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Re: [AVR-Chat] Bad batch of ATmega128's?

2010-05-31 by Dean Claxton

Thanks Bob,

I'll check with the board assembly shop to ensure they have ESD precautions
in place.

Dean

On Mon, May 31, 2010 at 7:41 PM, Bob Paddock <bob.paddock@gmail.com> wrote:

> On Sun, May 30, 2010 at 9:32 PM, Dean Claxton <deanclaxton@gmail.com>
> wrote:
>
> >
> >
> > Has anyone come across this sort of thing before? I've checked with the
> > boardhouse that is assembling the PCB's and they have their ovens set up
> > correctly so I'm thinking that it must truly be a bd batch of parts.
> >
>
> Check your static controls.  Humidity has changed for the summer season,
> there is also counterfeit ESD stuff showing up now.  Like we didn't have
> enough problems with counterfeit parts.
>
> Do the A/D pins that are failing have a more direct path to the outside
> world than other pins?  That would fit the ESD hypothesis.
>
>
> http://blog.softwaresafety.net/2010/05/counterfeit-esd-products-guide-on-emc.html
>
>
> http://blog.softwaresafety.net/2010/04/software-bug-or-electrostatic-discharge.html
>
>
> --
> http://blog.softwaresafety.net/
> http://www.designer-iii.com/
> http://www.wearablesmartsensors.com/
>
>
> [Non-text portions of this message have been removed]
>
>
>
>  ------------------------------------
>
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-- 
Kind Regards
Dean Claxton


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