Coil component
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorJun Seok Oh
Life of this patent
Estimating the term…
Abstract
A coil component includes: a body including magnetic metal particles and an insulating resin; a coil portion disposed within the body and including a lead-out portion exposed to one surface of the body; a surface insulation layer disposed on the body and having an opening exposing each of at least a portion of the lead-out portion and at least a portion of the one surface of the body; and an external electrode disposed in the opening and connected to the lead-out portion, wherein a connection metal layer in which at least some of the magnetic metal particles are connected to each other is disposed in a region of the one surface of the body, exposed in the opening, and an area of a metal component including the connection metal layer in the region is 75% or more of an area of the region.
Claims15
A coil component comprising:
- a body including magnetic metal particles and an insulating resin;
- a coil portion disposed within the body and including a lead-out portion exposed to one surface of the body;
- a surface insulation layer disposed on the body and having an opening exposing at least a portion of the lead-out portion and at least a portion of the one surface of the body;
- and
- an external electrode disposed in the opening and connected to the lead-out portion,
- wherein the body includes a connection metal layer in a region of the body adjacent to the one surface of the body, wherein the connection metal layer includes a connection metal layer particle in which at least some of the magnetic metal particles are connected to each other,
- an area ratio of a metal component including the connection metal layer particles in the region is 75% or more of an area of the region,
- the magnetic metal particles include a first magnetic metal particle and a second magnetic metal particle having a smaller diameter than the first magnetic metal particle,
- a diameter of the connection metal layer particle is twice or more than a diameter of the first magnetic metal particle, and
- an average particle diameter of the first and second magnetic metal particles are in a range from 0.1 μm to 30 μm.
A coil component comprising:
- a body including:
- a first magnetic particles;
- a second magnetic particles having a smaller diameter than a diameter of the first magnetic metal particle;
- and an insulating resin;
- a coil portion disposed within the body and including a lead-out portion exposed to one surface of the body;
- a surface insulation layer disposed on the body and having an opening exposing at least a portion of the lead-out portion and at least a portion of the one surface of the body;
- and
- an external electrode disposed in the opening and connected to the lead-out portion,
- wherein the body includes a connection metal layer in a region of the body adjacent to the one surface of the body,
- the connection metal layer includes a connection metal layer particle having a diameter that is twice or more than the diameter of the first magnetic metal particle, and
- an average particle diameter of the first and second magnetic metal particles are in a range from 0.1 μm to 30 μm.
Dependencies are inferred from the claim text.