Patent ID: 7279712
Filing Date: 2007-10-09
Classification: H01L

Abstract:
1. A solid state image pickup device comprising: a photo-electric conversion region; an MOS transistor formed at a first surface of a semiconductor material substrate; wherein said photo-electric conversion region is comprised of a first impurity region of a first conductivity type formed at a second surface of said substrate; a second impurity region of a second conductivity type formed adjacent said first impurity region; and a third impurity region of said first conductivity type formed adjacent said second impurity region; and wherein said MOS transistor is comprised of a first well region of said first conductivity type and a source and a drain regions of said second conductivity type formed in said first well, wherein said photo-electric-conversion region has a fourth impurity region of said second conductivity type connected to said second impurity region and a fifth impurity region of said first conductivity type formed extending into said third impurity region.