Hi Kirk - Take a look at the following reference: "Parametric Study on the Solderability of Etched PWB Copper", F. Hosking, SMI Proceedings 1996, page 671. The paper (and its references) contains quite a bit of info on surface tension and wetting of thin lines that may be of use to you. Good Luck. Dave Hillman Rockwell Collins [log in to unmask] ______________________________ Reply Separator _________________________________ Subject: 90/10 to 63/37 SnPb Comparison Author: [log in to unmask] at ccmgw1 Date: 5/21/97 12:08 PM Kirk VanDreel 05/21/97 12:02 PM Does anyone know of papers, books or proceedings which compare the surface energy and flow characteristics between 90/10, 85/15, and 63/37 plated SnPb? Thanks, Kirk Van Dreel Hutchinson Technology [log in to unmask] *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * *************************************************************************** *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To subscribe/unsubscribe send a message <to: [log in to unmask]> * * with <subject: subscribe/unsubscribe> and no text in the body. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************