Printed circuit board, printed circuit board relief patterned metal plates, and method of manufacturing a printed wiring board

摘要

PROBLEM TO BE SOLVED: To provide a printed circuit board which has high smoothness and connection reliability, and to provide a manufacturing method thereof.;SOLUTION: This manufacturing method comprises a step for applying half- etching to a masked metal plate 11, a step for forming paste bumps 12 on an inner layer wiring relief pattern 11B of a wiring member 11D overlapping a prepreg 13 on the paste bumps 12, a step for pressing the prepreg 13 to penetrate it into the paste bumps 12, a step for arranging another wiring member 21 in an opposed position to the wiring member 11D and pressing them to electrically connect wiring members 11D, 21 each other, a step for forming Au bumps on the outer surface of the obtained raw material for the printed circuit board, a step for molding the periphery with a resin and polishing the molded material, and a step for forming a plated layer thereon and selectively etching the plated layer to form a surface wiring pattern.;COPYRIGHT: (C)2003,JPO