US3067114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductive devices and methods for the fabrication thereof
Assignee: Lanteris Space LLC
•
Filing: 1954-12-03
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Granted: 1962-12-04
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Expires: 1974-12-03
Abstract
No abstract record available.
Inventors
- 👤 John W Tiley
- 👤 Richard A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:43
CPC Classifications
H; H10; H10P; H10P50/00; H10P50/60; H10P50/61; H10P50/613; C; C25; C25D; C25D5/00; C25D5/08; C25F; C25F3/00; C25F3/02; C25F3/12; C25F3/14; H10P14/00; H10P14/40; H10P14/46; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN THE ART OF FABRICATING SEMICONDUCTOR DEVICE, THE METHOD WHICH COMPRISES THE STEPS PF DIRECTING AGAINST A REGION OF SAID BODY A JET OF AN ELECTROLYTIC ETCHANT, MAINTAINING SAID BODY AT A POTENTIAL POSITIVE WITH RESPECT THAT OF SAID JET UNTIL A DEPRESSION IS FORMED IN SAID REGION OF SAID BODY, TERMINATING SAID ETCHING PRIOR TO COMPLETE PERFORATION OF SAID BODY BY SAID JET, APPLYING AN IMPURITY SUBSTANCE TO THE BOTTOM OF SAID DEPRESSION, AND HEATING SAID SUBSTANCE TO PRODUCE A RECTIFYING JUNCTION IN SAID BODY.
Claim 2
Dependent Claim
86 words
IN THE ART OF FABRICATING SEMICONDUCTOR DEVICE, THE METHOD WHICH COMPRISES THE STEPS PF DIRECTING AGAINST A REGION OF SAID BODY A JET OF AN ELECTROLYTIC ETCHANT, MAINTAINING SAID BODY AT A POTENTIAL POSITIVE WITH RESPECT THAT OF SAID JET UNTIL A DEPRESSION IS FORMED IN SAID REGION OF SAID BODY, TERMINATING SAID ETCHING PRIOR TO COMPLETE PERFORATION OF SAID BODY BY SAID JET, APPLYING AN IMPURITY SUBSTANCE TO THE BOTTOM OF SAID DEPRESSION, AND HEATING SAID SUBSTANCE TO PRODUCE A RECTIFYING JUNCTION IN SAID BODY.
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Cited
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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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |