...oh I'm sure you'll get a million responses to this one.... The real reason not to do this is because of the extra capacitance from the extra width of the trace at the corner when using big fat traces. This excess capacitance will cause some delay if you have a significant number of right angle bends. They may also add some skew in differential routed lines if not routed evenly. Craig -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of New Bee Sent: Monday, August 30, 2004 3:49 AM To: si-list@xxxxxxxxxxxxx Subject: [SI-LIST] 90 degree bend Hi I am a new PCB designer. I have a silly doubt - really do not know if I ask it in this forum. why is it suggested not to have 90 degree bends for the traces while routing ? If some one can give me the electrical/electronics and manufacturing reasons I will be greatful to them If this is not the right forum to address this please let me know where can I ask Thanks in advance Kam Yahoo! India Matrimony: Find your life partner online. Yahoo! India Matrimony: Find your life partneronline. ------------------------------------------------------------------ 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 ------------------------------------------------------------------ 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