US3030704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making non-rectifying contacts to silicon carbide
Assignee: General Electric Co
•
Filing: 1957-08-16
•
Granted: 1962-04-24
•
Expires: 1977-08-16
Abstract
No abstract record available.
Inventors
- 👤 Robert N Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:14
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/80; F; F27; F27D; F27D11/00; F27D11/02; H01; H01C; H01C1/00; H01C1/14; H10D64/00; H10D64/01; H10D64/011; H10D64/0111; H10D64/0115; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10P; H10P10/00; H10P95/00; H10P95/50; H10P95/80; Y; Y10; Y10S; Y10S228/00; Y10S228/903; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
THE METHOD OF FORMING NON-RECTIFYING CONTACTS HAVING GOOD MECHANICAL AND ELECTRICAL PROPERTIES TO SILICON CARBIDE BODIES WHICH METHOD COMPRISED, PLACING A BODY OF SILICON CARBIDE WHICH METHOD COMPRISES, PLACING A BODY OF SILICON CARBIDE IN INTIMATE CONTACT WITH A BODY OF TUNGSTEN, MOLYBDENUM AND ALLOYS THEREBETWEEN IN AN ATMOSPHERE WHICH IS NON-REACTIVE WITH SAID BODY AND SAID CONTACT MATERIAL AT THE TEMPERATURE UTILIZED, HEATING SAID BODIED TO A TEMPERATURE SUFFICIENT TO CAUSE WETTING AND FUSION THEREBETWEEN BUT BELOW THE MELTING POINT OF EITHER OF SAID MATERIALS AND THEREAFTER ALLOWING SAID BODIES TO COOL.
Claim 2
Independent Claim
93 words
THE METHOD OF FORMING NON-RECTIFYING CONTACTS HAVING GOOD MECHANICAL AND ELECTRICAL PROPERTIES TO SILICON CARBIDE BODIES WHICH METHOD COMPRISED, PLACING A BODY OF SILICON CARBIDE WHICH METHOD COMPRISES, PLACING A BODY OF SILICON CARBIDE IN INTIMATE CONTACT WITH A BODY OF TUNGSTEN, MOLYBDENUM AND ALLOYS THEREBETWEEN IN AN ATMOSPHERE WHICH IS NON-REACTIVE WITH SAID BODY AND SAID CONTACT MATERIAL AT THE TEMPERATURE UTILIZED, HEATING SAID BODIED TO A TEMPERATURE SUFFICIENT TO CAUSE WETTING AND FUSION THEREBETWEEN BUT BELOW THE MELTING POINT OF EITHER OF SAID MATERIALS AND THEREAFTER ALLOWING SAID BODIES TO COOL.
References Cited (Backward Citations)
US898979A
Cited
US1645523A
Cited
US1994632A
Cited
US2431975A
Cited
US2652621A
Cited
US2627110A
Cited
US2609428A
Cited
US2609429A
Cited
US2775023A
Cited
US2776509A
Cited
GB760246A
Cited
US2763822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |