AD

A record of fixing an Altium Designer Health Check issue

As shown in the screenshot, while learning PCB design in AD recently, I discovered that besides DRC checks, AD also has a Health Check feature (the version used when writing this was 25.8.1). Several warnings appeared: Self-Intersecting Regions、Micro-Segments (Board)、Micro-Segments (Copper). This record mainly focuses on a strange issue encountered while fixing the first and third problems.

First, by clicking the issues listed:

You can locate the PCB area where the problem was detected. In my board, it pointed to this location:

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Altium Designer 24 PCB DRC Solder Mask Sliver constraint floating point precision issue

While learning AD24 recently, I discovered an issue:

As shown in the screenshot, AD’s DRC check reported a violation:
“[Minimum Solder Mask Sliver Constraint Violation] IP2369_EVM.PcbDoc Advanced PCB Minimum Solder Mask Sliver Constraint: (0.0998mm (3.929mil) < 0.1mm (3.937mil)) Between Pad U1-21 (52.014mm, 25.561mm) on Top Layer And Pad U1-22 (52.014mm, 25.961mm) on Top Layer [Top Solder] Mask Sliver [0.1mm]”

After investigating and manually calculating pad size, solder mask expansion, and pad spacing:

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