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September 1998

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Subject:
From:
"Michaud, James (STP)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 11 Sep 1998 15:40:19 -0500
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I would be very interested in hearing the results, by SMT package type.
We're about to do Highly Accelerated Life Testing (HALT) on assembled
PCBs, to gather more data. Maybe we can do some technology interchange
here. James
> -----Original Message-----
> From: Mike Lang [SMTP:[log in to unmask]]
> Sent: Friday, September 11, 1998 12:57 PM
> To:   [log in to unmask]
> Subject:      [TN] Stress in SMT Components
>
> I am looking for data which will tell me the amount of strain
> that various SMT components can survive.
>
> I aim to take a PCB with SMT components, mount strain
> gauges to the PCB, and measure the strain transferred to the
> SMT components.  I then wish to compare this data to some
> "known limits" for SMT components in order to determine if I
> am in a "safe", "unsafe", or "marginal" zone.
>
> I would also like to hear of anyone else's experiences with
> similar issues.
>
> Thanks for your inputs.
>
> Sincerely,
>
> Michael Lang
>
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