Patent ID: 9263616
Filing Date: 2016-02-16
CPC Classification: H01L,Y02E,Y02P

Claim Text:
1. A photovoltaic device, comprising: a contact area including: a doped emitter layer having a first conductivity on a substrate having a second conductivity; a patterned layer formed on the doped emitter layer, the patterned layer including openings that expose areas of the doped emitter layer; an epitaxial layer having a crystalline phase grown in contact with an upper surface of the doped emitter portion, the epitaxial layer having a same conductivity type as the doped emitter layer with a greater doping concentration than the doped emitter layer; a diffusion region having a first conductivity extending from the epitaxial layer into the doped emitter layer; and conductive contacts formed on the epitaxial layer in the openings.