Laser Welding Machine, PE-W700-E

This particular laser welding machine is used for Emitter Wrap Through (EWT) and Metallization Wrap Through (MWT) solar cells. For these solar cells, the emitter contacts are transferred to the rear of the wafer, and connected to the front emitter using metallized laser drilled holes.

Back contact solar cells offer a number of advantages over conventional solar cells. They have the potential for a higher efficiency, and are mainly used for reduced shadowing and series resistance losses.

Wafer Size: 125mm×125mm/156mm×156mm
Smaller heat affected zone
CCD automatic positioning
XYZ mobile platform
Auto loading and uploading system (optional)

Laser Welding Machine, PE-W700-E
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