Hi CC, 8000A metal is very thick and you need 2.4um photoresist for it at least. I think you should try Su8 since it could be spinned at a thicker condition. COOLT 在2009-08-26?03:51:56,"Chih-Chieh?Cheng"??写道: >Hello?everyone, > >As?title,?has?anyone?ever?tried?lift-off?8000?A?gold?(or?any?other?metal) >using?PR?5214???The?thickness?of?gold?is?relatively?thick?so?I?am?wondering >it?may?not?work?perfectly. > >Thanks?for?your?time. > >CC