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September 1998

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Subject:
HASL thickness readings
From:
PELCHAT_JM <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 22 Sep 1998 07:17:13 -0400
Content-Type:
text/plain
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text/plain (27 lines) 
        What are the recommendations for taking HASL readings on a bare
        board, allowing for the variations in the HASL process to ensure
        the HASL thickness is consistent throughout the whole board?

        I there some definition of locations on the board, quantity of
        readings, readings taken at different part technologies?

        Is there a guideline in IPC-A-600 somewhere?  Have TechNetters
        used that as a tried and true guideline or made enhancements to
        guarantee consistency?

        Thanking TechNet in advance!

        Jan Pelchat

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