Problem woollam SNF 2010-10-20 11:36:29: Reading and graphs are all over the place

jperez at jperez at
Wed Oct 20 11:36:30 PDT 2010

Oxide wafer visually looks great, but readings on Woolam read 
different. Scanning (wavelength) all over the place. Reversed
wafer and every site measured differently. Took a good wafer
measured on Oct. 14th and not reading and wavelength make no

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