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Top layer pad with hole

ffb.boy.30

Hi,

I've an old Altium (2016) and I would like to create a top layer pad with a hole.

Actually, when I create a top layer pad the hole disappear.

My goal is to create a 0.8mm pad with a hole of 0.4mm.

The bottom of my pcb will be in contact with metal that why I don't want to use multilayer pad

Thanks for your help

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  • I don't use Altium (and don't wish to!) but nevertheless, what you're requesting is unusual, and nearly all PCB manufacturers will automatically not give you what you want, even if Altium 2016 can do it.

    If your top copper touches the hole, then PCB manufacturers (unless you confirm with them otherwise!) will automatically fill the hole with copper, meaning that the bottom of the PCB will definitely be in contact with metal.

    Two ways around this are (1) discuss with the PCB manufacturer (and likely pay more, because it will be bespoke) or (2) simply don't have copper touching the edge. How you do that is really down to whether your software can do it or not.  KiCAD manages it fine, it's free, and up-to-date.

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  • I don't use Altium (and don't wish to!) but nevertheless, what you're requesting is unusual, and nearly all PCB manufacturers will automatically not give you what you want, even if Altium 2016 can do it.

    If your top copper touches the hole, then PCB manufacturers (unless you confirm with them otherwise!) will automatically fill the hole with copper, meaning that the bottom of the PCB will definitely be in contact with metal.

    Two ways around this are (1) discuss with the PCB manufacturer (and likely pay more, because it will be bespoke) or (2) simply don't have copper touching the edge. How you do that is really down to whether your software can do it or not.  KiCAD manages it fine, it's free, and up-to-date.

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