US3222630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum-germanium contact
Assignee: Texas Instruments Inc
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Filing: 1961-06-26
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Granted: 1965-12-07
•
Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Lee Van Gorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:33
CPC Classifications
H; H10; H10P; H10P95/00; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/28; C; C22; C22C; C22C11/00; C22C28/00; H01; H01B; H01B1/00; H10W; H10W99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A METHOD FOR PRODUCING SEMICONDUCTOR CONTACTS HAVING HIGH ELECTRICAL CONDUCTIVITY COMPRISING COATING A SELECTED AREA OF THE SURFACE OF THE SEMICONDUCTOR BODY WITH A CONTACT MATERIAL COMPRISING AN ALLOY CONTAINING 52% TO 56% BY WEIGHT GERMANIUM, THE REMAINDER ALUMINUM, HEATING THE SEMICONDUCTOR DEVICE AND CONTACT MATERIAL TO APPROXIMATELY 350*C., AND PRESSING A GOLD LEAD WIRE AGAINST SAID CONTACT MATERIAL CAUSING SAID GOLD LEAD WIRE TO ALLOY WITH THE GERMANIUM IN SAID CONTACT MATERIAL.
Claim 2
Independent Claim
73 words
A METHOD FOR PRODUCING SEMICONDUCTOR CONTACTS HAVING HIGH ELECTRICAL CONDUCTIVITY COMPRISING COATING A SELECTED AREA OF THE SURFACE OF THE SEMICONDUCTOR BODY WITH A CONTACT MATERIAL COMPRISING AN ALLOY CONTAINING 52% TO 56% BY WEIGHT GERMANIUM, THE REMAINDER ALUMINUM, HEATING THE SEMICONDUCTOR DEVICE AND CONTACT MATERIAL TO APPROXIMATELY 350*C., AND PRESSING A GOLD LEAD WIRE AGAINST SAID CONTACT MATERIAL CAUSING SAID GOLD LEAD WIRE TO ALLOY WITH THE GERMANIUM IN SAID CONTACT MATERIAL.
References Cited (Backward Citations)
CA537909A
Cited
US2905873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |