US2956913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor and method of making same
Assignee: Texas Instruments Inc
•
Filing: 1958-11-20
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Granted: 1960-10-18
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Expires: 1978-11-20
Abstract
No abstract record available.
Inventors
- 👤 Milton K Mack
- 👤 Jr Elmer A Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:03
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; H10D10/00; H10D99/00; H10P; H10P32/00; H10P32/10; H10P32/12; H10P32/17; H10P32/171; H10P95/00; Y; Y10; Y10S; Y10S438/00; Y10S438/914; Y10S438/919
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A METHOD OF MAKING A TRANSISTOR DEVICE COMPRISING THE STEPS OF DIFFUSING IMPURITY ATOMS OF ONE CONDUCTIVITY-PRODUCING TYPE INTO A REGION OF A BODY OF SEMICONDUCTOR MATERIAL CONTAINING IMPURITY ATOMS OF OPPOSITE CONDUCTIVITY-PRODUCING TYPE, DIFFUSING IMPURITY ATOMS OF SAID OPPOSITE CONDUCTIVITY-PRODUCING TYPE INTO A PORTION OF SAID REGION TO CONDENSATE SAME, AND ALLOYING A MATERIAL CONTAINING IMPURITY ATOMS OF SAID OPPOSITE CONDUCTIVITY-PRODUCING TYPE WITH SAID COMPENSATED PORTION.
Claim 2
Independent Claim
67 words
A METHOD OF MAKING A TRANSISTOR DEVICE COMPRISING THE STEPS OF DIFFUSING IMPURITY ATOMS OF ONE CONDUCTIVITY-PRODUCING TYPE INTO A REGION OF A BODY OF SEMICONDUCTOR MATERIAL CONTAINING IMPURITY ATOMS OF OPPOSITE CONDUCTIVITY-PRODUCING TYPE, DIFFUSING IMPURITY ATOMS OF SAID OPPOSITE CONDUCTIVITY-PRODUCING TYPE INTO A PORTION OF SAID REGION TO CONDENSATE SAME, AND ALLOYING A MATERIAL CONTAINING IMPURITY ATOMS OF SAID OPPOSITE CONDUCTIVITY-PRODUCING TYPE WITH SAID COMPENSATED PORTION.
References Cited (Backward Citations)
US2843511A
Cited
US2861018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |