Hi team,
1. What does this mark mean? My customer doesn't know what this mark mean. In my understanding, the electrodes on TPSM83100 are recessed 0.08mm.

2. Is the solder resist on the bottom of the IC completely isolated? If yes, could you please tell me the reason? We assume the dark green part in the figure below is solder resist.

Best regards,
Shunsuke Yamamoto