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March 1999

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Subject:
From:
Rob Watson <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 1 Mar 1999 15:38:19 -0500
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Hey Stella,

From a rework standpoint I agree with Matthew, but in my past life of dealing with work for the automotive
industry you should really be careful with what type of rework you can do....  When we were doing work in
the automotive industry, we had to qualify all our processes with FMEAs and everything was documented, if
you deviate from that process thru any rework you may need to contact your customer to be sure that it is
okay to do so...

Just a few things to think about...
Rob Watson
Sanmina Corp.

Matthew Park wrote:

> Stella.
>
> I know this sounds silly.  Replace 805 pkg resistors with 605 pkg
> resistors.  Believe me it is a wiser option than fiddling with pull
> test, vibration test, reliability test....so on.
> Anyway, Who is your end-customer, GM, Chrsyler, Ford, Nissan
> or Toyota?  Hey, making sure my next car won't crash  on me
> with repair bills...
>
> Matthew
> Norsat International Inc.
>
> >>> <[log in to unmask]> March 1, 1999  7:56 am >>>
> Dear experts,
> We are building electronics for automotive industry.
> We have a number of boards where 0805 package resistors
> were placed and
> reflowed on the 0603 pads.  As the results there is no side
> concave solder
> fillet, only under the component terminations.
>
> What options other than scrapping the boards would you
> suggest? ( Rework:
> remove and replace. Do some testing (vibration, pull test??).
> Please, help
> Thank you, very much
> Stella N
>
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