US3138743A Expired / Lapsed US ⏱️ 0.0 years remaining

Miniaturized electronic circuits

Assignee: Texas Instruments Inc

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Filing: 1959-02-06

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Granted: 1964-06-23

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Expires: 1979-02-06

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Abstract

Abstract 945,749. Semi-conductor devices. TEXAS INSTRUMENTS Inc. Feb. 2, 1960 [Feb. 6, 1959], No. 32744/63. Divided out of 945,734. Heading H1K. The subject matter of this Specification is included in Specification 945,734 from which the present Specification is divided but the claims relate to a device comprising a semi-conductor body with three superposed regions of alternate conductivity types forming a pair of PN junctions extending to a surface of the body and there defining two enclosed areas one within the other, with an insulating oxide of a semi-conductor covering selected parts of said surface, first and second ohmic contacts secured to said surface on opposite sides of the inner PN junction and a third ohmic contact secured to the third region. Specifications 945,737, 945,738, 945,739, 945,740, 945,741, 945,742, 945,743, 945,744, 945,745, 945,746, 945,747 and 945,748 also are referred to.

Inventors

👤 Jack S Kilby

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-10-22 21:37

CPC Classifications

H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H10; H10D; H10D1/00; H10D1/40; H10D1/43; H10D1/60; H10D1/62; H10D1/64; H10D1/66; H10D84/00; H10D84/01; H10D84/0112; H10D84/0123; H10D84/0126; H10D84/0158; H10D84/02; H10D84/03; H10D84/038; H10D84/201; H10D84/204; H10D84/60; H10D84/611; H10D84/613; H10D99/00; H10P; H10P10/00; H10P14/00; H10P14/60; H10P14/63; H10P14/6302; H10P14/6304; H10P14/6306; H10P14/6308; H10P14/6309; H10P50/00; H10P50/60; H10P50/61; H10P50/613; H10P76/00; H10P76/40; H10P95/00; H10W; H10W10/00; H10W10/01; H10W10/031; H10W10/30; H10W20/00; H10W20/40; H10W20/497; H10W74/00; H10W74/40; H10W74/43; H10W72/00; H10W72/071; H10W72/075; H10W72/07551; H10W72/07554; H10W72/50; H10W72/531; H10W72/536; H10W72/541; H10W72/547; H10W72/5473; H10W72/551; H10W72/552; H10W72/5522; Y; Y10; Y10S; Y10S438/00; Y10S438/98

Claims Analysis

Total Claims: 2

Claim 1

Independent Claim 121 words

IN AN INTEGRATED CIRCUIT HAVING A PLURALITY OF ELECTRICAL CIRCUIT COMPONENTS IN A WAFER OF SINGLE-CRYSTAL SEMICONDUCTOR MATERIAL, A PLURALITY OF JUNCTION TRANSISTORS DEFINED IN THE WAFER, EACH TRANSISTOR INCLUDING THIN LAYERS OF SEMICONDUCTOR MATERIAL OF OPPOSITE CONDUCTIVITY-TYPES ADJACENT ONE MAJOR FACE OF THE WAFER PROVIDING A BASE AND AN EMITTER REGION WHICH OVERLIE A COLLECTOR REGION, THE BASE-EMITTER AND BASE-COLLECTOR JUNCTIONS OF EACH OF SAID TRANSISTORS EXTENDING WHOLLY TO SAID ONE MAJOR FACE, A PLURALITY OF THIN ELONGATED REGIONS OF THE WAFER EXHIBITING SUBSTANTIAL RESISTANCE TO PROVIDE SEMICONDUCTOR RESISTORS, THE ELONGATED REGIONS BEING SPACED ON SAID ONE MAJOR FACE FROM THE TRANSISTORS, AND CONDUCTIVE MEANS CONNECTING SELECTED ONES OF THE ELONGATED REGIONS TO REGIONS OF SELECTED ONES OF THE TRANSISTORS.

Claim 2

Dependent Claim 121 words

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1967-06-23	1967-12-23	1968-06-23	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1971-06-23	1971-12-23	1972-06-23	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1975-06-23	1975-12-23	1976-06-23	$7700.00	Window Closed / Lapsed

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