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October 2001

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Subject:
Re: HASL Plating Thickness
From:
Larry Tawyea <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 19 Oct 2001 15:36:34 EDT
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In a message dated 10/18/01 5:18:09 AM Central Daylight Time,
[log in to unmask] writes:

Christopher,

A thickness of 3.5 mils seems a little high but in my experience 2.5 mils
would not be out of the question.

Larry Tawyea


> Hello All,
>
> Is there any specification regarding the max thickness of HASL plated
> PCB's. We have recently received a lot of boards where the HASL plating on
> the fine pitch device exceeds 3.5 mils. He have an extensive amount of
> bridging on these devices now. Any help would be greatly appreciated.
>
> Thanks
>
> Christopher Lampron
>
>

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