Hi Pail, There is no 'IPC shear test'. Solder joint reliability can NOT be determined from 'pull and cross-section tests', they can however give an indication of poor quality, specifically poor wetting. This poor quality of course would lead to early failures, but indication of good quality is only a necessary, but not sufficient requirement for solder joint reliability. Given the large variability of lead and pad geometries, it is impossible to set meaningful standards. Werner Engelmaier Engelmaier Associates, L.C. Electronic Packaging, Interconnection and Reliability Consulting 7 Jasmine Run Ormond Beach, FL 32174 USA Phone: 904-437-8747, Fax: 904-437-8737 E-mail: [log in to unmask] ################################################################ 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 ################################################################