US5014777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling structure
Assignee: NEC Corp
•
Filing: 1989-09-19
•
Granted: 1991-05-14
•
Expires: 2009-09-19
Abstract
Abstract A cooling structure which includes a substrate, at least one heat generating member fixed on the substrate, a heat radiating member provided above the heat generating member, and an elastic heat transfer sheet provided between the heat generating member and the heat radiating member for conducting heat generated in the heat generating member to the heat radiating member, with either the heat radiating member being formed with grooves at least on the part opposite the heat generating member, or the at least one heat generating member being formed with grooves on the upper portion thereof, or the elastic heat transfer sheet being formed with grooves on either one of the surface opposite the heat generating member or the surface opposite the heat radiating member.
Inventors
- 👤 Toshifumi Sano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:11
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/60; H10W40/611; H10W40/20; H10W40/22; H10W40/70; H10W40/77; H10W40/774; H10W40/231; H10W40/235; H10W40/242
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
72 words
A cooling structure comprising: a substrate; at least one heat generating member fixed on said substrate; a heat radiating member provided above said heat generating member which is formed with grooves at least on the part opposite said heat generating member; and an elastic heat transfer sheet provided between said heat generating member and said heat radiating member for conducting heat generating in said heat generating member to said heat radiating member.
Claim 2
Dependent Claim
72 words
A cooling structure comprising: a substrate; at least one heat generating member fixed on said substrate; a heat radiating member provided above said heat generating member which is formed with grooves at least on the part opposite said heat generating member; and an elastic heat transfer sheet provided between said heat generating member and said heat radiating member for conducting heat generating in said heat generating member to said heat radiating member.
Claim 3
Dependent Claim
66 words
A cooling structure comprising: a substrate; at least one heat generating member fixed on said substrate which is formed with grooves on upper portion thereof; a heat radiating member provided above said heat generating member; and an elastic heat transfer sheet provided between said heat generating member and said heat radiating member for conducting heat generating in said heat generating member to said heat radiating member.
Claim 4
Dependent Claim
66 words
A cooling structure comprising: a substrate; at least one heat generating member fixed on said substrate which is formed with grooves on upper portion thereof; a heat radiating member provided above said heat generating member; and an elastic heat transfer sheet provided between said heat generating member and said heat radiating member for conducting heat generating in said heat generating member to said heat radiating member.
Claim 5
Dependent Claim
23 words
The cooling structure as set forth in claim 1, wherein said heat radiating member is a piston on which said grooves are formed.
Claim 6
Dependent Claim
18 words
The cooling structure as set forth in claim 1, wherein said grooves are arranged in parallel linear relation.
Claim 7
Dependent Claim
18 words
The cooling structure as set forth in claim 1, wherein said grooves are arranged in a grid form.
Claim 8
Dependent Claim
18 words
The cooling structure as set forth in claim 1, wherein said grooves are arranged in a radial form.
Claim 9
Dependent Claim
18 words
The cooling structure as set forth in claim 1, wherein said grooves are arranged in a spiral form.
Claim 10
Dependent Claim
18 words
The cooling structure as set forth in claim 1, wherein said grooves are arranged in a concentric form.
Claim 11
Dependent Claim
60 words
The cooling structure as set forth in claim 1, wherein said at least one heat generating member includes at least one semiconductor component and includes a heat transfer plate, said heat transfer plate being made of a material having a high thermal conductivity and having a thermal expansion coefficient substantially equal to that of said at least one semiconductor component.
Claim 12
Dependent Claim
20 words
The cooling structure as set forth in claim 9, wherein said heat transfer plate is formed of a Cu/W alloy.
Claim 13
Dependent Claim
54 words
The cooling structure as set forth in claim 2, wherein said at least one heat generating member includes a heat transfer plate on which said grooves are formed and at least one semiconductor component, said heat transfer plate having a thermal expansion coefficient substantially equal to that of said at least one semiconductor component.
Claim 14
Dependent Claim
42 words
The cooling structure as set forth in claim 2, wherein said at least one heat generating member includes a heat transfer plate on which said grooves are formed, said heat transfer plate being made of a material having a high heat conductivity.
Claim 15
Dependent Claim
43 words
The cooling structure as set forth in claim 12, wherein said at least one heat generating member includes at least one semiconductor component, said heat transfer plate having a thermal expansion coefficient substantially equal to that of said at least one semiconductor component.
Claim 16
Dependent Claim
20 words
The cooling structure as set forth in claim 12, wherein said heat transfer plate is formed of a Cu/W alloy.
Claim 17
Dependent Claim
20 words
The cooling structure as set forth in claim 13, wherein said heat transfer plate is formed of a Cu/W alloy.
Claim 18
Dependent Claim
18 words
The cooling structure as set forth in claim 2, wherein said grooves are arranged in parallel linear relation.
Claim 19
Dependent Claim
18 words
The cooling structure as set forth in claim 2, wherein said grooves are arranged in a grid form.
Claim 20
Dependent Claim
18 words
The cooling structure as set forth in claim 2, wherein said grooves are arranged in a concentric form.
Claim 21
Dependent Claim
18 words
The cooling structure as set forth in claim 2, wherein said grooves are arranged in a radial form.
Claim 22
Dependent Claim
18 words
The cooling structure as set forth in claim 2, wherein said grooves are arranged in a spiral form.
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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) | 1994-05-13 | 1994-11-12 | 1995-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-13 | 1998-11-12 | 1999-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-13 | 2002-11-12 | 2003-05-14 | $7700.00 | Window Closed / Lapsed |