It really should not be any different than Sn63. I suspect your difficulties are related to the board, not the solder alloy . . . Unless it is actually Pb-Free solder like SAC 305 or Sn100. Difficulties in either case are usually related the thermal transfer, thermal mass of the tip and work piece must be considered. It may be necessary to preheat the board and components. If you can, use flux as a transfer medium. It will improve the rate of transfer and minimize hot spots at the rework site. Resist the temptation to crank the temperature up on the iron, unless the methods above are inadequate. Guy -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Pasquito, Helena Sent: Thursday, August 07, 2008 10:21 AM To: [log in to unmask] Subject: Re: [TN] SOLDER FOR PCB REFLOW PROCESS Having some difficulty reworking (hand soldering process)Sn62. Any pointers on iron temps and process? -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Joe Macko Sent: Thursday, August 07, 2008 10:03 AM To: [log in to unmask] Subject: Re: [TN] SOLDER FOR PCB REFLOW PROCESS Many of our CMs like to use Sn62 on ENIG finished PCBs. They report better wetting and better looking solder joints. The Ag in the alloy also helps minimize any silver leaching out of certain components. Lately however, they are reporting that this alloy is more costly to obtain with larger minimum buys. Best Regards, -joe "This e-mail and any attachments are solely for the use of the addressee and may contain L-3 proprietary information that may also be defined as U.S. Government export controlled technical data. If you are an unintended recipient of this e-mail, use, disclosure or distribution of its content is prohibited. Please notify the sender by return e-mail and immediately delete this message." From: TechNet [mailto:[log in to unmask]] On Behalf Of Anat Douek Sent: Wednesday, August 06, 2008 1:50 AM To: [log in to unmask] Subject: [TN] SOLDER FOR PCB REFLOW PROCESS What is the preferred solder for reflow process of military application. SN62 or Sn63 ? Anat Douek Process Engineer Herley General Microwave Israel tel. 972-25689455 --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 -----------------------------------------------------