Re: [sdiy] ESD

carsten at analog-monster.de carsten at analog-monster.de
Wed Dec 22 14:02:02 CET 2004


Hi Fredrik,

I never grounded myself and I never had any problems with CMOS ICs.
Well, I don't solder them directly, I always use DIP and sockets. But -
I also heard of clothing problems. In the company I work for a story
lurks around where a female operator made a mainframe crash several
times by wearing a special kind of underwear...so I think there might
be dangerous combinations of clothes.

Carsten
-- 
Analog-Monster!
Synthesizer DIY Project
http://www.analog-monster.de

Fredrik Carlqvist <ifrc at iar.se> schrieb am 22.12.2004, 13:13:05:
> 
> I just read a post about ESD killing blue LEDs. 
> 
> I have yet to see my first ESD fatality. I have done several large CMOS
> projects (80+ ICs soldered directly into the PCB). I must have soldered more
> than 1000 CMOS devices. Without a single IC failure. The only protection I
> use is cotton clothing and the occational grounding my right hand to the
> kitchen sink. My soldering station is not even grounded. 
> 
> Why is it that some have these problems and I don't? 
> 
> 1. Wearing synthetic fibre clothing?
> X. Wearing rubber soled shoes on plastic floors?
> 2. Using cat skin to clean the IC before insertion?
> 
> 
> Fredrik C



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