Hi, We had a funny surprise when we received the bare pcb of a prototype. The PCB fab changed the via pad from a typical round shape to an enlarged square one. It tickle our mind and came to a quick conclusion that it won't affect much the signal integrity. My question here is: Is this a more effective way to build PCB (in term of yield)? Is there any pitfall related to this technique? best regards, Marc-André Filion, Eng | Hardware designer | Kontron Canada | T 450 437 5682 x2243 | E marc-andre.filion@xxxxxxxxxxxxxx <mailto:marc-andre.filion@xxxxxxxxxxxxxx> Kontron Canada Inc 4555 Rue Ambroise-Lafortune Boisbriand (Québec) J7H 0A4 The information contained in this document is confidential and property of Kontron Canada Inc. Any unauthorized review, use, disclosure or distribution is prohibited without express written consent of Kontron Canada Inc. If you are not the intended recipient, please contact the sender and destroy all copies of the original message and enclosed attachments. ------------------------------------------------------------------ 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 forum is accessible at: http://tech.groups.yahoo.com/group/si-list List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu