Company Name: Xiamen Powerway Advanced Material Co., Ltd
Tel: +86-592-5601404
Fax: +86-592-5745822

Address: #3007-3008, No.89, Anling,Huli Developing Zone, Xiamen,China
2-12.Edge Exclusion

2-12.Edge Exclusion

The outer annulus of the wafer is designated as wafer handling area and is excluded from surface nish criteria (such as scratches, pits, haze, contamination, craters,dimples, grooves, mounds, orange peel and saw marks). This annulus is 2 mm for 76.2 mm substrates, and 3 mm for 100.0 mm substrates.