Hi, All A Hspice examle as below; Vin in1 0 pulse 3.3 0 5n 0.5n 0.5n 25ns .material ..................... .shape ..................... .................................. ..................................... ......and then we can get a rlgc table from hspice field -solver, I wonder how do we determine the frequency, rise/fall time of this pulse function?? thanks! ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu