US3266952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compound semiconductor devices
Assignee: Raytheon Co
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Filing: 1965-03-25
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Granted: 1966-08-16
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Expires: 1985-03-25
Abstract
No abstract record available.
Inventors
- 👤 James O Mccaldin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:37
CPC Classifications
H; H10; H10D; H10D99/00; C; C30; C30B; C30B29/00; C30B29/10; C30B29/40; C30B31/00; C30B31/06; H10D62/00; H10D62/80; H10D62/85; H10D62/854; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/002; Y10S148/107; Y10S438/00; Y10S438/914; Y10S438/971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A III-V SEMICONDUCTOR CRYSTAL PN JUNCTION DEVICE HAVING A SUBSTANTIALLY UNIFORM IMPURIY CONCENTRATION OF A COLUMN IV ELEMENT, WITH A FIRST REGION HAVING A SUFFICIENT EXCESS OF SAID IMPURITY IN THE III ELEMENT SUBLATTICE TO EXHIBIT N-TYPE CONDUCTIVITY AND HAVING A SECOND REGION WITH A SUFFICIENT EXCESS OF SAID IMPURITY IN THE V ELEMENT SUBLATTICE TO EXHIBIT P-TYPE CONDUCTIVITY, SAID CRYSTALS BEING ESSENTIALLY FREE FROM CONDUCTIVITY TYPE DETERMINING IMPURITIES OF COLUMNS II AND VII IN THE REGION OF THE P-N JUNCTION.
Claim 2
Dependent Claim
81 words
A III-V SEMICONDUCTOR CRYSTAL PN JUNCTION DEVICE HAVING A SUBSTANTIALLY UNIFORM IMPURIY CONCENTRATION OF A COLUMN IV ELEMENT, WITH A FIRST REGION HAVING A SUFFICIENT EXCESS OF SAID IMPURITY IN THE III ELEMENT SUBLATTICE TO EXHIBIT N-TYPE CONDUCTIVITY AND HAVING A SECOND REGION WITH A SUFFICIENT EXCESS OF SAID IMPURITY IN THE V ELEMENT SUBLATTICE TO EXHIBIT P-TYPE CONDUCTIVITY, SAID CRYSTALS BEING ESSENTIALLY FREE FROM CONDUCTIVITY TYPE DETERMINING IMPURITIES OF COLUMNS II AND VII IN THE REGION OF THE P-N JUNCTION.
References Cited (Backward Citations)
US2928761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |