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TPA3255-Q1: scratches on the thermal pads

Genius 4165 points
Part Number: TPA3255-Q1

Our customer found scratches on the thermal pads of three TI "TPA3255TDDVRQ1".
It is unknown in which process the scratch was made.

I would like to send you photo of scratches.so I wonder if it is a scratch that does not cause any problem in performance.
Also, if there is a problem with performance, please give us your answer how much it will affect heat dissipation.

Could you please let us know your email address ?