Patent ID: 8633524
Filing Date: 2014-01-21
Classification: H01L

Abstract:
1. A solid-state imaging device comprising: a substrate; a photoelectric conversion section configured to convert incident light into a signal charge, the photoelectric conversion section being disposed on said substrate and including an impurity region having a carrier polarity of a first conductivity type; a first impurity layer being disposed on said substrate, having a carrier polarity of a second conductivity type opposite from said first conductivity type, and having a first impurity concentration; a charge-to-voltage converting section configured to convert said signal charge converted by said photoelectric conversion section into voltage, the charge-to-voltage converting section being disposed on said first impurity layer and including an impurity region having a carrier polarity of said first conductivity type; an amplifying section configured to amplify said voltage converted by said charge-to-voltage converting section, the amplifying section being disposed on said first impurity layer and including a source/drain region having a carrier polarity of said first conductivity type; and a second impurity layer disposed in a region between said photoelectric conversion section and said amplifying section, having a carrier polarity of said second conductivity type, and having a second impurity concentration higher than said first impurity concentration.