US3328210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating semiconductor device by ionic bombardment
Assignee: North American Aviation Corp
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Filing: 1964-10-26
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Granted: 1967-06-27
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Expires: 1984-10-26
Abstract
No abstract record available.
Inventors
- 👤 James O Mccaldin
- 👤 Alois E Widmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:57
CPC Classifications
H; H10; H10P; H10P30/00; H10P30/40; H10D; H10D64/00; H10D64/60; H10D64/66; H10D64/68; Y; Y10; Y10S; Y10S148/00; Y10S148/053; Y10S438/00; Y10S438/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A METHOD OF PERMANENTLY INDUCING A CHANGE IN THE ELECTRICAL CHARACTERISTICS OF A PORTION OF A SEMICONDUCTOR HAVING A PORTION THEREBY COVERED BY A DIELECTRIC LAYER COMPRISING THE STEPS OF INTRODUCING ONLY INTO SAID DIELECTRIC LAYER AT LEAST ONE SPACE CHARGE INDUCING ION, SAID SPACE CHARGE INDUCING ION BEING SELECTED FROM THE CLASS CONSISTING OF NA, K, RB, CS, F, CL, BR,AND I, THE NUMBER OF IONS INTRODUCED BEING OF SUCH QUANTITY TO INDUCE A SPACE CHARGE IN AT LEAST A PORTION OF SAID SEMICONDUCTOR SUBJACENT SAID DIELECTRIC LAYER OF A MAGNITUDE ADEQUATE TO PRODUCE A CHANGE IN THE ELECTRICAL CONDUCTIVITY OF SAID PORTION.
Claim 2
Independent Claim
104 words
A METHOD OF PERMANENTLY INDUCING A CHANGE IN THE ELECTRICAL CHARACTERISTICS OF A PORTION OF A SEMICONDUCTOR HAVING A PORTION THEREBY COVERED BY A DIELECTRIC LAYER COMPRISING THE STEPS OF INTRODUCING ONLY INTO SAID DIELECTRIC LAYER AT LEAST ONE SPACE CHARGE INDUCING ION, SAID SPACE CHARGE INDUCING ION BEING SELECTED FROM THE CLASS CONSISTING OF NA, K, RB, CS, F, CL, BR,AND I, THE NUMBER OF IONS INTRODUCED BEING OF SUCH QUANTITY TO INDUCE A SPACE CHARGE IN AT LEAST A PORTION OF SAID SEMICONDUCTOR SUBJACENT SAID DIELECTRIC LAYER OF A MAGNITUDE ADEQUATE TO PRODUCE A CHANGE IN THE ELECTRICAL CONDUCTIVITY OF SAID PORTION.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |