Patent ID: 8389923

Claim:
A photoelectric conversion device having a pixel array region in which a plurality of pixels each including a photoelectric converter are arrayed, and a peripheral region arranged around the pixel array region, the device comprising: a multilayer wiring structure which is arranged on a semiconductor substrate, and includes wiring layers, a number of the wiring layers in the peripheral region being more than a number of the wiring layers in the pixel array region; and a plurality of interlayer lenses arranged on the multilayer wiring structure in the pixel array region, wherein each of the plurality of interlayer lenses includes a first insulator and a second insulator arranged to cover the first insulator, the second insulator having a refractive index higher than a refractive index of the first insulator, and wherein a material of the first insulator in each of the plurality of interlayer lenses is the same as a material of an uppermost interlayer insulating film in the peripheral region, which is arranged between the wiring layers in the multilayer wiring structure.