Patent ID: 7759222

Claim:
A method for fabricating a solid-state imaging device comprising, on a main surface of a semiconductor substrate, a pixel region, a peripheral circuit region located around a periphery of the pixel region, and a scribe lane region located around the periphery of the peripheral circuit region, the method comprising: a step of forming pixels in the pixel region; a step of forming a driving circuit for driving the pixels in the peripheral circuit region; a step of forming a photodiode protection insulation film for protecting a photodiode acting as a component of each of the pixels on the main surface of the semiconductor substrate; a step of forming a dummy protection insulation film corresponding to the photodiode insulation film both in the peripheral circuit region and the scribe lane region; a step of forming a dummy gate electrode, not functioning as a gate of a transistor, only in the scribe lane region, a step of forming an interlayer insulation film for covering three regions of the pixel region, the peripheral circuit region, and the scribe lane region; and a step of performing a CMP (Chemical Mechanical Polishing) on an entirety of a surface of the interlayer insulation film.