Oblon, Spivak, McClelland, Maier & Neustadt
Solid-state imaging device suppressing dark-current noise
 An FIT or IT solid-state imaging device comprising a p-type Si substrate in which n-type regions forming storage diode portions, signal read-out portions, n-type CCD channels, and p.sup.+ -type element isolating regions are formed, a solid-state imaging element chip on the top of the substrate in which pixel electrodes are formed, a photo-conductive film stacked above the solid-state imaging element chip, and a transparent electrode formed above the photo-conductive film, wherein a drain for charge injection is further provided in or at one end of the pixel region of the substrate, the potential of the storage diode portion is set to a value almost equal to the potential of the element isolating region immediately before the accumulation of the signal charge, by injecting a specified amount of charge from the drain into the storage diode portion, and during the accumulation of the signal charge, the potential applied to the transparent electrode is set to a value higher than the potential of the storage diode portion set immediately before the accumulation of the signal charge, and the potential of the storage diode portion is made close to the potential of the element isolating layer and the substrate in the vicinity particularly in a case where the amount of incident light is small so that variations in dark current are conspicuous, by injecting holes of the carriers generated by the incident light in the photo-conductive film into the storage diode portion. 
Kabushiki Kaisha Toshiba
H
H01L
inventional
Yoshiyuki Hirofumi
Matsunaga Yamashita