Patent ID: 9585254
Date: 2017-02-28
CPC Classifications: H01L,H05K

Claim:
1. An electronic device, comprising: a substrate made of a semiconductor material and having a substrate obverse surface and a substrate reverse surface that are opposite to each other in a thickness direction of the substrate; an electronic element mounted on the substrate; a conductive layer electrically connected to the electronic element; a sealing resin; and a columnar conductor, wherein the substrate is formed with an element-receiving recess recessed from the substrate obverse surface and having a recess bottom surface, the electronic element is mounted on the recess bottom surface, the conductive layer has an obverse-surface contacting region located on the substrate obverse surface, the sealing resin is disposed in at least a part of the element-receiving recess and covers at least a part of the substrate obverse surface, the columnar conductor is electrically connected to the obverse-surface contacting region of the conductive layer and exposed from the sealing resin at a side opposite to the substrate obverse surface, and an obverse surface of the electronic element is spaced further from the recess bottom surface in the thickness direction than an obverse surface of the obverse-surface contacting region of the conductive layer, wherein the columnar conductor has a side surface that is parallel to the thickness direction and covered with the sealing resin; and an electrode pad that is in contact with the columnar conductor at a side of the columnar conductor that is opposite to a side facing the substrate obverse surface, wherein the columnar conductor and the electrode pad are made of mutually different electroconductive materials.