Burn-In is a screen for infant mortality. Since it is a screen it is
typically performed on 100% of the product that requires it. It is most
common in Hi-Rel applications such as airborne, military and space.  If
performed at or below the max rated operating temp there is no reason why it
should reduce reliability.

Regards,
Bruce Misner


> ----------
> From:         Bissonnette, Jean-Francois[SMTP:[log in to unmask]]
> Reply To:     TechNet E-Mail Forum.;Bissonnette, Jean-Francois
> Sent:         Thursday, February 15, 2001 1:14 PM
> To:   [log in to unmask]
> Subject:      [TN] Burn-in
>
> Are burn-in required on every units that come out of production or is it
> usually done on
> a sampling basis?  If it has to be done on every unit, why is that so?
> We're requested
> to do it on all units, by contract.  But some believe that is overkill...
> I'm among them.
>
> Any thoughts???
>
> Thanks in advance!
>
> JF
>
>
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