US3055099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of contacting semi-conductor devices
Assignee: BBC Brown Boveri AG Germany
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Filing: 1960-10-03
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Granted: 1962-09-25
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Expires: 1980-10-03
Abstract
No abstract record available.
Inventors
- 👤 Plust Heinz-Gunther
- 👤 Weisshaar Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:09
CPC Classifications
H; H10; H10P; H10P95/00; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/26; B23K35/268; H01; H01B; H01B1/00; H01B1/02; H10W; H10W99/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
METHOD OF CONTACTING A SEMI-CONDUCTOR DEVICE COMWITH GOLD AS THE ALLOYING SUBSTANCE, COMPRISING THE STEPS OF APPLYING A LEAD-CADMIUM ALLOY WITH AN EUTECTIC COMPOSITION AS SOLDER TO THE GOLD-ALLOYED SIDE OF THE SEMICONDUCTOR BODY AND TO THE COPPER LEAD WIRE TO BE CONNECTED WITH IT, AND HEATING THE ASSEMBLY TO A TEMPERATURE OF BETWEEN 250 AND 300*C.
Claim 2
Dependent Claim
57 words
METHOD OF CONTACTING A SEMI-CONDUCTOR DEVICE COMWITH GOLD AS THE ALLOYING SUBSTANCE, COMPRISING THE STEPS OF APPLYING A LEAD-CADMIUM ALLOY WITH AN EUTECTIC COMPOSITION AS SOLDER TO THE GOLD-ALLOYED SIDE OF THE SEMICONDUCTOR BODY AND TO THE COPPER LEAD WIRE TO BE CONNECTED WITH IT, AND HEATING THE ASSEMBLY TO A TEMPERATURE OF BETWEEN 250 AND 300*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) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |