US3740276A
Expired / Lapsed
US
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Multi-component semiconductor network and method for making same
Assignee: Texas Instruments Inc
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Filing: 1970-08-24
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Granted: 1973-06-19
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Expires: 1990-08-24
Abstract
Abstract VARIOUS COMPONENTS OF THE NETWORK ENABLING HIGH SWITCHING SPEEDS. A PROCESS IS DISCLOSED FOR FABRICATING A MULTI-COMPONENT NETWORK UTILIZING A BODY OF HIGH RESISTIVITY SEMICONDUCTOR MATERIAL. THE PROCESS INCLUDES SELECTIVELY ETCHING THE SEMICONDUCTOR SUBSTRATE AND REFORMING IT BY EPITEXIAL DEPOSITION OF SEMICONDUCTOR MATERIAL HAVING DIFFERENT IMPURITY CONCETRATION OR CONDUCTIVITY TYPE. THE PROCESS PROVIDES IMPROVED ISOLATION JUNCTIONS BETWEEN THE
Inventors
- 👤 K Blan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:50
CPC Classifications
H; H10; H10P; H10P50/00; H10P50/20; H10P50/24; H10P50/242; H10D; H10D84/00; H10D84/01; H10D84/0112; H10D84/02; H10D84/03; H10D84/038; H10P14/00; H10P14/20; H10P14/29; H10P14/2901; H10P14/2902; H10P14/2905; H10P14/34; H10P14/3402; H10P14/3404; H10P14/3411; H10P14/3438; H10P14/3441; H10P14/3442; H10P14/3444; H10W; H10W10/00; H10W10/01; H10W10/031; H10W10/30; Y; Y10; Y10S; Y10S148/00; Y10S148/05; Y10S148/051; Y10S148/085
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |