Sean,
I believe they can be plated but in previous post about fan tray a
countersink for a
flat head screws was used, and again I believe the answer was they could do
it, not as sure
about if you are looking at a countersink with verticle entry on edges.
There might be a build up of  in the corneres?? Which if countersink is big
enough that may not be an issue. Talk to your fab vendor.
Also another post point out a good point to make sure of proper clearance on
all layers.
Bob

Robert M. Wolfe, C.I.D.
203-261-2182
[EMAIL PROTECTED]
----- Original Message -----
From: "Sean James" <[EMAIL PROTECTED]>
To: "Protel EDA Forum" <[EMAIL PROTECTED]>
Sent: Wednesday, January 09, 2002 11:28 AM
Subject: Re: [PEDA] Countersunk holes


> Can the holes be plated?
> Sean James
> PCB Designer
> Telecast Fiber Systems, Inc.
> 102 Grove Street
> Worcester, MA 01605
> (TEL) 508.754.4858 x33
> (FAX) 413.541.6170
>
> ----- Original Message -----
> From: "Watnoski, Michael" <[EMAIL PROTECTED]>
> To: "'Protel EDA Forum'" <[EMAIL PROTECTED]>
> Sent: Wednesday, January 09, 2002 9:09 AM
> Subject: Re: [PEDA] Countersunk holes
>
>
> > Hi Sean,
> >
> > All I ever had to do was call out the countersinks on the fab
> > drawing.  The board house took care of the countersinks as a post
> > fabrication operation.  Be sure to allow adequate clearances around the
> > holes on all layers.
> >
> > Michael
> >
> >
> > -----Original Message-----
> > From: Sean James [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, January 09, 2002 8:15 AM
> > To: Protel EDA Forum
> > Subject: [PEDA] Countersunk holes
> >
> >
> > This may be a long shot - Has anybody konw if it's possible to use c'sk
> > holes on a PCB?
> > Sean James
> > PCB Designer
> > Telecast Fiber Systems, Inc.
> > 102 Grove Street
> > Worcester, MA 01605
> > (TEL) 508.754.4858 x33
> > (FAX) 413.541.6170
> >
> >
>

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