Patent ID: 9659841
Date: 2017-05-23
CPC Classifications: H01L

Claim:
1. A method of producing a semiconductor device, comprising the steps of: forming a through hole in a semiconductor substrate, said semiconductor substrate having a first main surface, a second main surface opposite to the first main surface, and a first conductive layer disposed on the second main surface so that the through hole passes through the semiconductor substrate from the first main surface to the second main surface; forming an insulation film to extend from a bottom portion of the through hole on a side of the second main surface to the first main surface through a side surface of the through hole; coating an organic member on at least the insulation film on the side surface of the through hole and the insulation film on the first main surface; removing an air bubble in the organic member and an air bubble between the organic member and the insulation film when the air bubble is formed in the organic member and between the organic member and the insulation film during the step of coating the organic member; and forming a first opening portion in the organic member.