Edge fingers for PC peripherials should be 15-30 microinches of gold plating with 100 microinches of nickel underplating. This standard is reference IPC-D-275. Probimer 52 is a Liquid Imageable Photomask (LPI). Tim Easterling SCI (205) 882 4426 ################################################################ DesignerCouncil 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 DesignerCouncil <your full name> To unsubscribe: SIGNOFF DesignerCouncil ################################################################ 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 ################################################################