Hi, I want to use CYCLOTENE resine BCB-4000 as protective coating during silicon etching in pottasium hydroxide KOH at 85C, which must be removed at the end of processing. It will be very helpful if anyone can give information about this BCB process. Thanks and Regards, Mohamed SAADAOUI Laboratoire d' Analyse et d' Architectures Systemes LAAS- TOULOUSE. france