Patent ID: 11963301
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A printed circuit board comprising:
an insulating layer;
a first circuit layer disposed on one surface of the insulating layer, and including a first circuit pattern and a first connection pad; and
a surface treatment layer disposed on one surface of the first connection pad,
wherein the other surface of the first connection pad is covered by the insulating layer, and at least a portion of a side surface of the first connection pad is spaced apart from the insulating layer,
wherein a width of an exposed portion of the first connection pad is substantially the same as a width of portions of the first connection pad covered by the insulating layer, and
wherein a roughness of an upper surface of the surface treatment layer is greater than a roughness of a side surface of the surface treatment layer.