Patent US3765962A successfully refreshed from Google Patents.
US3765962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a charge storage device
Assignee: Philips North America LLC
•
Filing: 1971-11-23
•
Granted: 1973-10-16
•
Expires: 1991-11-23
Abstract
Abstract An improved method for fabricating a vidicon camera tube having a germanium target comprising an array of p-n junctions is described. Each of the p-n junctions is surrounded by an insulating layer whereas the surface of each of the p-n junctions facing an electron beam source is free of insulating materials. The new method of making the germanium vidicon camera tube target results in improved electrical performance for the vidicon camera tube while being economical.
Inventors
- 👤 M Poleshuk
- 👤 A Milch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:06
CPC Classifications
H; H10; H10P; H10P95/00; H01; H01J; H01J9/00; H01J9/20; H10D; H10D99/00; H10P50/00; H10P50/60; H10P50/61; H10P50/613
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
31 words
A method of making a charge storage device according to claim 1, wherein said metal is selected from the group consisting essentially of indium, gallium, thallium, bismuth, silver, gold, and zinc.
Claim 2
Dependent Claim
29 words
A method of making a charge storage device according to claim 1, wherein said wafer consists of a semiconductor material selected from the group consisting of germanium and silicon.
Claim 3
Dependent Claim
32 words
A method of making a charge storage device according to claim 1, further comprising the step of forming moats around each of said diodes and depositing said insulating material in said moats.
Claim 4
Dependent Claim
33 words
A method of making a charge storage device according to claim 4, wherein said moats extend partially beneath respective ones of said diodes, thereby enhancing said step of removing said residual metal portion.
Claim 5
Dependent Claim
24 words
A method of making a charge storage device according to claim 1, further comprising the step of heating said wafer to remove said mercury.
Claim 6
Dependent Claim
22 words
A method of making a charge storage device according to claim 1, wherein said metal is indium and said wafer comprises germanium.
Claim 7
Dependent Claim
20 words
A method of making a charge storage device according to claim 1, wherein said device is a vidicon camera tube.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |