Patent ID: 7718901
Filing Date: 2010-05-18
Classification: H01L,H05K,Y10T

Abstract:
1. An electronic parts substrate comprising: a base substrate; a plurality of insulating resin layers provided on the base substrate; at least one conductive circuit sandwiched between the plurality of insulating resin layers and/or between the base substrate and the plurality of insulating resin layers; at least one opening formed in at least one of the plurality of insulating resin layers; and at least one filled via provided in the plurality of insulating resin layers, wherein the base substrate has opposite upper and lower faces, the plurality of insulating resin layers being provided on both of the upper and lower faces, wherein the at least one opening has an upper opening and a lower opening which are provided at opposite positions with respect to the base substrate, and wherein an upper terminal is provided in the upper opening and a lower terminal is provided in the lower opening, the upper opening and the lower opening being subjected to different surface treatments.