Metal working – Method of mechanical manufacture – Electrical device making
Patent
1978-03-28
1979-12-18
Drummond, Douglas J.
Metal working
Method of mechanical manufacture
Electrical device making
29628, 156265, 156267, 156517, B41M 308, H01R 4300, B32B 3100
Patent
active
041786785
ABSTRACT:
Apparatus and a method are disclosed for affixing bondable finger contacts (102) to a printed circuit board (330). The bondable finger contacts, as supplied, are wound on a reel (301) in a virtually continuous fashion. Each of the contacts is carried between a pair of attached support carriers (105 and 106). At a first station the support carriers are severed (305, 306, 307, 313, 314 and 315) from a selected group of contacts but these contacts remain interconnected and supported by a strip of protective adhesive tape (108). Thereafter the contacts are transferred (310, 311 and 312) to a second station where they are brought into engagement with an aligned printed circuit board (331, 332, 333, 334 and 337). Application of heat and pressure to thermally curable adhesive (109) on the contacts bonds (335, 336 and 339) the contacts to the circuit board. During these operations the protective tape covers the contact area thereby reducing the possibility of contact area contamination and damage.
REFERENCES:
patent: 3396461 (1968-08-01), Spooner et al.
patent: 3704515 (1972-12-01), Nelson
patent: 3938246 (1976-02-01), Over et al.
patent: 4012835 (1977-03-01), Wallick
patent: 4044201 (1977-08-01), Wallick
patent: 4044460 (1977-08-01), Schachter
patent: 4044888 (1977-08-01), Schachter
patent: 4054238 (1977-10-01), Lloyd et al.
Carrillo Leo
Madden Thomas C.
Bell Telephone Laboratories Incorporated
Drummond Douglas J.
Fisher John W.
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