Patent ID: 6483163
Filing Date: 2002-11-19
Classification: H01L,Y02E

Abstract:
A photoelectric conversion apparatus, comprising:(a) a base comprising a first conductive-type higher-density semiconductor substrate and a first conductive-type lower-density semiconductor layer formed on the first conductive-type higher-density semiconductor substrate; (b) a plurality of pixels formed in the base, each pixel including a device activated by a voltage applied via the first conductive-type higher-density semiconductor substrate and the first conductive-type lower-density semiconductor layer, in this order; and (c) filled trenches between any two adjacent pixels in the base, the filled trenches extending downward from the top surface of the first conductive-type lower-density semiconductor layer, each of the filled trenches being filled with one material that has a conductivity with respect to the first conductive-type lower-density semiconductor layer, so as to reduce the resistance between the first conductive-type higher-density semiconductor substrate and a surface region of the first conductive-type lower-density semiconductor layer, so as to reduce crosstalk between pixels.