Hi SI virtuosi, I am new to this group and to this field too.I have a doubt thats buzzing my mind.I know you people could help me out. My question is Its always said that GND acts as a return path for a signal.Do all the signals know that they have to return back through GND and not through anyother track in the signal layer having lower impedance? What are the factors that are taken into consideration to make sure that signals return back through GND. Waiting for your reply Thanks in advance, Nikita ------------------------------------------------------------------ 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