US2861909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices
Assignee: RCA Corp
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Filing: 1955-04-25
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Granted: 1958-11-25
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Expires: 1975-04-25
Abstract
No abstract record available.
Inventors
- 👤 Sidney G Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:01
CPC Classifications
H; H10; H10D; H10D10/00; C; C30; C30B; C30B31/00; C30B31/06; H10D64/00; H10D64/20; H10D99/00; H10F; H10F99/00; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A SEMICONDUCTOR DEVICE COMPRISING A BODY OF SEMICONDUCTOR MATERIAL OF ONE TYPE OF CONDUCTIVITY, A GRID OF SEMICONDUCTOR MATERIAL HAVING A CONDUCTIVITY-TYPE OPPOSITE TO SAID ONE TYPE IN RECTIFYING CONTACT WITH SAID BODY, SAID GRID COMPRISING A PLURALITY OF MUTUALLY PERPENDICULAR LINES, ANY TWO ADJACENT ELEMENTS OF SAID GRID BEING SPACED APART A DISTANCE OF THE ORDER OF TWICE THE DIFFUSION LENGTH OF MINORITY CHARGE CARRIERS IN SAID BODY, AND A SURFACE INVERSION LAYER ON SAID BODY BETWEEN SAID LINES HAVING SAID OPPOSITE TYPE CONDUCTIVITY AND BEING SUFFICIENTLY THIN TO PERMIT PENETRATION OF LIGHT THERETHROUGH.
Claim 2
Dependent Claim
95 words
A SEMICONDUCTOR DEVICE COMPRISING A BODY OF SEMICONDUCTOR MATERIAL OF ONE TYPE OF CONDUCTIVITY, A GRID OF SEMICONDUCTOR MATERIAL HAVING A CONDUCTIVITY-TYPE OPPOSITE TO SAID ONE TYPE IN RECTIFYING CONTACT WITH SAID BODY, SAID GRID COMPRISING A PLURALITY OF MUTUALLY PERPENDICULAR LINES, ANY TWO ADJACENT ELEMENTS OF SAID GRID BEING SPACED APART A DISTANCE OF THE ORDER OF TWICE THE DIFFUSION LENGTH OF MINORITY CHARGE CARRIERS IN SAID BODY, AND A SURFACE INVERSION LAYER ON SAID BODY BETWEEN SAID LINES HAVING SAID OPPOSITE TYPE CONDUCTIVITY AND BEING SUFFICIENTLY THIN TO PERMIT PENETRATION OF LIGHT THERETHROUGH.
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) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |