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Title: |
US5724729:
Method and apparatus for cooling of chips using a plurality of customized thermally conductive materials
[ Derwent Title ]

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Country: |
US United States of America

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Inventor: |
Sherif, Raed A.; Hopewell Junction, NY
Courtney, Mark Gerard; Poughkeepsie, NY
Edwards, David Linn; Poughkeepsie, NY
Fahey, Albert Joseph; Pasadena, CA
Hopper, Gregory Scott; Fishkill, NY
Iruvanti, Sushumna; Wappingers Falls, NY
Jones, Charles Frederick; Poughkeepsie, NY
Messina, Gaetano Paolo; Hopewell Junction, NY

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Assignee: |
International Business Machines Corporation, Armonk, NY
other patents from INTERNATIONAL BUSINESS MACHINES CORPORATION (280070) (approx. 44,393)
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Published / Filed: |
1998-03-10
/ 1996-04-15

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Application Number: |
US1996000632718

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IPC Code: |
Advanced:
H01L 23/373;
H01L 23/42;
H01L 23/64;
H01L 25/065;
Core:
H01L 23/34;
H01L 23/58;
more...
IPC-7:
H05K 3/34;

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ECLA Code: |
H01L23/065N; H01L23/373P; H01L23/42; H01L23/64C;

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U.S. Class: |
Current:
029/840;
257/707;
257/722;
257/E23.087;
257/E23.107;
257/E25.012;
361/705;
Original:
029/840;
257/707;
257/722;
361/705;

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Field of Search: |
029/840
257/707,722
174/260
437/209
361/705

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Priority Number: |
| 1996-04-15 |
US1996000632718 |
| 1995-05-31 |
US1995000455463 |
| 1994-12-05 |
US1994000349232 |

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Abstract: |
The present invention relates generally to a new apparatus and method for customized cooling of chips using a plurality of thermally conductive materials. More particularly, the invention encompasses an apparatus and a method that provides customized cooling of a MCM (Multi-Chip Module) by using a plurality of thermally conductive materials.

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Attorney, Agent or Firm: |
Ahsan, Aziz M. ;

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Primary / Asst. Examiners: |
Arbes, Carl J.;

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INPADOC Legal Status: |
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Family Legal Status Report

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Parent Case: |
CROSS-REFERENCE
This patent application is a Continuation of U.S. patent application Ser. No. 08/455,463, filed on May 31, 1995, now U.S. Pat. No. 5,604,978, which was a Division of U.S. patent application Ser. No. 08/349,232, filed on Dec. 5, 1994.

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Family: |
Show 3 known family members

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First Claim:
Show all 18 claims |
What is claimed is:
1. A method to provide a customized thermally conductive path between a plurality of chips and a thermal cap, comprising the steps of:
- (a) securing said chips to a substrate,
- (b) placing at least one first thermally conductive material on a first chip, and at least one second thermally conductive material on a second chip, wherein the thermal conductivity of said first thermally conductive material is different than the thermal conductivity of said second thermally conductive material, and wherein said at least one first thermally conductive material is selected from a group consisting of thermal oil, thermal paste, thermal grease and thermal compound, and
- (c) securing said thermal cap to said substrate.

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Background / Summary: |
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Drawing Descriptions: |
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Description: |
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Forward References: |
Show 41 U.S. patent(s) that reference this one

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Foreign References: |

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Other Abstract Info: |
DERABS G97-153209
DERG98-192268
DERABS G97-244559
DERABS G98-192268

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Other References: |
Reasearch Disclosure, No. 270, Publication No. 27014, Oct. 1986, "Stick-On Heat Sink".
Research Disclosure, No. 312, Publication No. 31293, Apr. 1990, "Controlled Collapse Thermal Joint Between Chip and Heat Sink".
Research Disclosure, No. 322, Publication No. 32262, Feb. 1991, "TCM Thermal Reticle".
Research Disclosure, No. 323, Publication No. 32364, Mar. 1991, "Clog-Resistant Jet Impingement Flow Balancing Device".
Research Disclosure, No. 326, Publication No. 32677, Jun. 1991, "TCM Hat Customization".
Technical Disclosure Bulletin, vol. 21, No. 2, Jul. 1978, "Conduction Cooling".
Technical Disclosure Bulletin, vol. 31, No. 12, May 1989, "Circuit Module Cooling with Multiple Pistons Contacting a Heat Spreader/Electrical Buffer Plate in Contact with Chip".
Technical Disclosure Bulletin, vol. 32, No. 8A, Jan. 1990, "Buffered Immersion Cooling with Buckling Bellows Providing Barrier Between Chip and System Coolant and Pressure".
Technical Disclosure Bulletin, vol. 33, No. 1A, Jun. 1990, "Fault-Tolerant Immersion Cooling".

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