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Is there such a PCB construction technique?

colporteur

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Is there a PCB construction that creates an area of the board that can easily be broken?

In the sketch the dotted section could be easily broken to reduce the size PCB. My design would have each breakout section containing a button(s) that wire back to a single edge connector. Breaking off pieces of the PCB reduces the number of buttons. 

I was wonder if such a technique is used and what it might be called when constructing a PCB?

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  • 0

    Yes, there is several techniques that can be used to make divisible PCBs.

    One is to use V-scoring to cut a channel - this results in a cut line which can be snapped to divide the PCB but nothing can be routed through the cut. Many manufacturers charge extra for V-scoring.

    Another is to use routed slots to create large rounded-rectangular slots in the board. Some manufacturers won't do this at all because of the amount of drill wear it causes, and/or they may not be able to process such boards.

    Finally, what you have illustrated is more like "stamp holes" or "mousebites" where you can divide the PCB with many small hole drills. This is sometimes combined with slots as above to create divisble PCBs, sometimes with wiring between sections that can be broken-off. Some PCB manufacturers charge extra for this service as it can create multiple PCB designs, others due to excessive number of holes.

    - Gough

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  • 0

    Yes, there is several techniques that can be used to make divisible PCBs.

    One is to use V-scoring to cut a channel - this results in a cut line which can be snapped to divide the PCB but nothing can be routed through the cut. Many manufacturers charge extra for V-scoring.

    Another is to use routed slots to create large rounded-rectangular slots in the board. Some manufacturers won't do this at all because of the amount of drill wear it causes, and/or they may not be able to process such boards.

    Finally, what you have illustrated is more like "stamp holes" or "mousebites" where you can divide the PCB with many small hole drills. This is sometimes combined with slots as above to create divisble PCBs, sometimes with wiring between sections that can be broken-off. Some PCB manufacturers charge extra for this service as it can create multiple PCB designs, others due to excessive number of holes.

    - Gough

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  • 0 in reply to Gough Lui

    "...One is to use V-scoring to cut a channel - this results in a cut line which can be snapped to divide the PCB but nothing can be routed through the cut..."

    Could perhaps leave pads either side of the V-score to allow wire links to jump the groove. Perhaps space it appropriately to accommodate a pair of right-angle connectors giving the option of easily re-joining snapped sections back together again.