Problem understanding PAD properties in ALtium menu

[yefj]

Hello , I see a PAD just like a VIA. A hole and ORING surrounding the hole.
Oring diameter =pad diameter-pad hole diamter
there are the purple gray and brown and green colors.
There is pad hole and paste one on the other?
what is the logic in foing that?
Thanks.
View attachment 191015

 

[barry]

First of all, it’s called an Annular Ring; an O-ring is a gasket in a circular shape.

Secondly, I couldn’t open your attachment.

Thirdly, I’m not sure what you’re trying to ask with “There is pad hole and paste one on the other?”

 

[aliarifat794]

The annular ring is the copper area surrounding the hole on the PCB pad. Its diameter is calculated by subtracting the hole diameter from the pad diameter. The O-ring, or solder mask, is a protective layer applied to the surface of the PCB to prevent solder from bridging between pads or components during the soldering process. Having pads with annular rings and solder mask helps ensure reliable soldering and prevents short circuits between adjacent pads or components.
For more info, please see the altium documentations.

Pad Properties

This page details all of the properties that can be defined for the PCB Pad object

www.altium.com

Working with Pads & Vias

Explore Altium Designer 24 technical documentation for Working with Pads & Vias and related features.

www.altium.com

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