UMG solar-grade silicon has potential, but stable quality and supply not there stable yet, say Taiwan makers

Nuying Huang, Taipei; Adam Hwang, DIGITIMES Asia Tuesday 18 November 2008 0

Solar-grade polycrystalline silicon (poly-Si) produced by using an upgraded metallurgical grade (UMG) process has been shown to have the potential of being used to make solar-grade poly-Si ingots/wafers, but quality and supply volume are not stable...

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