[sdiy] Sudden IC death?

[tu at alphalink.com.au]

Yes, it is possible for static discharge to cause this sort of failure. Was the environment very dry there? Why was the case open rather than closed? 
Over voltage applied to the chip, either through power supply or signal lines, or shorting of high currents through the switches could also be a cause. 
Check the circuit includes adequate current limiting resistors, bypass capacitors, clamping diodes etc around these chips. Or perhaps you just got a bad 
batch.... 

/Tristan

On Mon, Sep 20th, 2010 at 10:55 AM, Karl Ekdahl <elektrodwarf at yahoo.se> wrote:

> Hi list
> 
> So i'm doing this sound installation and when i was to install my piece it
> didn't work, turns out that *all* of the 74HC4066's in my circuit had
> blown for no apparent reason - so i'm just wondering, what would do this?
> The whole thing stayed in it's (open) case all the time, i didn't rub it
> in cats or anything but my only guess is some weird static electricity
> shock?
> 
> Oh and for anyone who's in the Baltimore area the coming week; i'm
> installing at the High Zero festival which is a festival of improvised and
> experimental music - come and rejoic --> www.highzero.org
> 
> Karl
> 
> 
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