Patent US4485429A successfully refreshed from Google Patents.
US4485429A
Expired / Lapsed
US
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Apparatus for cooling integrated circuit chips
Assignee: Unisys Corp
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Filing: 1984-01-30
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Granted: 1984-11-27
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Expires: 2004-01-30
Abstract
Abstract A multichip thermal conduction module has improved cooling in a housing having a board including chips mounted on the board. The housing is divided so as to form first and second cooling portions. The chips are in the first cooling portion. Several bunches of heat conducting strands extend into the first cooling portion so that each bunch is urged into deflecting contact with a respective chip. A fluid inlet and outlet are provided in the second cooling portion.
Inventors
- 👤 Faquir C. Mittal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:01
CPC Classifications
F; F28; F28F; F28F3/00; F28F3/02; F28F3/022; H; H10; H10W; H10W40/00; H10W40/40; H10W40/47; H10W40/70; H10W40/77
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
148 words
An integrated circuit chips cooling apparatus, comprising: a housing including a board having integrated circuit chips mounted thereon, said chips having a substantially planar surface; means mounted in the housing for separating first and second cooling portions, said separating means including a cold plate and said chips being in said first portion opposite said plate; means including bunched, heat-conductive strands connected together at a first end to one side of said cold plate and having a second end extending into said first cooling portion flexing and spreading apart in contact with said planar surface of a respective chip; a fluid inlet in said housing; a fluid outlet in said housing; and other bunched, heat conductive strands having a first end conneted to another side of said cold plate opposite said one side, said other strands having a second end spreading and extending freely into said second cooling portion.
Claim 2
Dependent Claim
148 words
An integrated circuit chips cooling apparatus, comprising: a housing including a board having integrated circuit chips mounted thereon, said chips having a substantially planar surface; means mounted in the housing for separating first and second cooling portions, said separating means including a cold plate and said chips being in said first portion opposite said plate; means including bunched, heat-conductive strands connected together at a first end to one side of said cold plate and having a second end extending into said first cooling portion flexing and spreading apart in contact with said planar surface of a respective chip; a fluid inlet in said housing; a fluid outlet in said housing; and other bunched, heat conductive strands having a first end conneted to another side of said cold plate opposite said one side, said other strands having a second end spreading and extending freely into said second cooling portion.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 including: means connected to said inlet and outlet for moving a fluid coolant through said housing.
References Cited (Backward Citations)
US4156458A
Cited
US4203129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-27 | 1988-05-28 | 1988-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-27 | 1992-05-28 | 1992-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-27 | 1996-05-28 | 1996-11-27 | $7700.00 | Window Closed / Lapsed |