Arista Networks, Inc.
IMPEDANCE CONTROL USING ANTI-PAD GEOMETRIES

Abstract:

Embodiments of the invention may relate to a circuit board (CB). The circuit board may include a first CB layer that includes a first anti-pad having a first area, a second CB layer that includes a second anti-pad having the first area and being located substantially beneath the first anti-pad, a first via within the first anti-pad and the second anti-pad, and a first CB trace in the second CB layer. The first CB trace may be coupled to the first via to form a first transition point within a first signal propagation path. The first area may be determined, at least in part, by a depth within the CB of the second CB layer.