Assertion: circuit board's layer | /r/HasProperty | dedicated as ground planes
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Often two layers are dedicated as power supply and ground planes, and the other two are used for signal wiring between components.
text: Any additional power or signal current returns that must be DC isolated from the ground plane should be routed on layers other than the layer devoted to the ground plane.