The portion of PWB conductor material (with through-hole designs, usually a pad) that completely surrounds a hole.
Found on
http://www.encyclo.co.uk/local/20870
A Pad Shape consisting of a doughnut shape. Uses include A drill centre mark. On a Powerplane, to provide isolation for a drilled hole through it's centre. Plotting for powerplanes is performed as a NEGATIVE - draw where you do NOT want copper. Thus the ring generates an isolated island. The inner section must provide normal electrical clearance pl...
Found on
http://www.vutrax.co.uk/glossary.htm
[Electronics Production] The circumferential copper ring completely surrounding a hole
Found on
https://piek.international/terminology/
No exact match found.
