Locating Shorts on Power Planes of Multi-Layer PCBs

[marshallh]

http://www.linear.com/solutions/5297

[Artlav]

Neat.
I thought it would be something about a thermal camera with a macro lens, while i was reading it. Dunno what gave me that impression.

[pickle9000]

that is cool.

[Richard Head]

Interesting approach. I expect a thermal camera would locate the fault very quickly.
Just the other day I was using a large electrolytic cap to blow open shorts on a two layer board. Plenty of microscopic shorts to the ground plane, The 0.2mm gap is a bit too small. The cap method is very effective for small shorts that a 3A PSU cannot blow open.
From now on I have opted for bare board testing at the PC board manufacturer.

Dick

[Bukurat]

Interesting

[mikeselectricstuff]

You could probably do it with an audio power amp and a microphone amp.
But a thermal imager is quicker!