Method and system for monitoring a laser structuring process for forming isolation trenches in a solar module

摘要

The present invention describes a method and system for monitoring a laser patterning process used to form isolation trenches in a solar module. The method comprises the steps of providing a semi-finished solar module, forming an isolation trench, illuminating a region of the semi-finished solar module at a first surface of the semi-finished solar module, detecting a quantity of light transmitted through the illuminated region of the semi-finished solar module at a second surface of the semi-finished solar module, and evaluating the formed isolation trench in the illuminated area. The system comprises a device for generating a laser beam, a lighting device of a region of the semi-finished solar module, a device for detecting a quantity of light and a device for evaluating the isolation trench formed. The method and system provide a simple and highly effective way to continuously inspect isolation trenches.