Front-and-back electrically conductive substrate and method for manufacturing same

摘要

A front-and-back electrically conductive substrate (1), characterized by having a plurality of posts (2) composed of a material that can be anisotropically etched and having an electrically conductive portion (3) that has at least a first surface and a second surface that communicate with each other, and an insulative substrate (4) that supports the plurality of posts (2).