Hi, does any one know of an equation to estimate the inductance for the package balls? One way is to approximate the balls as vias (averaging the radii, to approximate the via radius) and then using the equations for via inductance given by Howard Johnson in his book for a single return path, which will be the nearest VSS ball. But I am not very sure as to how close this value will be. Are there any other equations or a mathematical approach to do the same? regds, Mayank _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com ------------------------------------------------------------------ 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 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