Dear all, Does anybody know how polymer etches (isotropic or anisotropic) in: 1. Oxygen-based RIE 2. KOH (potassium hydroxide) Any details are appreciated. Regards, Miss Ghazal Hakemi PhD Student Microsystems and Nanotechnology Centre (Building 70) Cranfield University MK43 0AL tel. 01234 750111 x2583 P Please consider the environment before printing this email.