24 Jul
2012
24 Jul
'12
10:55 p.m.
On 25 Jul 2012 at 1:36, William Donzelli wrote:
Being *too* conductive is not ESD safe. The idea is to
let the charge
drain away slowly. If a charge drains too quickly, it can induce a
charge nearby that might not be protected, like something internal to
a component.
So that black (carbon-impregnated) foam used for ICs isn't ESD-safe
becasue the resistance is only a hundred ohms or so per square inch?
I remember when early MOSFETs were shipped with the leads connected
together by a small jumper. You installed the FET and then clipped
the jumper, Odd and disastrous things could happen if you forgot to
remove the jumper.
--Chuck