Patent US3641406A successfully refreshed from Google Patents.
US3641406A
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US
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Semiconductor heterojunction device
Assignee: US Philips Corp
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Filing: 1969-09-03
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Granted: 1972-02-08
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Expires: 1989-09-03
Abstract
Abstract A semiconductor device including a semiconductor body having at least one junction between two semiconductor compounds which consist of same two elements, for example tin selenide and tin diselenide.
Inventors
- 👤 Wouter Albers
- 👤 Jacobus Verberkt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:55
CPC Classifications
H; H10; H10P; H10P95/00; C; C30; C30B; C30B21/00; C30B21/02; H10D; H10D99/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
59 words
A semiconductor device as claimed in claim 1 in which the semiconductor compounds in the respective parts comprise deviations from their stoichiometric ratios, said deviations consisting in one compound having an excess of the element which the other compound contains relatively more and the other compound having an excess of the element which the one compound contains relatively more.
Claim 2
Dependent Claim
24 words
A semiconductor device as claimed in claim 1 in which the semiconductor body comprises at least two heterojunctions which extend parallel to each other.
Claim 3
Dependent Claim
44 words
A semiconductor device as claimed in claim 1 in which the semiconducTor body is bounded on at least one side by a contact layer which consists of one of the two compounds and connects the parts of the relative compound in the body together.
Claim 4
Dependent Claim
27 words
A semiconductor device as claimed in claim 1 wherein the elements are Sn and Se and the compounds consists of tin selenide (SnSe) and tin diselenide (SnSe2).
References Cited (Backward Citations)
US3057762A
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US3171068A
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US3249473A
Cited
US3129343A
Cited
US3351502A
Cited
US3416047A
Cited
US3439240A
Cited
US3578507A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |