US2822308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor p-n junction units and method of making the same
Assignee: General Electric Co
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Filing: 1955-03-29
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Granted: 1958-02-04
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Expires: 1975-03-29
Abstract
No abstract record available.
Inventors
- 👤 Robert N Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:24
CPC Classifications
C; C30; C30B; C30B15/00; C30B15/02; C30B15/04; H; H10; H10D; H10D48/00; H10D48/30; H10D48/32; H10D48/34; H10D48/345; C30B29/00; C30B29/02; C30B29/06; Y; Y10; Y10S; Y10S438/00; Y10S438/914; Y10S438/925; Y10S438/955
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE METHOD OF MAKING SEMICONDUCTOR P-N JUNCTION BODIES, WHICH METHOD COMPRISES PREPARING A MELT CONSISTING OF A HIGH PURITY SEMICONDUCTOR, A TRACE OF A DONOR ACTIVATOR IMPURITY FOR THE SEMICONDUCTOR AND A TRACE OF AN ACCEPTOR ACTIVATOR IMPURITY FOR THE SEMICONDUCTOR, THE IMPURITY TRACES BEING INCLUDED IN THE MELT IN EFFECTIVE EQUIVALENT AMOUNTS SUFFICIENT TO PROVIDE INTRINSIC-TYPE SEMICONDUCTOR IN A SEMICONDUCTOR CRYSTAL GROWN FROM THE MELT AT A CONSTANT GROWTH RATE AND EACH HAVING A DIFFERENT RATE OF SEGREGATION COEFFICIENT VARIA-
Claim 2
Independent Claim
81 words
THE METHOD OF MAKING SEMICONDUCTOR P-N JUNCTION BODIES, WHICH METHOD COMPRISES PREPARING A MELT CONSISTING OF A HIGH PURITY SEMICONDUCTOR, A TRACE OF A DONOR ACTIVATOR IMPURITY FOR THE SEMICONDUCTOR AND A TRACE OF AN ACCEPTOR ACTIVATOR IMPURITY FOR THE SEMICONDUCTOR, THE IMPURITY TRACES BEING INCLUDED IN THE MELT IN EFFECTIVE EQUIVALENT AMOUNTS SUFFICIENT TO PROVIDE INTRINSIC-TYPE SEMICONDUCTOR IN A SEMICONDUCTOR CRYSTAL GROWN FROM THE MELT AT A CONSTANT GROWTH RATE AND EACH HAVING A DIFFERENT RATE OF SEGREGATION COEFFICIENT VARIA-
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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |