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US3554832A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for handling and mounting semiconductor dice

Assignee: RCA Corp
•
Filing: 1968-05-29
•
Granted: 1971-01-12
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Expires: 1988-05-29
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Abstract

Abstract A SCRIBED SEMICONDUCTOR WAFER IS DETACHABLY SECURED TO A PLASTIC FILM. THE WAFER IS CRACKED ALONG THE SCRIBED LINES INTO INDIVIDUAL DICE WHICH REMAIN SECURED TO THE FILM. THE FILM IS STRETCHED TO PROVIDE A SPACED ARRAY OF THE DICE. EACH DIE IS THEN MOUNTED TO A HEADER BY POSITIONING THE PLASTIC FILM SO THAT THE DIE IS ADJACENT THE HEADER. A ROD IS PUSHED AGAINST THE PLASTIC FILM OPPOSITE THE DIE TO DEPRESS THE FILM AND BRING THE DIE INTO CONTACT WITH THE HEADER. WHEN THE DIE CONTACTS THE HEADER, IT ADHERES TO THE HEADER AND DETACHES FROM THE PLASTIC FILM.

Inventors

  • 👤 Adam Fischer Jr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 10:30
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0442; H10P72/50; H10P72/70; H10P72/74; H10P72/7402; H10P72/7412; H10P72/7414; H10P72/7416; H10P72/742; H10P72/7428; H10W; H10W72/00; H10W72/01; H10W72/013; H10W72/01331; H10W72/071; H10W72/0711; H10W72/07141; H10W72/072; H10W72/07202; H10W72/07204; H10W72/07231; H10W72/07232; H10W72/07236; H10W72/073; H10W72/07331; H10W72/07337; H10W72/20; H10W72/241; H10W72/30; H10W72/351; H10W72/353; H10W72/354; H10W72/50; H10W72/551; H10W72/552; H10W72/5522; H10W72/59; H10W72/851; H10W72/874; H10W72/884; H10W90/00; H10W90/701; H10W90/721; H10W90/724; H10W90/731; H10W90/734; H10W90/751; H10W90/753; H10W90/754; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1064

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) 1974-01-11 1974-07-13 1975-01-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-11 1978-07-13 1979-01-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-11 1982-07-13 1983-01-12 $7700.00 Window Closed / Lapsed

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