US3348962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for preparing single crystal thin films
Assignee: Raytheon Co
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Filing: 1964-08-13
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Granted: 1967-10-24
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Expires: 1984-08-13
Abstract
No abstract record available.
Inventors
- 👤 Jack J Grossman
- 👤 Braunstein Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:26
CPC Classifications
C; C30; C30B; C30B23/00; C30B23/02; C30B23/04; Y; Y10; Y10S; Y10S148/00; Y10S148/071; Y10S148/106; Y10S148/122; Y10S148/15; Y10S148/152
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A METHOD FOR PREPARING SINGLE CRYSTAL THIN FILMS WHICH COMPRISES THE STEPS OF PLACING A FIXED MASK HAVING AN ELONGATE OPEING THERETHROUGH INCLUDED A TAPERED PORTION WITH AN ACUTE ANGLE UPON A SUITABLE SUBSTRATE, PLACING A MOVABLE MASK HAVING AN OPENING THERETHROUGH OVER THE FIXED MASK SO THAT ONLY THE ACUTE ANGLE OF THE OPENING OF THE FIXED MASK IS EXPOSED, VAPOR DEPOSITING CRYSTALLINE MATERIAL UPOJ THE ACUTE ANGLE-EXPOSED PORTION OF THE SUBSTRATE, AND CONTINUOUSLY MOVING THE MOVABLE MASK RELATIVE TO THE FIXED MASK TO GRADUALLY EXPOSE MORE OF THE SUBSTRATE WHILE CONTINUOUSLY VAPOR DEPOSITING CRYSTALLINE MATERIAL UPON THE EXPOSES SUBSTRATE AND RESULTING DEPOSITED CRYSTALLINE MATERIAL.
Claim 2
Independent Claim
106 words
A METHOD FOR PREPARING SINGLE CRYSTAL THIN FILMS WHICH COMPRISES THE STEPS OF PLACING A FIXED MASK HAVING AN ELONGATE OPEING THERETHROUGH INCLUDED A TAPERED PORTION WITH AN ACUTE ANGLE UPON A SUITABLE SUBSTRATE, PLACING A MOVABLE MASK HAVING AN OPENING THERETHROUGH OVER THE FIXED MASK SO THAT ONLY THE ACUTE ANGLE OF THE OPENING OF THE FIXED MASK IS EXPOSED, VAPOR DEPOSITING CRYSTALLINE MATERIAL UPOJ THE ACUTE ANGLE-EXPOSED PORTION OF THE SUBSTRATE, AND CONTINUOUSLY MOVING THE MOVABLE MASK RELATIVE TO THE FIXED MASK TO GRADUALLY EXPOSE MORE OF THE SUBSTRATE WHILE CONTINUOUSLY VAPOR DEPOSITING CRYSTALLINE MATERIAL UPON THE EXPOSES SUBSTRATE AND RESULTING DEPOSITED CRYSTALLINE MATERIAL.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |