Be careful applying IR camera for short localization. Cross-section (and
impedance) of the sustained pathway may NOT support the current required
for an effective IR imaging and subsequent localization.Start by
identifying the offending nets and walk through (virtually) to locate the
higher opportunity neighborhoods. From there, apply a lock-in IR (you will
need pulse generator, power supply and a few other HW w/IR camera
(Breitenstein, O., Langenkamp, M., Altmann, F., Katzer, D., Lindner, A., &
Eggers, H. (2000). Microscopic lock-in thermography investigation of
leakage sites in integrated circuits. *Review of scientific instruments*,
*71*(11), 4155-4160) or go the SQUID way (Sood, Bhanu, and Michael Pecht.
"Conductive filament formation in printed circuit boards: effects of reflow
conditions and flame retardants." *Journal of Materials Science: Materials
in Electronics* 22.10 (2011): 1602.). Once localized, cross-section
laterally (in case of inner layer short) to the suspect shorting site.

On Tue, Jun 5, 2018 at 11:44 AM, <[log in to unmask]> wrote:

> Hello Fellow TechNetters:
>
>    I didn't get too many responses on my initial above inquiry.
>  Therefore, I will post once again.
>
> Victor,
>
> From: Hernandez, Victor G
> Sent: Wednesday, May 16, 2018 1:24 PM
> To: TechNet E-Mail Forum
> Cc: Hernandez, Victor G
> Subject: PCBA Short detection/isolation, Flir IR Thermacam SC2000, Thermal
> Imaging
>
> Fellow TechNetters:
>
>    Does anyone out there have experience that they can share on the above
> stated subject?    I can be contacted off line if so desired.
>
> Victor,
>



-- 
Bhanu Sood
Tel: (202) 468-8449