PCB Fault Finding

Authors:

Geoffrey Hunter

Published On:

Aug 22, 2013

Last Updated:

Aug 22, 2013

Solder Bridges

Solder bridges are unwanted flecks of solder that cause shorts between two or more tracks on a PCB.

A solder fleck between two microcontroller pins, causing a short.

Flux residue ontop of some microcontroller pins.

Flux Residue

PCB soldering flux is designed to be as PCB-friendly as possible, but flux residue from soldering can still cause problems in the long run (e.g. accelerated corrosion, moisture absorbtion leading to conduction).

Flux residue ontop of some microcontroller pins.

A solder fleck between two microcontroller pins, causing a short.