Circuit board

A circuit board comprising:

• a first insulating layer;
• a second insulating layer disposed on the first insulating layer and including a first through hole;
• a third insulating layer disposed on the second insulating layer and including a second through hole;
• a circuit part disposed on the second insulating layer;
• a protective insulating layer disposed on the third insulating layer;
• and
• an electronic device disposed in the first through hole,
• wherein the first through hole overlaps the second through hole in a vertical direction,
• wherein the second insulating layer includes a first inner wall forming the first through hole and having a first inclination angle with respect to an upper surface of the first insulating layer,
• wherein the third insulating layer includes a second inner wall forming the second through hole and having a second inclination angle greater than the first inclination angle with respect to the upper surface of the first insulating layer,
• wherein the circuit part includes a wiring portion non-overlapping with the first inner wall in a horizontal direction and overlapping the second inner wall in the horizontal direction,
• wherein the electronic device overlaps along the horizontal direction with the wiring portion and a contact portion that the first inner wall and the second inner wall are in contact.