Method for vacuum lamination of flex circuits

Details Method for vacuum lamination of flex circuits Method for vacuum lamination of flex circuits

1979-08-17

1981-09-22

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156289, 1563066, 156312, 156902, B29C 1700, B32B 3100

Patent

active

042908388

ABSTRACT:
A vacuum laminating fixture includes a pair of opposed plates having opposed plane faces with a peripheral groove formed in each plate surrounding the face with the grooves matched for receiving a unitary band seal extending between the grooves for sealing the space between the faces of the plates, a vacuum port is formed in the lower plate communicating with the area of the face inside the peripheral groove. The method includes setting up a laminate of plural flexible sheets of circuit, placing the laminate within and between the faces of the plates, drawing a vacuum of 28 inches of mercury for a period of two minutes to completely evacuate the space between the laminate sheets, and thereafter applying a predetermined curing pressure and temperature to the plates within a press.

REFERENCES:
patent: 3573126 (1971-03-01), Kougel
patent: 3681171 (1972-08-01), Hojo et al.
patent: 3684610 (1972-08-01), Frielingsdorf et al.
patent: 3960635 (1976-06-01), La Roy et al.
IBM Technical Disclosure Bulletin, Thin Foil Laminator by R. F. Penoyer, vol. 9, No. 10, Mar. 1967, p. 1411.

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