ET900 00:39:00 50 wafer spread (expect about 920A) Front = 908A, Std Dev = 7.3 Front Center = 948A, Std Dev = 6.9 Back Center = 974A, Std Dev = 4.7 Back = 1000A, Std Dev = 4.7 Average All = 958A Std dev much better than last month, but wafer-to-wafer uniformity is very close to out of spec.