Patent ID: 8785236
Filing Date: 2014-07-22
Classification: H01L,Y02E

Abstract:
1. A method of fabricating a solar cell, the method comprising: forming a poly-crystalline material layer above a single-crystalline substrate; forming a dielectric material above the poly-crystalline material layer; forming, by laser ablation, a plurality of contacts holes in the dielectric material, the plurality of the contact holes exposing P-type and N-type doped regions that are formed in the poly-crystalline material layer; and forming conductive contacts in the plurality of contact holes, a first conductive contact of the conductive contacts being formed to electrically connect to a corresponding P-type doped region in the poly-crystalline material layer and a second conductive contact of the conductive contacts being formed to electrically connect to a corresponding N-type doped region in the poly-crystalline material layer.