Meyer Burger (SIX Swiss Exchange: MBTN) has been shortlisted for the Solar Award 2014 in the category “PV tool award” for its GridTOUCH contacting system and in the category “PV process award” for its enhanced wire winding system Diamond Wire Management System (DWMS).
Meyer Burger’s competence centre for measurement technologies, Pasan SA, has been shortlisted for its patent pending GridTOUCH contacting system which is a unique solution that addresses the new market requirement of contacting busbarless cells for IV/EL performance measurements. This innovative system is a measurement jig consisting of an upper frame and a bottom plate, both of which are outfitted with a wire grid. The grids are aligned perpendicularly to each other; ensuring both an optimum connection of all fingers on the front side of the solar cell as well as a highly accurate evaluation of the fill factor (FF) and other key IV parameters. The GridTOUCH also ensures that the shadowing on the cell is minimised and that the IV measurement is both precise and highly reproducible. The system enables customers to perform the most accurate sorting of busbarless cells at lowest cost.
The Diamond Wire Management System (DWMS) is an enhanced wire winding system which has been uniquely designed for Meyer Burger diamond wire saws. The DWMS is marketed under the name of DW288+ as an integrated option for the successful DW288 platform for mono and multi silicone wafering in the PV industry. During cutting, the wire is wound and unwound on spools on each side of the wire web. Without DWMS, the aggressive wire is wound directly in overlapping windings onto the storage spool and can therefore damage itself. The innovative DWMS design separates the spool into a supplier (storage) part and a working part. On the working part, the wire is wound in non-overlapping windings with a minimal pitch. This completely eliminates wire to wire contact, thus maintaining wire sharpness and extending the life of the wire.
