Laser Marking For cSi Solar Cells
In the beginning of production of solar cells wafers must be marked to control and evaluate each cell on each process step. It might be combination of numbers or letters, or a barcode. Inscription must be seen without problems at any step in manufacturing process. Nanosecond laser usually is used.
Galvanometer scanners are used to control laser beam to mark the wafer. Machine vision feature enables to detect wafer position and orient the increment precisely. Flexible and reliable software named “SCA” helps to control the process with scientific and industrial modes.
