The Characteristics of a Buried Electrode Image Sensor with Photo-Electric Conversiton Area Connected to a Common Drain

Abstract

A buried electrode image sensor with a neutral photo-electric conversion area which is connected to a common drain was proposed to relize high photo-sensitivity wide, dymanamic range and low smear. The performance of the device with 1, 000×1, 000 cell/cm² was simulated by a numerical analysis which solves simultaneous continuity equations for potential and electron and hole currents. The analysis indicated that the storable signal charge reaches 1.8×10⁵hole/cell with the dynamic range and smear of 83.4dB's and -136dB's respectively.