10 Mar
2011
10 Mar
'11
7:06 p.m.
Ian wrote:
Yes, and it's especially bad on the ceramic
packages with the
fragile side-attached legs - not the ones that exit the package
and then bend 90 degrees down, but the ones that are simply
attached to the side of the chip body. Don't know what they're
called or how better to describe it...
"Side-brazed".
However, when the leads break off or fall off due to corrosion, at least
you can (relatively) easily come up with a replacement. When the leads
break off of a DIP with a normal lead frame, it often is right at or
even inside the point that the lead exits the package body, and is much
more difficult to replace. Through carelessness with a logic analyzer
probe I accidentally broke off a lead from an ASIC in an old system, and
there was no way to get a replacement other than to buy another used
machine. A friend surprised me by succeeding at repairing it with
conductive epoxy.
Eric