Mitchell, James wrote: > > Hello! > > I am looking for guidance on choosing gold plating thicknesses and > plating processes for circuit board edge fingers. For example: What are > the recommendations for circuit board edge fingers that will be inserted > into a connector and removed 10 times verses a installation/removal > cycle of 50 times? > > Are there any references on the subject? Any help will be greatly > appreciated! > No help from me, just more questions! I recall from the 70's that there was once an alternate underplate for longer life in the like of extender boards or diagnostic plug-ins. I seem to recall specifying gold over rhodium for lives of 100s of insertions. Is this still done? -- Jeff Seeger Applied CAD Knowledge Inc Chief Technical Officer Tyngsboro, MA 01879 jseeger "at" appliedcad "dot" com 978 649 9800 ############################################################## 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. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ##############################################################