Patent ID: 7325301
Filing Date: 2008-02-05
Classification: H01L,H05K,Y10T

Abstract:
1. A method of manufacturing a wiring board including a wiring part formed of one or more wiring layers, a first terminal area disposed on one side of the wiring part in a projecting manner, and a second terminal area disposed on the other side of the wiring part, the method comprising: a resist forming step of forming a resist having an opening for a first terminal area, on a surface of a composite having a plurality of metal layers; an etching step of etching only a first metal layer of the composite to form a hole through the opening for a first terminal area of the resist; a first electroplating step of forming a first terminal area by electroplating through the opening for a first terminal area of the resist, such that the hole is filled with the first terminal area; a wiring layer forming step of forming a wiring layer by disposing a resin material layer on the first terminal area, after the resist is removed from the composite; a solder resist forming step of forming on the wiring layer a solder resist having an opening for a second terminal area; a second electroplating step of electroplating the opening for a second terminal area of the solder resist to form a second terminal area; and an etching and removing step of etching and removing remaining parts of the composite.