Patent US3226609A successfully refreshed from Google Patents.
US3226609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High conduction semiconductor diode
Assignee: GTE Sylvania Inc
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Filing: 1960-10-25
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Granted: 1965-12-28
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Expires: 1980-10-25
Abstract
No abstract record available.
Inventors
- 👤 William F Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:13
CPC Classifications
H; H10; H10P; H10P95/00; H10D; H10D99/00; H10W; H10W72/00; H10W72/50; H10W72/531; H10W72/536
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A SEMICONDUCTOR DEVICE COMPRISING A MONOCRYSTALLINE BODY OF SEMICONDUCTOR MATERIAL HAVING A FIRST ZONE OF ONE CONDUCTIVITY TYPE WITH FIRST AND SECOND PLANAR SURFACES ON OPPOSITE SIDES THEREOF, SECOND AND THIRD ZONES OF THE OPPOSITE CONDUCTIVITY TYPE DISPOSED IN THE FIRST ZONE ON EACH OF SAID SIDES RESPECTIVELY AND FORMING TWO SPACED PN JUNCTIONS WITH THE FIRST ZONE, A FIRST ELECTRODE MAKING OHMIC CONTACT SOLELY TO ONE OF SAID ZONES OF THE OPPOSITE CONDUCTIVITY TYPE, AND A SECOND ELECTRODE MAKING OHMIC CONTACT TO BOTH SAID FIRST ZONE AND THE OTHER OF SAID ZONES OF THE OPPOSITE CONDUCTIVITY TYPE.
Claim 2
Dependent Claim
98 words
A SEMICONDUCTOR DEVICE COMPRISING A MONOCRYSTALLINE BODY OF SEMICONDUCTOR MATERIAL HAVING A FIRST ZONE OF ONE CONDUCTIVITY TYPE WITH FIRST AND SECOND PLANAR SURFACES ON OPPOSITE SIDES THEREOF, SECOND AND THIRD ZONES OF THE OPPOSITE CONDUCTIVITY TYPE DISPOSED IN THE FIRST ZONE ON EACH OF SAID SIDES RESPECTIVELY AND FORMING TWO SPACED PN JUNCTIONS WITH THE FIRST ZONE, A FIRST ELECTRODE MAKING OHMIC CONTACT SOLELY TO ONE OF SAID ZONES OF THE OPPOSITE CONDUCTIVITY TYPE, AND A SECOND ELECTRODE MAKING OHMIC CONTACT TO BOTH SAID FIRST ZONE AND THE OTHER OF SAID ZONES OF THE OPPOSITE CONDUCTIVITY TYPE.
References Cited (Backward Citations)
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US2875505A
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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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |