Patent ID: 11956898
Assignee: APPLE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A circuit board, comprising:
a core layer, wherein the core layer include at least one first dielectric layer and at least one first conductive material layer;
a plurality of build-up layers coupled to the core layer, wherein the build-up layers include at least one second dielectric layer and at least one second conductive material layer, wherein the build-up layers include at least a first build-up layer, a second build-up layer vertically adjacent the first build-up layer, and a third build-up layer vertically adjacent the secohnd build-up layer;
a first via through the first build-up layer at a first horizontal position on the printed circuit board;
a first conductive material filling the first via and coupled to the at least one build-up conductive material layer of the first build-up layer;
a second via through the third build-up layer at a second horizontal position on the printed circuit board, the second horizontal position being horizontally displaced from the first horizontal position;
a second conductive material filling the second via and coupled between the at least one build-up conductive material layer of the second build-up layer and the at least one build-up conductive material layer of the third build-up layer;
a plurality of overlapping vias through the second build-up layer that extend from the first horizontal position of the first via to the second horizontal position of the second via, wherein the plurality of overlapping vias form a trench through the second build-up layer; and
a third conductive material filling the plurality of overlapping vias, wherein the third conductive material couples the at least one build-up conductive material layer of the first build-up layer to the at least one build-up conductive material layer of the second build-up layer.