Hi Kevin, You do not tell us anything about the component—dimensions, thermal mass, CTE, on FR-4, power dissipation, operating environment, etc. All of these have an impact on the manufacturability, the resulting quality, as well as long-term reliability. So, you get the 'infamous' consukltants' "IT DEPENDS." Werner Engelmaier Future workshops: Solder Joint Reliability: Parts 1 through 4, July 17/18, Thal, Switzerland Pb-Free Soldering Processes—Survival, Quality, Reliability, August 18, Orlando Reliability Issues with Lead-Free Soldering Processes, September 22, Schaumburg Failure Mode and Root Cause Analyses Reliability (Fatigue, Brittle Fracture, ENIG), September 22, Schaumburg Solder Joint Reliability: Parts 1 & 4, Oct. 9, Moscow, Russia Solder Joint Reliability: Parts 1 & 4, Oct. 22, Tallinn, Estonia ************** Get the scoop on last night's hottest shows and the live music scene in your area - Check out TourTracker.com! (http://www.tourtracker.com?NCID=aolmus00050000000112) --------------------------------------------------- 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 -----------------------------------------------------