Hi Alejandro is there any trace of adhesive (epoxy) left on the board? What kind of epoxy you have in your process? Is there one specific part number? I had experience with specific parts having some type of film, and cause adhesion problems. Luis A Gallegos Automation Senior Technician SANMINA-SCI Pleasant Prairie WI 262 947-7700 e-mail: [log in to unmask] > -----Original Message----- > From: Becerra Alejandro [SMTP:[log in to unmask]] > Sent: Wednesday, March 13, 2002 7:02 PM > To: [log in to unmask] > Subject: Re: [TN] Glue Dot Size (missing parts) > > > We are having issues with 0603 components attached with glue (Glue printed > with Pump printing) > that are being fallen in the wave soldering equipment. > The average dot size that we are having in these components is 0.025" and > the average torque value is 1 N-cm. > What could be possible causes for this issue? > > Regards, > > Alejandro Becerra > Thomson multimedia Inc > > > > > -----Original Message----- > From: Krug, Dick [ <mailto:[log in to unmask]>] > Sent: Wednesday, March 13, 2002 9:54 AM > To: [log in to unmask] > Subject: Re: [TN] Glue Dot Size > > > We dispense glue using a positive displacement pump. > Dot diameter for 0603's is nominally 20 mils. > Dot diameter for 0805's is nominally 28 mils. > Dick Krug > Sypris Electronics > > -----Original Message----- > From: Vinit Verma [ <mailto:[log in to unmask]>] > Sent: Wednesday, March 13, 2002 7:19 AM > To: [log in to unmask] > Subject: [TN] Glue Dot Size > > > Hi All, > > Has anyone ever worked with the Pump Printing Stencil for printing glue on > > pre-inserted PCBs?? This stencil is developed by DEK but I'm not too sure > of > how it works? Any experiences? > > Also would be too kind if somebody could tell me the glue size requirement > > for 0603 and 0805 components? > > Thanks in advance > > Regards > Vinit Verma > > -------------------------------------------------------------------------- > -- > ----- > Technet Mail List provided as a free service by IPC using LISTSERV 1.8d > 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 delivery of Technet send e-mail to [log in to unmask]: > SET > Technet NOMAIL > To receive ONE mailing per day of all the posts: send e-mail to > [log in to unmask]: SET Technet Digest > Search previous postings at: www.ipc.org > On-Line Resources & Databases > > > E-mail 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 > -------------------------------------------------------------------------- > -- > ----- > > -------------------------------------------------------------------------- > ------- > Technet Mail List provided as a free service by IPC using LISTSERV 1.8d > 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 delivery of Technet send e-mail to [log in to unmask]: > SET Technet NOMAIL > To receive ONE mailing per day of all the posts: send e-mail to > [log in to unmask]: SET Technet Digest > Search previous postings at: www.ipc.org > On-Line Resources & Databases > > E-mail 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 > -------------------------------------------------------------------------- > ------- > --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 ---------------------------------------------------------------------------------