Substrate for mounting IC chip, substrate for motherboard, device for optical communication, manufacturing method of substrate for mounting IC chip, and manufacturing method of substrate for motherboard

摘要

The present invention aims to provide a substrate for mounting an IC chip, on which an optical signal passing region is formed and which can suppress a transmission loss in an optical signal and transmit an optical signal more positively with high reliability. The substrate for mounting an IC chip according to the present invention is a substrate for mounting an IC chip, in which a conductor circuit and an insulating layer are laminated in alternate fashion and in repetition on both faces of a substrate and an optical element is mounted on the substrate. Herein, the substrate for mounting an IC chip includes an optical signal passing region, and a microlens arranged on an end portion of the optical signal passing region on the opposite side from the optical element.