Fulton Feng, I also would like to get information regarding this issue. In my case I would like to know if there is a test procedure for Accelerated Reliability of Immersion Gold finish (PCB): Test Requirements Test Method Evaluation Criteria (pass/ fail) We have our own coupon design for doing accelerated reliability test using Bellcore and we are planning to include gold finish PCB but I'm not sure if I can use the same procedure and criteria for Gold finish. Thanks Arlene ################################################################ 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 ################################################################