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February 1998

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Subject:
From:
Lisa Williams <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 4 Feb 1998 11:07:01 -0600
Content-Type:
text/plain
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text/plain (25 lines)
We received this inquiry:

"I have a question I hope you will be able to help me with, that is, for
common board materials such as FR-4, is there a known temperature
(besides its glass transition temperature) that represents a critical
value above which drillling will cause unacceptable hole wall quality."

If you have any answers, please let me know.

Lisa Williams
IPC
[log in to unmask]

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