Advantages:

• Reliable operation
• Non-contact processing
• Small footprint and compact size
• Convenient automation software
• Simple integration in in-line manufacturing facilities

Workshop of Photonics also provides laboratory testing of particular solar cell wafers for development of laser processes needed to machine the exact chemical composition of the solar cell. In such cases, the scanning unit is delivered together with a specifically selected fiber laser and operation of the whole unit is tuned to suitable parameters. This allows fast integration of laser processes into manufacturing and complete solution is provided from a single company.

The scanning unit incorporates:

• High performance gavanometer scanners
• Machine vision for precise wafer edge and rotation detection
• Beam shaping tools for effective use of clearance apperture
• Automated Z scanning unit (on request)
• Dedicated software for specific process
• Mechanical tilting assembly
• LED sample lighting
• Heavy duty and vibration free unclosure
• Control electronics

WOP-PV-F is a turnkey laser machine solution. Based on customers requirements, suitable fiber laser source is selected and integrated. Process development is possible in industrial WOP’s and associate laboratories, therefore customers might entrust all laser related questions to us. Our experience includes nanosecond, picosecond and femtosecond laser processing as well as machine vision solutions and integration.

Possible applications include:

• Laser Marking
• Edge Isolation
• Back Contact Laser Firing (BCLF)
• Wafer dicing

Product is engineered and assembled in Lithuania (European Union).

Keywords: Solar cells, fiber laser, cSi, photovoltaics, PV, laser marking, laser dicing, edge isolation, back contacts.