Patent US3030194A successfully refreshed from Google Patents.
US3030194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing of semiconductor devices
Assignee: Siemens Schuckertwerke AG
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Filing: 1954-02-11
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Granted: 1962-04-17
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Expires: 1974-02-11
Abstract
No abstract record available.
Inventors
- 👤 Emeis Reimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:17
CPC Classifications
C; C30; C30B; C30B13/00; C30B13/28; C30B13/16; C30B13/26; C30B13/32; C30B15/00; C30B15/002; C30B15/02; C30B15/30; Y; Y10; Y10S; Y10S117/00; Y10S117/901; Y10S117/91; Y10S117/917; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1032; Y10T117/1036; Y10T117/1076
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
THE METHOD OF PROCESSING AN ELONGATED PIECE OF CRYSTALLINE SEMICONDUCTOR MATERIAL, COMPRISING HEATING A CROSS-SECTIONAL ZONE OF SAID PIECE OF MATERIAL TO A TEMPERATURE HIGH ENOUGH FOR LIQUEFACTION THEREOF, MOVING SAID ZONE-HEATING AXIALLY WITH RESPECT TO SAID PIECE OF MATERIAL, WHILE SIMULTEANEOUSLY REDUCING THE CROSS-SECTIONAL DIAMETER OF SUBSTANTIALLY THE INTIRE PROCESSED PIECE BY CONTINUOUSLY MOVING THE ENDS OF SAID PIECE RELATIVELY AWAY FROM EACH OTHER.
Claim 2
Independent Claim
65 words
THE METHOD OF PROCESSING AN ELONGATED PIECE OF CRYSTALLINE SEMICONDUCTOR MATERIAL, COMPRISING HEATING A CROSS-SECTIONAL ZONE OF SAID PIECE OF MATERIAL TO A TEMPERATURE HIGH ENOUGH FOR LIQUEFACTION THEREOF, MOVING SAID ZONE-HEATING AXIALLY WITH RESPECT TO SAID PIECE OF MATERIAL, WHILE SIMULTEANEOUSLY REDUCING THE CROSS-SECTIONAL DIAMETER OF SUBSTANTIALLY THE INTIRE PROCESSED PIECE BY CONTINUOUSLY MOVING THE ENDS OF SAID PIECE RELATIVELY AWAY FROM EACH OTHER.
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |