Patent ID: 7362366

Claim:
A solid-state imaging device comprising: an imaging area including, unit cells arranged in a two-dimensional matrix on a semiconductor substrate, said unit cells each having a photoelectric conversion element; vertical signal lines each being connected in common to the unit cells in the same column; vertical select lines each being connected in common to the unit cells in the same row, configured to select the unit cells in the same row; a driving circuit configured to selectively drive said vertical select lines; load transistors each being connected to corresponding one of said vertical signal lines at one end; signal storage regions each being connected to corresponding one of said vertical signal lines at the other end, configured to store a signal readout on the corresponding one of said vertical signal lines; a horizontal signal line onto which signals stored in said signal storage regions are sequentially transferred; transistors each being provided on a signal path arranged between corresponding one of said vertical signal lines and said horizontal signal line; and a bias voltage control circuit configured to bias one of the drain and source of each of said transistors in the reverse direction with respect to the substrate region at least in a period during which the signals are transferred sequentially from said signal storage regions to said horizontal signal line, wherein said bias voltage control circuit keeps activated a driving signal for selectively driving configured to selectively drive said vertical select lines for a read operation of corresponding row, at least in a period during which signals stored in said signal store regions are sequentially read out on said horizontal signal line.