[SI-LIST] Re: How to solve short circuit issues in high dense pcbs

  • From: Danny Damhave <dd@xxxxxxxxxxx>
  • To: si-list@xxxxxxxxxxxxx
  • Date: Tue, 1 Nov 2011 19:31:20 +0100

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
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