For solar cells and the solar cell substrate

The present invention provides a solar cell and a solar cell substrate, wherein the silicon has a corner portion of the plate in a square shape in plan view a flat chamfered portion is formed, or a notch is formed in the vicinity of the corner portion or the corner portion. The present invention makes it possible to easily check the position of the solar cell substrate manufacturing step and determining the direction of the substrate, since the substrate and the direction of suppressing failure generated.