Patent ID: 8895416
Filing Date: 2014-11-25
Classification: H01L,H05B,Y02E,Y02P

Abstract:
1. A method for fabricating an electrical device having a P-N junction, the method comprising: depositing a layer of amorphous semiconductor material onto a crystalline semiconductor base, wherein the crystalline semiconductor base comprises a crystalline phase of a same semiconductor as the amorphous layer; and growing the layer of amorphous semiconductor material into a layer of crystalline semiconductor material that is epitaxially matched to a lattice structure of the crystalline semiconductor base by applying an optical energy that penetrates through at least the amorphous semiconductor material; wherein the optical energy is controlled to penetrate the amorphous semiconductor material such as to produce uniform heating across an interfacing surface between the amorphous semiconductor material and the crystalline semiconductor base; wherein the optical energy is applied in a single application to produce the uniform heating across the interfacing surface for a duration lasting until the amorphous semiconductor material is completely crystallized.