Patent ID: 12224102

DETAILED DESCRIPTION

In the drawings, an L direction refers to a first direction or a length direction, a W direction refers to a second direction or a width direction, and a T direction refers to a third direction or a thickness direction.

Hereinafter, exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings.

Various kinds of electronic components may be used in an electronic device, and various kinds of coil components may be appropriately used between these electronic components depending on their purposes in order to remove noise, or the like.

That is, the coil components used in the electronic device may be a power inductor, high frequency (HF) inductors, a general bead, a bead for a high frequency (GHz), a common mode filter, and the like.

FIG.1is a perspective view schematically illustrating a coil component according to an exemplary embodiment in the present disclosure.

FIG.2is a plan view illustrating the coil component according to the exemplary embodiment in the present disclosure.FIG.3is an enlarged view of a region A ofFIG.2, illustrating a width of each of an extension pattern and a lead pattern.FIG.4is an enlarged view of the region A ofFIG.2, illustrating an angle formed by a central line of the extension pattern and a central line of the lead pattern.

FIG.5is a plan view illustrating a coil component according to another exemplary embodiment in the present disclosure.FIG.6is an enlarged view of a region B ofFIG.5, illustrating a width of each of an extension pattern and a lead pattern.FIG.7is an enlarged view of the region B ofFIG.5, illustrating an angle formed by a central line of the extension pattern and a central line of the lead pattern.

FIG.8is a cross-sectional view taken along line I-I′ ofFIG.1.FIG.9is a cross-sectional view taken along line II-II′ ofFIG.1.

Referring toFIGS.1through9, a coil component1000according to an exemplary embodiment in the present disclosure may include a body100, a support substrate200, a coil portion300, and external electrodes410and420, and may further include an insulating film IF and/or a surface insulating layer700.

The body100may form an appearance of the coil component1000according to the present exemplary embodiment, and the coil portion300and the support substrate200are disposed in the body100.

The body100may generally have a hexahedral shape.

The body100may have a first surface101and a second surface102opposing each other in the length direction L, a third surface103and a fourth surface104opposing each other in the width direction W, and a fifth surface105and a sixth surface106opposing each other in the thickness direction T. The first to fourth surfaces101to104of the body100may correspond to walls of the body100connecting the fifth and sixth surfaces105and106of the body100to each other. Hereinafter, opposite end surfaces (one end surface and the other end surface) of the body100may refer to the first and second surfaces101and102of the body100, opposite side surfaces (one side surface and the other side surface) of the body100may refer to the third and fourth surfaces103and104of the body100, and one surface and the other surface of the body100may refer to the fifth and sixth surfaces105and106of the body100, respectively.

The body100may be formed so that the coil component1000according to the present exemplary embodiment in which the external electrodes410and420and the surface insulating layer700to be described below are formed may have a length of 2.0 mm, a width of 1.2 mm, and a thickness of 0.65 mm by way of example, but is not limited thereto. Meanwhile, the above-described numerical values are merely values assumed in design, which do not reflect a machining error or the like. Therefore, it should be understood that an allowable machining error range also falls within the scope of the present disclosure.

The length of the coil component1000described above may refer to the largest of lengths of a plurality of segments that connect the outermost boundary lines of the coil component1000and are parallel to the length direction L, in an image of a cross-section of a central portion of the coil component1000in the width direction W, the image being taken by an optical microscope or a scanning electron microscope (SEM), and the cross-section being taken along the length direction L and the thickness direction T. Alternatively, the length of the coil component1000described above may refer to an arithmetic mean of lengths of at least three of the plurality of segments that connect the outermost boundary lines of the coil component1000and are parallel to the length direction L in the image of the cross-section.

The thickness of the coil component1000described above may refer to the largest of lengths of a plurality of segments that connect the outermost boundary lines of the coil component1000and are parallel to the thickness direction T, in the image of the cross-section of the central portion of the coil component1000in the width direction W, the image being taken by an optical microscope or an SEM, and the cross-section being taken along the length direction L and the thickness direction T. Alternatively, the thickness of the coil component1000described above may refer to an arithmetic mean of lengths of at least three of the plurality of segments that connect the outermost boundary lines of the coil component1000and are parallel to the thickness direction T in the image of the cross-section.

The width of the coil component1000described above may refer to the largest of lengths of a plurality of segments that connect the outermost boundary lines of the coil component1000and are parallel to the width direction W, in an image of a cross-section of a central portion of the coil component1000in the thickness direction T, the image being taken by an optical microscope or an SEM, and the cross-section being taken along the length direction L and the width direction W. Alternatively, the width of the coil component1000described above may refer to an arithmetic mean of lengths of at least three of the plurality of segments that connect the outermost boundary lines of the coil component1000and are parallel to the width direction W in the image of the cross-section.

Alternatively, each of the length, the width, and the thickness of the coil component1000may be measured by a micrometer measurement method. According to the micrometer measurement method, measurement may be performed by zeroing a micrometer subjected to gage repeatability and reproducibility (R&R), inserting the coil component1000according to the present exemplary embodiment between tips of the micrometer, and turning a measurement lever of the micrometer. Meanwhile, when measuring the length of the coil component1000by the micrometer measurement method, the length of the coil component1000may refer to a value obtained by performing the measurement once, or an arithmetic mean of values obtained by performing the measurement multiple times. The same may apply to the width and the thickness of the coil component1000.

The body100may contain an insulating resin10and a magnetic material20. Specifically, the body100may be formed by stacking one or more magnetic composite sheets in which the magnetic material is dispersed in the insulating resin10. The magnetic material20may be ferrite or metal magnetic powder particle.

The ferrite may be, for example, at least one of spinel type ferrites such as Mg—Zn-based ferrite, Mn—Zn-based ferrite, Mn—Mg-based ferrite, Cu—Zn-based ferrite, Mg—Mn—Sr-based ferrite, or Ni—Zn-based ferrite, hexagonal ferrites such as Ba—Zn-based ferrite, Ba—Mg-based ferrite, Ba—Ni-based ferrite, Ba—Co-based ferrite, or Ba—Ni—Co-based ferrite, garnet type ferrite such as Y-based ferrite, or Li-based ferrite.

The metal magnetic powder particle may include one or more selected from the group consisting of iron (Fe), silicon (Si), chromium (Cr), cobalt (Co), molybdenum (Mo), aluminum (Al), niobium (Nb), copper (Cu), and nickel (Ni). For example, the metal magnetic powder particle may be at least one of a pure iron powder particle, an Fe—Si-based alloy powder particle, an Fe—Si—Al-based alloy powder particle, an Fe—Ni-based alloy powder particle, an Fe—Ni—Mo-based alloy powder particle, Fe—Ni—Mo—Cu-based alloy powder particle, an Fe—Co-based alloy powder particle, an Fe—Ni—Co-based alloy powder particle, an Fe—Cr-based alloy powder particle, an Fe—Cr—Si-based alloy powder particle, Fe—Si—Cu—Nb-based alloy powder particle, an Fe—Ni—Cr-based alloy powder particle, or an Fe—Cr—Al-based alloy powder particle.

The metal magnetic powder particle may be amorphous or crystalline. For example, the metal magnetic powder particle may be an Fe—Si—B—Cr based amorphous alloy powder particle, but is not necessarily limited thereto.

The ferrite and the metal magnetic powder particles may have average diameters of about 0.1 μm to 30 μm, respectively, but are not limited thereto.

The body100may include two or more kinds of magnetic materials dispersed in a resin. Here, different kinds of magnetic materials mean that magnetic materials dispersed in a resin are distinguishable from each other by any one of an average diameter, a composition, crystallinity, and a shape.

Hereinafter, it is assumed that the magnetic material is the metal magnetic powder particle20. However, the scope of the present disclosure is not limited by the body100having a structure in which the metal magnetic powder particle20is disposed in the insulating resin10.

The insulating resin10may include epoxy, polyimide, liquid crystal polymer (LCP), or the like, or mixtures thereof, but is not limited thereto.

The body100includes a core110penetrating through the support substrate200and the coil portion300to be described below. The core110may be formed by filling a through-hole penetrating through a central portion of each of the coil portion300and the support substrate200with the magnetic composite sheet, but is not limited thereto.

The support substrate200is embedded in the body100. The support substrate200is a component supporting the coil portion300to be described below.

The support substrate200may be formed of an insulating material including a thermosetting resin such as an epoxy resin, a thermoplastic resin such as a polyimide resin, or a photosensitive insulating resin or be formed of an insulating material having a reinforcement material such as a glass fiber or an inorganic filler impregnated in such an insulating resin. As an example, the support substrate200may be formed of an insulating material such as prepreg, an Ajinomoto Build-up Film (ABF), FR-4, a Bismaleimide Triazine (BT) resin, a photoimagable dielectric (PID), or the like, but is not limited thereto.

As the inorganic filler, at least one selected from the group consisting of silica (SiO2), alumina (Al2O3), silicon carbide (SiC), barium sulfate (BaSO4), talc, clay, mica powder particles, aluminum hydroxide (Al(OH)3), magnesium hydroxide (Mg(OH)2), calcium carbonate (CaCO3), magnesium carbonate (MgCO3), magnesium oxide (MgO), boron nitride (BN), aluminum borate (AlBO3), barium titanate (BaTiO3), and calcium zirconate (CaZrO3) may be used.

When the support substrate200is formed of the insulating material including the reinforcement material, the support substrate200may provide more excellent rigidity. When the support substrate200is formed of an insulating material that does not include a glass fiber, the support substrate200may be advantageous in decreasing the thickness of the coil component1000according to the present exemplary embodiment. In addition, a volume occupied by the coil portion300and/or the metal magnetic powder particle20with respect to the body100having the same size may be increased, and thus a component characteristic may be improved. When the support substrate200is formed of the insulating material including the photosensitive insulating resin, the number of processes for forming the coil portion300may be decreased, advantageous in decreasing production costs, and a fine via may be formed.

The coil portion300may be disposed in the body100, and may implement characteristics of the coil component. For example, when the coil component1000according to the present exemplary embodiment is used as a power inductor, the coil portion300may serve to store an electrical field as a magnetic field to maintain an output voltage, thereby stabilizing power of an electronic device.

The coil portion300includes coil patterns311and312, a via320, lead patterns331and332, and extension patterns341and342.

Specifically, based on the directions inFIGS.1through9, the first coil pattern311, the first lead pattern331, and the first extension pattern341are disposed on a lower surface of the support substrate200, and the second coil pattern312, the second lead pattern332, and the second extension pattern342are disposed on an upper surface of the support substrate200, the lower surface opposing the sixth surface106of the body100, and the upper surface opposing the lower surface of the support substrate200.

The via320penetrates through the support substrate200and contacts an inner end portion of each of the first coil pattern311and the second coil pattern312.

The first extension pattern341is disposed between the first coil pattern311and the first lead pattern331and connects the first coil pattern311and the first lead pattern331to each other, and the second extension pattern342is disposed between the second coil pattern312and the second lead pattern332and connects the second coil pattern312and the second lead pattern332to each other. The first and second extension patterns341and342may each have a substantially straight line shape with a substantially uniform width WE. One or ordinary skill in the art would understand that the expression “substantially uniform” refers to being uniform or the same by allowing process errors, positional deviations, and/or measurement errors that may occur in a manufacturing process.

The first and second lead patterns331and332are connected to the first and second extension patterns341and342, exposed at the first and second surfaces101and102of the body100, and connected to the first and second external electrodes410and420to be described below, respectively. Therefore, the coil portion300may function as a single coil as a whole between the first and second external electrodes410and420.

Each of the first coil pattern311and the second coil pattern312may have a planar spiral shape forming at least one turn around the core110. As an example, the first coil pattern311may format least one turn around the core110on the lower surface of the support substrate200.

The lead patterns331and332are exposed at the first and second surfaces101and102of the body100, respectively.

Specifically, the first lead pattern331is exposed at the first surface101of the body100, and the second lead pattern332is exposed at the second surface102of the body100.

Referring toFIGS.2through7, the lead pattern332may have an inner portion332A adjacent to the extension pattern342, an outer portion332C adjacent to the external electrode420, and a middle portion332B disposed between the inner portion332A and the outer portion332C.

Specifically, the first lead pattern331may have a first inner portion331A adjacent to the first extension pattern341, a first outer portion331C adjacent to the first external electrode410, and a middle portion331B disposed between the first inner portion331A and the first outer portion331C. Further, the second lead pattern332may have the second inner portion332A adjacent to the second extension pattern342, the second outer portion332C adjacent to the second external electrode420, and the second middle portion332B disposed between the second inner portion332A and the second outer portion332C.

Here, a width of the lead pattern332may be increased from the inner portion332A toward the outer portion332C. Specifically, a width WBof the middle portion332B may be larger than a width WAof the inner portion332A, and smaller than a width WCof the outer portion332C.

According to the exemplary embodiment in the present disclosure, referring toFIGS.2through4, the extension pattern342has a substantially uniform width WE, whereas, the lead pattern332may have different widths (WA, WB, and WC) depending on positions, and the width of the lead pattern332may be continuously increased from the inner portion332A toward the outer portion332C. That is, the lead pattern332may have a structure whose overall shape is a radial shape.

Referring toFIG.4, the extension pattern342and the lead pattern332may be divided based on a virtual boundary line BL. In the lead pattern332, a region adjacent to the virtual boundary line BL may be the inner portion332A, a region adjacent to the external electrode420may be the outer portion332C, and a region between the inner portion332A and the outer portion332C may be the middle portion332B.

The extension pattern342may be formed so that a virtual central line CEconnecting central points of the width WEobliquely meets a virtual central line CLconnecting central points of the widths WA, WB, and WC. In other words, both central lines CEand CLmay meet in an oblique direction while maintaining a specific angle (θ), rather than being parallel to each other or being perpendicular to each other.

Further, among opposite side surfaces defining the width WEof the extension pattern342, a side surface adjacent to the coil pattern312may be substantially coplanar with a side surface of the lead pattern332that is adjacent to the coil pattern312among opposite side surfaces defining the widths WA, WB, and WCof the lead pattern332. One or ordinary skill in the art would understand that the expression “substantially the same” refers to lying on the same plane by allowing process errors, positional deviations, and/or measurement errors that may occur in a manufacturing process.

That is, in this case, the side surfaces of the extension pattern342and the lead patterns332that are adjacent to the coil pattern312may be disposed in a substantially straight line shape in the plan views as inFIGS.2through4.

On the other hand, among opposite side surfaces defining the widths WA, WB, and WCof the lead pattern332, another side surface of the lead pattern332that is adjacent to the external electrode420may obliquely meet an inner surface of the external electrode420.

Referring toFIG.3, the other side surface of the lead pattern332, opposing, but not parallel with, the side surface of the lead pattern332adjacent to the coil pattern312, may obliquely meet the inner surface of the external electrode420.

In this embodiment, an acute angle between one side surface of the lead pattern332and the inner surface of the external electrode420may be larger than an acute angle between the other side surface of the lead pattern332and the inner surface of the external electrode420.

According to another exemplary embodiment in the present disclosure, referring toFIGS.5through7, a lead pattern332may have different widths (WA, WB, and WC) depending on positions, and the width of the lead pattern332may be continuously increased from an inner portion332A toward a middle portion332B and an outer portion332C.

However, unlike the radial structure in the above-described exemplary embodiment, in the present exemplary embodiment, the respective widths WA, WB, and WCof the inner portion332A, the middle portion332B, and the outer portion332C are substantially uniform. That is, the lead pattern332may have a structure whose overall shape is a step shape.

Referring toFIG.7, an extension pattern342and the lead pattern332may be divided based on a virtual boundary line BL. In the lead pattern332, a region adjacent to the virtual boundary line BL may be the inner portion332A, a region adjacent to the external electrode420may be the outer portion332C, and a region between the inner portion332A and the outer portion332C may be the middle portion332B.

The extension pattern342may be formed so that a virtual central line CEconnecting central points of the width WEobliquely meets a virtual central line CLconnecting central points of the widths WA, WB, and WC. In other words, both central lines CEand CLmay meet in an oblique direction while maintaining a specific angle (θ), rather than being parallel to each other or being perpendicular to each other.

Referring toFIGS.1through7, the extension pattern342may extend from one end of the coil pattern312in an oblique direction (e.g., parallel to virtual central lines CEinFIGS.4and7) with respect to an external surface of the body on which the external electrode420is disposed. In one example, the extension pattern342may include a portion substantially straight. One or ordinary skill in the art would understand that the expression “substantially straight” refers to being straight by allowing process errors, positional deviations, and/or measurement errors that may occur in a manufacturing process.

At least one of the coil patterns311and312, the via320, the lead patterns331and332, and the extension patterns341and342may include at least one conductive layer.

As an example, in a case where the second coil pattern312, the via320, the second lead pattern332, and the second extension pattern342are formed on the upper surface of the support substrate200by plating, each of the second coil pattern312, the via320, the second lead pattern332, and the second extension pattern342may include a seed layer and an electroplating layer. Here, the electroplating layer may have a single-layer structure or have a multilayer structure. The electroplating layer having the multilayer structure may be formed in a conformal film structure in which one electroplating layer is formed along a surface of another electroplating layer, or may be formed in a shape in which one electroplating layer is stacked on only one surface of another electroplating layer. The seed layer may be formed by an electroless plating method or a vapor deposition method such as sputtering. The respective seed layers of the second coil pattern312, the via320, the second lead pattern332, and the second extension pattern342may be formed integrally with each other, such that a boundary is not formed therebetween. However, the seed layers are not limited thereto. The respective electroplating layers of the second coil pattern312, the via320, the second lead pattern332, and the second extension pattern342may be formed integrally with each other, such that a boundary is not formed therebetween. However, the seed layers are not limited thereto.

As another example, in a case where the first coil pattern311, the first lead pattern331, and the first extension pattern341disposed on the lower surface of the support substrate200, and the second coil pattern312, the second lead pattern332, and the second extension pattern342disposed on the upper surface of the support substrate200are formed separately, and collectively stacked on the support substrate200to form the coil portion300, the via320may include a high-melting-point metal layer, and a low-melting-point metal layer having a melting point lower than that of the high-melting-point metal layer. Here, the low-melting-point metal layer may be formed of a solder including lead (Pb) and/or tin (Sn). At least a portion of the low-melting-point metal layer may be melted due to a pressure and a temperature at the time of the collective stacking, such that an inter-metallic compound (IMC) layer may be formed on a boundary between the low-melting-point metal layer and the second coil pattern312by way of example.

The coil pattern311, the lead pattern331, and the extension pattern341may protrude from the lower surface of the support substrate200, and the coil pattern312, the lead pattern332, and the extension pattern342may protrude from the upper surface of the support substrate200as illustrated inFIGS.8and9by way of example. As another example, the first coil pattern311, the first lead pattern331, and the first extension pattern341may protrude from the lower surface of the support substrate200, and the second coil pattern312, the second lead pattern332, and the second extension pattern342may be embedded in the upper surface of the support substrate200and upper surfaces of the second coil pattern312, the second lead pattern332, and the second extension pattern342may be exposed at the upper surface of the support substrate200. In this case, a concave portion is formed in each of the upper surface of the second coil pattern312, the upper surface of the second lead pattern332, and/or the upper surface of the second extension pattern342, such that the upper surface of the support substrate200does not have to be substantially coplanar with the upper surface of the second coil pattern312, the upper surface of the second lead pattern332, and/or the upper surface of the second extension pattern342.

Each of the coil patterns311and312, the via320, the lead patterns331and332, and the extension patterns341and342may be formed of a conductive material such as copper (Cu), aluminum (Al), silver (Ag), tin (Sn), gold (Au), nickel (Ni), lead (Pb), titanium (Ti), chromium (Cr), or alloys thereof, but is not limited thereto.

The external electrodes410and420are disposed on the body100so as to be spaced apart from each other, and are connected to the coil portion300. Specifically, the first external electrode410may be disposed on the first surface101of the body100and contact the first lead pattern331exposed at the first surface101of the body100. Further, the second external electrode420may be disposed on the second surface102of the body100and contact the second lead pattern332exposed at the second surface102of the body100.

The external electrodes410and420may be formed by a vapor deposition method such as sputtering, and/or a plating method, but are not limited thereto.

The external electrodes410and420may be formed of a conductive material such as copper (Cu), aluminum (Al), silver (Ag), tin (Sn), gold (Au), nickel (Ni), lead (Pb), chromium (Cr), titanium (Ti), or alloys thereof, but are not limited thereto. The external electrodes410and420may each have a single-layer structure or have a multilayer structure. As an example, the first external electrode410may include a first conductive layer containing silver (Ag) and copper (Cu), a second conductive layer disposed on the first conductive layer and containing nickel (Ni), and a third conductive layer disposed on the second conductive layer and containing tin (Sn). At least one of the second conductive layer or the third conductive layer may be formed so as to cover the first conductive layer, but the scope of the present disclosure is not limited thereto. At least one of the second conductive layer or the third conductive layer may be disposed only on the sixth surface106of the body100, but the scope of the present disclosure is not limited thereto. The first conductive layer may be a plating layer or a conductive resin layer formed by applying and curing a conductive resin containing conductive powder particle including at least one of copper (Cu) or silver (Ag), and a resin. The second and third conductive layers may be plating layers, but the scope of the present disclosure is not limited thereto.

The insulating film IF is disposed between the coil portion300and the body100, and between the support substrate200and the body100. The insulating film IF may be formed along the surface of the support substrate200on which the coil patterns311and312, the lead patterns331and332, and the extension patterns341and342are formed, but is not limited thereto.

The insulating film IF may be provided in order to insulate the coil portion300and the body100, and may contain any known insulating material such as parylene, but is not limited thereto. As another example, the insulating film IF may contain an insulating material such as an epoxy resin, other than parylene.

The insulating film IF may be formed by a vapor deposition method, but is not limited thereto. As another example, the insulating film IF may be formed by stacking an insulation film for forming the insulating film IF on opposite surfaces of the support substrate200on which the coil portion300is formed and then curing the insulating film. Alternatively, the insulating film IF may be formed by applying an insulating paste for forming the insulating film IF on opposite surfaces of the support substrate200on which the coil portion300is formed and then curing the insulating paste.

Meanwhile, the insulating film IF is a component that may be omitted in the present exemplary embodiment. That is, in a case where the body100has a sufficient electrical resistance at a designed operating current and voltage of the coil component1000according to the present exemplary embodiment, the insulating film IF may be omitted in the present exemplary embodiment.

The coil component1000according to the present exemplary embodiment may further include a surface insulating layer700disposed on the fifth surface105of the body100and covering the body100to protect the body100from the outside.

The surface insulating layer700may extend from the fifth surface105of the body100to at least portions of the first to fourth surfaces101to104, and the sixth surface106. In the present exemplary embodiment, the surface insulating layer700may be disposed on each of the third to sixth surfaces103to106of the body100.

At least portions of the surface insulating layer700that are disposed on the third to sixth surfaces103to106of the body100, respectively, may be formed in the same process and may be formed integrally with each other, such that a boundary is not formed therebetween. However, the scope of the present disclosure is not limited thereto.

The surface insulating layer700may contain a thermoplastic resin such as polystyrenes, vinyl acetates, polyesters, polyethylenes, polypropylenes, polyamides, rubbers, or acryls, a thermosetting resin such as phenols, epoxies, urethanes, melamines, or alkyds, a photosensitive resin, parylene, SiOx, or SiNx. The surface insulating layer700may further contain an insulating filler such as an inorganic filler, but is not limited thereto.

FIG.10is a view illustrating a coil bar2000for manufacturing the coil component1000according to an exemplary embodiment in the present disclosure.

Referring toFIG.10, the coil component1000may be produced with the coil bar2000forming a plurality of coil portions300on the support substrate200by stacking a magnetic composite sheet and performing dicing.

In the present exemplary embodiment, left and right coil portions301and302may be mirror-symmetric to each other in relation to a bar to which the plurality of coil portions300are connected. That is, in a plane of which an x axis is the length direction (L direction) and a y axis is the width direction (W direction), the left and right coil portions301and302may be symmetric to each other with respect to the y axis.

In this case, the left coil portion301may form a turn in a counterclockwise direction from an outer side of the coil portion300toward the center, and the right coil portion302may form a turn in a clockwise direction. That is, the left and right coil portions301and302may form turns in opposite directions, respectively.

FIG.11is a view illustrating a coil bar2000′ for manufacturing the coil component1000according to another exemplary embodiment in the present disclosure.

Referring toFIG.11, the coil component1000may be produced with the coil bar2000′ forming a plurality of coil portions300on the support substrate200by stacking a magnetic composite sheet and performing dicing.

In the present exemplary embodiment, left and right coil portions301and302may be origin-symmetric to each other in relation to a bar to which the plurality of coil portions300are connected. That is, in a plane of which an x axis is the length direction (L direction) and a y axis is the width direction (W direction), the left and right coil portions301and302may be origin-symmetric to each other with respect to a central point p where lead patterns of the left and right coil portions301and302meet each other.

In this case, the left coil portion301may form a turn in a counterclockwise direction from an outer side of the coil portion300toward the center, and the right coil portion302may similarly form a turn in the counterclockwise direction. That is, the left and right coil portions301and302may form turns in the same direction, respectively.

According to the present disclosure, the lead pattern332may have a radial structure or a stepped structure as described above. As a result, in comparison to a general horizontal structure according to the related art, a portion of the lead pattern332that contacts the external electrode420has a larger size, and thus a favorable direct-current resistance (Rdc) characteristic and current characteristic may be maintained. In addition, a larger space for the magnetic powder particle10may be secured in the body100due to a smaller volume of the lead pattern332, therefore, inductance (Ls) characteristics may be improved.

Further, an electrode loss that may occur at the time of performing dicing in a process of using the coil bar2000when manufacturing the coil component1000may be reduced.

As set forth above, according to the exemplary embodiment in the present disclosure, the coil component, in which the portion of the lead pattern of the coil component has a large size to improve inductance (Ls) characteristics and current characteristics, may be provided, the portion being coupled to an external electrode.

While exemplary embodiments have been shown and described above, it will be apparent to those skilled in the art that modifications and variations could be made without departing from the scope of the present disclosure as defined by the appended claims.