US3303059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of improving electrical characteristics of semiconductor devices and products so produced
Assignee: International Business Machines Corp
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Filing: 1964-06-29
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Granted: 1967-02-07
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Donald R Kerr
- 👤 Junction Hopewell
- 👤 Donald R Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:02
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/40; H10D84/401; H10D84/403; H10D84/60; H10D84/611; H10D84/613; H10D99/00; H10W; H10W20/00; H10W20/40; H10W74/00; H10W74/40; H10W74/43; Y; Y10; Y10S; Y10S438/00; Y10S438/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
THE METHOD OF IMPROVING AT LEAST ONE ELECTRICAL CHARACTERISTIC OF AN ELECTRICAL DEVICE WHICH INCLUDES A SEMICONDUCTOR MEMBER AND AN INSULATING LAYER SELECTED FROM THE CLASS CONSISTING OF GLASS AND SILICON OXIDE CONTIGUOUS THEREWITH COMPRISING: HEATING SAID MEMBER AND SAID LAYER TO A TEMPERATURE AT LEAST 50*C. HIGHER THAN THE OPENING TEMPERATURE RANGE OF SAID DEVICE; APPLYING A POTENTIAL TO AN ELECTRODE ON THE INSULATING LAYER TO PRODUCE AT SAID HIGHER TEMPERATURE IN SAID LAYER AN ELECTRIC FIELD OF AN INTENSITY EFFECTIVE PERMANENTLY TO FIX OVER SAID OPERATING RANGE THE SURFACE POTENTIAL OF SAID MEMBER ADJACENT THE INTERFACE OF SAID MEMBER AND SAID LAYER; AND COOLING SAID MEMBER AND SAID LAYER TO AT MOST A TEMPERATURE IN SAID OPERATING RANGE OF THE DEVICE.
Claim 2
Independent Claim
123 words
THE METHOD OF IMPROVING AT LEAST ONE ELECTRICAL CHARACTERISTIC OF AN ELECTRICAL DEVICE WHICH INCLUDES A SEMICONDUCTOR MEMBER AND AN INSULATING LAYER SELECTED FROM THE CLASS CONSISTING OF GLASS AND SILICON OXIDE CONTIGUOUS THEREWITH COMPRISING: HEATING SAID MEMBER AND SAID LAYER TO A TEMPERATURE AT LEAST 50*C. HIGHER THAN THE OPENING TEMPERATURE RANGE OF SAID DEVICE; APPLYING A POTENTIAL TO AN ELECTRODE ON THE INSULATING LAYER TO PRODUCE AT SAID HIGHER TEMPERATURE IN SAID LAYER AN ELECTRIC FIELD OF AN INTENSITY EFFECTIVE PERMANENTLY TO FIX OVER SAID OPERATING RANGE THE SURFACE POTENTIAL OF SAID MEMBER ADJACENT THE INTERFACE OF SAID MEMBER AND SAID LAYER; AND COOLING SAID MEMBER AND SAID LAYER TO AT MOST A TEMPERATURE IN SAID OPERATING RANGE OF THE DEVICE.
References Cited (Backward Citations)
US2725317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |