Hello Victor,
I hope I'm understanding your question.
Try IPC-DR-572, 'Drilling Guidelines of Printed Boards',
    IPC-6012A with Amendment 1, 'Qualification and Performance
                                 Specification for Rigid
                                 Printed Boards', Page 5,Table 3-2,
                                  Final... Plating Coating Requirements.
I hope this helps.
Regards,
Paul Holloway; [log in to unmask]
847-352-5015

-----Original Message-----
From: Victor Hernandez [mailto:[log in to unmask]]
Sent: Friday, March 21, 2003 10:47 AM
To: [log in to unmask]
Subject: [TN] PCB thickness vs Hole side ( ASPECT Rratio )
Importance: High


Jack and Fellow TechNetters

  Where can I acquire a copy and/or documentation regarding the above stated
inquiry.
This deals with acceptable/allowable barrel plating thickness.


Victor,

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