MODULES AND PROCESSES FOR METAL PARTICLES REMOVAL

摘要

Embodiments of the present invention provide an apparatus and methods for processing solar cell devices. In one embodiment, a method removing particles from edge regions of the solar cell device by a cleaning module with a constant loading applied onto a back surface of the solar cell device, wherein the cleaning modules has two or more roller-type brushes disposed at opposed sides of a rotation table located before and/or after a quality assurance stage configured to measure and correct defects in the solar cell device, and transferring the solar cell device into an edge deletion station in which an electromagnetic radiation energy is used to remove materials from a top surface of the solar cell device. The roller-type brushes include non-abrasive bristles configured to remove unwanted material from the periphery region of the solar cell device prior to transferring into the edge delete station.