hii, you can make the exposure time around 50 seconds and softbake for 100 degrees for about half an hour regards rakesh Amani Salimwrote: Dear Colleagues, I am trying to make a very thick photoresist (using 1075 positive thick PR) and eventually will exposed it using a clear field mask, the thickness am looking so far is from 30-100 microns, if anyone has any tips for me to make this process a success (exposure time, soft bake and post bake temp and time, ect..), that'll be great, thanks Amani Salim ****************************************** Research Assistant Department of Electrical and Computer Eng. U of Minnesota,T.C. UMBM Lab Office phone: 612 626-0590 Lab phone: 612-626-7188 _______________________________________________ MEMS-talk@memsnet.org mailing list: to unsubscribe or change your list options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk Hosted by the MEMS Exchange, providers of MEMS processing services. Visit us at http://www.memsnet.org/ Yahoo! India Matrimony: Find your life partneronline.