Substrate, substrate fabrication, semiconductor device, and semiconductor device fabrication

摘要

A substrate for fixing an integrated circuit (IC) element comprises: a substrate for fixing an integrated circuit element includes: a plurality of metal posts that are aligned in a longitudinal direction and a lateral direction in plan view, each of the plurality of metal posts having a first surface and a second surface facing an opposite direction to the first surface, the plurality of metal posts being configured identically; and a joining section that joins each of the plurality of metal posts together at a portion of each of the plurality of metal posts between the first surface and the second surface.