US3370980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for orienting single crystal films on polycrystalline substrates
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1963-08-19
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Granted: 1968-02-27
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Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 Gerald S Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:23
CPC Classifications
C; C30; C30B; C30B23/00; C30B23/02; C23; C23C; C23C14/00; C23C14/0005; H; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S117/00; Y10S117/915; Y10S148/00; Y10S148/051; Y10S148/072; Y10S148/122; Y10S148/135; Y10S148/142
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A METHOD FOR PRODUCING A SINGLE CRYSTAL FILM OF A DESIRED MATERIAL ON A POLYCRYSTALLINE SUBSTRATE, WHICH COMPRISES THE STEP OF: PROVIDING A SINGLE CRYSTAL SUBSTRATE, EPITAXIALLY DEPOSITING SAID DESIRED MATERIAL ON SAID SINGLE CRYSTAL SUBSTRATE TO FORM SAID SINGLE CRYSTAL FILM, DEPOSITING A POLYCRYSTALLINE FILM ON SAID SINGLE CRYSTAL FILM TO FORM SAID POLYCRYSTALLINE SUBSTRATE, AND REMOVING SAID SINGLE CRYSTAL SUBSTRATE FROM SAID SINGLE CRYSTAL FILM.
Claim 2
Independent Claim
67 words
A METHOD FOR PRODUCING A SINGLE CRYSTAL FILM OF A DESIRED MATERIAL ON A POLYCRYSTALLINE SUBSTRATE, WHICH COMPRISES THE STEP OF: PROVIDING A SINGLE CRYSTAL SUBSTRATE, EPITAXIALLY DEPOSITING SAID DESIRED MATERIAL ON SAID SINGLE CRYSTAL SUBSTRATE TO FORM SAID SINGLE CRYSTAL FILM, DEPOSITING A POLYCRYSTALLINE FILM ON SAID SINGLE CRYSTAL FILM TO FORM SAID POLYCRYSTALLINE SUBSTRATE, AND REMOVING SAID SINGLE CRYSTAL SUBSTRATE FROM SAID SINGLE CRYSTAL FILM.
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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |