Invention Grant
- Patent Title: Impedance control using anti-pad geometries
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Application No.: US16150576Application Date: 2018-10-03
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Publication No.: US10667385B2Publication Date: 2020-05-26
- Inventor: James A. Weaver
- Applicant: Arista Networks, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Arista Networks, Inc.
- Current Assignee: Arista Networks, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Chamberlain, Hrdlicka, White, Williams & Aughtry
- Main IPC: H05K1/11
- IPC: H05K1/11 ; H05K1/02

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.
Public/Granted literature
- US20200113041A1 IMPEDANCE CONTROL USING ANTI-PAD GEOMETRIES Public/Granted day:2020-04-09
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