Patent US4108773A successfully refreshed from Google Patents.
US2985550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of high temperature alloyed semiconductors
Assignee: Texas Instruments Inc
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Filing: 1957-01-04
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Granted: 1961-05-23
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Expires: 1977-01-04
Abstract
No abstract record available.
Inventors
- 👤 Robert E Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:06
CPC Classifications
H; H10; H10P; H10P95/00; H10P95/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METHOD FOR MAKING A SEMICONDUCTOR DEVICE COMPRISING THE STEPS OF ALLOYING A FIRST PORTION OF A DOT COMPRISED OF INDIUM WITH A WAFER OF N-TYPE SILICON TO FORM A P-N JUNCTION AND ALLOYING LEAD INTO AND THROUGHOUT THE REMAINING PORTION OF SAID DOT EXCLUSIVE OF SAID FIRST PORTION TO RAISE THE MELTING POINT OF THE REMAINING PORTION OF SAID DOT.
Claim 2
Independent Claim
61 words
A METHOD FOR MAKING A SEMICONDUCTOR DEVICE COMPRISING THE STEPS OF ALLOYING A FIRST PORTION OF A DOT COMPRISED OF INDIUM WITH A WAFER OF N-TYPE SILICON TO FORM A P-N JUNCTION AND ALLOYING LEAD INTO AND THROUGHOUT THE REMAINING PORTION OF SAID DOT EXCLUSIVE OF SAID FIRST PORTION TO RAISE THE MELTING POINT OF THE REMAINING PORTION OF SAID DOT.
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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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |