Hello everyone, Does anyone have a rough estimate or a first order equation that calculates the inductance of a reflowed solderball with a base diameter of 100um and a height of 70um. Can this structure be approximated to a cylindrical one? I appreciate any response and input. Firas S. Azrai Electrical Engineer Integral Wave Technologies 108 Wild Basin Rd. Suite 218 Austin, TX 78746 Tel : 512-416-9700 Fax: 512-437-2792 ------------------------------------------------------------------ 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