Dear jagaveer Do not worry about the problem. I have met this kind of problem for several times. When the IC is soldered on the PCB, the dc resistance between power and ground is very small. However, I am not sure the reason. The IC vendor did not explain it:( Best Regards Zhangkun 2006.2.3 ****************************************************************************************** This email and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! ***************************************************************************************** ----- Original Message ----- From: jagaveer25 <jagaveer25@xxxxxxxxxxx> Date: Friday, February 3, 2006 12:25 pm Subject: [SI-LIST] help me > Hi folks, > > > I have done in one PCB. It is 12 layer board > > I have used 4 digital signal processor and one field programmable > gate array for this pcb . > > Dsp side I have used 3 pwr supplies > > 1v > 1.5v > 2.5v > before I have populated that dsp I have checked between the all > pwr > supply and gnd resistance is very high resistance but > after I have populated that 3 dsp I have checked between the > 1Vpwr > supply and gnd resistance is only 3 ohms > > my 1v pwr section is 20A design > > I can't understand this type of problem > Can u give any solution for this problem I have appreciate it > > Thanks > V.jagaveer > > > > > ------------------------------------------------------------------ > 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