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US3200468A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and means for contacting and mounting semiconductor devices

Assignee: Clevite Corp
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Filing: 1962-03-16
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Granted: 1965-08-17
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Expires: 1982-03-16
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Abstract

No abstract record available.

Inventors

  • 👤 Dahlberg Reinhard

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 23:56
CPC Classifications
H; H10; H10W; H10W99/00; H10P; H10P95/00; H10W20/00; H10W20/40; H10W74/00; H10W74/40; H10W74/43; H10W76/00; H10W76/10; H10W76/12; H10W76/15; H10W76/157; Y; Y10; Y10S; Y10S438/00; Y10S438/977

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 154 words
A FABRICATION METHOD FOR SEMICONDUCTOR DEVICES COMPRISING: PROVIDING A PLATE OF SEMICONDUCTOR MATERIAL HAVING DEPRESSIONS IN A MAJOR SURFACE SUBDIVIDING SAID SURFACE INTO A PLURALITY OF INDIVIDUAL COPLANAR SURFACE REGIONS DELIMITED AND MUTUALLY SEGREGATED BY SAID DEPRESSIONS AND FURTHER HAVING ON EACH SAID SURFACE REGION AT LEAST ONE OPERATING ELECTRODE; PROVIDING AN INSULATING COATING ON SAID SURFACE REGIONS CONTIGUOUS WITH THE RESPECTIVE ELECTRODES THEREON WHILE LEAVING AT LEAST A SUBSTANTIAL PORTION OF EACH OF SAID ELECTRODES EXPOSED; APPLYING ATOP SAID INSULATING COATING A RESPECTIVE STRIP OF ELECTRICALLY-CONDUCTIVE MATERIAL CONTACTING EACH OF SAID ELECTRODES AND EXTENDING TOWARD AN EDGE OF THE RESPECTIVE SURFACE REGIONS; COATING THE ENTIRE SAID MAJOR SURFACE WITH AN ETCH-RESISTANT MATERIAL; ETCHING THE EXPOSED OPPOSITE SURFACE OF SAID SEMICONDUCTOR PLATE UNTIL THE ETCH-RESISTANT MATERIAL IN SAID DEPRESSIONS IS REACHED, WHEREBY SAID PLATE IS EFFECTIVELY SEPARATED INTO DISCRETE SEGMENTS; AND APPLYING OHMIC CONTACTS TO THE RESPECTIVE ETCHED SURFACES OF SAID DISCRETE PLATE SEGMENTS.
Claim 2
Dependent Claim 154 words
A FABRICATION METHOD FOR SEMICONDUCTOR DEVICES COMPRISING: PROVIDING A PLATE OF SEMICONDUCTOR MATERIAL HAVING DEPRESSIONS IN A MAJOR SURFACE SUBDIVIDING SAID SURFACE INTO A PLURALITY OF INDIVIDUAL COPLANAR SURFACE REGIONS DELIMITED AND MUTUALLY SEGREGATED BY SAID DEPRESSIONS AND FURTHER HAVING ON EACH SAID SURFACE REGION AT LEAST ONE OPERATING ELECTRODE; PROVIDING AN INSULATING COATING ON SAID SURFACE REGIONS CONTIGUOUS WITH THE RESPECTIVE ELECTRODES THEREON WHILE LEAVING AT LEAST A SUBSTANTIAL PORTION OF EACH OF SAID ELECTRODES EXPOSED; APPLYING ATOP SAID INSULATING COATING A RESPECTIVE STRIP OF ELECTRICALLY-CONDUCTIVE MATERIAL CONTACTING EACH OF SAID ELECTRODES AND EXTENDING TOWARD AN EDGE OF THE RESPECTIVE SURFACE REGIONS; COATING THE ENTIRE SAID MAJOR SURFACE WITH AN ETCH-RESISTANT MATERIAL; ETCHING THE EXPOSED OPPOSITE SURFACE OF SAID SEMICONDUCTOR PLATE UNTIL THE ETCH-RESISTANT MATERIAL IN SAID DEPRESSIONS IS REACHED, WHEREBY SAID PLATE IS EFFECTIVELY SEPARATED INTO DISCRETE SEGMENTS; AND APPLYING OHMIC CONTACTS TO THE RESPECTIVE ETCHED SURFACES OF SAID DISCRETE PLATE SEGMENTS.

References Cited (Backward Citations)

US2629802A Cited
US2725505A Cited
US2921362A Cited
US2890395A Cited
US3074145A Cited
US2981877A Cited
US2972092A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-08-16 1969-02-15 1969-08-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-08-16 1973-02-15 1973-08-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-08-16 1977-02-15 1977-08-17 $7700.00 Window Closed / Lapsed

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