Wireworking – Crimping
Patent
1992-06-08
1993-10-12
Larson, Lowell A.
Wireworking
Crimping
29827, 295663, B21F 100, B23P 2300
Patent
active
052516792
ABSTRACT:
The present invention is directed to a method and apparatus for bending and cutting outboard terminals, or leads, of surface mountable integrated modules applied to a carrier frame wherein slots are cut in the carrier frame so that retaining webs remain between the slots and the circuit modules. Each of the retaining webs interconnects the outboard terminals along one side of the circuit module to stabilize the terminals during a subsequent bending of the leads. A combination cutting and bending die is moved downward to cut the retaining webs free from one another and to bend the leads into their desired shape. The retaining webs and any excess length of the outboard terminals is then trimmed off, all while the circuit module is held in a hold-down part so that no stresses are transferred to the chip module during bending.
REFERENCES:
patent: 3796201 (1974-03-01), Golub
patent: 3903934 (1975-09-01), Vizy
patent: 4399610 (1983-08-01), Moyer
patent: 4466183 (1984-08-01), Burns
patent: 4812421 (1989-03-01), Jung et al.
patent: 4945954 (1990-08-01), Wehrly, Jr. et al.
patent: 5065504 (1991-11-01), Olla
Larson Lowell A.
McKeon Michael J.
Siemens Nixdorf Informationssysteme AG
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