US Patent 9445026 Solid-state image sensor

A solid-state image sensor comprising a pixel array in which a plurality of pixels are arrayed in a matrix having a plurality of rows and a plurality of columns, wherein the pixel array includes a first wiring layer and a second wiring layer arranged above the first wiring layer, the first wiring layer includes first column signal lines arranged at the respective columns of the pixel array, and the second wiring layer includes second column signal lines arranged at the respective columns of the pixel array.