Patent US2849341A successfully refreshed from Google Patents.
US2849341A
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Method for making semi-conductor devices
Assignee: RCA Corp
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Filing: 1953-05-01
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Granted: 1958-08-26
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Expires: 1973-05-01
Abstract
No abstract record available.
Inventors
- 👤 Dietrich A Jenny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:38
CPC Classifications
C; C30; C30B; C30B31/00; C30B31/04; H; H10; H10P; H10P95/00; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD OF MAKING A SEMI-CONDUCTOR DEVICE COMPRISING PLACING A MOLTEN MASS CONSISTING ESSENTIALLY OF AN IMPURITY MATERIAL CAPABLE OF IMPARTING TO A PARTICULAR SEMI-CONDUCTIVE MATERIAL CHARACTERISTICS OF ONE CONDUCTIVITY TYPE, IN CONTACT WITH A BODY OF SAID SEMI-CONDUCTIVE MATERIAL OF OPPOSITE CONDUCTIVITY TYPE, SAID SEMICONDUCTIVE MATERIAL BEING SELECTED FROM THE GROUP CONSISTINGF OF GERMANIUM AND SILICON, THEREBY TO ALLOY A PORTION OF SAID MASS INTO SAID BODY AND TO FORM A P-N RECTIFYING JUNCTION WITHIN SAID BODY.
Claim 2
Independent Claim
78 words
A METHOD OF MAKING A SEMI-CONDUCTOR DEVICE COMPRISING PLACING A MOLTEN MASS CONSISTING ESSENTIALLY OF AN IMPURITY MATERIAL CAPABLE OF IMPARTING TO A PARTICULAR SEMI-CONDUCTIVE MATERIAL CHARACTERISTICS OF ONE CONDUCTIVITY TYPE, IN CONTACT WITH A BODY OF SAID SEMI-CONDUCTIVE MATERIAL OF OPPOSITE CONDUCTIVITY TYPE, SAID SEMICONDUCTIVE MATERIAL BEING SELECTED FROM THE GROUP CONSISTINGF OF GERMANIUM AND SILICON, THEREBY TO ALLOY A PORTION OF SAID MASS INTO SAID BODY AND TO FORM A P-N RECTIFYING JUNCTION WITHIN SAID BODY.
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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) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |