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] > | > |