US3211595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
P-type alloy bonding of semiconductors using a boron-gold alloy
Assignee: Raytheon Co
•
Filing: 1959-11-02
•
Granted: 1965-10-12
•
Expires: 1979-11-02
Abstract
No abstract record available.
Inventors
- 👤 Bernstein Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:19
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/02; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3013; C22C5/00; C22C5/02; C30; C30B; C30B31/00; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
THE METHOD OF DOPING SEMICONDUCTOR MATERIAL OF THE CLASS CONSISTING OF SILICON AND GERMANIUM WITH BORON, WHICH COMPRISES: FORMING A MIXTURE OF BORON AND GOLD; DISSOLVING THE BORON INTO THE GOLD BY HEATING THE MIXTURE TO TEMPERATURES AT WHICH BORON IS SOLUBLE IN SAID GOLD; COOLING SAID SOLUTION OF BORON IN SAID GOLD TO FORM AN ALLOY HAVING A BORON PHASE DISPERSED IN A MATRIX OF SAID GOLD; REHEATING SAID ALLOY IN CONTACT WITH SEMICONDUCTOR MATERIAL TO A TEMPERATURE SUFFICIENT TO DISSOLVE SEMICONDUCTOR MATERIAL THEREIN; AND COOLING TO RECRYSTALLIZE SEMICONDUCTOR MATERIAL WITH BORON INJECTED THEREINTO FROM SAID ALLOY AS A DOPANT.
Claim 2
Independent Claim
101 words
THE METHOD OF DOPING SEMICONDUCTOR MATERIAL OF THE CLASS CONSISTING OF SILICON AND GERMANIUM WITH BORON, WHICH COMPRISES: FORMING A MIXTURE OF BORON AND GOLD; DISSOLVING THE BORON INTO THE GOLD BY HEATING THE MIXTURE TO TEMPERATURES AT WHICH BORON IS SOLUBLE IN SAID GOLD; COOLING SAID SOLUTION OF BORON IN SAID GOLD TO FORM AN ALLOY HAVING A BORON PHASE DISPERSED IN A MATRIX OF SAID GOLD; REHEATING SAID ALLOY IN CONTACT WITH SEMICONDUCTOR MATERIAL TO A TEMPERATURE SUFFICIENT TO DISSOLVE SEMICONDUCTOR MATERIAL THEREIN; AND COOLING TO RECRYSTALLIZE SEMICONDUCTOR MATERIAL WITH BORON INJECTED THEREINTO FROM SAID ALLOY AS A DOPANT.
References Cited (Backward Citations)
US1577995A
Cited
US2556921A
Cited
US2596454A
Cited
US2701326A
Cited
GB714965A
Cited
US2736847A
Cited
US2789068A
Cited
US2780543A
Cited
US2829999A
Cited
US2985550A
Cited
US2937962A
Cited
US2992947A
Cited
US3009840A
Cited
US2947925A
Cited
US2937114A
Cited
US3068127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |