US3770606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Schottky barrier diodes as impedance elements and method of making same
Assignee: AT&T Inc
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Filing: 1970-11-17
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Granted: 1973-11-06
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Expires: 1990-11-17
Abstract
Abstract The reverse characteristic of Schottky barrier diodes provides easily fabricated, small area, high impedance elements for micropower circuits. Advantageously, the diodes are fabricated within semiconductive integrated circuit arrays by forming rhodium silicide on relatively high resistivity P-type silicon. Such diodes are particularly useful in the loads of flip-flops used as cells of a semiconductor memory.
Inventors
- 👤 M Lepselter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:45
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/41; G11C11/411; G11C11/4113; H03K3/01; H03K3/012; H10; H10D; H10D84/00; H10D84/60; H10D84/611; H10D84/613; H10D84/617; H10D99/00; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/049; Y10S148/085; Y10S148/139
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A method as recited in claim 1 wherein the material for the uniform layer is selected from the group consisting of rhodium, platinum, palladium, zirconium, and the alloys of these metals.
Claim 2
Dependent Claim
21 words
A method as recited in claim 2 wherein said metal is rhodium and said elevated temperature is between 450* and 750*C.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |