Experts, Who can tell me the relationship how much current can be carried by 10mil trace in inner layer and outer layer? Here there is a 4 layers' power module, in it, there is a 100mil trace in top layer paralleled with 80 mil trace in layer 3, can they carry 14A current? It's nice if anyone can provide a document for me on it. Thank you very much in advace, > Allan Zhao > > Lucent Technologies *Tel: (86)-21-5450-4555 Ext. 2518 *Fax: (86)-21-5490-2106 *E-mail: yzhao11@xxxxxxxxxx ------------------------------------------------------------------ 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 FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ 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