US3982267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pin diode with a thick intrinsic zone and a device comprising such a diode
Assignee: Thales SA
•
Filing: 1975-04-15
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Granted: 1976-09-21
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Expires: 1995-04-15
Abstract
Abstract Collectively manufactured PIN diodes having a thick intrinsic layer are separated from one another by any method other than chemical methods, and have a rough cut lateral surface whose surface condition regulates the leakage resistance to a controllable value, sufficiently low to be measurable.
Inventors
- 👤 Raymond Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:45
CPC Classifications
H; H10; H10D; H10D8/00; H10D8/50
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
71 words
A PIN diode comprising an intrinsic semi-conductor plate having two opposite faces respectively carrying a first and a second semi-conductor layer, highly doped with an impurity of a given type in the case of the first layer and with a impurity of opposite type in the case of the second, and a lateral surface having a degree of roughness giving to the leakage resistance a value, lower than few hundred megohms.
Claim 2
Dependent Claim
71 words
A PIN diode comprising an intrinsic semi-conductor plate having two opposite faces respectively carrying a first and a second semi-conductor layer, highly doped with an impurity of a given type in the case of the first layer and with a impurity of opposite type in the case of the second, and a lateral surface having a degree of roughness giving to the leakage resistance a value, lower than few hundred megohms.
Claim 3
Dependent Claim
63 words
A diode as claimed in claim 1, comprising a mesa portion having flanks extending over the whole thickness of said first layer, and very slightly overlapping that part of said intrinsic semi-conductor plate which is located directly underneath, said flanks being covered with a passivating material and join said lateral surface, co-operating therewith in order to regulate the value of said leakage resistance.
Claim 4
Dependent Claim
13 words
A diode as claimed in claim 1, wherein lateral surface is rough cut.
Claim 5
Dependent Claim
17 words
A diode as claimed in claim 1, that it said two external surfaces carrying respective metal coating.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-21 | 1980-03-22 | 1980-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-21 | 1984-03-22 | 1984-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-21 | 1988-03-22 | 1988-09-21 | $7700.00 | Window Closed / Lapsed |