US3097977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices
Assignee: RCA Corp
•
Filing: 1961-06-01
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Granted: 1963-07-16
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Expires: 1981-06-01
Abstract
No abstract record available.
Inventors
- 👤 James A Amick
- 👤 Glenn W Cullen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:36
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/02; C23C8/00; C23C8/80; H; H10; H10W; H10W74/00; H10W74/40; H10W74/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A METHOD OF CONTROLLING THE SURFACE CHARACTERISTICS OF A CRYSTALLINE SEMICONDUCTIVE WAFER, SAID WAFER CONSISTING OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF GERMANIUM, SILICON, AND GERMANIUM-SILICON ALLOYS, SAID METHOD COMPRISING THE STEPS OF HALOGENATING THE SURFACE OF SAID WAFER, AND THEN TREATING SAID WAFER WITH A REACTIVE ALKYLATING AGENT.
Claim 2
Independent Claim
51 words
A METHOD OF CONTROLLING THE SURFACE CHARACTERISTICS OF A CRYSTALLINE SEMICONDUCTIVE WAFER, SAID WAFER CONSISTING OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF GERMANIUM, SILICON, AND GERMANIUM-SILICON ALLOYS, SAID METHOD COMPRISING THE STEPS OF HALOGENATING THE SURFACE OF SAID WAFER, AND THEN TREATING SAID WAFER WITH A REACTIVE ALKYLATING AGENT.
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |