US3271635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices with silver-gold lead wires attached to aluminum contacts
Assignee: RCA Corp
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Filing: 1963-05-06
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Granted: 1966-09-06
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Expires: 1983-05-06
Abstract
No abstract record available.
Inventors
- 👤 Wagner Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:41
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/071; H10W72/075; H10W72/50; H10W72/07531; H10W72/07532; H10W72/531; H10W72/5363; H10W72/551; H10W72/552; H10W72/5522; H10W72/5524; H10W72/59; H10W72/90; H10W72/951; H10W72/952
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A SEMICONDUCTOR DEVICE COMPRISING A CRYSTALLINE SEMICONDUCTIVE WAFER; AT LEAST ONE METALLIC CONTACT COMPRISING ALUMINUM ON A PORTION OF SAID WAFER; AND AN ELECTRICAL LEAD WIRE ATTACHED TO SAID CONTACT, SAID WIRE CONSISTING ESSENTIALLY OF 5 TO 25 WEIGHT PERCENT SILVER, BALANCE GOLD.
Claim 2
Dependent Claim
43 words
A SEMICONDUCTOR DEVICE COMPRISING A CRYSTALLINE SEMICONDUCTIVE WAFER; AT LEAST ONE METALLIC CONTACT COMPRISING ALUMINUM ON A PORTION OF SAID WAFER; AND AN ELECTRICAL LEAD WIRE ATTACHED TO SAID CONTACT, SAID WIRE CONSISTING ESSENTIALLY OF 5 TO 25 WEIGHT PERCENT SILVER, BALANCE GOLD.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |