WET900 00:39:00 50 wafer spread (expect about 920A) Front = 811A, Std Dev = 31.4 Front Center = 884A, Std Dev = 29.3 Back Center = 938A, Std Dev = 25.0 Back = 996A, Std Dev = 18.8 Average All = 907A Slightly out of spec. Std dev worse.