Green energy
Meyer Burger sues China firm over diamond wire management patent
Nuying Huang, Taipei; Adam Hwang, DIGITIMES
Wednesday 14 February 2018

Meyer Burger Technology has had a subsidiary file a patent infringement lawsuit against China's Wuxi Shangji Automation for alleged infringement of the Switzerland-based firm's Chinese patent number CN 104411434B for its Diamond Wire Management System (DWMS) wire winding system.

Filed in China's Nanjing Intermediate Court, the suit charges that Wuxi Shangji Automation's wire saw WKS027BL infringes Meyer Burger's patent rights associated with the DWMS.

The firm said the patented DWMS has been uniquely designed for Meyer Burger's diamond wire saws. The DWMS technology is available as an integrated option on all Meyer Burger DW288+ and DW288 Series 3 cutting platforms for both mono-Si and poly-Si PV wafering, it said.

Meyer Burger had over 80% of the global market for PERC cell production equipment in 2016, according to industry sources. Due to growing competition, Meyer Burger's market share slipped in 2017 but remained the leader.

Demand for diamond wires has been rising in China, where PV firms have been keen to embrace diamond wire cutting and expanding production capacity. Currently, main China-based diamond wire makers are Yangling Metron New Material, Changsha Dialine New Material, Zhejiang Tony Electronic and Giga Diamond Materials established by Taiwan-based PV conductive paste maker Giga Solar Materials.

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