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Annular RingAn annular ring is the ring of copper left as a pad between layers of circuitboard after a hole has been drilled through it. The annular ring will typically surround the via that connects two pads.
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Annular RingThe portion of a conductive material that completely surrounds a hole. See Minimum Annular Ring for more data and a graphic. Anode. A positive electrode of an electrochemical device (such as a primary [..]
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Annular RingThe width of the conductor pad surrounding a drilled hole.
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