As a user we do not permit the fiber exposed (falling off the edges).
 That is the precursor to edge delamination during further processing at the
assembly level.


> -----Original Message-----
> From: Timothy Reeves [SMTP:[log in to unmask]]
> Sent: Tuesday, January 23, 2001 2:11 PM
> To:   [log in to unmask]
> Subject:      Re: [IPC-600-6012] Nonconforming Condition for Nonmetallic
> Burrs?
>
> I would say the key is answering the question "does the condition affect
> form, fit, or function?", as the IPC-A-600F states. If not, then accept
> it;
> if it does, then reject. I would suspect that it does not, but that is
> best
> left for the customer to decide.
> Tim Reeves
> ECD
>
> |-----Original Message-----
> |From: John Perry [mailto:[log in to unmask]]
> |Sent: Tuesday, January 23, 2001 1:16 PM
> |To: [log in to unmask]
> |Subject: [IPC-600-6012] Nonconforming Condition for Nonmetallic Burrs?
> |
> |
> |Hi All,
> |
> |
> |Got an issue here raised by one of our IPC-A-600F users.  The
> |attached .pdf contains a photograph that shows the board edge
> |of a sample which the user believes does not pass the criteria
> |established in section 2.1.1.1., Nonmetallic Burrs.  It would
> |appear as though the router had some problems on the edges and
> |fiberglass fibers are now falling off the edges.
> |
> |Does this provide sufficient information in order to obtain a
> |consensus from this group on the pass/fail issue?
> |
> |
> |Best Regards,
> |
> |
> |
> |
> |John Perry
> |Technical Project Manager
> |IPC
> |2215 Sanders Road
> |Northbrook, Il 60062
> |1-847-790-5318 (P)
> |1-847-509-9798 (F)
> [log in to unmask]
> |
> |