US2823148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for removing portions of semiconductor device electrodes
Assignee: RCA Corp
•
Filing: 1953-03-02
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Granted: 1958-02-11
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Expires: 1973-03-02
Abstract
No abstract record available.
Inventors
- 👤 Jacques I Pankove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:05
CPC Classifications
C; C30; C30B; C30B31/00; C30B31/04; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD FOR MAKING A SEMI-CONDUCTOR DEVICE COMPRISING INTIMATELY JOINING A METAL SELECTED FROM THE GROUP CONSISTING OF INDIUM, GALLIU, BISMUTH, SILVER, GOLD, ZINC, AND COPPER TO A SUIRFACE OF A SEMI- CONDUCTING BODY SELECTED FROM THE GROUP CONSISTING OF GERMANUM AND SOLICON TO FORM A P-N RECTIFYING JUNCTION IN SAID BODY BY ALLOYING OF A PORTION OF SAID METAL INTO SAID BODY, AND REMOVING SUBSTANTIALLY ALL OTHER PORTIONS OF SAID METAL FROM SAID BODY BY DISSOLVING METAL IN MERCURY.
Claim 2
Independent Claim
80 words
A METHOD FOR MAKING A SEMI-CONDUCTOR DEVICE COMPRISING INTIMATELY JOINING A METAL SELECTED FROM THE GROUP CONSISTING OF INDIUM, GALLIU, BISMUTH, SILVER, GOLD, ZINC, AND COPPER TO A SUIRFACE OF A SEMI- CONDUCTING BODY SELECTED FROM THE GROUP CONSISTING OF GERMANUM AND SOLICON TO FORM A P-N RECTIFYING JUNCTION IN SAID BODY BY ALLOYING OF A PORTION OF SAID METAL INTO SAID BODY, AND REMOVING SUBSTANTIALLY ALL OTHER PORTIONS OF SAID METAL FROM SAID BODY BY DISSOLVING METAL IN MERCURY.
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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) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |