Hi Expert, Has anyone ever really used *.pkg with IBIS model to do some = simulation, such as SSN? If so, can anyone let me know what's benefit we = can get from it? Myself prefer choosing IBIS model with package data for = pin R/L/C from itself, to any other package model like *.pkg or = S-parameter. If go to IBIS open forum to search all the ibis model, so = far I did not find any of them really using .pkg model with their ibis = model. If the chip get low pin count, I think it is easy to handle *.pkg = model because it is possible to verify accuracy for all the parasitic = effect. But for big chip, I don't know is there any way can handle that? For most of the application, I guess, probably it is not necessary to = provide .pkg model with ibis, because it may only provide one or two = order accuracy than per-pin R/L/C format in ibis. Tool compatibility may = be another issue. Best Regards, Eric Hsu Interface Technologies Netlogic Microsystems, Inc. 450 National Ave. Mountain View, CA 94043 650-961-6676 x198 This e-mail contains Netlogic Microsystems, Inc. Confidential = information ------------------------------------------------------------------ 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