FIELD: manufacture of multilayer printed-circuit boards. SUBSTANCE: prior to metal sputtering in through conical holes insulating layers on their butt ends are chipped away and protruding ends of contact pads are bent out towards central layers and uniformly distributed over hole surfaces whereupon internal walls of these holes are coated with current-conducting material. EFFECT: facilitated procedure, simplified design of equipment used. 3 dwg
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Authors
Dates
2002-05-10—Published
2001-02-14—Filed