Howard: Ask them to first put them in a plastic bag to isolate them from the beads, another few extra cents. Or, you can wash them prior to being baked for assembly. Regards, Ramon > -----Original Message----- > From: Howard Watson [SMTP:[log in to unmask]] > Sent: Friday, February 21, 2003 9:48 AM > To: [log in to unmask] > Subject: [TN] Styrofoam beads on PCB's > > > Dear Technetters, > > I don't know if this is a problem that only we have, but it involves > Styrofoam packing beads that show up on the PCB's that are delivered to > our lines. The little beads are all over the plastic packaging of the > individual PCB bundles, and these can eventually hitchhike onto a PCB that > goes into the printer. You can guess what happens - a bead ends up on a > pad or in an aperture and the result is insufficient or missing solder on > one or many boards. Our supplier is in China or India, and they claim > that they must use Styrofoam for packaging. In my opinion, this is the > wrong type of packaging to use, but because of the low "initial" cost, I > don't have too much clout on this issue. Is anyone else familiar with > this problem? > > Thanks in advance for all of your opinions - they are helpful and very > valuable to my job! > > Howard Watson > SMT Manufacturing Engineer > --------------------------------------------------- > Technet Mail List provided as a free 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/html/forum.htm for additional > information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 > ext.5315 > ----------------------------------------------------- > AMETEK/Dixson --------------------------------------------------- Technet Mail List provided as a free 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------