Look again at Table 3.2, under code C. Under section C where it says Minimum Wrap (right below Copper - minimum average, and Minimum thinc areas). For class 3 the minimum wrap would be .472 mils thickness extending from the hole edge outward .984 mils. Not sure where you are getting overhang from? Franklin -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Dave Seymour Sent: Thursday, January 24, 2008 3:28 PM To: [log in to unmask] Subject: [TN] ipc-6012B amendement Howdy, Section 3.6.2.11.1 of the 6012 amendment Dec 2006 talks about the Minimum Wrap on a via filled hole. In Diagram 3-13 there is a measurement labeled "Minimum Copper Thickness", which is shown as the thickness of the Wrap. Where is the table that shows the "Minimum Copper Thickness" by Class? Table 3-2 only talks about the amount of the overhang of the wrap, not the thickness as such. Table 3-2 has something called Min Thin areas, but this is not labeled in the diagram 3-13. Am I missing something? Thanks Dave -- Dave Seymour, CID+ Catapult Communications Inc. 800 Perimeter Park Dr, Suite A Morrisville, NC 27560 Direct: (919)653-4249 Main: (919)653-4180 Fax: (919)653-4297 [log in to unmask] **************************************************************************** ***************************** "This e-mail (and any attachments) is confidential and privileged information of Catapult Communications" **************************************************************************** ***************************** --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/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 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/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 -----------------------------------------------------