12-inch wafer ring

Wafer is the basic material of manufacturing semiconductor chips, get it after a long long crystal process silicon rod again after cutting, rolling mill, slice, chamfering, polishing, laser engraving, packaging, is the basic raw materials become integrated circuit factory - the silicon wafer. After so many processes, it is not easy to get the wafer, and the wafer is very important in the process of circulating storage. 12inch Metal Frame can be very good to fix the wafer in