Thank Reuven,
Assuming OSP finish then my question.
Thanks,
Gil
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Reuven Rokah
Sent: Monday, December 02, 2013 1:23 PM
To: [log in to unmask]
Subject: Re: [TN] Press Fit Connector Drill size/finish size
Hi Gil,
If you have HASL finish, the final hole size does not reflect the required press fit hole size.
I you have OSP for example, the final holes size of PCB is the same as the press fit requirements.
On Mon, Dec 2, 2013 at 1:01 PM, Zilber Gil <[log in to unmask]> wrote:
> Hi all,
>
> Press-fit manufacturer / spec /mil (i.e. mil-c-28859B) define the
> requested drill diameter and final diameter (and minimum copper and
> plating thickness). In may cases the PCBs manufacturer asked us to
> drill bigger diameter holes in order to get the requested final finish
> hole (manufacturer process standard). My question is why press-fit
> manufacturer/std define drill hole diameter and not finish hole
> diameter and minimum copper thickness? What could be wrong if
> approving manufacturer request (bigger drill diameter, control final finish)?
>
> Thanks
>
> Gil Zilber
> Elta system Ltd.
>
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