ard at p850ug1.demon.co.uk
Thu Oct 21 15:07:09 CDT 2010
> Maybe a retarded question, but how static sensitive are HTL chips?
I would guess no more sensitive than any other bipolar logic familes. I
douvt theu're particuarly small-juction devices.
Any semiconductor device -- yes, even a bipolar signal transistor -- can
be damaged by static. Put it this way, if you discharge a lage leyden jar
across the pinsof a 7400 on a 2N3904, I doubt it would still work. But
some, of cours,e are more sensitive than others. MOS devices are more
delicate thn bipolar (the oxide insualting the gate electrode can be
punctured fairly easily), and the smller the active device, the more
delicate it is (it will have a smaller capacitance, so for a given charge
oyu get a higher voltage across it).
But since we've had bipolar devies for years in untreated expanded
polystyrene (sytrofoam)m, etc, I wouldn't worry too much about the HTL parts.
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