Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1989-03-02
1990-08-07
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156286, 156290, 156358, 156553, B32B 3120
Patent
active
049465244
ABSTRACT:
In the application of dry film solder mask material to a board, a process and applicator for the implementation thereof features automatic feed of the board, initiation of leading and trailing edge tacking, by heated or unheated tacking rolls, of the film to the board by utilization of the board to apply a force tangential to the tacking rolls, and logic circuitry to regulate the leading and trailing edge tacking by closing the tacking rolls to apply roll pressure during each of the leading and trailing edge tacks, and after tacking of the film to the leading edge of the board, opening of the rolls to allow the film to be applied without pressure, with the rolls being closed again to tack the film to the trailing edge of the board.
REFERENCES:
patent: 3658629 (1972-04-01), Cramer et al.
patent: 4387000 (1983-06-01), Tancredi
patent: 4495014 (1985-01-01), Gebrian et al.
patent: 4650536 (1987-03-01), Ceraso
Correa Jose L.
Farnum Charles L.
Stumpf Robert C.
Ball Michael W.
Barry Chester T.
Morton International Inc.
White Gerald K.
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