Patent ID: 9136291
Filing Date: 2015-09-15
Classification: H01L

Abstract:
1. A method of manufacturing a solid-state imaging device comprising: forming an imaging element on a first main surface of a semiconductor substrate; forming a first insulating interlayer on the first main surface of the semiconductor substrate; forming a first contact plug in the first insulating interlayer; forming a first electrode on the first insulating interlayer and first contact plug; forming a through-hole from a second main surface of the semiconductor substrate opposite to the first main surface to a surface of the first insulating interlayer; forming an insulating film on a side surface of the through-hole and on the surface of the first insulating interlayer; removing the insulating film on the surface of the first insulating interlayer in the through-hole; forming a penetration electrode on the first contact plug, the insulating film, and the first insulating interlayer in the through-hole; forming a second insulating interlayer on the first electrode; forming a second electrode on the second insulating interlayer; forming a passivation film on the second electrode and the second insulating interlayer to have an opening, the opening partially exposing the second electrode; and forming a second contact plug between the first electrode and the second electrode to electrically connect the first electrode and the second electrode to each other.