US3293002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing tape-shaped semiconductor bodies
Assignee: Siemens and Halske AG
•
Filing: 1965-10-19
•
Granted: 1966-12-20
•
Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Spielmann Werner
- 👤 Heywang Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:29
CPC Classifications
C; C30; C30B; C30B15/00; C30B15/14; C30B29/00; C30B29/60; Y; Y10; Y10S; Y10S117/00; Y10S117/901; Y10S117/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE PROCESS OF PRODUCING A LONG, PARTICULARLY TAPESHAPED, DENDRITIC SEMICONDUCTOR BODY, WHICH COMPRISES THE STEPS OF PRODUCING A CRUCILE-DOME-SHAPED MELT OF SEMICONDUCTOR MATERIAL ON TOP OF AN UPERGHT CARRIER OF THE SAME MATERIAL BY HEATING THE TOP OF SAID CARRIER, MAINTAINING A PORTION OF THE MELT ADJACENT SAID CARRIER AT A TEMPERATURE ABOVE THE MELTING POINT OF THEM SEMICONDUCTOR MATERIAL, INSERTING AN ELONGATED DENDRITE CRYSTAL SEED INTO THE BELT, SUPERCOOLING A REGION OF THE MELT AROUND SAID SEED, PULLING SAID SEED FROM SAID MELT WITH GROWING DENDRITE ADHERING THERETO IN THE FORM OF A TAPE HAVING BROAD AND NARROW SIDES, PROVIDING AND MAINTAINING A COOLING EFFECT ON THE NARROW SIDES OF THE DENDRITE TAPE IN THE REGION OF THE INTERFACE SUBSTANTIALLY GREATER THAN THE COOLING EFFECT ADJACENT THE BROAD SIDES OF SAID TAPE.
Claim 2
Dependent Claim
133 words
THE PROCESS OF PRODUCING A LONG, PARTICULARLY TAPESHAPED, DENDRITIC SEMICONDUCTOR BODY, WHICH COMPRISES THE STEPS OF PRODUCING A CRUCILE-DOME-SHAPED MELT OF SEMICONDUCTOR MATERIAL ON TOP OF AN UPERGHT CARRIER OF THE SAME MATERIAL BY HEATING THE TOP OF SAID CARRIER, MAINTAINING A PORTION OF THE MELT ADJACENT SAID CARRIER AT A TEMPERATURE ABOVE THE MELTING POINT OF THEM SEMICONDUCTOR MATERIAL, INSERTING AN ELONGATED DENDRITE CRYSTAL SEED INTO THE BELT, SUPERCOOLING A REGION OF THE MELT AROUND SAID SEED, PULLING SAID SEED FROM SAID MELT WITH GROWING DENDRITE ADHERING THERETO IN THE FORM OF A TAPE HAVING BROAD AND NARROW SIDES, PROVIDING AND MAINTAINING A COOLING EFFECT ON THE NARROW SIDES OF THE DENDRITE TAPE IN THE REGION OF THE INTERFACE SUBSTANTIALLY GREATER THAN THE COOLING EFFECT ADJACENT THE BROAD SIDES OF SAID TAPE.
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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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |