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
2-21.Usable Area

2-21. Usable Area

A cumulative subtraction of all noted defect areas from the frontside wafer quality area within the edge exclusion zone. The remaining percent value indicates the proportion of the frontside surface to be free of all noted defects (does not include edge exclusion).