| 摘要 |
A solid-state imaging device is provided in which noise to an image signal is restrained and miniaturization is facilitated in a peripheral circuit formation region. A solid-state imaging device includes a pixel formation region 4 and a peripheral circuit formation region 20 formed in the same semiconductor substrate; in the peripheral circuit formation region 20 a first element isolation portion is formed of an element isolation layer 21 in which an insulation layer is buried in a semiconductor substrate 10 ; in the pixel formation region 4 a second element isolation portion made of an element isolation region 11 formed inside the semiconductor substrate 10 and an element isolation layer 12 projecting upward from the semiconductor substrate 10 is formed; and a photoelectric conversion element 16 ( 14, 15 ) is formed extending to a position under the element isolation layer 12 of the second element isolation portion.
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