Hello Recently we are designing PCB @ 700 MHz (Digital) signals. In that we are using banding (As shown in attached picture)for length matching. As per thumb rule it should be more than 3X . But I am confused that X means track width or Track(PCB Copper) height? Anybody can clarify it? -- Binary/unsupported file stripped by Ecartis -- -- Type: application/msword -- File: 3w.doc ------------------------------------------------------------------ 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