Cold/Heat
On Mon, 16 Jan 2006 21:26:35 GMT, gwb wrote:
+On Mon, 16 Jan 2006 03:27:51 GMT, james wrote:
+
+On Sat, 14 Jan 2006 18:46:25 GMT, Lancer wrote:
+
++Thats total bull****...What happens if your tip has a 1,000 of static
++on it? ESD control is supposed to eliminate the difference in
++potential. ANSI ESD standards state that "everything should be at the
++same potential" That means the operator or person, all test equipment
++and irons. Why don't you do a search on ANSI ESD standards and find
++out for yourself... You are cluesless about ESD...
+****
+
+IF you are properly grounded, once you grab the handle of the
+soldering iron it will within seconds no longer be at 1000 volts
+potential. Maybe you should also read your Ansi Standards a bit more
+and understand static prevention. Once you are grounded touching any
+other ungrounded object will dissapate the charge built in it. That
+charge will drain through your body to ground within a very short
+period.
+
+Besides most ICs can shrug off 1KV with no damage. It is neat to see
+what a 15KV jolt does to the poly layers and the protective zeners on
+an IC. If you ever get a chance to do some electron scanning of static
+damage to the die pad area of an IC, do so. It is a really neat to see
+what 15KV can do.
+
+james
+
+you evidently have never worked for a large company such as Northern
+Telecom. If you mentioned you understanding of ESD during an
+interview they would laugh you out the door. You are 30 years behind
+in your ESD knowledge.
******
Actually more like four or five years behind. I will admit that I am
not fully abreast on the 1999 ANSI standards.
Son I have worked in enough ESD sensitive areas for the better part of
23 yrs. You and others are very good in quoting standards, but have
really failed to understand what ESD is, how it generates and what is
needed to combat ESD. Various areas of the US is far more suspectable
to ESD than other areas of the US. Cold dry areas are more susceptable
tham humid and warmer areas.
My knowledge of ESD is good enough that I do not have to worry if I
ever decided to work for a large corporation again.
james
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