Eagle PCB Tip - Enable tented via

This is a quick tip about how to enable tented via.

Version: EaglePCB 6.6.0

1. Check the size of the via.

In the pic below, the via size (0.014) is 14mil.

2. In DRC/Masks, set the "Limit" parameter to a large number. Vias only get solder mask if they are larger than the "limit" value.

Before

The limit was 0mil before the change.

After

Change the limit to 15mil.

All via with diameter smaller than 15mil will be covered.

Reference:

https://www.avrfreaks.net/forum/eagle-layout-solder-mask-over-setting

Tented Via's in Eagle

PCB Via Calculator
http://circuitcalculator.com/wordpress/2006/03/12/pcb-via-calculator/