Electronics > Manufacturing & Assembly

Is this normal for new PCB?

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orbiter:
I just had these FR4 boards delivered a few days ago guys and to be honenst they look like old stock perhaps to me. They have what looks like an exposed edge down one side which IMO doesn't seem correct?  Its as if the photoresist has either not been applied evenly or perhaps the pcbs have been poorly stored or something.

As you can see the surfaces are different colours down one edge. The pics were taken as soon as the black protective film was removed in a dark'ish room. Surely this is not correct for new PCBs?

Many thanks for any advice.

Falcon69:
Are you sure that is exposed edge? Or perhaps it is thicker copper for maybe a card edge fingers?

orbiter:
The areas I'm concerned about are the lower edges in each picture where the colour goes from dark to light. I have not cut anything there.

PA0PBZ:
These are from the edges of a bigger plate, there is less photoresist on the edges

orbiter:

--- Quote from: PA0PBZ on April 09, 2016, 10:28:12 am ---These are from the edges of a bigger plate, there is less photoresist on the edges

--- End quote ---

Are they acceptable for new boards would you say?

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