Patent ID: 8841157
Filing Date: 2014-09-23
Classification: H01L,Y02E

Abstract:
1. A method of forming a thin film photovoltaic module, the method comprising: providing a substrate having a first surface and a second surface opposing the first surface, wherein the substrate has a first conductive layer coupled to the first surface; removing a portion of the first conductive layer to expose a portion of the first surface; forming at least one semiconductor layer coupled to remaining portions of the first conductive layer and the portion of the first surface; removing, using laser energy, a first portion of the at least one semiconductor layer to form a plurality of non-overlapping vias extending through the removed first portion of the at least one semiconductor layer to the first conductive layer, using a single laser pulse per via; forming a second conductive layer coupled to a remaining portion of the at least one semiconductor layer and portions of the first conductive layer exposed by the plurality of vias; and removing, using laser energy, a portion of the second conductive layer to expose a second portion of the at least one semiconductor layer.