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

Claim 10:
11. The printed circuit board of claim 9, 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 second build-up layer, wherein the plurality of overlapping vias are in the second build-up layer, and wherein the first build-up layer includes:
a first via through the first build-up layer at the first horizontal position on the printed circuit board;
the third conductive material filling the first via in addition to the buried via and the plurality of overlapping vias in the second build-up layer; and
wherein the third conductive material filling the plurality of overlapping vias connects to the third build-up layer at the second horizontal position.