We are having problems with the interface between SIMM boards and sockets (72 Pin). The boards are supposed to be .050" +.004" to -.003". I think that is an industry standard. Where do you measure the thickness from. The board surface or the conductor surface. We have some that measure .045 at the glass and .047 on the edge connectors. They don't work very well, intermittent. Anyone else have trouble like this? ############################################################## TechNet Mail List 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://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################