WO2012005052A1 - 電子部品及びその製造方法 - Google Patents
電子部品及びその製造方法 Download PDFInfo
- Publication number
- WO2012005052A1 WO2012005052A1 PCT/JP2011/060958 JP2011060958W WO2012005052A1 WO 2012005052 A1 WO2012005052 A1 WO 2012005052A1 JP 2011060958 W JP2011060958 W JP 2011060958W WO 2012005052 A1 WO2012005052 A1 WO 2012005052A1
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- WIPO (PCT)
- Prior art keywords
- electronic component
- conductor
- via hole
- axis direction
- insulator layer
- Prior art date
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/303—Surface mounted components, e.g. affixing before soldering, aligning means, spacing means
- H05K3/305—Affixing by adhesive
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
- H01P1/20327—Electromagnetic interstage coupling
- H01P1/20336—Comb or interdigital filters
- H01P1/20345—Multilayer filters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
- H01P11/007—Manufacturing frequency-selective devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
- H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/115—Via connections; Lands around holes or via connections
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0266—Marks, test patterns or identification means
- H05K1/0269—Marks, test patterns or identification means for visual or optical inspection
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/303—Surface mounted components, e.g. affixing before soldering, aligning means, spacing means
Definitions
- the present invention relates to an electronic component and a manufacturing method thereof, and more specifically to an electronic component having a mounting surface parallel to the stacking direction and a manufacturing method thereof.
- a directional coupler described in Patent Document 1 is known as a conventional electronic component.
- a stacked body in which dielectric layers are stacked is configured. External electrodes are provided on side surfaces located at both ends in the stacking direction of the stack.
- the directional coupler as described above is mounted on a circuit board, the surface of the stacked body parallel to the stacking direction is used as a mounting surface. That is, the directional coupler is mounted on the circuit board so that the surface of the laminated body parallel to the lamination direction faces the circuit board.
- the directional coupler described in Patent Document 1 it is necessary to identify the direction of the directional coupler and mount the directional coupler on the circuit board.
- a direction identification mark is formed by apply
- the upper surface of the laminated body is not formed by the main surface of the dielectric layer, but is formed by connecting side surfaces of the dielectric layer. Therefore, small irregularities are formed on the upper surface of the laminate. Therefore, it is difficult to form a direction identification mark on the upper surface of such a laminate by screen printing.
- an object of the present invention is to provide an electronic component that can easily form a direction identification mark and a method for manufacturing the same.
- An electronic component includes a stacked body that is configured by stacking a plurality of insulator layers and that has a mounting surface parallel to the stacking direction, and the stacked body. And a via hole filling portion in which a via hole provided in the insulator layer is filled with a material different from the insulator layer is exposed from the upper surface of the stacked body parallel to the mounting surface.
- the direction identification mark is provided.
- a method of manufacturing the electronic component comprising: a first step of preparing a mother laminated body provided with a via hole filling region in which a via hole is filled with a material different from the insulator layer; and cutting the mother laminated body And a second step of obtaining the laminate, wherein the via hole filling portion is formed by dividing the via hole filling region.
- the direction identification mark can be easily formed.
- FIG. 1 is a perspective view of an electronic component 10a according to the embodiment.
- FIG. 2 is an exploded perspective view of the electronic component 10a according to the embodiment.
- FIG. 3 is a diagram schematically illustrating the electronic component 10a according to the embodiment.
- the stacking direction of the electronic component 10a is defined as the z-axis direction, and when viewed in plan from the z-axis direction, the direction along the long side of the electronic component 10a is defined as the x-axis direction, and the short side of the electronic component 10a
- the direction along is defined as the y-axis direction.
- the x axis, the y axis, and the z axis are orthogonal to each other.
- the electronic component 10a includes a laminate 12, external electrodes 14 (14a to 14d), a main line ML, a sub line SL, and a direction identification mark MK.
- the laminated body 12 has a rectangular parallelepiped shape, and includes a main line ML and a sub line SL.
- the stacked body 12 has a mounting surface S1 parallel to the z-axis direction. More specifically, the mounting surface S1 is a bottom surface on the negative direction side in the y-axis direction of the stacked body 12. Moreover, the laminated body 12 has the upper surface S2 parallel to the mounting surface S1.
- the upper surface S2 is a surface on the positive direction side in the y-axis direction of the stacked body 12.
- the laminated body 12 is configured by laminating the insulator layers 16 (16a to 16q) so that they are arranged in this order from the negative direction side in the z-axis direction to the positive direction side.
- Each of the insulator layers 16 has a rectangular shape and is made of a dielectric material.
- the surface on the positive side in the z-axis direction of the insulator layer 16 is referred to as a front surface
- the surface on the negative direction side in the z-axis direction of the insulator layer 16 is referred to as a back surface.
- Each of the external electrodes 14a and 14b is provided on the side surface on the negative side in the z-axis direction of the multilayer body 12, as shown in FIG. That is, it is provided on the back surface of the insulator layer 16a.
- the external electrode 14a is located on the positive side in the x-axis direction with respect to the external electrode 14b.
- the external electrodes 14 a and 14 b are provided only on the negative side surface in the z-axis direction of the multilayer body 12, and are not provided on the other surfaces of the multilayer body 12.
- the external electrodes 14c and 14d are provided on the side surface on the positive side of the z-axis direction of the multilayer body 12, respectively. That is, it is provided on the surface of the insulator layer 16q.
- the external electrode 14c is located on the positive side in the x-axis direction with respect to the external electrode 14d.
- the external electrodes 14 c and 14 d are provided only on the side surface on the positive side in the z-axis direction of the multilayer body 12, and are not provided on the other surfaces of the multilayer body 12.
- the main line ML is connected between the external electrodes 14a and 14b, and has a spiral portion Sp1 and connecting portions Cn1 and Cn2, as shown in FIG.
- the spiral portion Sp1 is a signal line having a spiral shape that advances from the positive direction side to the negative direction side in the z-axis direction while turning counterclockwise when viewed in plan from the positive direction side in the z-axis direction. is there. That is, the spiral portion Sp1 has a central axis Ax1 parallel to the z-axis direction.
- the spiral portion Sp1 is composed of signal conductors 18a to 18f and via hole conductors b9 to b13.
- Each of the signal conductors 18a to 18f is made of a conductive material, and is produced by bending a linear conductor.
- the upstream end of the signal conductor 18 in the counterclockwise direction is referred to as an upstream end
- the downstream end of the signal conductor 18 in the counterclockwise direction is referred to as an upstream end. This part is called the downstream end.
- the via-hole conductors b9 to b13 penetrate the insulator layers 16h, 16g, 16f, 16e, and 16d in the z-axis direction, and connect the signal conductors 18 respectively. More specifically, the via-hole conductor b9 connects the downstream end of the signal conductor 18a and the upstream end of the signal conductor 18b. The via-hole conductor b10 connects the downstream end of the signal conductor 18b and the upstream end of the signal conductor 18c. The via-hole conductor b11 connects the downstream end of the signal conductor 18c and the upstream end of the signal conductor 18d.
- the via-hole conductor b12 connects the downstream end of the signal conductor 18d and the upstream end of the signal conductor 18e.
- the via-hole conductor b13 connects the downstream end of the signal conductor 18e and the upstream end of the signal conductor 18f.
- connection portion Cn1 connects the end portion on the positive side in the z-axis direction of the spiral portion Sp1 (that is, the upstream end of the signal conductor 18a) and the external electrode 14a, and a via-hole conductor b1 to b8.
- the via-hole conductors b1 to b8 respectively penetrate the insulator layers 16a to 16h in the z-axis direction and are connected to each other to constitute one via-hole conductor.
- connection portion Cn2 connects the end portion on the negative direction side in the z-axis direction of the spiral portion Sp1 (that is, the downstream end of the signal conductor 18f) and the external electrode 14b. b14 to b16.
- Each of the via-hole conductors b14 to b16 penetrates the insulator layers 16c, 16b, and 16a in the z-axis direction, and is connected to each other to constitute one via-hole conductor.
- the main line ML is connected between the external electrodes 14a and 14b as shown in FIG.
- the sub line SL is connected between the external electrodes 14c and 14d, and constitutes a directional coupler (circuit element) by being electromagnetically coupled to the main line ML. As shown in FIG. 2, the sub line SL includes a spiral portion Sp2 and connection portions Cn3 and Cn4.
- the spiral portion Sp2 is a signal line having a spiral shape that advances from the negative side in the z-axis direction to the positive side while turning clockwise when viewed from the positive side in the z-axis direction. . That is, the spiral portion Sp2 has a central axis Ax2 parallel to the z-axis direction. The central axis Ax2 coincides with the central axis Ax1 as shown in FIG.
- the spiral portion Sp2 includes signal conductors 18g to 18l and via hole conductors b29 to b33.
- Each of the signal conductors 18g to 18l is made of a conductive material, and is formed by bending a linear conductor.
- the upstream end of the signal conductor 18 in the clockwise direction is referred to as an upstream end
- the downstream end of the signal conductor 18 in the clockwise direction is referred to as an upstream end. Called the downstream end.
- the via-hole conductors b29 to b33 penetrate the insulator layers 16i to 16m in the z-axis direction, and connect the signal conductors 18. More specifically, the via-hole conductor b29 connects the upstream end of the signal conductor 18g and the downstream end of the signal conductor 18h.
- the via-hole conductor b30 connects the upstream end of the signal conductor 18h and the downstream end of the signal conductor 18i.
- the via-hole conductor b31 connects the upstream end of the signal conductor 18i and the downstream end of the signal conductor 18j.
- the via-hole conductor b32 connects the upstream end of the signal conductor 18j and the downstream end of the signal conductor 18k.
- the via-hole conductor b33 connects the upstream end of the signal conductor 18k and the downstream end of the signal conductor 18l.
- the connecting portion Cn3 connects the end portion on the negative side in the z-axis direction of the spiral portion Sp2 (that is, the downstream end of the signal conductor 18g) and the external electrode 14c, and a via-hole conductor b21 to b28.
- Each of the via-hole conductors b21 to b28 passes through the insulator layers 16q, 16p, 16o, 16n, 16m, 16l, 16k, and 16j in the z-axis direction, and is connected to each other to form one via-hole conductor. ing.
- the connecting portion Cn4 connects the end portion on the positive direction side in the z-axis direction of the spiral portion Sp2 (that is, the upstream end of the signal conductor 18l) and the external electrode 14d, and the via-hole conductor b34 to b36.
- the via-hole conductors b34 to b36 respectively penetrate the insulator layers 16o to 16q in the z-axis direction and are connected to each other to constitute one via-hole conductor.
- the sub line SL is connected between the external electrodes 14c and 14d as shown in FIG.
- the direction identification mark MK is provided on the upper surface S2 of the laminate 12. More specifically, the multilayer body 12 is provided with via hole conductor portions c51 to c62 in which the via hole conductor is divided in half.
- the via-hole conductor portions c51 to c62 are filled with the same conductor as the conductors constituting the main line ML and the sub-line SL with respect to the semicircular via holes penetrating the insulator layers 16c to 16n in the z-axis direction, respectively. It is constituted by.
- the via-hole conductor portions c51 to c62 respectively penetrate the insulator layers 16c to 16n in the z-axis direction, and are connected to each other to constitute one rod-like conductor portion.
- each of the via-hole conductor portions c51 to c62 has a semicircular shape when viewed in plan from the z-axis direction, and the length of the insulator layer 16c to 16n on the positive side in the y-axis direction at the chord portion. It touches the side.
- the via-hole conductor portions c51 to c62 are exposed from the upper surface S2 of the multilayer body 12.
- the direction identification mark MK is constituted by a portion exposed from the upper surface S2 of the multilayer body 12 of the via-hole conductor portions c51 to c62.
- the direction identification mark MK does not have a point-symmetric structure with respect to the center (intersection of diagonal lines) of the upper surface S2 of the laminate 12.
- the direction identification mark MK extends in the z-axis direction in the vicinity of the long side of the upper surface S2 on the negative direction side in the x-axis direction. Accordingly, the direction of the electronic component 10a can be identified using the direction identification mark MK.
- the external electrode 14a is used as an input port
- the external electrode 14b is used as a main output port
- the external electrode 14c is used as a monitor output port
- the external electrode 14d is 50 ⁇ terminated. Used as a port.
- FIG. 4 is an external perspective view of the mother laminated body 112 manufactured in the manufacturing process of the electronic component 10a.
- a ceramic green sheet to be the insulator layer 16 is prepared.
- via-hole conductors b1 to b16, b21 to b36, and b51 to b62 are formed on each ceramic green sheet to be the insulator layer 16.
- the via-hole conductors b51 to b62 mean via-hole conductors in a state before the via-hole conductor portions c51 to c62 are divided.
- the ceramic green sheet to be the insulator layer 16 is irradiated with a laser beam to form a via hole.
- the via hole is filled with a conductive paste such as Ag, Pd, Cu, Au or an alloy thereof by a method such as printing.
- a conductive paste mainly composed of Ag, Pd, Cu, Au or an alloy thereof is applied on the surface of the ceramic green sheet to be the insulator layers 16c to 16n by a screen printing method or a photolithography method.
- the signal conductor 18 is formed by applying by a method.
- the via hole may be filled with a conductive paste.
- the external electrodes 14a to 14d are formed by applying the paste by a method such as screen printing or photolithography.
- the via hole conductors b1 to b16, b21 to b36, and b51 to b62 may be formed after the signal conductor 18 and the external electrodes 14a to 14d are formed.
- each ceramic green sheet is laminated.
- the ceramic green sheets to be the insulator layers 16a to 16q are stacked and pressure-bonded one by one so that they are arranged in this order from the negative direction side to the positive direction side in the z-axis direction.
- the mother laminated body 112 provided with the via-hole conductors b51 to b62 is formed.
- the mother laminate is subjected to main pressure bonding by a hydrostatic pressure press or the like.
- the mother laminate 112 is cut with a cutting blade to obtain a laminate 12 having a predetermined size.
- the mother laminated body 112 is cut along the dotted line in FIG. 4 to divide the via-hole conductors b51 to b62 into two via-hole conductor portions c51 to c62.
- the via-hole conductor portions c51 to c62 are exposed from the upper surface S2 of the multilayer body 12.
- the unfired laminate 12 is subjected to binder removal processing and firing.
- the fired laminated body 12 is obtained through the above steps.
- the laminated body 12 is subjected to barrel processing to be chamfered.
- Ni plating / Sn plating is applied to the surface of the external electrode 14.
- the direction identification mark MK can be easily formed. More specifically, the electronic component 10a has a mounting surface S1 parallel to the z-axis direction. Therefore, the direction identification mark MK is preferably provided on the upper surface S2 parallel to the mounting surface S1. In the conventional electronic component, it is difficult to form the direction identification mark MK on the upper surface S2 parallel to the z-axis direction.
- the direction identification mark MK is formed by a process generally included in the manufacturing process of the electronic component 10a, that is, formation of a via-hole conductor and cutting of the mother laminated body. For this reason, it is not necessary to add a new process in forming the direction identification mark MK. Therefore, in the electronic component 10a, the direction identification mark MK can be easily formed.
- FIG. 5 is an external perspective view of the electronic components 10b and 10c according to the modification.
- FIG. 6 is an exploded perspective view of the electronic component according to the first modification.
- FIG. 7 is a diagram schematically showing the electronic component 10b according to the first modification.
- the laminated body 12 is provided with external electrodes 14a to 14d.
- external electrodes 14e and 14f are provided in addition to the external electrodes 14a to 14d.
- the electronic component 10a only the main line ML and the sub line SL are provided in the multilayer body 12.
- capacitors C1 to C3 are provided in the laminate 12 in addition to the main line ML and the sub line SL.
- the external electrode 14e is provided on the side surface on the negative side in the z-axis direction so as to be sandwiched between the external electrodes 14a and 14b.
- the external electrode 14f is provided on the side surface on the positive side in the z-axis direction so as to be sandwiched between the external electrodes 14c and 14d.
- the capacitor C1 is connected between the end of the spiral portion Sp1 on the positive side in the z-axis direction and the external electrode 14e.
- the capacitor C2 is connected between the end portion on the negative side in the z-axis direction of the spiral portion Sp1 and the external electrode 14e.
- the capacitor C3 is connected in parallel to the spiral portion Sp1 between the capacitors C1 and C2.
- the capacitors C1 to C3 constitute a ⁇ -type low-pass filter.
- the capacitor C1 includes a ground conductor 30a and a capacitor conductor 32a.
- the ground conductor 30a is a rectangular conductor provided on the surface of the insulator layer 16r, and is connected to the external electrode 14e via a via-hole conductor b41.
- the ground conductor 30a is not connected to the external electrodes 14a and 14b. That is, the via-hole conductors b17 and b20 are not connected.
- the capacitor conductor 32a is a rectangular conductor provided on the surface of the insulator layer 16s, and faces the ground conductor 30a.
- the capacitor conductor 32a is connected to the external electrode 14a via via-hole conductors b17 and b18.
- the capacitor conductor 32a is not connected to the external electrode 14e.
- the capacitor C2 includes a ground conductor 30a and a capacitor conductor 32b.
- the capacitor conductor 32b is a rectangular conductor provided on the surface of the insulator layer 16s and faces the ground conductor 30a.
- the capacitor conductor 32b is connected to the external electrode 14b via via hole conductors b19 and b20. On the other hand, the capacitor conductor 32b is not connected to the external electrode 14e.
- the capacitor C3 is composed of capacitor conductors 32a to 32c.
- the capacitor conductor 32c is a rectangular conductor layer provided on the surface of the insulator layer 16a and faces the capacitor conductors 32a and 32c.
- the ground conductor 30a and the capacitor conductors 32a to 32c as described above constitute capacitors C1 to C3.
- the ground conductor 30b is a rectangular conductor provided on the surface of the insulator layer 16p, and is connected to the external electrode 14f via the via-hole conductor b42.
- the external electrode 14a is used as an input port
- the external electrode 14b is used as a main output port
- the external electrode 14c is used as a monitor output port
- the external electrode 14d is 50 ⁇ terminated.
- the external electrodes 14e and 14f are used as ground ports.
- the direction identification mark MK can be easily formed in the same manner as the electronic component 10a.
- the main line ML is provided with a low-pass filter, the characteristics of the main line ML and the sub line SL are different. Therefore, it is necessary to accurately identify the direction of the electronic component 10b. Therefore, it is particularly preferable that the direction identification mark MK is provided in the electronic component 10b.
- FIG. 8 is an exploded perspective view of the electronic component 10c according to the second modification.
- FIG. 9 is a diagram schematically illustrating an electronic component 10c according to the second modification.
- FIG. 5 is used for the external perspective view of the electronic component 10c.
- resistors R1 and R2 are provided in the laminate 12 in addition to the main line ML and the sub line SL.
- the resistor R1 is connected between the negative end of the spiral portion Sp2 in the z-axis direction and the external electrodes 14e and 14f, and has a spiral shape.
- the resistor R2 is connected between the end portion on the positive side in the z-axis direction of the spiral portion Sp2 and the external electrodes 14e and 14f, and has a spiral shape.
- the resistors R1 and R2 are formed with a narrower line width than the signal line 18.
- the resistors R1 and R2 are formed, for example, by applying a resistance paste made of a high resistance material by screen printing.
- the external electrode 14a is used as an input port
- the external electrode 14b is used as a main output port
- the external electrode 14c is used as a monitor output port
- the external electrode 14d is 50 ⁇ terminated.
- the external electrodes 14e and 14f are used as ground ports.
- the direction identification mark MK can be easily formed as in the electronic component 10a.
- the resistors R1 and R2 are provided in the sub line SL, the characteristics of the main line ML and the sub line SL are different. Therefore, it is necessary to accurately identify the direction of the electronic component 10c. Therefore, it is particularly preferable that the direction identification mark MK is provided in the electronic component 10c.
- the electronic components 10a to 10c shown in the embodiment are not limited to the configurations described above, and can be changed within the scope of the gist.
- the direction identification mark MK is formed by the via hole conductor portions c51 to c62, but may be formed by a via hole filling portion made of a material other than the conductor.
- the via hole filling portion is preferably configured by filling the via hole with a material different from that of the insulator layer 16.
- the via hole filling portion is preferably configured by filling the via hole with a dielectric material different from the insulator layer 16.
- connection portions Cn1 to Cn4 are built in the laminated body 12 and are not exposed to the outside of the laminated body 12, but may be exposed from the laminated body 12. That is, the connection portions Cn1 to Cn4 may be exposed from the side surfaces or the upper surfaces at both ends in the x-axis direction. As a result, a region where a conductor can be formed in the insulator layer 16 is widened, and the degree of freedom in designing the electronic components 10a to 10c is increased.
- the present invention is useful for an electronic component and a manufacturing method thereof, and is particularly excellent in that a direction identification mark can be easily formed.
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Abstract
Description
以下に、本発明の実施形態に係る電子部品について図面を参照しながら説明する。図1は、実施形態に係る電子部品10aの斜視図である。図2は、実施形態に係る電子部品10aの分解斜視図である。図3は、実施形態に係る電子部品10aを模式的に表した図である。以下、電子部品10aの積層方向をz軸方向と定義し、z軸方向から平面視したときに、電子部品10aの長辺に沿った方向をx軸方向と定義し、電子部品10aの短辺に沿った方向をy軸方向と定義する。x軸、y軸及びz軸は互いに直交している。
次に、電子部品10aの製造方法について図1、図2及び図4を参照しながら説明する。図4は、電子部品10aの製造過程で作製されるマザー積層体112の外観斜視図である。
以上のように構成された電子部品10a及びその製造方法では、方向識別マークMKを容易に形成できる。より詳細には、電子部品10aは、z軸方向に平行な実装面S1を有している。そのため、方向識別マークMKは、実装面S1に平行な上面S2に設けられることが好ましい。従来の電子部品では、z軸方向に平行な上面S2に方向識別マークMKを形成することは困難であった。
以下に、第1の変形例に係る電子部品10bについて図面を参照しながら説明する。図5は、変形例に係る電子部品10b,10cの外観斜視図である。図6は、第1の変形例に係る電子部品の分解斜視図である。図7は、第1の変形例に係る電子部品10bを模式的に表した図である。
以下に、第2の変形例に係る電子部品10cについて図面を参照しながら説明する。図8は、第2の変形例に係る電子部品10cの分解斜視図である。図9は、第2の変形例に係る電子部品10cを模式的に表した図である。なお、電子部品10cの外観斜視図については、図5を援用する。
前記実施形態に示した電子部品10a~10cは、説明した構成に限らず、その要旨の範囲内において変更可能である。
b51~b62 ビアホール導体
Cn1~Cn4 接続部
MK 方向識別マーク
ML 主線路
S1 実装面
S2 上面
SL 副線路
Sp1,Sp2 螺旋状部
10a~10c 電子部品
12 積層体
14a~14f 外部電極
Claims (5)
- 複数の絶縁体層が積層されることにより構成され、かつ、積層方向に平行な実装面を有している積層体と、
前記積層体に設けられている回路素子と、
前記絶縁体層に設けられているビアホールに前記絶縁体層と異なる材料が充填されてなるビアホール充填部が、前記実装面と平行な前記積層体の上面から露出することにより構成されている方向識別マークと、
を備えていること、
を特徴とする電子部品。 - 前記ビアホール充填部は、前記回路素子を構成している導体と同じ材料により構成されていること、
を特徴とする請求項1に記載の電子部品。 - 前記絶縁体層は、誘電体材料により構成されており、
前記ビアホール充填部は、前記絶縁体層の誘電体材料とは異なる誘電体材料により構成されていること、
を特徴とする請求項1に記載の電子部品。 - 前記回路素子は、主線路、及び、該主線路に電磁気的に結合している副線路からなる方向性結合器であること、
を特徴とする請求項1ないし請求項3のいずれかに記載の電子部品。 - 請求項1ないし請求項4のいずれかに記載の電子部品の製造方法であって、
前記絶縁体層と異なる材料がビアホールに充填されてなるビアホール充填領域が設けられているマザー積層体を準備する第1の工程と、
前記マザー積層体をカットして前記積層体を得る第2の工程と、
を備えており、
前記第2の工程では、前記ビアホール充填領域を分割して前記ビアホール充填部を作製すること、
を特徴とする電子部品の製造方法。
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CN2011800322616A CN102960075A (zh) | 2010-07-06 | 2011-05-12 | 电子元器件及其制造方法 |
JP2012523790A JP5868317B2 (ja) | 2010-07-06 | 2011-05-12 | 電子部品及びその製造方法 |
US13/726,757 US20130112466A1 (en) | 2010-07-06 | 2012-12-26 | Electronic component and method for manufacturing the same |
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JP2010153992 | 2010-07-06 | ||
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WO2012005052A1 true WO2012005052A1 (ja) | 2012-01-12 |
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PCT/JP2011/060958 WO2012005052A1 (ja) | 2010-07-06 | 2011-05-12 | 電子部品及びその製造方法 |
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US (1) | US20130112466A1 (ja) |
JP (1) | JP5868317B2 (ja) |
CN (1) | CN102960075A (ja) |
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FR3066443B1 (fr) | 2017-05-22 | 2021-01-15 | Andre Sassi | Vehicule automobile pourvu d'un systeme de bache de protection. |
JP2018207028A (ja) * | 2017-06-08 | 2018-12-27 | Tdk株式会社 | コイル部品及びその製造方法 |
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Also Published As
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CN102960075A (zh) | 2013-03-06 |
TWI484694B (zh) | 2015-05-11 |
JP5868317B2 (ja) | 2016-02-24 |
US20130112466A1 (en) | 2013-05-09 |
TW201203684A (en) | 2012-01-16 |
JPWO2012005052A1 (ja) | 2013-09-02 |
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