I'm looking for, and not finding, several features requirements/tables (by
Class 1,2,3) within IPC-6012A:

1.  Layer to layer registration
2.  Hole size tolerance
3.  Hole location tolerance
4.  Pattern feature accuracy

The IPC webpage advertising for IPC-6012B purports to have incorporated many
new requirements therein, including some of the above.  That's fine, but I
would like to know if I will find the above tables within IPC-6012B.  I
would like to know this before I go buy 6012B, not after.

If these requirements/tables are listed in another IPC standard, please
direct me there.

Our boards are Class 2.  One of our clients' assembly houses wishes to
tighten the "Tooling Hole to artwork tolerance" to +/- 0.002 inch which, if
memory serves, seems to be a Class 3 requirement.  I need the tables I
listed above in order to address this issue.

TIA and Best Regards,

======================
Gary M. Koven, C.I.D.
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/

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