Patent ID: 6936873

Claim:
A solid state imaging device comprising: a semiconductor substrate having a planar surface; a plurality of channels arranged in parallel spaced from each other at predetermined intervals on the planar surface of the semiconductor substrate; a plurality of channel separating regions with each region arranged between a pair of adjacent channels; a plurality of transfer electrodes arranged on the semiconductor substrate along a direction intersecting the channels; a plurality of power supply lines arranged on the transfer electrodes along the channel separating regions; a transparent insulation film laminated on the transfer electrodes covering the power supply lines, the transparent insulation film including portions above the channels in which the thickness continuously increases from the center of each channel of a pair of adjacent channels to the channel separating region arranged between that pair of adjacent channels; and a transparent protection film laminated on the insulation film and having a refractive index that is greater than that of the insulation film, wherein the transparent insulation film includes second portions above the channel separating regions in which the thickness continuously decreases from the center of each region toward each channel of the pair of adjacent channels that each region is arranged between, in such a manner that a thickness decreasing ratio gradually decreases.