Patent ID: 7176507
Filing Date: 2007-02-13
Classification: H01L

Abstract:
1. A solid state image sensing device comprising: a first semiconductor region of first conductivity type; a photodiode provided in the first semiconductor region, the photodiode configured to convert light into charge and accumulate the charge, the photodiode including a second semiconductor region of second conductivity type provided in the first semiconductor region; a third semiconductor region of second conductivity type provided in the first semiconductor region with a space from the second semiconductor region; a gate electrode provided on the first semiconductor region between the photodiode and the third semiconductor region; a gate insulator layer interposed between the first semiconductor region and the gate electrode; a fourth semiconductor region of second conductivity type provided below the second semiconductor region in the first semiconductor region; and a fifth semiconductor region of first conductivity type with impurity concentration higher than that of the first semiconductor region provided between the second semiconductor region and the fourth semiconductor region in the first semiconductor regions, the fifth semiconductor region provided directly under the second semiconductor region.