Expanded image sensor pixel array

An image sensor comprising:

• a first integrated circuit die including an image sensor pixel array having active pixels and non-active pixels arranged in a number of pixel rows;
• and
• a second integrated circuit die mounted to the first integrated circuit die, the second integrated circuit die including pixel control circuitry having a number of sets of control paths fewer than the number of pixel rows, wherein a first set of the pixel rows in the image sensor pixel array are coupled to the set of control paths in the pixel control circuitry via row lines and a second set of the pixel rows in the image sensor pixel array are decoupled from the pixel control circuitry, wherein the first integrated circuit die is a stitched die constructed by a step and repeat exposure process using a reticle set.

An image sensor comprising:

• an array of image sensor pixels;
• and
• a circuitry block coupled to the array of image sensor pixels via a set of parallel conductive lines, each conductive line being coupled to a corresponding set of image sensor pixels in the array of image sensor pixels, wherein the array of image sensor pixels includes a set of redundant pixels that are decoupled from the circuitry block and wherein the set of redundant pixels comprises active pixels.