Stock material or miscellaneous articles – All metal or with adjacent metals – Having marginal feature for indexing or weakened portion for...
Patent
1979-11-05
1981-02-24
McQuade, John
Stock material or miscellaneous articles
All metal or with adjacent metals
Having marginal feature for indexing or weakened portion for...
174 52FP, 339 17CF, 357 70, H01R 900, H01L 2448
Patent
active
042528640
ABSTRACT:
A continuous strip of stamped and formed lead frames for a semi-conductor chip comprises spaced apart parallel carrier strips with the lead frames connected to one of the carrier strips at regularly spaced intervals. Each lead frame comprises a chip supporting portion which is centrally located between the carrier strips, and second arm which extends from the chip support portion towards one of the carrier strips and first and third arms on each side of the chip support portion which extend towards the other carrier strip. Terminal tabs are provided on each of the arms, the first and third tabs on the first and third arms extending parallel to each other towards the other carrier strip and the tab on the second arm extending parallel to the other tabs and towards the one carrier strip. Each lead frame is secured to the one carrier strip by a connection section extending from the second tab. The chip support portion and the first and third arms are additionally supported by a removable support member extending from the other carrier strip.
REFERENCES:
patent: 3426252 (1969-02-01), Lepselter
patent: 3431092 (1969-03-01), Lehner
patent: 3569797 (1971-03-01), Simmons
patent: 3597666 (1971-08-01), Taskovich
patent: 3650232 (1972-03-01), Heinlen
patent: 3727175 (1973-04-01), Grenda
patent: 3735017 (1973-05-01), Manning
patent: 3736367 (1973-05-01), Heinlen
patent: 3821615 (1974-06-01), Nordstrom
patent: 3910671 (1975-10-01), Townsend
patent: 4158745 (1979-06-01), Keller
General Electric Drawing, 118 C 8332.
General Electric Drawing, 138 B 8477.
AMP Incorporated
Brown John S.
McQuade John
Raring Frederick W.
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