![Solder Mask Expansion Enhancements (New Feature Summary) | Altium Designer 15.1 User Manual | Documentation Solder Mask Expansion Enhancements (New Feature Summary) | Altium Designer 15.1 User Manual | Documentation](https://www.altium.com/documentation/sites/default/files/wiki_attachments/263476/PCB-Pnl_Inspector-ViaExpansion.png)
Solder Mask Expansion Enhancements (New Feature Summary) | Altium Designer 15.1 User Manual | Documentation
![Solder Mask Expansion Enhancements (New Feature Summary) | Altium Designer 15.1 User Manual | Documentation Solder Mask Expansion Enhancements (New Feature Summary) | Altium Designer 15.1 User Manual | Documentation](https://www.altium.com/documentation/sites/default/files/wiki_attachments/263476/PCB-Dlg_ViaSolderExpansion.png)
Solder Mask Expansion Enhancements (New Feature Summary) | Altium Designer 15.1 User Manual | Documentation
![Solder Mask Expansion from Hole (New Feature Summary) | Altium Designer 15.1 User Manual | Documentation Solder Mask Expansion from Hole (New Feature Summary) | Altium Designer 15.1 User Manual | Documentation](https://www.altium.com/documentation/sites/default/files/wiki_attachments/263436/AD_MaskExpansion-Choices2.png)
Solder Mask Expansion from Hole (New Feature Summary) | Altium Designer 15.1 User Manual | Documentation
![Working with the Paste Mask Expansion Design Rule on a PCB in Altium Designer | Altium Designer 21 User Manual | Documentation Working with the Paste Mask Expansion Design Rule on a PCB in Altium Designer | Altium Designer 21 User Manual | Documentation](https://www.altium.com/documentation/sites/default/files/wiki_attachments/303295/Pecentage_Mask_21_8.png)
Working with the Paste Mask Expansion Design Rule on a PCB in Altium Designer | Altium Designer 21 User Manual | Documentation
![Solder Mask Expansion Enhancements (New Feature Summary) | Altium Designer 15.1 User Manual | Documentation Solder Mask Expansion Enhancements (New Feature Summary) | Altium Designer 15.1 User Manual | Documentation](https://www.altium.com/documentation/sites/default/files/wiki_attachments/263476/PCB-Dlg_Rules-SolderExpansion2.png)