Merck KGaA and Schiller Automation Unveil Innovative Solar Cell Edge Isolation Concept
Merck KGaA and Schiller Automation Unveil Innovative Solar Cell Edge Isolation Concept
  • Korea IT Times
  • 승인 2010.04.22 09:50
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Darmstadt/ Germany, April 8, 2010 - The partnership announced last September between Merck KGaA and Schiller Automation GmbH & Co. KG has led to a new concept for edge isolation. Schiller Automation will present the prototype for this innovative equipment to the public for the first time at its stand at the Photon Technology Show 2010 being held in Stuttgart from April 27-29. The fully automated process for edge isolation of crystalline silicon wafers uses a product from the etching paste program developed by Merck - isishape SolarEtch® SiD.   

The new concept, aimed at reducing per-watt production costs, has been tested in cooperation with various partners from industry and research. Based on the promising results, a prototype (SE lab) of the production equipment has been built for a pilot line, which will be presented to industry experts at the trade show.  

The process designed by Merck and Schiller offers numerous advantages over traditional edge isolation methods, in particular comprehensive wet chemical isolation and laser isolation. With the newly developed application concept, isishape SolarEtch® SiD can be applied to the back of the wafer quickly and precisely.   

"We're delighted that we have been able, in partnership with Schiller Automation, to implement our process for mass production in such a short time. With the SE lab pilot line, which will start operating in our applications laboratory in Darmstadt following the trade show, we will now be able to give cell manufacturers the opportunity to test the process and to confirm the advantages of our edge isolation process in a realistic production setting," said Dr. Ingo Köhler, Head of R&D Structuring Solutions at Merck. 

During their collaboration in the project, Schiller Automation used its long experience in manufacturing processes to support Merck in developing a stable and reliable process. Top priority was placed on reducing total production costs per watt, i.e. on high productivity and yield. 

"Now Merck is able to process customized wafers under mass production conditions. Through the cooperation with Merck, we can offer companies in the photovoltaic industry a lower-cost, future-oriented solution.  In the next phase, plans call for the line to be scaled up for volume production with throughput of 3,000 - 4,000 wafers per hour," said Karl-Heinz Bahnmüller, Director of the Customer Center at Schiller Automation.  

The equipment's flexible automation makes it easy to customize the machine for integration into the production of individual customers, and in addition to edge isolation, it also features great potential for other innovative cell concepts such as metal wrap through (MWT) cell design.  

The SE lab line will be presented at the Schiller Automation exhibition stand (Stand J2) in Hall 4. Experts from Schiller and from Merck (Stand J1, Hall 4) will be available to answer any questions about the equipment or about the edge isolation process.


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