Hallo, does anyone know if there is a photoresist or photosensitive polymmide that can resist a 30 hour etch in KOH or TMAH? Can you also suggest the best etching conditions for the highest selectivity for that matirial and silicon? Thank you very much. Michele ______________________________________________________________________ Yahoo! Mail: 6MB di spazio gratuito, 30MB per i tuoi allegati, l'antivirus, il filtro Anti-spam http://it.yahoo.com/mail_it/foot/?http://it.mail.yahoo.com/