Patent ID: 9093578
Filing Date: 2015-07-28
Classification: H01L

Abstract:
1. A method of manufacturing a solid-state image sensor including an image sensing region and a pad region, the method comprising the steps of: preparing a structure including a photoelectric converter formed in the image sensing region and a pad electrode formed in the pad region; forming a first organic film including a first organic portion arranged in the image sensing region of the structure in the image sensing region and the pad region; forming a color filter layer on the first organic portion; forming a second organic film in the image sensing region and the pad region so as to cover the color filter layer; forming an inorganic film in the image sensing region and the pad region so as to cover the second organic film; and etching the inorganic film, the second organic film, and the first organic film so as to form an opening which communicates with the pad electrode, wherein, in the step of etching the inorganic film, the second organic film, and the first organic film, at least the inorganic film is etched by plasma etching, wherein the second organic film includes a second organic portion arranged in the image sensing region to cover the color filter layer, a microlens arranged on the second organic portion, and a portion arranged in the pad region, and wherein a distance from an upper face of the second organic film to an upper face of the pad electrode in the pad region is larger than a total of a thickness of the first organic portion and a thickness of the second organic portion.