Patent ID: 7391453

Claim:
A solid-state image sensor comprising: a plurality of pixel units arranged in a row direction and a column direction, each of the plurality of pixel units including a photoelectric converter, a first transistor for transferring a signal generated by the photoelectric converter, a second transistor for amplifying the signal, a third transistor for resetting an input terminal of the second transistor, and a fourth transistor for reading the signal outputted by the second transistor; a plurality of first signal lines extended in the row direction, each of the first signal lines being connected to gate electrodes of the first transistors of the pixel units arranged in the row direction; and a plurality of second signal lines extended in the row direction, each of the second signal lines being connected to gate electrodes of the fourth transistors of the pixel units arranged in the row direction, the first signal line connected to the gate electrodes of the first transistors of the pixel units of an n th row, and the second signal line connected to the gate electrodes of the fourth transistors of the pixel units of an n+1 th row being formed of a common signal line, in each pair of the pixel units of the n th row and the n+1 th row corresponding to each other, the gate electrode of the first transistor of the pixel unit of the n th row and the gate electrode of the fourth transistor of the pixel unit of the n+1 th row being formed in one continuous pattern of a same conducting layer, wherein the photoelectric converter and the first transistor being adjacent to each other in the row direction, the second transistor and the third transistor being adjacent to each other in the column direction, the gate electrode of the first transistor and the gate electrode of the fourth transistor being arranged so that a gate width direction thereof corresponds to the column direction.