John

We normally used HASL for this type of surface, but also used OSP and
immersion silver with success. In these cases we did use a star shaped
washer with a perforated edge that cut into the pad forming an air tight
gasket.

Best regards

Lee

J. Lee Parker, Ph.D.
JLP Consultants LLC
804 779 3389



----- Original Message -----
From: "John Parsons" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, June 26, 2006 1:20 PM
Subject: [TN] Plating Recomendation?


> Happy Monday!
>
>
>
> I have a customer (we are a fabricator) asking the following question;
>
>
>
> "..we are looking at making a board that is intended to be bolted to some
> batteries through 6mm and 8mm nuts and bolts. I was wondering if you have
> any recommendations on what sort of plating should be on the pads these
> nuts
> are going to screw down onto? The batteries are fairly heavy and the
> apparatus may be subject to some vibration and shock. Thanks for your
> insight."
>
>
>
> I am thinking HASL has been used for years in similar applications but
> does
> anyone have any experience or are there any studies on the matter?
>
>
>
> Regards
>
>
>
> John Parsons
>
>
>
>
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