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High throughput solar cell ablation system

United States Patent

October 14, 2014
View the Complete Patent at the US Patent & Trademark Office
A solar cell is formed using a solar cell ablation system. The ablation system includes a single laser source and several laser scanners. The laser scanners include a master laser scanner, with the rest of the laser scanners being slaved to the master laser scanner. A laser beam from the laser source is split into several laser beams, with the laser beams being scanned onto corresponding wafers using the laser scanners in accordance with one or more patterns. The laser beams may be scanned on the wafers using the same or different power levels of the laser source.
Harley; Gabriel (Mountain View, CA), Pass; Thomas (San Jose, CA), Cousins; Peter John (Menlo Park, CA), Viatella; John (San Mateo, CA)
SunPower Corporation (San Jose, CA)
13/ 584,613
August 13, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This disclosure was made with Government support under Contract No. DEFC36-07GO17043 awarded by the United States Department of Energy.