Annular Rings

PCB Annular Rings

What is an Annular Ring?

A copper ring attached to the surface of a pad around a connecting hole wall.

Drill size (Aperture) is the the size of the hole diameter. An Annular Ring Width = (diameter of the pad - diameter of the hole) / 2

Normally Min width for Annular Ring is 0.15mm(6mil).

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Drills & Throughplating

Have Questions?

If you have any questions or need any further information, please feel free to contact your dedicated customer service.

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