Patent US5548482A successfully refreshed from Google Patents.
US5548482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor integrated circuit apparatus including clamped heat sink
Assignee: Mitsubishi Electric Corp
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Filing: 1995-06-06
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Granted: 1996-08-20
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Expires: 2015-06-06
Abstract
Abstract The present invention provides a semiconductor integrated circuit apparatus with a heat sink that can be changed in size, that accommodates a board and electronic parts having different sizes, and that increases heat radiation. The present invention includes a cooling member facing and connected to electronic parts via a thermally conductive resin or thermally conductive fat and fatty oil and at least two thermally conductive clamps that are soldered to a board and that support portions of the perimeter of the cooling member.
Inventors
- 👤 Kazushi Hatauchi
- 👤 Haruo Shimamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:13
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/20; H10W40/22; H10W40/60; H10W40/641; H10W90/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
A semiconductor integrated circuit apparatus having: a board and a plurality of electronic parts, such as semiconductor integrated circuit devices, mounted on said board; a cooling member disposed opposite said electronic parts; a thermally conductive material disposed between and contacting said electronic parts and said cooling member; and at least two thermally conductive clamps soldered to said board, clamping said cooling member at a periphery, and urging said cooling member against said thermally conductive material and toward said electronic parts wherein said board includes at least one thermal via and at least one of said clamps is soldered to said board at said at least one thermal via.
Claim 2
Dependent Claim
108 words
A semiconductor integrated circuit apparatus having: a board and a plurality of electronic parts, such as semiconductor integrated circuit devices, mounted on said board; a cooling member disposed opposite said electronic parts; a thermally conductive material disposed between and contacting said electronic parts and said cooling member; and at least two thermally conductive clamps soldered to said board, clamping said cooling member at a periphery, and urging said cooling member against said thermally conductive material and toward said electronic parts wherein said board includes at least one thermal via and at least one of said clamps is soldered to said board at said at least one thermal via.
Claim 3
Dependent Claim
120 words
A semiconductor integrated circuit apparatus having: a board and a plurality of electronic parts, such as semiconductor integrated circuit devices, mounted on said board; a cooling member disposed opposite said electronic parts; a thermally conductive material disposed between and contacting said electronic parts and said cooling member; and at least two thermally conductive clamps soldered to said board, clamping said cooling member at a periphery, and urging said cooling member against said thermally conductive material and toward said electronic parts wherein said electronic parts have different heights relative to said board and said cooling member includes protrusions protruding toward said electronic parts and providing continuous mechanical connections between said electronic parts and said cooling member through said thermally conductive material.
Claim 4
Dependent Claim
120 words
A semiconductor integrated circuit apparatus having: a board and a plurality of electronic parts, such as semiconductor integrated circuit devices, mounted on said board; a cooling member disposed opposite said electronic parts; a thermally conductive material disposed between and contacting said electronic parts and said cooling member; and at least two thermally conductive clamps soldered to said board, clamping said cooling member at a periphery, and urging said cooling member against said thermally conductive material and toward said electronic parts wherein said electronic parts have different heights relative to said board and said cooling member includes protrusions protruding toward said electronic parts and providing continuous mechanical connections between said electronic parts and said cooling member through said thermally conductive material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-08-20 | 2000-02-19 | 2000-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-20 | 2004-02-19 | 2004-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-20 | 2008-02-19 | 2008-08-20 | $7700.00 | Window Closed / Lapsed |