Kelly, Send me your FAX number. I've got a file on porosity testing that should answer your questions. There is lots of info on this topic in the industry. Check with your companies library for starters and don't forget to check within the connector/contact industry (check the Holm conference). Paul Terranova Analytical and Environmental Test Services Lab Worldwide Module Components Group Digital Equipment Corp 200 Forest Street Mail Stop: MRO3-1/D2 Marlboro, MA 01752-3085 ' Phone: (508)467-3109 * Fax: (508)467-6796 * Email: [log in to unmask] -----Original Message----- From: Kelly Kovalovsky [SMTP:[log in to unmask]] Sent: Monday, March 23, 1998 4:22 PM To: [log in to unmask] Subject: [TN] Gold Porosity I am looking for some information on gold porosity as it applies to common PCB edge tab connector contacts. More to the point, I would like to know: What is a good working definition of porosity? What is the common test(s) for porosity and the theory behind the test? What are the common causes for test failure? Kelly Kovalovsky ################################################################ 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 the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################ ################################################################ 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 the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################