https://gistexel.com/wp-content/uploads/2014/08/logo_exel.gif00exelhttps://gistexel.com/wp-content/uploads/2014/08/logo_exel.gifexel2014-08-29 11:11:552014-08-29 11:12:00"Simultaneous Measurement of Six layers in a Silicon on Insulator Film Stack using Spectrophotometry and Beam Profile Reflectometry,” J. Appl. Phys. 8, p.3570, 1997