Patent US3580732A successfully refreshed from Google Patents.
US3580732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of growing single crystals
Assignee: International Business Machines Corp
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Filing: 1968-01-15
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Granted: 1971-05-25
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Expires: 1988-01-15
Abstract
Abstract A METHOD FOR SELECTIVELY GROWING SINGLE CRYSTAL ISLANDS IN A DIELECTRIC SUBSTRATE AND THE RESULTING STRUCTURE. THE SUBSTRATE HAS RECESSES FORMED IN ITS SURFACE TO RECEIVE BODIES THEREIN. BY APPLYING A TEMPERATURE GRADIENT ACROSS EACH OF THE BODIES THROUGOUT THE ENTIRE HEATING CYCLE, NUCLEATION OCCURS ONLY AT A BOTTOM POINT ON EACH OF THE BODIES WHEN A VAPOR CONTAINING THE MATERIAL TO BE NUCLEATED IS PASSED OVER THE BODIES WITH THE MATERIAL OF THE BODIES BEING MOLTEN.
Inventors
- 👤 A Eugene Blakeslee
- 👤 Thomas F Gukelberger Jr
- 👤 Vincent J Lyons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:47
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/60; C30B11/00; C30B11/04; C30B11/08; C30B11/12; C30B13/00; C30B13/02; C30B13/06; C30B13/08; Y; Y10; Y10S; Y10S148/00; Y10S148/085; Y10S148/15; Y10S148/152; Y10S148/17
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |