Patent ID: 7767914
Filing Date: 2010-08-03
Classification: H05K,Y10T

Abstract:
1. A multilayer printed wiring board comprising: a first insulating substrate formed to on a core section provided with a first conductive layer; an indentation section formed in the first insulating substrate; a second conductor layer provided on the first insulating substrate, the second conductor layer having a conductor pattern including a first section formed by a conductor and a thick film section is formed by embedding a conductor in the indentation section, the conductor along the first section of the second conductive layer is lesser in thickness than the conductor within the thick film section; a second insulating substrate accumulated on the first insulating substrate so that the second conductor layer having the conductor pattern is interposed between the first insulating substrate and the second insulating substrate; and a via hole provided on the second insulating substrate, the via hole having a bottom portion, the bottom portion being in contact with the thick film section of the conductor pattern; wherein a thickness of the first section of the second conductor layer is less than a thickness of the first conductive layer on the core section, except for the thick film section.