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Sapphire And Silicon Carbide Solutions >> surface contaminate solution >> Surface Contaminate Solution
Wafer surface oil, it is difficult to detect, even if the KLA is also difficult to judge. It is mainly due to the detection principle…... If polluted wafer been utilized to extension, it will seriously affect the quality of the LED, and decrease wafer yield. So, if you want to exclude pollution detection, there must need a professional device to judge.
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