Tin Whiskers

A client provided a flex cable sample to SEM Lab, Inc. for SEM/EDS analysis of the crimp contact plating.

tin whiskers 1

EDS of the contact plating revealed that the plating was pure tin, which explains in part the many tin whiskers associated with the crimped region of the flex cable.

tin whiskers 2

The longest whisker in this image is very close to shorting two adjacent signals.

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