The world market leader is in the passing lane: With the license for SCHOTT's PERC technology, SCHMID has rounded off its production-ready technology portfolio and now supplies systems and processes for cells with an efficiency potential of over 20%, available as an individual upgrade or complete turnkey production line.
Already in 2011, SCHOTT, in cooperation with SCHMID, had proved that an efficiency of 20.2% can be achieved with Passivated Emitter and Rear Contact (PERC) cells produced solely using industry-proved processes. The process can be used on various wafer materials – mono and multi-crystalline as well as quasi-mono – and can be combined with other processes like new metallization concepts.
For mono-crystalline cells SCHMID has now specified a 20%+ production process. SCHMID covers the key processes for its high-efficiency cells, i.e. alkaline texturing, selective emitter etching and rear side passivation, as well as metallization, with systems from their own development and manufacture, which offer substantial cost-of-ownership benefits. This is by no means a coincidence but rather the results of SCHMID's long-standing experience in the processing of crystalline silicon wafers and the consistent optimization of individual systems in relation to the overall process.