Hi, I am using cadence 5.0.33 and assura 3.1 and I got the following error when I tried RC extraction for a circuit which has rfmos and/or mimcap. If the circuit doesn't have mimcap and rfmos the RC extraction works well. I checked previous e-mails and some people had same problems. But I couldn't understand their solution. Should I upgrade to assura 3.12usr1? What is the reason for this problem? Is it due to the technology file or the assura? Thanks for your help. Burak The Error: *FATAL* at "rex": res command file error - imcomplete *WARNING* Bad return status from RCX run. 0x1