Patent ID: 9728669
Date: 2017-08-08
CPC Classifications: H01L,Y02E,Y02P

Claim:
1. A method of manufacturing photovoltaic cell comprising: providing a semiconductor substrate structure including: laminating a separate and independent first coating layer formed of a metal oxide on each surface of the plurality of sides, wherein the first coating layer completely covers and surrounds the plurality of sides of the semiconductor substrate; forming a second coating protection layer covering the entire outer face of the first coating layer for protecting the first coating layer from metallic element damage, the second coating protection layer being selected from the group consisting of silicon nitride, silicon oxynitride and the combination thereof, the first coating layer and the second coating protection layer being formed of different compositions; laminating an anti-reflective layer on the conductive layer; and forming at least one first electrode and at least one second electrode being electrically connected to respectively the conductive layer and the semiconductor substrate.