Patent US3189798A successfully refreshed from Google Patents.
US3189798A
Expired / Lapsed
US
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Monolithic semiconductor device and method of preparing same
Assignee: Westinghouse Electric Corp
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Filing: 1960-11-29
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Granted: 1965-06-15
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Expires: 1980-11-29
Abstract
No abstract record available.
Inventors
- 👤 Charles E Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:30
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/60; H10D84/611; H10D84/613; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A MONOLITHIC SEMICONDUCTOR DEVICE COMPRISING A THIN BODY OF SEMICONDUCTOR MATERIAL HAVING FIRST AND SECOND OPPOSED FLAT FACES AND MADE UP OF A PLURALITY OF LAYERS OF DIFFERENT CONDUCTIVITY TYPES COOPERATING TO FORM AT LEAST ONE P-N JUNCTION, THE LAYERS BEING GENERALLY PARALLEL TO THE FLAT FACES, AT LEAST ONE SLOT EXTENDING ENTIRELY THROUGH THE BODY BETWEEN THE FLAT FACES AND THROUGH THE P-N JUNCTION, A FIRST TROUGH EXTENDING ONLY PARTIALLY THROUGH SAID BODY OF SEMICONDUCTOR MATERIAL INWARDLY FROM SAID FIRST FLAT FACE, SAID FIRST TROUGH BEING DEEP ENOUGH TO PENETRATE AT LEAST THROUGH THE LAYER LYING IMMEDIATELY ADJACENT SAID FIRST FLAT FACE AND HAVING ONE END TERMINATING
Claim 2
Dependent Claim
108 words
A MONOLITHIC SEMICONDUCTOR DEVICE COMPRISING A THIN BODY OF SEMICONDUCTOR MATERIAL HAVING FIRST AND SECOND OPPOSED FLAT FACES AND MADE UP OF A PLURALITY OF LAYERS OF DIFFERENT CONDUCTIVITY TYPES COOPERATING TO FORM AT LEAST ONE P-N JUNCTION, THE LAYERS BEING GENERALLY PARALLEL TO THE FLAT FACES, AT LEAST ONE SLOT EXTENDING ENTIRELY THROUGH THE BODY BETWEEN THE FLAT FACES AND THROUGH THE P-N JUNCTION, A FIRST TROUGH EXTENDING ONLY PARTIALLY THROUGH SAID BODY OF SEMICONDUCTOR MATERIAL INWARDLY FROM SAID FIRST FLAT FACE, SAID FIRST TROUGH BEING DEEP ENOUGH TO PENETRATE AT LEAST THROUGH THE LAYER LYING IMMEDIATELY ADJACENT SAID FIRST FLAT FACE AND HAVING ONE END TERMINATING
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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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |