|
Posted by rmann on 08-11-2005 11:41 AM
|
In ancient times the medieval castle had a big ditch, called a "moat" completely surrounding it for defense. By analogy, a "moat" on a PCB occurs on a plane layer - a layer that is mostly all-copper, like a ground or power plane. The moat is any continuous line of no-copper that serves to isolate one copper area from another. For example, a plane layer might be split into two different voltages, perhaps +5 volts and +3.3 volts. The line of no-copper that separates the two areas would be called a moat. Another example: the annular ring that isolates a thru-hole pad on a plane layer might be sometimes called a moat.
-Richard Mann
|
|