21 Oct
2010
21 Oct
'10
9:59 a.m.
On 21 Oct 2010 at 7:25, Dan Roganti wrote:
while this is true, with just handling these devices
between parts
bin, it's still relative, once these are embedded in equipment and
installed in a facility, however remote, deep in a navy submarine or
atop a mountain observatory. You still needed to follow static
precautions as far back when digital logic was first used because the
level of static discharge can potentially increase when in presence of
the various building materials in and around the computer equipment.
I don't follow what you're saying. I said that HTL should, as far as
I can determine, have similar ESD tolerance as other bipolar logic.
I did NOT say that you can crank up the steam heat on a subzero
winter day, rub your rubber-soled shoes over the wool carpet and zap
away. Or play fast and loose with the hipot tester.
You'd use the same precautions, in-circuit or out, that you'd use
with any bipolar logic chip, be it HTL, DTL, RTL or TTL. No special
precautions or lack thereof because it's HTL.
Old MOS parts are in a different category, usually requiring
different handling.
--Chuck