Patent ID: 9265161
Filing Date: 2016-02-16
CPC Classification: H05K,Y10T

Claim Text:
1. A method of manufacturing an embedded printed circuit board (PCB), comprising: a first step of laser-patterning an insulating layer and a photoresist layer laminated on the insulating layer together to form a circuit pattern region in which a part of the insulating layer is etched; a second step of forming a metal seed layer on the insulating layer on which the circuit pattern region is formed, and filling the circuit pattern region with a metal material; a third step of removing the metal seed layer from a top face of a circuit pattern so that the metal seed layer is formed on the remaining surface except for the top face of the circuit pattern, thereby forming a first printed circuit board; and a fourth step of disposing the first printed circuit board on a first surface of an inner circuit board, wherein the method further comprises: forming a second printed circuit board by the first through third steps; and disposing the second printed circuit board on a second surface of the inner circuit board opposite to the first surface.