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US3257631A Expired / Lapsed US ⏱️ 0.0 years remaining

Solid-state semiconductor network

Assignee: Texas Instruments Inc
•
Filing: 1960-05-02
•
Granted: 1966-06-21
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Expires: 1980-05-02
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Abstract

No abstract record available.

Inventors

  • 👤 Arthur D Evans

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 03:19
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/40; H10D84/401; H10D84/403; H10D84/409; H03; H03F; H03F3/00; H03F3/34; H03F3/343; H03F3/347; H10D30/00; H10D30/80; H10D30/83

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 134 words
A SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE COMPRISING A WAFER OF MONOCRYSTALLINE SEMICONDUCTOR MATERIAL, A PLAURALITY OF CIRCUIT ELEMENTS DEFINED IN THE WAFER ADJACENT ONE MAJOR FACE THEREOF, SAID CIRCUIT ELEMENTS INCLUDING A UNIPOLAR FIELD-EFFECT DEVICE HAVING A THIN CHANNEL REGION AND A GATE REGION PROVIDED BY CONTIGUOUS LAYERS OF SEMICONDUCTOR MATERIAL OF OPPOSITE CONDUCTIVITYTYPES, THE REGION SEPARATING THE CHANNEL REGION INTO A SOURCE AND A DRAIN WHICH ARE CONNECTED TOGETHER WITHIN THE WAFER ONLY BY A THIN PORTION OF THE CHANNEL REGION UNDERLYING THE GATE REGION, VOLTAGE REFERENCE MEANS DEFINED IN THE WAFER ADJACENT SAID ONE MAJOR FACE BY CONTIGUOUS REGIONS OF OPPOSITE CONDUCTIVITY-TYPES, AND MEANS CONNECTING THE VOLTAGE REFERENCE MEANS ACROSS THE SOURCE AND GATE REGION OF THE FIELD-EFFECT DEVICE SO THAT THE CHANNEL REGION OF THE FIELD-EFFECT DEVICE WILL PROVIDE A LARGE RESISTANCE.
Claim 2
Dependent Claim 134 words
A SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE COMPRISING A WAFER OF MONOCRYSTALLINE SEMICONDUCTOR MATERIAL, A PLAURALITY OF CIRCUIT ELEMENTS DEFINED IN THE WAFER ADJACENT ONE MAJOR FACE THEREOF, SAID CIRCUIT ELEMENTS INCLUDING A UNIPOLAR FIELD-EFFECT DEVICE HAVING A THIN CHANNEL REGION AND A GATE REGION PROVIDED BY CONTIGUOUS LAYERS OF SEMICONDUCTOR MATERIAL OF OPPOSITE CONDUCTIVITYTYPES, THE REGION SEPARATING THE CHANNEL REGION INTO A SOURCE AND A DRAIN WHICH ARE CONNECTED TOGETHER WITHIN THE WAFER ONLY BY A THIN PORTION OF THE CHANNEL REGION UNDERLYING THE GATE REGION, VOLTAGE REFERENCE MEANS DEFINED IN THE WAFER ADJACENT SAID ONE MAJOR FACE BY CONTIGUOUS REGIONS OF OPPOSITE CONDUCTIVITY-TYPES, AND MEANS CONNECTING THE VOLTAGE REFERENCE MEANS ACROSS THE SOURCE AND GATE REGION OF THE FIELD-EFFECT DEVICE SO THAT THE CHANNEL REGION OF THE FIELD-EFFECT DEVICE WILL PROVIDE A LARGE RESISTANCE.

References Cited (Backward Citations)

US2544211A Cited
US2744970A Cited
US2805397A Cited
US2754431A Cited
US2984752A Cited
US2900531A Cited
US3022472A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-06-20 1969-12-20 1970-06-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-06-20 1973-12-20 1974-06-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-06-20 1977-12-20 1978-06-21 $7700.00 Window Closed / Lapsed

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