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September 2015

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Subject:
From:
"McGlaughlin, Jeffrey A" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, McGlaughlin, Jeffrey A
Date:
Mon, 21 Sep 2015 19:45:38 +0000
Content-Type:
text/plain
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text/plain (52 lines)
Supported Hole = land and barrel plating 
Unsupported Hole = land only
Un-plated hole = no land or barrel plating (usually secondary drilling process)


Jeffrey McGlaughlin, C.I.D.
Engineering Designer

Battelle
505 King Avenue
Columbus Ohio 43201-2693
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
Sent: Monday, September 21, 2015 3:30 PM
To: [log in to unmask]
Subject: [TN] FW: Supported & Unsupported holes

I did not received any responses, so decide to re-submit.

Victor,

From: Hernandez, Victor G
Sent: Friday, September 18, 2015 9:14 AM
To: TechNet E-Mail Forum
Cc: Hernandez, Victor G
Subject: Supported & Unsupported holes

Fellow TechNetters:

   Is it safe to stated that a SUPPORTED hole contains a plated through BARREL and an UNSUPPORTED holes does not contain a plated through BARREL...   I am measuring the hole break out on an external PTH annular ring.   IPC-2221  Figure 9-2 & Table 9-2.

Victor,


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