Circuit board

A circuit board, comprising:

• an insulating structure including a plurality of insulating lavers laminated in a vertical direction layer;
• an upper circuit pattern disposed on the insulating structure;
• and
• a protective layer disposed on the insulating structure and the upper circuit pattern, wherein the protective layer includes a first part having a first thickness, and a second part having a second thickness greater than the first thickness, wherein an upper surface of the second part of the protective layer includes a plurality of convex portions and a concave portion provided between the plurality of convex portions, wherein the plurality of convex portions and the concave portion of the second part of the protective layer are positioned higher than an upper surface of the upper circuit pattern, and wherein a lowermost end of the concave portion of the second part overlaps the upper circuit pattern along the vertical direction.