US4313128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compression bonded electronic device comprising a plurality of discrete semiconductor devices
Assignee: Westinghouse Electric Corp
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Filing: 1979-05-08
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Granted: 1982-01-26
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Expires: 1999-05-08
Abstract
Abstract An electronic device is provided comprising two or more discrete semiconductor devices in an electrical circuit relationship, hermetically sealed within a single case member. Electrical and thermal conductivity between the semiconductor devices and electrodes on the case member is established and maintained by the application of a compressive force to the case member. The compressive force applied to the case member is distributed to the individual semiconductor devices sealed within the case member.
Inventors
- 👤 Earl S. Schlegel
- 👤 Derrick J. Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:44
CPC Classifications
H; H10; H10W; H10W72/00; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/138; H10W90/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
181 words
An electronic device comprising: (a) a case member, said case member comprising a bottom member, a top member and a side member, said side member being joined to and extending between said bottom member and said top member, said bottom member, top member and side member forming a chamber, said top member of said case being comprised of a plate portion and pole portions, (b) means associated with a surface of said bottom member disposed within said chamber for positioning a plurality of semiconductor devices upon said surface, (c) a plurality of semiconductor devices disposed in predetermined positions upon the surface of said bottom member within said chamber, (d) means comprising said pole portions of said top member distributing a compressive force, applied to said case member, to each of said plurality of semiconductor devices, there being a pole portion for each device, whereby said semiconductor devices are held in an electrical and thermal conductive relationship with portions of said case member and in an electrical circuit relationship with each other when the compressive force is applied to said case member.
Claim 2
Dependent Claim
181 words
An electronic device comprising: (a) a case member, said case member comprising a bottom member, a top member and a side member, said side member being joined to and extending between said bottom member and said top member, said bottom member, top member and side member forming a chamber, said top member of said case being comprised of a plate portion and pole portions, (b) means associated with a surface of said bottom member disposed within said chamber for positioning a plurality of semiconductor devices upon said surface, (c) a plurality of semiconductor devices disposed in predetermined positions upon the surface of said bottom member within said chamber, (d) means comprising said pole portions of said top member distributing a compressive force, applied to said case member, to each of said plurality of semiconductor devices, there being a pole portion for each device, whereby said semiconductor devices are held in an electrical and thermal conductive relationship with portions of said case member and in an electrical circuit relationship with each other when the compressive force is applied to said case member.
Claim 3
Dependent Claim
57 words
The invention of claim 1 in which the means associated with a surface of said bottom member disposed within said chamber for positioning a plurality of semiconductor devices upon said surface is a cap of an electrically insulating material disposed upon said surface, walls of said insulating material forming a plurality of apertures therein extending entirely therethrough.
Claim 4
Dependent Claim
40 words
The invention of claim 1 in which the means associated with a surface of said bottom member disposed within said chamber for positioning a plurality of semiconductor devices upon said surface is a plurality of cavities formed within said surface.
Claim 5
Dependent Claim
24 words
The invention of claim 1 in which said pole portions are electrically insulated from the remainder of said top member of said case member.
Claim 6
Dependent Claim
26 words
The invention of claim 1 in which two semiconductor devices are disposed in a predetermined position upon said surface of said bottom member within said chamber.
Claim 7
Dependent Claim
21 words
The invention of claim 5 in which one semiconductor device is a diode and the other semiconductor device is a thyristor.
Claim 8
Dependent Claim
18 words
The invention of claim 6 in which the diode and thyristor are in an antiparallel electrical circuit relationship.
Claim 9
Dependent Claim
18 words
The invention of claim 5 in which both semiconductor devices are thyristors in an antiparallel electrical circuit relationship.
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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) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |