Re: [CAD_CAM_EDM_DRO] conductive adhesive as alternative to solder?

urstest wrote:

> I hate soldering smt chips. Have anyone try using conductive
> adhesive to glue these chips to a broad?

Broad? Hmm, we're getting VERY far off topic, here.

Well, I don't know of anyone who uses conductive epoxy for attaching
electronics. I have some conductive epoxy with silver in it, that we use
for grounding very fragile detectors. Sometimes it becomes non-conductive
when it sets. Then, you have to start over. It has a shelf life (by the time
I get it) of about 6 months before it turns hard in the tube (whether the tube
has ever been opened or not). It costs $19.00 for two TINY tubes with
about 1 CC each!

I really don't recommend such a thing. I have perfected hand soldering SO
and even SSOP and high density quad flat packs down to .5 mm
pin spacing. A VERY small soldering iron, very fine solder wire and
a strong magnifier are needed, plus a good collection of tweezers.
I put heat shrink tubing on the handles of the tweezers to give them
a better grip. Nothing like having the tweezers flip sideways between
your fingers and fling a $30 chip across the room! When the inevitable
solder bridge ocurrs, you need some fine solder wick.

Jon