JW wrote:

Hello,

When doing repair work, I often run into components that fail to work
properly when they heat up. Usually, I use freeze spray to try to localize
the problem, but it's getting to the point where components are becoming
so close together that the freeze spray affects too many devices on the
PCB. Does anyone know of a off-the-shelf device or piece of test equipment
that would allow one to heat up individual components on a circuit board?
something that would have a tip maybe 3 to 5mm. square or so, and have a
controlled output from 40-100c.

Thanks for any suggestions.

If a soldering iron and a can of freezer spray is not "professional" enough,
there is a machine called a thermostream, but it is about 3ft x 2ft x 4ft
in size and fairly expensive, and needs compressed air supply. It can
do -40 to +150 degrees C easily. There are various nozzles available but
somehow I think you would be better off with maybe a hot air reflow system.

http://www.temptronic.com/Products/T...m_Overview.htm

Chris