US4330683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulation for semiconductor device
Assignee: AT&T Inc
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Filing: 1980-12-03
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Granted: 1982-05-18
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Expires: 2000-12-03
Abstract
Abstract A semiconductor encapsulation of the chip carrier type has a collar-like protective housing member which encompasses the periphery of the chip carrier from which external lead members protrude. The protective housing member has a mating surface with a portion of the surface of the carrier. The interior of the protective housing member has recesses which accommodate the lead members singly, thus precluding their deformation.
Inventors
- 👤 Frederick D. Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:37
CPC Classifications
H; H10; H10W; H10W42/00; H10W42/121; H10W70/00; H10W70/40; H10W70/421; H10W70/424; H10W70/427; H10W76/00; H10W76/10; H10W76/12; H10W76/15; H10W76/157
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
A semiconductor encapsulation of the chip carrier type having an array of close-spaced external metal lead members disposed in parallel relation around the periphery thereof, characterized in that a collar-like protective housing member encompasses the periphery of the carrier and the external lead members, and has a mating surface which contacts a portion of the surface of the carrier, said mating surface comprising an inwardly projecting flange, the interior periphery of said flange defining with a portion of the surface of the carrier an annular slot, and which has a T-section key member bonded in said slot.
Claim 2
Dependent Claim
97 words
A semiconductor encapsulation of the chip carrier type having an array of close-spaced external metal lead members disposed in parallel relation around the periphery thereof, characterized in that a collar-like protective housing member encompasses the periphery of the carrier and the external lead members, and has a mating surface which contacts a portion of the surface of the carrier, said mating surface comprising an inwardly projecting flange, the interior periphery of said flange defining with a portion of the surface of the carrier an annular slot, and which has a T-section key member bonded in said slot.
Claim 3
Dependent Claim
101 words
A semiconductor encapsulation of the chip carrier type having an array of close-spaced external metal lead members disposed in parallel relation around the periphery thereof, characterized in that a collar-like protective housing member encompasses the periphery of the carrier and the external lead members, and has a mating surface which contacts a portion of the surface of the carrier, the interior surface of the protective housing member having an array of recesses each of which accommodates an external lead member of the carrier, the lead members being free of any physical contact with the surfaces of said recesses or said carrier.
Claim 4
Dependent Claim
101 words
A semiconductor encapsulation of the chip carrier type having an array of close-spaced external metal lead members disposed in parallel relation around the periphery thereof, characterized in that a collar-like protective housing member encompasses the periphery of the carrier and the external lead members, and has a mating surface which contacts a portion of the surface of the carrier, the interior surface of the protective housing member having an array of recesses each of which accommodates an external lead member of the carrier, the lead members being free of any physical contact with the surfaces of said recesses or said carrier.
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) | 1985-05-17 | 1985-11-16 | 1986-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-17 | 1989-11-16 | 1990-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-17 | 1993-11-16 | 1994-05-18 | $7700.00 | Window Closed / Lapsed |