application of laser in fiber for a process of removal of the film board in applications of solar cells

摘要

The present invention provides a method and apparatus for edge film stack removal process for fabricating photovoltaic devices. In one embodiment, a method for manufacturing solar cell devices on a substrate includes providing a substrate to an edge material removal apparatus, wherein the substrate has a plurality of materials disposed on a back side of the substrate, the plurality of materials including at least a first doped silicon material and a dielectric material, and removing at least one of the layers formed on the periphery region of the substrate by a fiber laser radiation disposed in the apparatus.