Hi Steve: Send me your fax number and I will fax "Nitrogen for Flow and Reflow Soldering?" by Armin Rahn, Rahn-Tec Consultants. He wrote this last year for the SMTA newsletter. Regards, -David At 12:37 PM 5/26/98 -0600, you wrote: >All, > >We are just getting into volume SMT production and I have a >couple of questions about the benefits of a nitrogen reflow. > >1) Is there a suggested SMT pitch that almost necessitates >the use of nitrogen (i.e. 20 mil does fine without but 16 >mil needs it...)? > >2) If we are using 100% mil-std finish parts, boards, and >RMA flux solder paste, are the benefits as great as if we >were using commercial parts, boards, and a no-clean flux >solder paste? > >3) One of our customers claims that it increases the life >of the assembly by eliminating/reducing void formation >within the solder connection. Any insight into this? > > >We are in process of qualifying our SMT equipment, materials >and processes. Any suggestions, insight, or lessons learned >would be greatly appreciated. > >Thank you all in advance of your help!! > >Steve McBride >[log in to unmask] >(405) 624-5281 > >################################################################ >TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c >################################################################ >To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: >To subscribe: SUBSCRIBE TechNet <your full name> >To unsubscribe: SIGNOFF TechNet >################################################################ >Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. >For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 >################################################################ > > David Gonnerman Director of Publications Plan now to attend: Surface Mount International (San Jose, CA; 8/23-8/27) Electronics Assembly Expo (Providence, RI; 10/24-10/29) SURFACE MOUNT TECHNOLOGY ASSOCIATION Enabling members to achieve success in surface mount and companion technologies through education, training and access to knowledge. 5200 Willson Road, Suite 215, Edina, MN 55424-1343 612-920-7682 F 612-926-1819 [log in to unmask] www.smta.org ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################