topic Re: Overlap/Outline Clearance Errors in Fusion Electronics Forum

Overlap/Outline Clearance Errors

al971144 — Mon, 25 Aug 2025 14:26:38 GMT

Hello, I'm designing a PCB board and I'm continuously getting similar errors for specific components. As shown in the document below, I get an overlap error for a IC chip (DRV8825 driver) in its base, even when there's isn't anything connected. I get the same plus additional "Board Outline Clearance errors" for a USB shield that am using for a USB-UART converter. Is this an issue with the model itself, or an actual error that I will have to resolve. Let me know if you need more information and thank you for the help.

Re: Overlap/Outline Clearance Errors

paullevene — Mon, 25 Aug 2025 14:49:44 GMT

It looks like the component has two overlapping pads. Replace those pads in the component with a single elongated pad.

Re: Overlap/Outline Clearance Errors

paullevene — Mon, 25 Aug 2025 14:58:49 GMT

With the SMD pad component, there are two options:

1) Use a polygon on the PCB layer and give it a signal name = GND to match the component PAD signal GND
2) Use a rectangle in the component not polygon which will not need a signal name. You might need to add a another rectangle on top for TStop layer if you want to remove solder mask and TCream if you want to place solder paste. (TStop should be slightly larger).