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US3687743A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of manufacturing a semiconductor device consisting of a ternary compound of znsias on a gaas substrate

Assignee: US Philips Corp
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Filing: 1970-07-13
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Granted: 1972-08-29
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Expires: 1990-07-13
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Abstract

Abstract A METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE COMPRISING A SEMICONDUCTOR PORTION OF A COMPOUND OF THE TYPE AIIBIVC2V OR A MIXED CRYSTAL THEREOF. AII BEING ONE OF THE ELEMENTS BERYLLIUM, MAGNESIUM, ZINC, CADMIUM OR MERCURY OF THE SECOND GROUP, BIV BEING ONE OF THE ELEMENTS OF THE FOURTH GROUP INCLUDING SILICON, GERMANIUM, OR TIN, AND CV BEING ONE OF THE ELEMENTS OF THE FIFTH GROUP OF THE PERIODIC SYSTEM INCLUDING NITROGEN, PHOSPHORUS, ARSENIC OR ANTIMONY. A COMPOUND OF THIS TYPE IS EPITAXIALLY DEPOSITED ON A SUBSTRRATE CONSISTING OF A COMPOUND OF THE YPE AIIIBV OR MIXED CRYSTAL FROM A MELT CONTAINING THE COMPONENTS OF THE FIRST-MENTIONED COMPOUND OR MIXED CRYSTALS THEREOF.

Inventors

  • 👤 Jean-Marc Le Duc

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 01:49
CPC Classifications
H; H10; H10D; H10D99/00; H10H; H10H20/00; H10H20/80; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/063; Y10S148/107; Y10S252/00; Y10S252/95; Y10S438/00; Y10S438/93

Claims Analysis

Total Claims: 0
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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) 1975-08-29 1976-02-28 1976-08-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-08-29 1980-02-28 1980-08-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-08-29 1984-02-28 1984-08-29 $7700.00 Window Closed / Lapsed

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