CPC C30B 19/10 (2013.01) [C30B 29/46 (2013.01); C30B 30/00 (2013.01)] | 11 Claims |
1. In a crystal growth furnace having an array of vertically arranged heaters to provide controlled heating zones within a chamber, and a crucible for holding crystal material, wherein the crystal is grown vertically through the heating zones, the improvement comprising:
a laser mounted outside the chamber that radiates a beam of energy to locally melt precipitates and inclusions.
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