Patent US3369159A successfully refreshed from Google Patents.
US3369159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed transistors and methods of making same
Assignee: Texas Instruments Inc
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Filing: 1964-12-21
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Granted: 1968-02-13
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Yro T Sihvonen
- 👤 Sidney G Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:19
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/01; H10D84/0123; H10D84/0126; H10D84/02; H10D84/03; H10D84/038; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A FIELD EFFECT TRANSISTOR COMPRISING A PRINTED POLYCRYSTALLINE SEMICONDUCTOR LAYER, A PRINTED SOURCE CONTACT OVERLYING AND INTIMATELY ENGAGING SAID SEMICONDUCTOR LAYER, A PRINTED DRAIN CONTACT OVERLYING AND INTIMATELY ENGAGING SAID SEMICONDUCTOR LAYER AND SPACED APART FROM SAID CONTACT, A PRINTED DIELECTRIC OVERLYING SAID SEMICONDUCTOR LAYER AND PORTIONS OF SAID CONTACTS, SAID DIELECTRIC HAVING A DIELECTRIC CONSTANT NO LESS THAN ON THE ORDER OF ABOUT 10**3 AT THE OPERATING FREQUENCY OF SAID TRANSISTOR AND COMPRISED OF A MAJOR PROPORTION OF A SODIUM SILICATE COMPOUND, AND A PRINTED GATE ELECTRODE OVERLYING SAID DIELECTRIC AND LOCATED BETWEEN SAID SOURCE AND DRAIN CONTACTS.
Claim 2
Dependent Claim
99 words
A FIELD EFFECT TRANSISTOR COMPRISING A PRINTED POLYCRYSTALLINE SEMICONDUCTOR LAYER, A PRINTED SOURCE CONTACT OVERLYING AND INTIMATELY ENGAGING SAID SEMICONDUCTOR LAYER, A PRINTED DRAIN CONTACT OVERLYING AND INTIMATELY ENGAGING SAID SEMICONDUCTOR LAYER AND SPACED APART FROM SAID CONTACT, A PRINTED DIELECTRIC OVERLYING SAID SEMICONDUCTOR LAYER AND PORTIONS OF SAID CONTACTS, SAID DIELECTRIC HAVING A DIELECTRIC CONSTANT NO LESS THAN ON THE ORDER OF ABOUT 10**3 AT THE OPERATING FREQUENCY OF SAID TRANSISTOR AND COMPRISED OF A MAJOR PROPORTION OF A SODIUM SILICATE COMPOUND, AND A PRINTED GATE ELECTRODE OVERLYING SAID DIELECTRIC AND LOCATED BETWEEN SAID SOURCE AND DRAIN CONTACTS.
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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |