US 12,245,375 B2
Circuit board
Won Suk Jung, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/996,285
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Apr. 16, 2021, PCT No. PCT/KR2021/004795
§ 371(c)(1), (2) Date Oct. 14, 2022,
PCT Pub. No. WO2021/210941, PCT Pub. Date Oct. 21, 2021.
Claims priority of application No. 10-2020-0046110 (KR), filed on Apr. 16, 2020.
Prior Publication US 2023/0199959 A1, Jun. 22, 2023
Int. Cl. H05K 1/00 (2006.01); H05K 1/02 (2006.01); H05K 1/11 (2006.01)
CPC H05K 1/116 (2013.01) [H05K 1/0298 (2013.01); H05K 2201/09827 (2013.01); H05K 2201/09854 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A circuit board comprising:
an insulating layer; and
an electrode layer passing through the insulating layer,
wherein the electrode layer includes:
a first electrode;
a second electrode disposed on the first electrode; and
a third electrode disposed between the first electrode and the second electrode and connecting the first electrode and the second electrode in a vertical direction;
wherein a width in a horizontal direction of the third electrode decreases toward the first electrode,
wherein a lower surface of the third electrode includes a first convex portion convex toward the first electrode,
wherein an upper surface of the first electrode includes a first concave portion concave toward a lower surface of the first electrode, and
wherein a width of the first concave portion in the horizontal direction is less than or equal to a width of the first convex portion in the horizontal direction.