Author Topic: Is this normal for new PCB?  (Read 3135 times)

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Offline orbiterTopic starter

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Is this normal for new PCB?
« on: April 08, 2016, 03:58:48 pm »
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.



« Last Edit: April 09, 2016, 04:59:24 am by orbiter »
 

Offline Falcon69

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Re: Is this normal for new PCB?
« Reply #1 on: April 09, 2016, 06:16:22 am »
Are you sure that is exposed edge? Or perhaps it is thicker copper for maybe a card edge fingers?
 

Offline orbiterTopic starter

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Re: Is this normal for new PCB?
« Reply #2 on: April 09, 2016, 09:04:00 am »
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.
 

Online PA0PBZ

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Re: Is this normal for new PCB?
« Reply #3 on: April 09, 2016, 10:28:12 am »
These are from the edges of a bigger plate, there is less photoresist on the edges
Keyboard error: Press F1 to continue.
 
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Offline orbiterTopic starter

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Re: Is this normal for new PCB?
« Reply #4 on: April 09, 2016, 10:32:42 am »
These are from the edges of a bigger plate, there is less photoresist on the edges

Are they acceptable for new boards would you say?
 

Offline orbiterTopic starter

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Re: Is this normal for new PCB?
« Reply #5 on: April 14, 2016, 09:30:11 am »
All sorted.. The company was awesome,  they just apologised and are sending replacement boards out for me.
 
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Offline aries1470

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Re: Is this normal for new PCB?
« Reply #6 on: April 15, 2016, 12:26:59 pm »
That is great to know. Suppose QA didn't do a final check? Good outcome.  :)
 


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