Patent ID: 8338213
Filing Date: 2012-12-25
Classification: H01L,Y02E,Y02P

Abstract:
1. A method for manufacturing a solar cell, the method comprising: forming an impurity doped region of a second conductive type at a substrate of a first conductive type; sequentially irradiating laser shots onto the impurity doped region of the substrate to form an emitter part including a first emitter region having a first sheet resistance and a second emitter region having a second sheet resistance less than the first sheet resistance; and forming a plurality of first electrodes connected to the second emitter region and forming a second electrode connected to the substrate, wherein a total overlap area of the laser shots irradiated onto a unit area of a first area of the impurity doped region to form the first emitter region is less than a total overlap area of the laser shots irradiated onto a unit area of a second area of the impurity doped region to form the second emitter region.