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US3080640A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of manufacturing semi-conductive electrode systems

Assignee: US Philips Corp
•
Filing: 1958-10-31
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Granted: 1963-03-12
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Expires: 1978-10-31
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Abstract

Abstract 899,997. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 3, 1958 [Nov. 5, 1957], No. 35207/58. Class 37. Semiconductor devices are manufactured by securing a semiconductor wafer, to a plurality of supports and then breaking the wafer between the supports to form a plurality of bodies each mounted on a support. The wafer 1 may be secured to the fingers of a comb 3 as in Fig. 2, and emitter 5 and base 6 electrodes provided before cutting the support along lines 8 and breaking the wafer between the fingers to provide a plurality of transistors. Alternatively a wafer 23 may be soldered to the ends of a series of supports clamped together in a stack 20 (Fig. 4), broken along lines 24 to provide a number of elements each comprising a line of support elements which is then broken again to provide the plurality of separate elements each bearing a piece of the wafer. The semi-conductor may consist of germanium and the supports of nickel.

Inventors

  • 👤 Jochems Pieter Johan Wilhelmus

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 11:00
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/30; H10P; H10P95/00; H10W72/01; H10W72/0198; H10W72/071; H10W72/073; H10W72/07331; H10W72/07336; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49121; Y10T29/49787

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 49 words
A METHOD OF MAKING PLURAL SEMICONDUCTOR ASSEMBLIES FOR USE IN SEMI-CONDUCTOR DEVICES, COMPRISING THE STEPS OF PROVIDING A COMB-LIKE ELECTRICALLY CONDUCTIVE SHEET HAVING A PLURALITY OF CARRIER PORTIONS, SOLDERING A THIN FLAT STRIP OF BRITTLE SEMICONDUCTIVE MATERIAL TO THE CARRIER PORTIONS IN SUCH A MANNER THAT THE CARRIERS UNDER-
Claim 2
Independent Claim 49 words
A METHOD OF MAKING PLURAL SEMICONDUCTOR ASSEMBLIES FOR USE IN SEMI-CONDUCTOR DEVICES, COMPRISING THE STEPS OF PROVIDING A COMB-LIKE ELECTRICALLY CONDUCTIVE SHEET HAVING A PLURALITY OF CARRIER PORTIONS, SOLDERING A THIN FLAT STRIP OF BRITTLE SEMICONDUCTIVE MATERIAL TO THE CARRIER PORTIONS IN SUCH A MANNER THAT THE CARRIERS UNDER-

References Cited (Backward Citations)

US2670530A Cited
US2339072A Cited
US2344931A Cited
US2365698A Cited
US2743506A Cited
US2865082A Cited
US2747257A Cited
US2887558A Cited
US2970730A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-03-11 1966-09-10 1967-03-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-03-11 1970-09-10 1971-03-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-03-11 1974-09-10 1975-03-12 $7700.00 Window Closed / Lapsed

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