MANUFACTURINGLASERS
shading and resistance. It also increases throughput because it substitutes soldering with an anisotropy conductive polymer that allows the use of a pick-and-place process.
Other future laser applications include the selective ablation of passivated layers on crystalline solar cells. Lasers with ultra short pulses and high pulse energy are particularly well-suited because of their excellent beam quality.
Only disk laser technologies fulfill such criteria right now. Because of the simple scalability of the laser output, a higher production throughput can be achieved, and the high beam quality in the ultra short pulses significantly improves solar cell efficiency.
For the scribing process the evolution of laser sources and the introduction of active beam controls can help to increase the performance and reliability of the laser process. For large area removal process the increase in process speed must be the main focus. New high energy sources can contribute to this goal.
Another factor is the increase in the number of laser sources per tool fulfill the throughput required to provide a significant increase in
competitiveness. Laser technology has made inroads in photovoltaic production and has used its selective contact free procedures to replace some other processes. The cost pressures associated with the production of solar modules will drive the spread of high-performance lasers with high average power for large-scale processes. The cost per watt of solar cell power will shrink significantly in the future thanks to the laser.
© Angel Business Communications Permission required
The editor would like to thank the following for their input into this First Choice in microMachining
Mr. Thomas Kießling Key Account Manger PV, 3D-Micromac
Accuracy and precision are areas where lasers make an impact
23
Dr. Paulo Ventura, Product Development and Reliability Manager, Technology R&D Dep., Resp. Desarrollo Producto y Fiabilidad Dep. de Tecnología T-Solar
Tom Hausken, PhD Director, Photonics and Compound Semiconductors Strategies Unlimited
Dr. Gediminas Raciukaitis,
Andrew B May Managing Director, Rofin UK
Head of Laboratory for Applied Research Center for Physical Sciences & Technology (CPST) & Consultant on Laser Technology, EKSPLA UAB, Lithuania
Rogelio Nochebuena, Adjunct Faculty, Professor of Strategy, Pepperdine University
Holger Kapp, Press and Public Relations, TRUMPF GmbH
www.solar-pv-management.com Issue I 2011
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