US3351698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat sink mounting for semiconductor devices
Assignee: International Business Machines Corp
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Filing: 1964-11-13
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Granted: 1967-11-07
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Expires: 1984-11-13
Abstract
No abstract record available.
Inventors
- 👤 John C Marinace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:34
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/02; H01S5/024; H01S5/02407; H01S5/02423; H10; H10W; H10W40/00; H10W40/10; H10W40/30; H10W40/305; H01S5/022; H01S5/0235; H01S5/02355; H01S5/02365
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A HEAT SINK MOUNTING COMPRISING A PAIR OF PLANAR MEMBERS FORMED OF RESILIENT CONDUCTIVE MATERIAL AND RIGIDLY SUPPORTED AT ONE END PORTION ON AN INSULATING SPACER IN PARALLEL ELECTRICALLY-INSULATED RELATIONSHIP, A SEMICONDUCTOR DEVICE INSERTED BETWEEN THE OTHER END PORTION OF SAID PLANER MEMBERS AND HAVING PLANAR AREAS DEFINING TERMINAL CONTACTS WHICH ARE DISPOSED ADJACENT TO OPPOSING SURFACES OF SAID PLANAR MEMBERS, A THIN FILM OF CONDUCTIVE MATERIAL FORMED OVER AT LEAST SAID OPENING SURFACE AREAS OF SAID PLANER MEMBERS AND OVER SAID PLANAR AREAS OF SAID SEMICONDUCTOR DEVICE, THE THICKNESS OF SAID INSULATING SPACER BEING EFFECTIVE TO DETERMINE THE NORMAL SPACING BETWEEN SAID OPENING SURFACE AREAS OF SAID PLANAR MEMBERS SUCH THAT PRESSURE CONTACT IS MADE BETWEEN ENGAGING THIN FILMS ON SAID PLANAR MEMBERS AND SAID SEMICONDUCTOR DEVICE AT LEAST SUFFICIENT TO PROVIDE ELECTRICAL CONDUCTIVELY BETWEEN SAID PLANAR MEMBERS AND SAID SEMICONDUCTOR DEVICE.
Claim 2
Dependent Claim
143 words
A HEAT SINK MOUNTING COMPRISING A PAIR OF PLANAR MEMBERS FORMED OF RESILIENT CONDUCTIVE MATERIAL AND RIGIDLY SUPPORTED AT ONE END PORTION ON AN INSULATING SPACER IN PARALLEL ELECTRICALLY-INSULATED RELATIONSHIP, A SEMICONDUCTOR DEVICE INSERTED BETWEEN THE OTHER END PORTION OF SAID PLANER MEMBERS AND HAVING PLANAR AREAS DEFINING TERMINAL CONTACTS WHICH ARE DISPOSED ADJACENT TO OPPOSING SURFACES OF SAID PLANAR MEMBERS, A THIN FILM OF CONDUCTIVE MATERIAL FORMED OVER AT LEAST SAID OPENING SURFACE AREAS OF SAID PLANER MEMBERS AND OVER SAID PLANAR AREAS OF SAID SEMICONDUCTOR DEVICE, THE THICKNESS OF SAID INSULATING SPACER BEING EFFECTIVE TO DETERMINE THE NORMAL SPACING BETWEEN SAID OPENING SURFACE AREAS OF SAID PLANAR MEMBERS SUCH THAT PRESSURE CONTACT IS MADE BETWEEN ENGAGING THIN FILMS ON SAID PLANAR MEMBERS AND SAID SEMICONDUCTOR DEVICE AT LEAST SUFFICIENT TO PROVIDE ELECTRICAL CONDUCTIVELY BETWEEN SAID PLANAR MEMBERS AND SAID SEMICONDUCTOR DEVICE.
References Cited (Backward Citations)
US3238425A
Cited
US3226466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |