Coil component

A coil component, comprising:

• a support substrate;
• a coil portion disposed on at least one surface of the support substrate;
• a body including the support substrate and the coil portion disposed therein;
• an external electrode disposed on at least one surface of the body and connected to the coil portion;
• and
• an insulating layer disposed in a region of the at least one surface of the body other than a region in which the external electrode is disposed,
• wherein an average roughness (Ra) of the at least one surface of the body in contact with the external electrode is different from an average roughness (Ra) of the at least one surface of the body in contact with the insulating layer,
• wherein the external electrode includes first and second external electrodes disposed on the at least one surface of the body and spaced apart from each other,
• wherein the body has a first surface and a second surface opposing each other, a third surface and a fourth surface connecting the first surface to the second surface and opposing each other, and a fifth surface and a sixth surface connecting the first surface to the second surface and opposing each other,
• wherein the coil portion includes a first lead-out pattern disposed on one surface of the support substrate and a second lead-out pattern disposed on one surface of the support substrate and spaced apart from the first lead-out pattern,
• wherein the first and second external electrodes are connected to the first and second lead-out patterns, respectively,
• wherein the first and second lead-out patterns are exposed to the second and first surfaces of the body, respectively,
• wherein the first and second external electrodes are disposed on the second and first surfaces of the body, respectively, and extending onto the sixth surface of the body and spaced apart from each other, and
• wherein an average roughness (Ra) of exposed surfaces of the first and second lead-out patterns in contact with the first and second external electrodes is less than an average roughness (Ra) of the second and first surfaces of the body in contact with the first and second external electrodes.

A coil component, comprising:

• a body including a first surface and a second surface opposing each other, a third surface and a fourth surface connecting the first surface to the second surface and opposing each other, and a fifth surface and a sixth surface connecting the first surface to the second surface and opposing each other;
• a support substrate disposed in the body;
• a coil portion disposed on at least one surface of the support substrate and including first and second lead-out patterns exposed to the second and first surfaces of the body, respectively;
• first and second external electrodes disposed on the second and first surfaces of the body, respectively, and connected to the first and second lead-out patterns of the coil portion, respectively;
• and
• an insulating layer, formed as one integrated piece, disposed in a region of the at least one surface of the body other than a region in which the external electrode is disposed,
• wherein an average roughness (Ra) of exposed surfaces of the first and second lead-out patterns in contact with the first and second external electrodes is less than an average roughness (Ra) of the second and first surfaces of the body in contact with the first and second external electrodes.