US5498900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor package with weldable ceramic lid
Assignee: Honeywell Inc
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Filing: 1993-12-22
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Granted: 1996-03-12
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Expires: 2013-12-22
Abstract
Abstract An integrated circuit package for use in radiation environments includes a base and a lid of insulative materials. The base has a recess for receiving a die and a seal ring located on the periphery. The lid has a central insulation portion and an outwardly extending flange which can be welded to the seal ring.
Inventors
- 👤 Thomas J. Dunaway
- 👤 Richard K. Spielberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:19
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/60; H10W42/00; H10W42/20; H10W70/00; H10W70/60; H10W70/67; H10W70/68; H10W70/682; H10W90/00; H10W90/701; H10W90/751; H10W90/754
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
102 words
An integrated circuit package for use in radiation environments comprising: a base formed from an electrically insulative material, said base having a recessed central portion for receiving an integrated circuit die and a peripheral portion; a metal seal ring secured to said peripheral portion of said base; a central lid portion formed from an electrically insulative material, said central lid portion having a periphery; an outwardly extending metal flange secured to said periphery portion of said central lid portion, said flange for complementary receipt on said metal seal ring with said flange and said seal ring connected by a solder-free welded bond.
Claim 2
Dependent Claim
102 words
An integrated circuit package for use in radiation environments comprising: a base formed from an electrically insulative material, said base having a recessed central portion for receiving an integrated circuit die and a peripheral portion; a metal seal ring secured to said peripheral portion of said base; a central lid portion formed from an electrically insulative material, said central lid portion having a periphery; an outwardly extending metal flange secured to said periphery portion of said central lid portion, said flange for complementary receipt on said metal seal ring with said flange and said seal ring connected by a solder-free welded bond.
Claim 3
Dependent Claim
28 words
Circuit package of claim 1 wherein said base and said lid are formed of a ceramic material and said metal seal ring and said metal flange are kovar.
Claim 4
Dependent Claim
75 words
An integrated circuit package for use in radiation environments comprising: a ceramic base having a central area for receiving a die and a perimeter surface area; a metal seal ring secured to said perimeter surface area; a lid having a central ceramic portion and an outwardly extending metal flange secured to said ceramic portion, said metal flange resting on said metal seal ring and connected to said metal seal ring by a solder-free welded bond.
Claim 5
Dependent Claim
75 words
An integrated circuit package for use in radiation environments comprising: a ceramic base having a central area for receiving a die and a perimeter surface area; a metal seal ring secured to said perimeter surface area; a lid having a central ceramic portion and an outwardly extending metal flange secured to said ceramic portion, said metal flange resting on said metal seal ring and connected to said metal seal ring by a solder-free welded bond.
Claim 6
Dependent Claim
16 words
Integrated circuit package of claim 3 wherein said metal flange and said seal ring are kovar.
References Cited (Backward Citations)
US4626960A
Cited
US4827082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-03-12 | 1999-09-11 | 2000-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-12 | 2003-09-11 | 2004-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-12 | 2007-09-11 | 2008-03-12 | $7700.00 | Window Closed / Lapsed |