Hi Kiruba If not already done it is also a good idea to check the orientation of all the ICs and that all land patterns for the ICs are correct (right pitch etc.) I have seen both causes shorts. BR Danny Damhave On 31/10/2011, at 09.01, rskiruban wrote: > Hi All, > One of my board having a short circuit (Zero Ohms) across a power supply > (That supply connects to thousands of decoupling capacitors and 44 BGAs) and > Ground. Is there any method to identify the route cause for the short > without removing any components? > > Note: > #### > 1. The board is not yet powered on. > 2. It was verified that the PCB doesn't contains any short across supplies > before board assembly. > > > Thanks and regards > Kiruba Sankar > Project leader > Hardware Design & Development > Email: rskiruban@xxxxxxxxxxxxxxxxxx > web: www.datapatternsindia.com > **************** CAUTION - Disclaimer *****************This email may contain > confidential and privileged material for the > sole use of the intended recipient(s). Any review, use, retention, > distribution or disclosure by others is strictly prohibited. If you are not > the intended recipient (or authorized to receive for the recipient), please > contact the sender by reply email and delete all copies of this message. > Also, email is susceptible to data corruption, interception, tampering, > unauthorized amendment and viruses. We only send and receive emails on the > basis that we are not liable for any such corruption, interception, > tampering, amendment or viruses or any consequence thereof. > *********** End of Disclaimer ***********DataPatterns ITS Group********** > > > ------------------------------------------------------------------ > 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 technical documents are available at: > http://www.si-list.net > > 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 > > ------------------------------------------------------------------ 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 technical documents are available at: http://www.si-list.net 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