Don, IPC-2221A states on pg 21, Table 4-3 Final Finish, Surface Plating Coating Thickness Requirements, the following; Code Finish Class 1 thru 3 ENIG Electroless Nickel 3 um [118uin] (min) Immersion Gold 0.05 um [1.97 uin] (min) Regards, Greg. Gregory E. Bordash Advanced Bord Designs Senior PCB Design Consultant C.I.D.+ phone: (905) 420-4195 cell: (416) 723-4195 fax: (905) 420-4195 email: [log in to unmask] -----Original Message----- From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of Smith, Donn Sent: July 13, 2005 9:35 AM To: [log in to unmask] Subject: [DC] Plating thickness I find that my set of IPC-2220 has become outdated (specifically 2221). So that I don't have to wait until I can requisition and receive my new set, may I impose on someone who already has the new version? Referencing the Feb 1998 version of that document, Table 4-3 Final Finish, Surface Plating Requirements (page 20): Electroless Nickel 2.5 - 5.0 micrometers (across all three classes) Immersion Gold 0.08 - 0.23 micrometers (across all three classes) Here's the question(s): Have either or both of those thicknesses changed in the newer version (IPC-2221A)? If so, what are the new values? Thanks very much (in advance)! Donn Donn Smith, CID Senior PCB Designer GARMIN International 1200 E. 151st Street Olathe, KS 66062 (913)397-8200 (913)397-8282 Fax [log in to unmask] www.garmin.com ------------------------- This e-mail and any attachments may contain confidential material for the sole use of the intended recipient. If you are not the intended recipient, please be aware that any disclosure, copying, distribution or use of this e-mail or any attachment is prohibited. If you have received this e-mail in error, please contact the sender and delete all copies. Thank you for your cooperation ---------------------------------------------------------------------------- ----- 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 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------------