Typically the Sn phase wets out farther than the Pb phase. On a good clean Au surface, the contact angle approaches zero. Regards, Andy Andrew C. Giamis Andrew Solutions FMA / Reliability Engineer 40 Technology Drive, Warren, NJ 07059 (908) 546-4686 [Office] (908) 938-7945 [Cell] [log in to unmask] -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of vladimir Igoshev Sent: Friday, April 13, 2012 12:43 PM To: [log in to unmask] Subject: [TN] Wetting angles Technetters, I have a simple question. Does anyone know what the wetting angles of the two phases of the Pb-Sn eutectic on a Au surface are. Or at least which one is lower? Any direct answer (number/reference) will be greatly appreciated. Regards, Vladimir SENTEC Testing Laboratory Inc. 11 Canadian Road, Unit 7. Scarborough, ON M1R 5G1 Tel: (416) 899-1882 Fax: (905) 882-8812 www.sentec.ca ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________