US3869704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device with dispersed glass getter layer
Assignee: Motorola Solutions Inc
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Filing: 1973-09-17
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Granted: 1975-03-04
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Expires: 1993-09-17
Abstract
Abstract A semiconductor device having at least one region of P conductivity type material and a second region of N conductivity type material defining a P-N junction therebetween and having electrically conductive terminals extending therefrom, is provided with a closure member that has a phosphorous-doped finely divided glass filler. The glass filler provides the closure member with a continuing getter capability.
Inventors
- 👤 William L Hunter
- 👤 Keith Gordon Spanjer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:03
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/47; H10W74/473; Y; Y10; Y10S; Y10S257/00; Y10S257/928
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
62 words
A SEMICONDUCTOR DEVICE HAVING A BODY OF SEMICONDUCTOR MATERIAL HAVING AT LEAST ONE REGION OF P CONDUCTIVITY AND A SECOND CONDUCTIVITY OF N CONDUCTIVITY TYPE DEFINING A P-N JUNCTION THEREBETWEEN, HAVING ELECTRICALLY CONDUCTIVE TERMINALS EXTENDING THEREFROM, AND HAVING A CLOSURE MEMBER, THE CLOSURE MEMBER SURROUNDING THE BODY OF SEMICONDUCTOR MATERIAL AND BEING COMPRISED OF PLASTIC HAVING A PHOSPHOROUSDOPED FINELY DIVIDED GLASS FILLER.
Claim 2
Dependent Claim
62 words
A SEMICONDUCTOR DEVICE HAVING A BODY OF SEMICONDUCTOR MATERIAL HAVING AT LEAST ONE REGION OF P CONDUCTIVITY AND A SECOND CONDUCTIVITY OF N CONDUCTIVITY TYPE DEFINING A P-N JUNCTION THEREBETWEEN, HAVING ELECTRICALLY CONDUCTIVE TERMINALS EXTENDING THEREFROM, AND HAVING A CLOSURE MEMBER, THE CLOSURE MEMBER SURROUNDING THE BODY OF SEMICONDUCTOR MATERIAL AND BEING COMPRISED OF PLASTIC HAVING A PHOSPHOROUSDOPED FINELY DIVIDED GLASS FILLER.
Claim 3
Dependent Claim
14 words
The semiconductor device of claim 1 wherein the closure member comprises a plastic encapsulant.
References Cited (Backward Citations)
US2902633A
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US2846625A
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US2857560A
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US2998556A
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US3056074A
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US3487275A
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US3465209A
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US3700497A
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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) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |