US3810794A
Expired / Lapsed
US
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Preparation of gap-si heterojunction by liquid phase epitaxy
Assignee: Varian Medical Systems Inc
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Filing: 1970-09-24
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Granted: 1974-05-14
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Expires: 1990-09-24
Abstract
Abstract A SATURATED MOLTEN SOLUTION OF GAP AND SI IN A SITUABLE SOLVENT (PB,SN) WAS PREPARED. THE MOLTEN, SATURATED SOLUTION WAS BROUGHT INTO CONTACT WITH A SI SINGLE CRYSTAL SUBSTRATE AND COOLED, CAUSING THE GAP TO FORM AN EPITAXIAL LAYER ON THE SI SURFACE. THE CRYSTAL LATTICE STRUCTURE AND DIMENSIONS OF SI AND GAP CRYSTALS ARE VERY SIMILAR. THE PREFERRED PHYSICAL PROPERTIES OF THE SOLVENT ARE: A RELATIVELY HIGH SOLUBILITY FOR GAP; A RELATIVELY LOW SOLUBILITY FOR SI; AND A RELATIVELY LOW SOLUBILITY OF THE SELECTED SOLVENT IN THE EPITAXIALLY GROWN GAP.
Inventors
- 👤 G Antypas
- 👤 F Rosztoczy
- 👤 W Stein
- 👤 Szeremy S Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:23
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/20; H10P14/29; H10P14/2901; H10P14/2902; H10P14/2905; H10P14/26; H10P14/263; H10P14/265; H10P14/34; H10P14/3402; H10P14/3414; H10P14/3418; Y; Y10; Y10S; Y10S148/00; Y10S148/059; Y10S148/065; Y10S148/072; Y10S148/107; Y10S148/119; Y10S438/00; Y10S438/933
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |