I think you can try to pre-coat PTFE before spincoating a photoresist and remove the coating afterwords. This would retain the original low surface energy of PTFE Nickolay Yiyi Zhang wrote: > Hi all, > Does anyone know how to significantly decrease surface > tension of photoresists, positive or negative, so as > to spin-coat onto wafers with very low critical > surface tension, such as PTFE? No surface > pre-treatment is allowed because we want to keep the > original low surface energy. Any suggestion is > appreciated. > > Thanks in advance. > > Yiyi Zhang > Department of Microgravity > Institute of Mechanics, Chinese Academy of Sciences > Beijing 100080 > Send your FREE holiday greetings online! > http://greetings.yahoo.com > _______________________________________________ > 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.mems-exchange.org/