Patent ID: 7954234
Filing Date: 2011-06-07
Classification: H01L,H05K,Y10T

Abstract:
1. A method of manufacturing a wiring board, the method comprising: (a) roughening a surface of a support plate; (b) forming a mask pattern on the surface of the support plate and smoothening a surface of the support plate which is exposed from the mask pattern; (c) forming a plurality of conductive patterns on the supporting plate such that the plurality of conductive patterns come into contact with the support plate; (d) forming a resin layer to cover the plurality of conductive patterns and to come into contact with the support plate; (e) forming another conductive pattern connected to at least one of the plurality of conductive patterns; and (f) removing the support plate, wherein at least one of the plurality of conductive patterns is formed on the smoothened surface of the support plate, and wherein a first area of the support plate coming into contact with at least one of the plurality of conductive patterns in step (c) is different in surface roughness from a second area of the support plate coming into contact with the resin layer in step (d).