Patent ID: 8440493
Filing Date: 2013-05-14
Classification: H01L

Abstract:
1. A manufacturing method of a solid-state imaging apparatus including a first region in which a plurality of pixels each including a photoelectric conversion element are arranged, a second region including a peripheral circuit for readout from the plurality of pixels, an interlayer lens arranged above the photoelectric conversion elements, a color filter arranged above the interlayer lens, and a lens arranged above the color filter, the method comprising: preparing a first metal wiring layer, an insulating film, an etch stop layer, a first insulating film, and a second metal wiring layer, wherein the first metal wiring layer, the insulating film, the etch stop layer, the first insulating film, and the second metal wiring layer are layered in this order, and wherein the second wiring layer is provided on the first insulating film in the second region; removing the first insulating film in the first region using the etch stop layer until the etch stop layer is exposed; after the removing of the first insulating film, forming a second insulating film in the first region and in the second region; and forming the interlayer lens in the first region by processing the second insulating film.