Patent US5199521A successfully refreshed from Google Patents.
Patent US4602314A successfully refreshed from Google Patents.
US4602314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat conduction mechanism for semiconductor devices
Assignee: Intel Corp
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Filing: 1983-10-14
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Granted: 1986-07-22
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Expires: 2003-10-14
Abstract
Abstract The present invention provides a mechanism for conducting heat away from a semiconductor device, and has particular application for use with VLSI technology. The present invention comprises an elongated, resilient and deformable central body having a thermally conductive outer surface which is disposed in contact with a surface of the semiconductor device. In the preferred embodiment, the semiconductor devices comprising an electronic circuit configuration are disposed on a circuit board in rows. The present invention is formed into strips such that one strip of the central body portion of the present invention is disposed over each row of semiconductor devices. A heat sink is placed over the central body portion of the present invention such that the central body with its thermally conductive outer surface is sandwiched between an upper surface of the semiconductor device and the heat sink. Heat generated by the semiconductor device is conducted through the thermally conductive outer surface of the resilient central body to the heat sink where it is radiated and conducted away from the semiconductor device.
Inventors
- 👤 Neal E. Broadbent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:19
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/2039; H05K7/20509; H05K7/20436; H05K7/20445; H05K7/20454
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
A device which conducts heat away from a plurality of integrated circuit packages mounted on a printed circuit board, comprising: a resilient and deformable central body, said central body being generally formed into a contiguous strip; a thermally conductive deformable outer member substantially surrounding said central body, said inner central body comprises a thermally nonconducting elastomer; said central body being disposed such that a portion of said outer member physically contacts a plurality of said integrated circuit packages on said printed circuit board, to conduct heat generated by said packages through said outer member and radiated away from said integrated circuit packages.
Claim 2
Independent Claim
102 words
A device which conducts heat away from a plurality of integrated circuit packages mounted on a printed circuit board, comprising: a resilient and deformable central body, said central body being generally formed into a contiguous strip; a thermally conductive deformable outer member substantially surrounding said central body, said inner central body comprises a thermally nonconducting elastomer; said central body being disposed such that a portion of said outer member physically contacts a plurality of said integrated circuit packages on said printed circuit board, to conduct heat generated by said packages through said outer member and radiated away from said integrated circuit packages.
Claim 3
Dependent Claim
45 words
The device as defined by claim 1, further including a metallic heat sink in contact with said outer member, opposite said surface in contact with said packages, such that heat is conducted through said outer member to said heat sink and into the ambient environment.
Claim 4
Dependent Claim
22 words
The device as defined by claim 2, wherein said integrated circuit packages are mounted on said printed circuit board in a row.
Claim 5
Dependent Claim
16 words
The device as defined by claim 1, wherein said thermally conductive deformable outer member comprises aluminum.
Claim 6
Dependent Claim
16 words
The device as defined by claim 1, wherein said thermally conductive deformable outer member comprises copper.
Claim 7
Dependent Claim
136 words
A mechanism dissipating heat from a plurality of integrated circuit packages mounted on a printed circuit board, comprising: a plurality of resilient and deformable central bodies, each of said central bodies being formed into a contiguous strip; a thermally conductive deformable metallic outer member substantially surrounding each of said central bodies said inner central body comprises a thermally non-conducting elastomer; each of said central bodies being disposed such that each of said outer members are in physical contact with a plurality of said integrated circuit packages on said printed circuit board; a metallic heat sink disposed above said plurality of central bodies and in physical contact with each of their outer members, such that heat eminating from said packages is conducted through said outer members and to said heat sink and radiated to the ambient environment.
Claim 8
Dependent Claim
136 words
A mechanism dissipating heat from a plurality of integrated circuit packages mounted on a printed circuit board, comprising: a plurality of resilient and deformable central bodies, each of said central bodies being formed into a contiguous strip; a thermally conductive deformable metallic outer member substantially surrounding each of said central bodies said inner central body comprises a thermally non-conducting elastomer; each of said central bodies being disposed such that each of said outer members are in physical contact with a plurality of said integrated circuit packages on said printed circuit board; a metallic heat sink disposed above said plurality of central bodies and in physical contact with each of their outer members, such that heat eminating from said packages is conducted through said outer members and to said heat sink and radiated to the ambient environment.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |