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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