Patent ID: 9455286
Filing Date: 2016-09-27
CPC Classification: H01L

Claim Text:
1. An imaging device comprising: a semiconductor substrate having a first side as a light incident side and a second side opposite the first side; an image pick-up area disposed in the semiconductor substrate and having at least one light sensor; a through hole extending from the second side of the semiconductor substrate towards the first side; a transparent plate disposed along the first side; a cavity disposed between the transparent plate and the image pick-up area and disposed over the semiconductor substrate in an area of the semiconductor substrate without the through hole; an insulating film covering inner side surfaces of the through hole; and an electrically conductive material disposed in the through hole, wherein the electrically conductive material is physically connected to at least a portion of a lower surface of a laminar layer portion comprising at least one conductive layer located at the first side of the semiconductor substrate and is electrically connected to the laminar layer portion, wherein a light-receiving surface of the image pick-up area and the first side of the semiconductor substrate are coplanar.