A coil component includes a support substrate, a coil portion including a first conductive layer being in contact with one surface of the support substrate, and a second conductive layer disposed on the first conductive layer to be spaced apart from the one surface of the support substrate, and a body including the support substrate and the coil portion embedded in the body. One side of the first conductive layer is closer to a center of the second conductive layer in a width direction of the coil portion than one side of the second conductive layer.

In the coil component, since the contact area between the external terminal electrode and the element body is increased by the protrusion of the external terminal electrode, the external terminal electrode and the element body are more closely attached to each other. Therefore, the attachment strength between the external terminal electrode and the element body can be improved. Hence, it is possible to suppress peeling of the external terminal electrode from the element body.

A coil component includes a support substrate and a coil portion disposed on the support substrate, a body, in which the support substrate and the coil portion are embedded, having one surface and the other surface, one side surface and the other side surface, and one end surface and the other end surface, a first lead-out portion and a second lead-out portion, respectively extending from the coil portion to be exposed from the one side surface and the other side surface, an insulating layer disposed on each of the one surface and the other surface, and an oxide insulating layer disposed on each of the one side surface and the other side surface and each of the one end surface and the other end surface. The insulating layer is provided with a plurality of slits spaced apart from each other to expose a surface of the body.

A coil component includes a support substrate, a coil portion disposed on at least one surface of the support substrate, a body, in which the support substrate and the coil portion are disposed, having one surface and the other surface opposing each other, a first external electrode and a second external electrode disposed on the other surface of the body to be spaced apart from each other and connected to the coil portion, a marking portion disposed on the one surface of the body, and a first insulating layer disposed on the one surface of the body and having an opening exposing the marking portion. The marking portion has a thickness less than or equal to a thickness of the first insulating layer.

A component for manufacturing an insulating spacer for electromagnetic induction apparatuses. Said component is formed by a body of plastic material having opposite first and second surfaces, opposite first and second sides and opposite third and fourth sides, a first distance between said first and second surfaces. At least one of said first and second sides comprises coupling means for coupling with complementary coupling means of a further one of such component for manufacturing said insulating spacer.

A coil component includes a body having a molded portion and a cover portion disposed on one surface of the molded portion, and including magnetic metal powder; a winding coil disposed between one surface of the molded portion and the cover portion and embedded in the body, and including a coating layer surrounding a surface of each of a plurality of turns; and a first protective film disposed between the one surface of the molded portion and the cover portion and between at least a portion of the surface of the winding coil and the cover portion.

Disclosed are a waterproof transformer coil structure and a manufacturing method thereof. The waterproof transformer coil structure includes: an insulating cylinder configured for supporting a transformer coil; a strut configured for being wound with the transformer coil, where the strut is mounted on the insulating cylinder, and the strut is provided with strip-shaped notches; and a winding wire, where the winding wire is wound on the strip-shaped notches.

An electronic component includes a glass ceramic layer and a conductor layer. The glass ceramic layer includes feldspar crystal phases, non-crystalline glass phases, and Al.sub.2O.sub.3 phases. The area ratio of the feldspar crystal phases in the vicinity of the conductor layer is larger than the area ratio of the feldspar crystal phases away from the conductor layer.

A coil component includes a body having a first surface and a second surface opposing in a thickness direction, and a first side surface and a second side surface opposing in a width direction while each connecting the first surface and the second surface to each other. A coil unit is disposed in the body. First and second external electrodes are disposed to be spaced apart from each other on the body, while respectively being connected to the coil unit. A cover portion disposed on the second surface of the body and at least partially covering the first and second external electrodes. A cross-section perpendicular to the first surface of the body and parallel to the width direction and traversing the body and the cover portion has substantially the same size in the width direction and in the thickness direction.

A multi-voltage domain device includes a semiconductor layer including a first voltage domain, a second voltage domain, and an isolation region that electrically isolates the first voltage domain and the second voltage domain in a lateral direction. The isolation region includes at least one deep trench isolation barrier. A layer stack is arranged on the semiconductor layer and includes a stack insulator layer, a first coil arranged in the stack insulator layer, and a second coil arranged in the stack insulator layer and laterally separated from the first coil in the lateral direction. The first and second coils are magnetically coupled to each other in the lateral direction. The first coil includes terminals arranged vertically over the first region and are electrically coupled to the first voltage domain, and the second coil includes terminals arranged vertically over the second region and are electrically coupled to the second voltage domain.