Alton, Are you talking about the ripples on the sidewall caused by standing wave interference pattern, or the line edge roughness seen from the top due to the resist's molecular roughing/photomask pattern roughness? Regards, Isaac On Fri, 29 Sep 2006, Hsiu-Jen Wang wrote: > Hi, > > "high resolution sidewall" means the roughness of the surface of > the sidewall is in sub-micron, even down-scale to sub-100nm. > > Alton Wang > University of Washington > > > On 9/29/06, Roger Shilewrote: > > Pray tell what is a "high resolution sidewall"?