Fellow TechNetters:

   I did not receive a reply so I posted my inquiry again.   It's Monday so things might be slow!  I did review IPC-2221B Table 6-1   Electrical; Conductor Spacing.   I guess if I have drill misregistration, as long as it doesn't come closer than 2 mils, it's OK!   I needs comments and/or suggestions.   This inquiry is on a cross section method.  I will plan to do a flat section later.

Victor,

From: Hernandez, Victor G
Sent: Monday, September 22, 2014 9:11 AM
To: TechNet E-Mail Forum ([log in to unmask])
Cc: Hernandez, Victor G
Subject: Electrical Spacing, Clearance to PTH copper barrel, IPC-6012C

Fellow TechNetters;

   I am searching for info on electrical spacing requirements between an internal conductor/Land to PTH copper barrel distance.   In my case it can be either drill process misregistration and/or internal core misregistration.  In either case what is the closest distance that a conductor/land can be to the PTH copper barrel.

Victor,


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