Eric, My guess is that this is a board that your company orders over and over again from the same supplier; that the supplier had excess boards on their last run and they put the excess in inventory in a stockroom. When the next order came in, they filled it with the excess that they pulled from the stockroom. And those board were now dusty (although it is hard to imagine them all dusty - it should only be a few...). Anyway, if they get a rejection they should learn that when they pull boards from a stockroom, they should cycle them back through the shop's last cleaning process. The other scenario is that they aren't stock boards, but they are production boards which "missed" the cleaning step after routing. Is the dust a white powder? Anyway, bottom line, you should get clean dust free boards. No one should have to deal with the dust which could muck up the screen printing ... Valerie ekalgren <[log in to unmask]> Sent by: TechNet <[log in to unmask]> 06/14/2005 11:54 AM Please respond to TechNet E-Mail Forum; Please respond to ekalgren To: [log in to unmask] cc: Subject: [TN] PCB rejection criteria Good morning everyone, I've got a question on bare PCB's. These are relatively simple boards that have been red flagged in incoming inspection for having scratches in the soldermask that expose the underlying copper. Now, even I know that this is truly a defect. QA has also written up the entire lot of boards for being dusty and a couple of the lot for having "excess solder." The excess solder is just a couple of PTH's that are partially filled by the HASL. I'm not sure what the dust is but it blows off easily and doesn't seem to be affecting anything other than the inspector's sense of cleanliness. My question to all of you out there is: how should I handle the dust issue? Is this typical of boards coming in from the shop and should I tell the inspectors to go easier in the future or do I demand spotless, dust free boards from our supplier? I don't want to accept junk but at the same time I don't want to drive costs up by over inspecting. Where does one draw the line? Thanks in advance, Eric Kalgren Manufacturing Engineer Continental Tool and Microwave Company [log in to unmask] --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------