Patent ID: 8410532

Claim:
A solid-state imaging device comprising: a semiconductor substrate having a pixel region and a peripheral circuit region, the peripheral circuit region being in a periphery of the pixel region and configured to perform drive control of the pixel region and imaging signal processing, a plurality of unit pixels, each including a photoelectric conversion element and a gate element, being disposed in a two-dimensional array within the pixel region; a multilayer wiring layer including layers of wiring and an interlayer film interposed therebetween, and disposed above the semiconductor substrate to cover the pixel region and the peripheral circuit region except areas above the photoelectric conversion elements; a waveguide member filling the areas above the photoelectric conversion elements and covering the multilayer wiring layer at least within the pixel region such that, in each of the areas above the photoelectric conversion elements, a waveguide is formed by the waveguide member and the interlayer film, the waveguide being an optical path for guiding incident light therethrough to the corresponding photoelectric conversion element; and an optical structure that is composed of a color filter material and a lens material and that is disposed above the waveguide member within the pixel region, wherein a groove is formed by a portion of the waveguide member covering the multilayer wiring layer being removed from an area within the pixel region along a border between the pixel region and the peripheral circuit region.