5 diff cleaned wafers, QUAL1150 recipe 9 point measurement on woollam 1: Mean 122.8A, Std Dev 2.2 2: Mean 124.4A, Std Dev 2.8 3: Mean 122.5A, Std Dev 2.5 4: Mean 126.1A, Std Dev 2.8 5: Mean 125.3A, Std Dev 3.9