We design Class 2 boards and have been specifying on drawing finished thickness 0.031 in +/- 0.004 in or 0.062 in +/- 0.008 in. I'm looking for the finished thickness tolerance tables by class. I could not find these details of what I need in IPC-2221, 2222, 6011, or 6012, just vague general references. Are these in IPC-4101? If anyone can verify or correct what we have been specifying and reference whatever updated standard to use, I'd appreciate it. TIA and Best Regards, ====================== Gary M. Koven Engineering Services Manager Dynazign, Inc. 806 Tyvola Road, Suite 100 Charlotte, NC 28217 P: 704.405.1234 x210 F: 704.405.1402 http://www.dynazign.com/ --------------------------------------------------------------------------------- DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF DesignerCouncil. To temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL) Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ---------------------------------------------------------------------------------