Azman, How is fine pitch ? How about your stencil design ? Notrogen setting at your comp. ? What is your printer ? Solder paste maker ? Viscosity in present ?.... I maybe help you if you provide us items mentioned above in detail. Best regards. ----- Original Message ----- From: "azman" <[log in to unmask]> To: <[log in to unmask]> Sent: Saturday, June 25, 2005 12:25 PM Subject: [TN] Lead free solder paste > Hi all, > > Recently I had a problem with printing the lead free solder paste, almost > every board has bridging especially on the fine pitch locations. Anyway > this problem never happens when we use leaded solder paste. So I would like > to ask if there are any special controls such as environment, viscosity, > stencil design and printer parameters in order to achieve good printing for > lead free solder paste. > > > Best regards > Azman > Process Eng. > > --------------------------------------------------- > 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 -----------------------------------------------------