Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

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SMT electronics assembly manufacturing forum.


ATC Fail Criteria

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Amol Kane

#38171

ATC Fail Criteria | 1 December, 2005

Hi, I am testing some lead-free assemblies using ATC. it was suggested to me that if i do in-situ testing, then i should measure the starting resistance, and subsequent resistances values after n cycles, and when the resistance value increases by 1 ohm, that means the component (BGA) has failed. Can anyone help me with the validity of the statement? is this failure criteria correct?

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