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US3072514A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of producing semi-conductor electrode systems

Assignee: Koninklijke Philips NV
•
Filing: 1959-01-12
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Granted: 1963-01-08
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Expires: 1979-01-12
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Abstract

No abstract record available.

Inventors

  • 👤 Pieter J W Jochems
  • 👤 Johannes J A P Van Amstel
  • 👤 Herre Rinia

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 18:30
CPC Classifications
H; H10; H10P; H10P95/00; B; B23; B23K; B23K15/00; B23K15/08; H10D; H10D99/00; Y; Y10; Y10S; Y10S438/00; Y10S438/942; Y10S438/944

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 176 words
IN THE MANUFACTURE OF A SEMICONDUCTOR DEVICE COMPRISING PROVIDING A SEMICONDUCTOR BODY HAVING AN ELECTRODE PORTION PROTRUDING FROM THE SURFACE OF THE SEMICONDUCTOR BODY, THE METHOD OF SELECTIVELY REMOVING SURFACE PORTIONS OF THE BODY LEAVING INTACT A SURFACE PORTION ADJACENT THE ELECTRODE, COMPRISING THE STEPS OF COVERING THE SAID SURFACE AND ELECTRODE WITH A MASKING LAYER PROVIDING MEANS CAPABLE OF REMOVING THE MASKING LAYER WHEN CONTACTING SAME, PROJECTING THE SAID REMOVAL MEANS AT THE SURFACE ALONG A DIRECTION AND AT SUCH A LOW ANGLE TO THE SURFACE THAT THE PROTRUDING ELECTRODE PORTION SHADWOS THE ADJACENT PORTION OF THE MASKING LAYER, COEXTENSIVE WITH THE SURFACE PORTION TO REMAIN INTACT, AND PROTECTS IT FROM CONTACT WITH THE REMOVAL MEANS WHILE THE REMAINING UNSHADOWED AND UPROTECTED MASKING LAYER PORTIONS ARE CONTACTED AND REMOVED EXPOSING SURFACE PROTIONS OF THE BODY, AND THEREAFTER SUBBJECTING THE SAID BODY WITH THE MASKED SURFACE PORTION TO A TREATMENT CAPABLE OF REMOVING EXPOSED BODY PROTION TO REMOVE SAID EXPOSED PORTIONS OF THE BODY RESULTING IN A RAISED BODY PORTION ON WHICH IS LOCATED THE ELECTRODE.
Claim 2
Dependent Claim 176 words
IN THE MANUFACTURE OF A SEMICONDUCTOR DEVICE COMPRISING PROVIDING A SEMICONDUCTOR BODY HAVING AN ELECTRODE PORTION PROTRUDING FROM THE SURFACE OF THE SEMICONDUCTOR BODY, THE METHOD OF SELECTIVELY REMOVING SURFACE PORTIONS OF THE BODY LEAVING INTACT A SURFACE PORTION ADJACENT THE ELECTRODE, COMPRISING THE STEPS OF COVERING THE SAID SURFACE AND ELECTRODE WITH A MASKING LAYER PROVIDING MEANS CAPABLE OF REMOVING THE MASKING LAYER WHEN CONTACTING SAME, PROJECTING THE SAID REMOVAL MEANS AT THE SURFACE ALONG A DIRECTION AND AT SUCH A LOW ANGLE TO THE SURFACE THAT THE PROTRUDING ELECTRODE PORTION SHADWOS THE ADJACENT PORTION OF THE MASKING LAYER, COEXTENSIVE WITH THE SURFACE PORTION TO REMAIN INTACT, AND PROTECTS IT FROM CONTACT WITH THE REMOVAL MEANS WHILE THE REMAINING UNSHADOWED AND UPROTECTED MASKING LAYER PORTIONS ARE CONTACTED AND REMOVED EXPOSING SURFACE PROTIONS OF THE BODY, AND THEREAFTER SUBBJECTING THE SAID BODY WITH THE MASKED SURFACE PORTION TO A TREATMENT CAPABLE OF REMOVING EXPOSED BODY PROTION TO REMOVE SAID EXPOSED PORTIONS OF THE BODY RESULTING IN A RAISED BODY PORTION ON WHICH IS LOCATED THE ELECTRODE.

References Cited (Backward Citations)

US2261988A Cited
US2705765A Cited
US2799637A Cited
US2813782A Cited
US2926076A Cited
US2910634A Cited
US3012921A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-01-07 1966-07-09 1967-01-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-01-07 1970-07-09 1971-01-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-01-07 1974-07-09 1975-01-08 $7700.00 Window Closed / Lapsed

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