Patent US4914501A successfully refreshed from Google Patents.
Patent US3076104A successfully refreshed from Google Patents.
US3076104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mesa diode with guarded junction and reverse bias means for leakage control
Assignee: Texas Instruments Inc
•
Filing: 1960-11-29
•
Granted: 1963-01-29
•
Expires: 1980-11-29
Abstract
No abstract record available.
Inventors
- 👤 Donald P Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:14
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; H10D1/00; H10D1/40; H10D48/00; H10D48/30; H10D48/38; H10D99/00; H10P; H10P95/00; H10P95/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A SEMICONDUCTOR DEVICE COMPRISING TWO CONTIGUOUS REGIONS OF OPPOSITE CONDUCTIVITY TYPES DEFINING A P-N JUNCTION THEREBETWEEN, AND AN ANNULAR GROOVE DEFINE IN ONE OF THE SAID REGIONS PENETRATING THE ADJACENT SAID JUNCTION BUT NOT INTERSECTING SAID JUNCTION, SAID GROOVE HAVING A DIAMETER MUCH LESS THAN THE LATERAL DIMENSIONS OF SAID JUNCTION AND DIVIDING SAID ONE REGION INTO AN ACTIVE PART WITH THE GROOVE CONSTITUTING THE PERIMETER THEREOF AND AN INACTIVE PART OUTSIDE THE GROOVE.
Claim 2
Dependent Claim
74 words
A SEMICONDUCTOR DEVICE COMPRISING TWO CONTIGUOUS REGIONS OF OPPOSITE CONDUCTIVITY TYPES DEFINING A P-N JUNCTION THEREBETWEEN, AND AN ANNULAR GROOVE DEFINE IN ONE OF THE SAID REGIONS PENETRATING THE ADJACENT SAID JUNCTION BUT NOT INTERSECTING SAID JUNCTION, SAID GROOVE HAVING A DIAMETER MUCH LESS THAN THE LATERAL DIMENSIONS OF SAID JUNCTION AND DIVIDING SAID ONE REGION INTO AN ACTIVE PART WITH THE GROOVE CONSTITUTING THE PERIMETER THEREOF AND AN INACTIVE PART OUTSIDE THE GROOVE.
References Cited (Backward Citations)
US2883609A
Cited
US2894152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |