date of Patent: April 19, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Cullen E. Bash, Chandrakant D. Patel, Glenn C. Simon
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Patent number: 6876551Abstract: A heat sink assembly includes a heat sink (30), a processing unit (70), a socket (40) and a clip (1). The processing unit is mounted on the socket. Two catches (42) are provided at opposite sides of the socket. The clip includes a operating member (10) and a pressing member (20). The operating member includes a main body (14) and a handle (12). Two resilient portions (142) are formed from opposite sides of the main body. A first latching leg (146) with a fixing hole (144) extends downwardly from the main body. The pressing member includes two opposite pressing portions (24), and opposite first and second beams (22,26). A second latching leg (224) with a fixing hole (222) extends downwardly from the first beam. Two cutouts (262) are defined at a side of the pressing member, the resilient portions snappingly engaging with the pressing member in the cutouts.Type: GrantFiled: September 17, 2003Date of Patent: April 5, 2005Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Hsieh Kun Lee, Wellint Xia, Gen-Cai Wang
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Patent number: 6853554Abstract: A modular semiconductor chip cooling system having a readily openable enclosure defining a chamber configured to hold a printed circuit board carrying components to be cooled. The enclosure can include a reservoir, a condenser and a pump. Sprayers within the chamber are adjustably mounted on one or more brackets to allow each sprayer to be set for the individual height of its respective component. The enclosure can be readily removed from a computer system through a quick release connection. The computer system can include a condenser and pump to operate all its modular cooling systems, removing the condensing function from the individual modules.Type: GrantFiled: December 14, 2001Date of Patent: February 8, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Cullen E. Bash, Chandrakant D. Patel, Glenn C. Simon
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Patent number: 6849940Abstract: An integrated circuit package includes a first or active substrate and a second or passive substrate. The active substrate includes at least one circuit that generates heat during circuit operation. The passive substrate does not include any heat-generating circuits, although the passive substrate may include passive, disabled or dormant circuitry. The two substrates are preferably fabricated of semiconductor material and have substantially equal coefficients of thermal expansion. The passive substrate is thermally coupled to the active substrate preferably using a thin layer of adhesive, such as an epoxy. The passive substrate serves to thermally conduct the heat generated by the circuits of the active substrate away from the active substrate. An internal metallic heat sink may be optionally thermally coupled to the passive substrate to further aid in the transfer of heat away from the active substrate.Type: GrantFiled: November 20, 2000Date of Patent: February 1, 2005Assignee: ATI Technologies, Inc.Inventors: Vincent K. Chan, Samuel W. Ho
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Patent number: 6842342Abstract: A heat sink includes a strip, two flanges extending from a side of the strip, at least one slot defined in the strip near each of the flanges, at least one tongue projecting from an internal side of each of the flanges and at least one lug projecting an edge of each of the flanges and defining an aperture. The lugs can be inserted through the slots of another heat sink so that the apertures thereof can receive the tongues of the other heat sink.Type: GrantFiled: September 12, 2003Date of Patent: January 11, 2005Assignee: Leohab Enterprise Co., Ltd.Inventor: Chao-Chi Lin
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Patent number: 6839232Abstract: In a heat dissipating internally fan-less housing (20) for electronic circuits and components (28), the housing has an assembly of two container (10) parts comprising heat-sink fins (12). Each part has a substantially diagonal (14) shaped profile. In the housing, a circuit-board (29) is mounted along the diagonal (14) profile thus providing that the long-side ends of the circuit-board (29) on each side of the board are covered by a greater mass of heat-sink fins (12) compared to a horizontally mounted circuit board for a better cooling of components.Type: GrantFiled: March 10, 2003Date of Patent: January 4, 2005Assignee: PacketFront Sweden ABInventors: Anders Elo, Jörgen Eriksson, Niclas Sonesson
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Publication number: 20040264137Abstract: A thermal management device includes a thermally conductive core, a thermally conductive frame positioned around the core, the frame defining at least one opening, and at least one thermally conductive insert disposed in the opening in the frame.Type: ApplicationFiled: June 26, 2003Publication date: December 30, 2004Inventors: Mark A. Trautman, George Daskalakis
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Patent number: 6829146Abstract: An assembly comprising a circuit board, a socket, and an electronic device. The socket is connected to the circuit board and comprises a surface having a plurality of receptacles into which are disposed a plurality of connector pins from the electronic device. A heat sink is in thermal contact with the electronic device and has a footprint extending beyond both the electronic device and the socket. A locking lever pivotally connects to an arm extending from the socket to a position outside of the footprint of the heat sink.Type: GrantFiled: March 22, 2004Date of Patent: December 7, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: John P. Franz, Wade David Vinson
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Patent number: 6826052Abstract: A heat sink retaining assembly includes a retaining module (1) and a pair of clips (3). Two retaining portions (12) are respectively formed on each of two opposite sidewalls (17′) of the retaining module. Bifurcated block portions (13) are integrally formed on interior faces of each of four sidewalls (17, 17′) of the retaining module. A gap (15) is defined between each block portion and its corresponding sidewall, and each gap receives a resilient member (14). Each resilient member includes a guide portion (19) and a pressing portion (18). A heat sink (2) is received in the retaining module via the guide portions. The heat sink is restricted by the pressing portions from sliding in lateral directions relative to the retaining module. The clips are engaged with the retaining portions. The heat sink is thereby securely fastened to the retaining module and to an associated CPU package.Type: GrantFiled: February 26, 2003Date of Patent: November 30, 2004Assignee: Hon Hai Precision Ind. Co., Ltd.Inventor: Hao-Yun Ma
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Publication number: 20040228094Abstract: A dual power module architecture employing a high degree of modularity, that allows a base power module to be quickly, easily, and cost effectively configured to address a large variety of applications.Type: ApplicationFiled: August 14, 2003Publication date: November 18, 2004Applicant: Ballard Power Systems CorporationInventors: Sayeed Ahmed, Fred Flett, Ajay V. Patwardhan, Douglas K. Maly
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Publication number: 20040221604Abstract: A rack-mount server system of a liquid cooling system, in which a heat-generating component such as a CPU is cooled by a coolant has a plurality of server modules with heat-generating components which are cooled by the circulating coolant. The server modules are connected in parallel to a circulation coolant path through which the coolant to cool the server modules is circulated. In the middle of the coolant circulation path is a cooling unit that cools the coolant by radiating its heat to the outside air. Furthermore, a bypass route parallel to the server modules and going around the server modules is provided in the coolant circulation path, and the circulation quantity of the coolant is controlled in the bypass route. Alternatively, the flow quantity of the coolant is controlled in each of the server modules.Type: ApplicationFiled: February 12, 2004Publication date: November 11, 2004Inventors: Shigemi Ota, Shinji Matsushita
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Patent number: 6816375Abstract: A new heat sink apparatus and method that simplify the assembly of the heat sink and thermal stud. The new heat sink assembly uses a spring retainer that, in most cases, can use existing socket mounting screws. A spring clip presses a thermal stud against the back of an electrical device package. The present invention is especially useful for attaching a spatial light modulator to a printed circuit board since it provides a simple, reliable heat sink without blocking the light path to and from the device.Type: GrantFiled: August 1, 2002Date of Patent: November 9, 2004Assignee: Texas Instruments IncorporatedInventor: Satyan Kalyandurg
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Patent number: 6813153Abstract: A polymer solder hybrid (PSH) thermal interface material (TIM). The PSH TIM includes a solder with a low melt temperature and a filler with a high melt temperature. Upon initiation of reflow, the filler diffuses into the solder to form a new filler-solder alloy having an increased melting point and added robustness.Type: GrantFiled: September 18, 2002Date of Patent: November 2, 2004Assignee: Intel CorporationInventors: Paul A. Koning, Fay Hua
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Patent number: 6809928Abstract: According to some embodiments, a cooling system that may be installed in a computer chassis has a fluid-containing space that is sealed and pressurized by an inert gas. The fluid-containing space may be formed from a cold plate that may serve as a heat sink for an integrated circuit, a heat exchanger, tubing, and a pump volume. A coolant may be contained in the fluid-containing space.Type: GrantFiled: December 27, 2002Date of Patent: October 26, 2004Assignee: Intel CorporationInventors: Paul J. Gwin, Rolf A. Konstad, Peter A. Davison, Mark A. Trautman
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Patent number: 6809411Abstract: In order to obtain a minimal leakage inductance in a semiconductor component, it is necessary to provide at least two adjacent switching elements whose load current connection elements which are adjacent on one housing side to have different polarities. A multiplicity of even-numbered switching elements are advantageously disposed next to one another on an alignment line. The leads between the load current connection elements and the load current connections of the switching elements that are disposed next to one another advantageously run approximately orthogonally with respect to the alignment line. The assigned load current connection elements then alternately have the first and the second supply potential and this minimizes the leakage inductance.Type: GrantFiled: December 17, 2001Date of Patent: October 26, 2004Assignee: EUPEC Europaeische Gesellschaft fuer Leitungshalbleiter mbHInventor: Martin Hierholzer
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Patent number: 6808013Abstract: A heat dissipation device (1) includes a heat sink (12), a number of first pipes (14), a pair of second pipes (16), and working liquid. The heat sink includes a base (122), and a number of fins (124) attached on the base. A number of parallel first holes (126) is defined through the base. A second hole (128) is defined through a middle of the base in a longitudinal direction that is perpendicular to the first holes. The first and second pipes and the first and second holes thus cooperatively form a closed circulatory route. The working liquid is received in the circulatory route. In operations the working liquid absorbs heat at the base and circulates through the circulatory route. The first and second pipes dissipate said heat to airspace beyond the fins. Accordingly, the first and second pipes increase a heat dissipation area of the heat dissipation device.Type: GrantFiled: June 18, 2002Date of Patent: October 26, 2004Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Cheng-Tien Lai, Tsung-Lung Lee, Shenghua Wang
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Patent number: 6804275Abstract: A semiconductor laser stack apparatus 1 comprises three semiconductor lasers 2a to 2c, two copper plates 3a and 3b, two lead plates 4a and 4b, a supply tube 5, a discharge tube 6, four insulating members 7a to 7d, and three heat sinks 10a to 10c. Here, the heat sink 10a to 10c is formed by a lower planar member 12 having an upper face formed with a supply water path groove portion 22, an intermediate planar member 14 formed with a plurality of water guiding holes 38, and an upper planar member 16 having a lower face formed with a discharge water path groove portion 30 which are successively stacked one upon another, whereas their contact surfaces are joined together.Type: GrantFiled: February 2, 2001Date of Patent: October 12, 2004Assignee: Hamamatsu Photonics K.K.Inventors: Hirofumi Miyajima, Hirofumi Kan
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Patent number: 6801433Abstract: An apparatus for cooling electrical protective devices comprises an electrical protective device mounted to at least one electrical terminal, wherein the electrical terminals are cooled to indirectly cool the electrical protective devices. A pressurized coolant source passes a coolant fluid through coolant passages attached to the electrical terminals, thereby cooling the electrical terminals. The cooled electrical terminals maintain the temperature of the electrical protection device within an appropriate operating temperature range. This cooling method may be used to increase the fuse power rating of a fuse array while maintaining electrical coordination between the fuses in the fuse array and electrical devices protected by the fuse array.Type: GrantFiled: January 9, 2002Date of Patent: October 5, 2004Assignee: General Electric CompanyInventors: Brian Eric Lindholm, Paul Stephen Pate, Allen Michael Ritter
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Patent number: 6798663Abstract: A system for heat sink hold-down is provided. The system comprises a heat source; and a heat sink hold-down assembly. The assembly comprises a bolster plate to rigidly support the heat source and a heat sink. The heat sink comprises a heat sink base operable to transfer heat and to press the heat source against the bolster plate, and a longitudinal post having a first end attached substantially orthogonally near the center of said heat sink base. The post is operable to transfer a compressive force substantially symmetrically to the heat sink base. The assembly further comprises a lever spring contacting the second end of the post. The lever spring is operable to apply a compressive force to the post in response to a bending moment. The assembly further comprises a cap rigidly coupled to the bolster plate and operable to apply a bending moment to the lever spring.Type: GrantFiled: April 21, 2003Date of Patent: September 28, 2004Assignee: Hewlett Packard Development Company, L.P.Inventor: Brandon A. Rubenstein
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Patent number: 6781839Abstract: A high density vertical surface mount package and thermal carrier therefore including a heat sink.Type: GrantFiled: June 9, 2003Date of Patent: August 24, 2004Assignee: Micron Technology, Inc.Inventors: Larry D. Kinsman, Jerry M. Brooks, Walter L. Moden
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Patent number: 6781837Abstract: A heat sink retention system and method secures a heat sink proximate to a packaged electronic component, such as central processing unit, by rotationally engaging the heat sink with a retaining structure secured to an information handling system planar, such as a motherboard. The retaining structure has an opening aligned with the packaged electronic component and securing lips that extend into the opening. The heat sink inserts into the opening and is rotated slightly to engage flanges extending from its base into the securing lips. The position of the securing lips relative to the planar and the thickness of the flanges results in the base of the secured heat sink having a predetermined clearance from the packaged electronic component. A locking detent biases the heat sink to contact the packaged electronic component and allows limited movement out to the predetermined clearance, thus allowing the absorption of shock without excessive heat sink movement.Type: GrantFiled: December 6, 2002Date of Patent: August 24, 2004Assignee: Dell Products L.P.Inventors: Tracey Kannmacher, Ralph W. Jensen, Joshua M. Boggs, Shannon Bynum
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Patent number: 6778397Abstract: Heat dissipater for integrated circuits comprising a dispersion element able to be associated to an integrated circuit, through securing means constituted by two locking elements mounted on the dispersion element in mutually opposite positions. The locking elements have each a latching pin and are able to slide laterally to the dispersion element from a lower position in which the pins are inferiorly distanced from the base and form between them a passage for the coupling of the dissipater on an integrated circuit, to an upper position in which the pins are proximate to the base and are mutually approached. The dissipater further comprises elastic means interposed between the dispersion element and the locking elements to thrust them towards the upper position.Type: GrantFiled: February 27, 2003Date of Patent: August 17, 2004Assignee: Spark Electronic S.r.l.Inventor: Marco Segala
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Patent number: 6776221Abstract: A computer system is described of the kind having a frame and a plurality of server unit subassemblies that are insertable into the frame. Each server unit subassembly has a chassis component which engages with a frame component on the frame. Heat can transfer from the chassis component to the frame component, but the server unit subassembly can still be moved out of the frame. In one embodiment, an air duct is located over a plurality of the frame components. Heat transfers from the frame components to air flowing through the duct. A modified capillary pumped loop is used to transfer heat from a processor of the server unit subassembly to thermal components on the frame.Type: GrantFiled: January 4, 2002Date of Patent: August 17, 2004Assignee: Intel CorporationInventors: Stephen W. Montgomery, Barrett M. Faneuf
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Patent number: 6775138Abstract: A heat sink clip (10) is shaped from a single piece of metal wire. Opposite ends of the metal wire are bent to form a generally twin strand structure that is the clip. The clip includes a central pressing portion (12), two resilient connecting portions (18) extending outwardly and upwardly from the pressing portion, and two arms (14) depending from distal ends of the connecting portions. The pressing portion has four contact points at a bottom thereof, for pressing a heat sink (20) onto a CPU (30). A pair of hooks (16, 16′) is inwardly formed from distal ends of the arms respectively, for engaging with a pair of retaining ears (42) at opposite sides of a CPU socket (40). The contact points of the pressing portion enable the heat sink to be securely fastened to the CPU mounted on the CPU socket.Type: GrantFiled: December 9, 2002Date of Patent: August 10, 2004Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Hsieh Kun Lee, Wellint Xia, Toly Lee
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Patent number: 6771503Abstract: The port for a removable module of a set-top box in a cable television system incorporates guide members of a thermally conductive material to provide a new primary heat dissipation path to manage thermal energy generated by operation of the module. The guide members may also be used to guide the module into proper connection with a module connector which electrically connects the circuit on the module with the circuitry of the set-top box. The guide members may be attached to the chassis of the set-top box or integrally formed in the chassis. Thus, heat from the module is provide directly to the chassis of the set-top box from which it is released by convention into the ambient environment.Type: GrantFiled: July 26, 2002Date of Patent: August 3, 2004Assignee: General Instrument CorporationInventors: Steven Kimball, Shiomo Ovadia, William J. Storti, Keith Sibley, Barry Falvo, Charles Herrmann
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Patent number: 6760221Abstract: An integrated cooling unit configured to effect the removal of heat via a circulating liquid coolant includes a reservoir to contain the liquid coolant, a tubing arrangement disposed at an outer surface of the reservoir, a pump disposed within the reservoir, and a fan configured to provide a flow of air across the tubing arrangement to remove the heat. The tubing arrangement is fluidly communicable with a heat exchanging device, and the pump is configured to circulate the liquid coolant through the tubing arrangement to the heat exchanging device.Type: GrantFiled: October 23, 2002Date of Patent: July 6, 2004Assignee: International Business Machines CorporationInventors: Gary F. Goth, Jody A. Hickey, Daniel J. Kearney, John J. Loparco, William D. McClafferty, Donald W. Porter
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Patent number: 6757968Abstract: A circuit assembly has a heat sink assembly and a chip scale package assembly. The chip scale package assembly has an integrated circuit die coupled to a first printed wiring board. The heat sink assembly has an integrated circuit die coupled to a second printed wiring board. Preferably, the heat sink assembly and the chip scale package assembly are assembled separately then assembled together. The circuit pads on the first printed wiring board correspond with circuit pads on the second printed wiring board. The circuit pads may be coupled together by solder or adhesive bonding. The circuit pads on the first printed wiring board may have solder balls formed of high temperature solder that do not melt when the heat sink assembly is assembled with chip scale package assembly. The solder balls allow chip scale package assembly to maintain a predetermined distance from the circuit pads on the second printed wiring board.Type: GrantFiled: August 30, 2002Date of Patent: July 6, 2004Assignee: The Boeing CompanyInventors: Ching P. Lo, Daniel A. Huang, Pete Hudson
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Publication number: 20040125561Abstract: According to some embodiments, a cooling system that may be installed in a computer chassis has a fluid-containing space that is sealed and pressurized by an inert gas. The fluid-containing space may be formed from a cold plate that may serve as a heat sink for an integrated circuit, a heat exchanger, tubing, and a pump volume. A coolant may be contained in the fluid-containing space.Type: ApplicationFiled: December 27, 2002Publication date: July 1, 2004Inventors: Paul J. Gwin, Rolf A. Konstad, Peter A. Davison, Mark A. Trautman
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Patent number: 6756661Abstract: A memory TCP loaded with four chips (1-bank 16-bit type) is constructed by a tape of one two-layer wiring layer structure, four chips mounted to this tape, etc. Common signal terminals are arranged on one set of two opposed sides, and an independent signal terminal is arranged on another side. The common signal terminals on the two sides are electrically connected to each other common signal wiring. Further, in a DIMM in which this memory TCP is mounted to front and rear sides of a substrate, plural external terminals are formed on one long side of the rectangular substrate, and the memory TCP is mounted such that the independent signal terminal of the memory TCP is arranged along an arranging direction of these external terminals.Type: GrantFiled: March 8, 2001Date of Patent: June 29, 2004Assignees: Hitachi, Ltd., Hitachi Tohbu Semiconductor, Ltd.Inventors: Kensuke Tsuneda, Toshio Sugano, Seiichiro Tsukui, Kouji Nagaoka, Tomohiko Sato
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Patent number: 6754076Abstract: Electronic system components are cooled using a field configurable pump comprising a selectable plurality of identical or nearly identical modular pump units. The pump units are disposed in a stacked arrangement and are fluidly connected to adjacent modular pump units via a removable coupling, preferably one of the quick-disconnect variety. Each modular pump unit comprises a housing, an impeller and a sealing mechanism. When disposed in a stack the combined pump structure is driven by a single motor. In this fashion, pump structures may be employed which are adaptable to heat flux demands imposed by the electronic components.Type: GrantFiled: October 30, 2002Date of Patent: June 22, 2004Assignee: International Business Machines CorporationInventors: William E. Cox, Roger R. Schmidt
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Publication number: 20040100772Abstract: Various aspects of the invention provide microelectronic component assemblies, memory modules, computer systems, and methods of assembling microelectronic component assemblies. In one particular implementation, a microelectronic component assembly includes a non-leaded first package, a second package, and a plurality of electrical junctions. The first package has a confronting surface that includes an exposed back surface of a microelectronic component and exposed contact surfaces. The second package has a confronting surface that includes an exposed back surface of a microelectronic component and exposed contact surfaces of a number of leads. Each of the junctions couples one of the contacts to the contact surface of one of the leads. The electrical junctions may also physically support the packages with their respective confronting surfaces juxtaposed with but spaced from one another, defining a peripherally open fluid passage and enhancing thermal performance.Type: ApplicationFiled: December 18, 2002Publication date: May 27, 2004Inventors: Lim Thiam Chye, Setho Sing Fee, Eric Tan Swee Seng
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Patent number: 6741470Abstract: A reusable thermal solution attachment system that provides a quick and easy method for securing and removing a thermal solution from a circuit board without the use of tape, adhesives or fasteners. In one embodiment, the system includes two plates and a set of locking pins to secure the circuit board between the plates. The resulting mechanism is easy to attach and remove during testing operations or can be permanently installed in desktop environments.Type: GrantFiled: June 1, 2001Date of Patent: May 25, 2004Assignee: Intel CorporationInventor: Thomas A. Isenburg
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Patent number: 6734371Abstract: An anchoring mechanism and method are provided for securing a component to a printed circuit board. The anchoring mechanism may include a loop, a first leg extending from the loop, and a second leg extending from the loop. The first leg may mount through a first hole of the printed circuit board and include a compressible section to compress when inserted into the first hole and to expand after passing through the first hole. The compressible section of the first leg may support solder between the anchoring mechanism and the first hole. Likewise, the second leg may mount through a second hole of the printed circuit board and include a compressible section to compress when inserted into the second hole and to expand after passing through the second hole. The compressible section of the second leg may support solder between the anchoring mechanism and the second hole.Type: GrantFiled: September 28, 2001Date of Patent: May 11, 2004Assignee: Intel CorporationInventors: George Arrigotti, Tom E. Pearson, Raiyomand F. Aspandiar, Christopher D. Combs
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Publication number: 20040080907Abstract: A variable gap thermal interface is coupled with a cold or hot plate, forming a low thermal resistance connection between an electronic device module containing at least one heat generating electronic device and a rack or other structure. The variable gap thermal interface and the cold or hot plate are provided in a configuration to allow quick-disconnect of the electronic device module from the rack, allowing for a wide dimensional tolerance between the module and the rack while maintaining a reliable thermal connection. An embodiment including a plurality of server modules within a server rack in conformance with the present invention, allows the replacement of server modules while powered without any disconnection or reconnection of hoses to cold plates used in cooling the server modules, thus greatly reducing the probability of leaks and resulting damage to the system.Type: ApplicationFiled: October 25, 2002Publication date: April 29, 2004Inventors: Christian L. Belady, Christopher C. Womack
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Publication number: 20040075985Abstract: A power component assembly for mechatronic integration of power components is disclosed. The assembly includes a circuit board on which a plurality of bare power components is arranged. At least one cooling element is connected to a pressure-mounting frame that holds the power components in thermal contact with the cooling element(s). Heat generated by the power components is thereby dissipated by the cooling element(s).Type: ApplicationFiled: September 18, 2003Publication date: April 22, 2004Applicant: SIEMENS AKTIENGESELLSCHAFTInventor: Ralf-Michael Franke