US3146514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of attaching leads to semiconductor devices
Assignee: Clevite Corp
•
Filing: 1961-03-06
•
Granted: 1964-09-01
•
Expires: 1981-03-06
Abstract
No abstract record available.
Inventors
- 👤 Horst W Knau
- 👤 Georges R Calon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:29
CPC Classifications
H; H10; H10P; H10P95/00; H10P14/00; H10P14/40; H10P14/46; H10W; H10W99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A METHOD OF FABRICATING SEMICONDUCTOR DEVICES HAVING RECTIFYING JUNCTIONS, COMPRISING: SUBJECTING AN ASSEMBLY, CONSISTING OF A SEMICONDUCTOR HAVING A SURFACE INCLUDING A JUNCTION-FORMING ALLOYED REGION AND OTHER UNALLOYED REGIONS, TO AN ETCHING TREATMENT ADAPTED TO REMOVE SURFACE OXIDES; IMMEDIATELY THEREAFTER, PLACING THE ENTIRE SURFACE OF THE ASSEMBLY IN CONTACT WITH AN ELECTROLESS PLATING SOLUTION FOR A PERIOD OF TIME SUFFICIENT TO EFFECT DEPOSITION OF A SUBSTANTIALLY CONTINUOUS COHERENT AND COHESIVE PLATING ON SAID ALLOYED REGION WITH CONCOMITANT DEPOSITION OF A THINNER PLATING OF NICKEL ON SAID UNALLOYED REGIONS; SOLDERING LEAD WIRES TO THE PLATED
Claim 2
Independent Claim
94 words
A METHOD OF FABRICATING SEMICONDUCTOR DEVICES HAVING RECTIFYING JUNCTIONS, COMPRISING: SUBJECTING AN ASSEMBLY, CONSISTING OF A SEMICONDUCTOR HAVING A SURFACE INCLUDING A JUNCTION-FORMING ALLOYED REGION AND OTHER UNALLOYED REGIONS, TO AN ETCHING TREATMENT ADAPTED TO REMOVE SURFACE OXIDES; IMMEDIATELY THEREAFTER, PLACING THE ENTIRE SURFACE OF THE ASSEMBLY IN CONTACT WITH AN ELECTROLESS PLATING SOLUTION FOR A PERIOD OF TIME SUFFICIENT TO EFFECT DEPOSITION OF A SUBSTANTIALLY CONTINUOUS COHERENT AND COHESIVE PLATING ON SAID ALLOYED REGION WITH CONCOMITANT DEPOSITION OF A THINNER PLATING OF NICKEL ON SAID UNALLOYED REGIONS; SOLDERING LEAD WIRES TO THE PLATED
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |