Dear Fellow, I'm working in failure analysis of Si components I need to reveal a junction with a RIE process I have Cl2,BCl3 ,CHF3 ,SF6 ,C2F6 ,N2 Ar ,O2 do you know something or a process which could etch faster doped (or undoped) regions (pressure,% of gas,RF power)? thanks Arnaud Margolli DGA - Celar division DIRAC-TECN failure analysis -ECE Dep + 33 (0) 2 99 42 66 06