Patent ID: 7849591
Filing Date: 2010-12-14
Classification: H01L,H05K,Y10T

Abstract:
1. A method of manufacturing a printed wiring board, comprising: a set of steps of forming a via hole in an insulating base material made of a resin having a thermal plasticity or a thermo-set resin in a partially cured state and having an electric conductive layer formed on one side thereof, and filling the via hole with an electric conductive paste in a printing manner to make a plugging electrode; a set of steps of positioning, to the plugging electrode, a re-wiring portion of a semiconductor device having the re-wiring portion connected to an electrode formed on a semiconductor board, and provisionally joining the semiconductor device to an adhesion layer of the insulating base material by a thermo-compression bonding; and a step of performing an adhesive bonding between insulating base materials, an adhesive bonding of the insulating base material and the semiconductor device, and a hardening of the electric conductive paste to make the plugging electrode, by a hot pressing as a single step.