Process of producing plastic-molded printed circuit boards

Details Process of producing plastic-molded printed circuit boards Process of producing plastic-molded printed circuit boards

1987-01-14

1988-08-16

Wyse, Tom

Plastic and nonmetallic article shaping or treating: processes

With step of making mold or mold shaping, per se

Utilizing surface to be reproduced as an impression pattern

264227, 26427211, 26427215, 26427217, B29C 3340

Patent

active

047643277

ABSTRACT:
A process of producing plastic-molded printed circuit boards by injection-molding a heat resistant plastic to form a plastic molding having many perforations and forming a conductive layer on the molding, which comprises molding the heat resistant plastic using a mold for injection-molding obtained by preparing a die set for injection-molding composed of a fixed side metal platen having at least an inlet for molten resin and forming a space for installing mold part(s), a stripper metal platen having, if necessary, an inlet for molten resin connected to the fixed side metal platen and forming a space for installing mold part(s), and a movable side metal platen forming a space for installing mold part(s); and assembling a pair of molds composed of a mold I having a concaved portion for cavity and a mold II having perforations for passing hard pins for forming holes and, if desired, a concaved portion for cavity, said molds being formed by a cured resin composition or a composite of a metal and a cured resin composition, and a hard pin mold III having hard pins for forming holes fixed thereto in such a manner that

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