Patent ID: 11895771
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A printed circuit board comprising:
a first insulating layer;
a second insulating layer disposed on the first insulating layer;
a via pad and a fine circuit unit at least partially embedded in the first insulating layer;
a first via layer penetrating through at least a portion of the first insulating layer and disposed on one side of the via pad in a stacking direction; and
a second via layer penetrating through at least a portion of the second insulating layer and disposed on an opposing side of the via pad in a stacking direction,
wherein the via pad has a step portion,
the via pad includes a first layer and a second layer, the second layer being disposed on and directly contacting a first surface of the first layer,
each of the first and second layers of the via pad includes a metal material, the first and second layers of the via pad are distinct layers having a physical interface therebetween, and
each of the first and second insulating layers is a single layer.