Hello Poh Kong, I don't know if U already solved Ur problem (I do hope so) but Im still going to share my excpirience regarding this issue... I don't know what Ur process parameters are, but using soldering paste that contains 2% silver , should solve Ur problem. Wetting preferences (ENIG) are not as good as when using HASL finish but are according IPC requirements... Good luck! Sasha ************************************************************************* Sasha Miladinovic - Production Engineering Amersham Biosciences, PCB Production, Umeå Tel: +46 (0) 90 150 232 Fax: +46 (0) 90 138 372 E-mail: [log in to unmask] ************************************************************************* Poh Kong Hui <[log in to unmask]> Sent by: TechNet <[log in to unmask]> 2003-02-27 13:18 Please respond to "TechNet E-Mail Forum."; Please respond to Poh Kong Hui To: [log in to unmask] cc: Subject: [TN] : Shining smooth solder joint on ENIG or Gold plating Board. Hi Technetters, Can someone advise me how to get a good smooth shining solder joint on the ENIG board or board with gold plate SMT pads. As I can understand that board subjected to reflow soldering, the solder joint tends to look dull and not so smooth joint. But, is there any way to get a good shining joint. Thanks. Poh --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------