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US3239374A Expired / Lapsed US ⏱️ 0.0 years remaining

Thin film circuitry

Assignee: International Business Machines Corp
•
Filing: 1962-06-28
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Granted: 1966-03-08
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Expires: 1982-06-28
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Abstract

No abstract record available.

Inventors

  • 👤 Ames Irving
  • 👤 Lawrence V Gregor
  • 👤 Alan L Leiner
  • 👤 Arnold M Toxen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 02:12
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/04; C23C14/042; C23C14/02; C23C14/024; C23C14/025; C23C14/044; C23C14/58; C23C14/5806; C23C14/5873; C23F; C23F1/00; C23F1/02; G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; H; H01; H01B; H01B1/00; H05; H05K; H05K3/00; H05K3/10; H05K3/14; H05K3/146; H10; H10N; H10N60/00; H10N60/01; H10N60/30; H10N60/35; H10N97/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 131 words
THE METHOD OF FABRICATING A NARROW THIN FILM CONDUCTOR COMPRISING THE STEPS OF, DEPOSITING A THIN LAYER OF GOLD NUCLEATING MATERIAL HAVING A TAPERED EDGE, A THICKNESS OF SAID NUCLEATING MATERIAL WITHIN A CRITICAL RANGE BETWEEN APPROXIMATELY 5 A. AND 10 A. BEING REQUIRED TO NUCLEATE A GIVEN QUANTITY OF INDIUM SO AS TO FORM A CONTINUOUS FILM, THE THICKNESS OF SAID NUCLEATING LAYER BEING IN EXCESS OF SAID CRITICAL RANGE WHEREBY PORTIONS OF SAID TAPERED EDGE ARE WITHIN SAID CRITICAL RANGE, AND DEPOSITING SAID GIVEN QUANTITY OF INDIUM AT LEAST OVER SAID TAPERED EDGE TO FORM A CONTINUOUS FILM OVER PORTIONS OF SAID TAPERED EDGE WITHIN SAID CRITICAL RANGE, SAID GIVEN QUANTITY OF INDIUM DEPOSITED OVER REMAINING PORTIONS OF SAID NUCLEATING LAYER AGGLOMERATING SO AS TO FORM A NONCONTINUOUS FILM.
Claim 2
Independent Claim 131 words
THE METHOD OF FABRICATING A NARROW THIN FILM CONDUCTOR COMPRISING THE STEPS OF, DEPOSITING A THIN LAYER OF GOLD NUCLEATING MATERIAL HAVING A TAPERED EDGE, A THICKNESS OF SAID NUCLEATING MATERIAL WITHIN A CRITICAL RANGE BETWEEN APPROXIMATELY 5 A. AND 10 A. BEING REQUIRED TO NUCLEATE A GIVEN QUANTITY OF INDIUM SO AS TO FORM A CONTINUOUS FILM, THE THICKNESS OF SAID NUCLEATING LAYER BEING IN EXCESS OF SAID CRITICAL RANGE WHEREBY PORTIONS OF SAID TAPERED EDGE ARE WITHIN SAID CRITICAL RANGE, AND DEPOSITING SAID GIVEN QUANTITY OF INDIUM AT LEAST OVER SAID TAPERED EDGE TO FORM A CONTINUOUS FILM OVER PORTIONS OF SAID TAPERED EDGE WITHIN SAID CRITICAL RANGE, SAID GIVEN QUANTITY OF INDIUM DEPOSITED OVER REMAINING PORTIONS OF SAID NUCLEATING LAYER AGGLOMERATING SO AS TO FORM A NONCONTINUOUS FILM.

References Cited (Backward Citations)

US2455513A Cited
US2815462A Cited
US2948261A Cited
US3091556A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-03-07 1969-09-06 1970-03-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-03-07 1973-09-06 1974-03-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-03-07 1977-09-06 1978-03-08 $7700.00 Window Closed / Lapsed

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