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Topic: Curious about marking on board (Read 308 times) previous topic - next topic


I noticed an interesting marking on the bottom of the board, just above the "Assembled in Italy" silkscreen and the UL 94V-O flammability component mark:

The actual image appears brown on the blue background... no copper, no resist, no plating. Anyone know if this is a test pattern to check on the board manufacturing process, another regulatory mark I hadn't seen before, or...?


The first symbol is the Logo of the ALBA PCB Group.


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