Patent ID: 8803067
Filing Date: 2014-08-12
Classification: H01L

Abstract:
1. A solid state imaging device comprising: a semiconductor substrate having a plurality of photodiodes thereon and a first wiring portion, a second wiring portion and a third wiring portion; a boundary between the first wiring portion and the second wiring portion; a first wiring layer over the semiconductor substrate and which includes a plurality of metal films and extends across all the wiring portions; a second wiring layer over the first wiring layer and which extends across the first wiring portion and the second wiring portion; and a third wiring layer over the second wiring layer and which extends across the first wiring portion and includes a plurality of metal films, wherein a primary height of the first wiring portion at approximately the boundary is different than a secondary height of the second wiring portion at approximately the boundary, and wherein the second wiring layer is comprised of an upper layer located closer to the third wiring layer and which includes a shielding film and a lower layer which is closer to the first wiring layer and which includes a shielding film, and the shielding film in the lower layer is closer to the boundary between the first wiring portion and second wiring portion than the shielding film in the upper layer.