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March 2003

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Subject:
From:
Ted Kong <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 31 Mar 2003 15:25:14 -0800
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text/plain
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Hi Ezequiel,

Are those 5 mil hole blind vias?  How thick is the
board?

Ted
--- Ezequiel Cruz <[log in to unmask]> wrote:
> Could someone help me with the following.
> I have a BGA with 5 mil (.127 mm) holes through the
> entire stack.
> I need these silver filled plugged.
> I need the correct call out for my notes on this
> procedure.
>
> I also have a requirement to have this design
> finished in gold. My regular
> board house calls this finish "Gold Body". However,
> I really need the
> thickness call outs since this finish is being used
> for manufacturing and
> reliability issues per the above BGA. But I also
> have an area for a mix
> connector which should increase the thickness of the
> finish in that area
> since these will be surface contact pads.
>
> If there is anyone out there who can help me with
> these issues, I really
> appreciate the feedback.
>
> Thank You,
> Ezequiel Cruz
>
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