Hello All, I want to find out the absorption spectrum of photoresist AZ5200, AZ4620, Shipley 1400, Shipley1800, and SU-8. Can anyone suggest me some web sites or books? Thanks in advance. Regards. Yh ----------------------- Yahong Yao L245, CESTM 251 Fuller road Albany, NY 12203 Tel: (518)437-8728(o) Email:hhelen@hotmail.com ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com