Solid-state imaging device and method of driving the same

A solid-state imaging device comprising:

• a semiconductor substrate;
• a first impurity region having a first conductivity type provided in a surficial portion of the semiconductor substrate;
• a photo-electric conversion unit in the first impurity region;
• a charge accumulation unit in the first impurity region, in contact with the photo-electric conversion unit, and temporarily accumulating charge generated in the photo-electric conversion unit;
• a charge transfer unit in the first impurity region receiving the temporarily accumulating charge from the charge accumulation unit and transferring the temporarily accumulating charge;
• a second impurity region in the first impurity region, provided in a surficial portion of an area including the charge accumulation unit and the charge transfer unit, the second impurity region having the first conductivity type;
• and an electrode provided over the second impurity region, one of a high-level signal and a low-level signal being input to the electrode.