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Patent US3234057A successfully refreshed from Google Patents.
US3234057A
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Semiconductor heterojunction device
Assignee: International Business Machines Corp
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Filing: 1961-06-23
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Granted: 1966-02-08
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Expires: 1981-06-23
Abstract
No abstract record available.
Inventors
- 👤 Richard L Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:20
CPC Classifications
H; H10; H10P; H10P10/00; H10P10/12; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/072; Y10S438/00; Y10S438/933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A SEMICONDUCTOR DEVICE COMPRISING A MONOCRYSTALLINE REGION OF A FIRST SEMICONDUCTOR MATERIAL OF ONE CONDUCTIVITY TYPED AND A SECOND REGION OF A SECOND MONOCRYSTALLINE SEMICONDUCTOR MATERIAL OF THE SAME CONDUCTIVITY TYPED JOINED IN A SUBSTANTIALLY CONTINUOUS CRYSTALLINE INTERFACE TO FORM A RECTIFYING ELECTRICAL JUNCTION AND EXHIBITING
Claim 2
Dependent Claim
46 words
A SEMICONDUCTOR DEVICE COMPRISING A MONOCRYSTALLINE REGION OF A FIRST SEMICONDUCTOR MATERIAL OF ONE CONDUCTIVITY TYPED AND A SECOND REGION OF A SECOND MONOCRYSTALLINE SEMICONDUCTOR MATERIAL OF THE SAME CONDUCTIVITY TYPED JOINED IN A SUBSTANTIALLY CONTINUOUS CRYSTALLINE INTERFACE TO FORM A RECTIFYING ELECTRICAL JUNCTION AND EXHIBITING
References Cited (Backward Citations)
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Cited
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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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |