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February 2016

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Subject:
From:
Guy Ramsey <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Guy Ramsey <[log in to unmask]>
Date:
Thu, 11 Feb 2016 15:53:10 -0500
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text/plain
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If it is a defect it would be in the IPC-A-600. I think they are at rev H

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
Sent: Thursday, February 11, 2016 3:06 PM
To: [log in to unmask]
Subject: [TN] IPC-A-610-F

Fellow TechNetters:

   In the above stated standard DON"T see anything that refer to a defect
from the desmear process which created a bow/flex, hour glass shape, on the
copper hole wall from uncleansed debris.   No lead will be inserted in this
PTH.   Is this type of anomaly acceptable.   I don't suspect that the
laminate is FR4 at this time.   Perhaps later will identify.

Victor,


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