Solid-state image sensor and camera

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United States of America Patent

PATENT NO 8885082
SERIAL NO

13644773

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Abstract

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A solid-state image sensor has a plurality of pixel units, each pixel unit including a plurality of pixels, and a charge-voltage converter shared by the plurality of pixels. The sensor includes a structural portion including a plurality of wiring layers, an interlayer insulating film, and light waveguides configured by embedding, in portions of the interlayer insulating film located above the photoelectric converters, a material having a refractive index higher than that of the interlayer insulating film. A dummy pattern is formed in the structural portion to reduce a difference between a sensitivity of a first pixel and that of a second pixel, which is produced by a difference between a structure in a periphery of the light waveguide arranged above the photoelectric converter of the first pixel and that of the second pixel.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akiyama, Takeshi Kawasaki, JP 108 1292
Iwata, Koichiro Kawasaki, JP 58 632
Kato, Taro Kawasaki, JP 61 438
Noda, Tomoyuki Kawasaki, JP 55 638
Wada, Yoichi Yokohama, JP 62 381

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