Hi, I have created my own standard-cell library using alliance. For each cell I have generated a .ap, a .al and a .vbe file. However I have a doubt about the meaning of some parameters in the header of the behavioural description. My question is: in which units are expressed area, and input capacitances? I suppose that resistances are expressed in ohms whereas rising and falling times in picoseconds but I have no idea of the metric you use for cell area and input capacitance. Also, I am using alliance 4.0.6 and the academic versions of Hitas and Yagle are still unavailable. Is it possible to use the library with a previous version of these tools? Thank you very much!!! Best regards, --Gianluca