CN104685586B - Inductance element - Google Patents

Abstract

The present invention relates to inductance element.Linear conductor (20) is arranged at a first type surface of magnetic layer (12b), and linear conductor (18) is arranged at another first type surface of magnetic layer (12b).It addition, side conductor (34a, 34b) is in order to be connected as helical form by linear conductor (18,20) and be arranged at the side of magnetic layer (12b).Nonmagnetic material layer (12c) is laminated in a main surface side of magnetic layer (12b), and nonmagnetic material layer (12a) is laminated in another main surface side of magnetic layer (12b).It is internally provided with linear conductor (22) at nonmagnetic material layer (12c), is internally provided with linear conductor (16) at nonmagnetic material layer (12a).Via conductors (32a, 32b) is in order to by parallel with linear conductor (20) for linear conductor (22) and be arranged at the inside of nonmagnetic layer (12c).It addition, via conductors (30a, 30b) is in order to by parallel with linear conductor (18) for linear conductor (16) and be arranged at the inside of nonmagnetic layer (12a).

Description

Inductance element

Technical field

The present invention relates to inductance element, particularly relate to the inductance unit as the application of wireless near field communication aerial coil Part.

Background technology

As disclosed in Patent Document 1 coil part is such, is known to be printed with coil pattern by being layered in interarea Magnetic sheet material, thus the element of coil pattern it is wound around in the periphery of duplexer i.e. magnetic.In this element, in order to Prevent the short circuit of coil pattern, and nonmagnetic material sheet material is covered in the outermost layer of duplexer.Further, in order to reduce coil pattern D.C. resistance component, thus the linear conductor in parallel with coil pattern is arranged at the inside of nonmagnetic material sheet material.

Patent documentation 1: Japanese Unexamined Patent Publication 2007-49737 publication

But, if arranging linear conductor at nonmagnetic material sheet material, then the height of inductance element increases.On the other hand, if Realize the low dwarfing of inductance element and the thickness of thinning nonmagnetic material sheet material, then by the manufacturing process of inductance element (especially It is the operation of barreling) end of grinding nonmagnetic material sheet material, thus there is the worry that conductor is damaged.

Summary of the invention

The inductance element that can reduce the damaged risk of conductor is provided to this end, present invention is primarily targeted at.

Inductance element (10: the most suitable labelling referring to the drawings involved in the present invention.The most identical) possess: Magnetic layer (12b), it is arranged at the 1st linear conductor (20,20 ...) of an interarea of magnetic layer, is arranged at magnetic layer Another first type surface the 2nd linear conductor (18,18 ...), in order to the 1st linear conductor and the 2nd linear conductor are connected as Helical form and be arranged at the side conductor (34a, 34a ..., 34b, 34b ...) of the side of magnetic layer, be laminated in magnetic layer A main surface side the 1st nonmagnetic material layer (12c), be laminated in another main surface side the 2nd non magnetic of magnetic layer Body layer (12a), it is arranged at the 3rd linear conductor (22,22 ...) of the inside of the 1st nonmagnetic material layer, is arranged at the 2nd nonmagnetic material 4th linear conductor (16,16 ...) of the inside of layer, it is arranged at for by the 3rd linear conductor and the 1st of the 1st linear conductor parallel connection The inside of nonmagnetic material layer the 1st connection conductor (32a, 32a ..., 32b, 32b ...) and in order to by the 4th linear conductor with 2nd linear conductor in parallel and be arranged at the inside of the 2nd nonmagnetic material layer or side the 2nd connection conductor (30a, 30a ..., 30b、30b、…、36a、36a、…、36b、36b、…)。

Being preferably, the 3rd linear conductor is arranged to overlapping with the 1st linear conductor when observing from stacked direction, and the 1st connects Conductor is equivalent to the via conductors extended in the stacking direction.

Being preferably, the 2nd connects conductor is formed at the inside of the 2nd nonmagnetic material layer.

More preferably, the 4th linear conductor is arranged to overlapping with the 2nd linear conductor when observing from stacked direction, 2nd connects the via conductors that conductor is equivalent to extend in the stacking direction.

Being preferably, the 1st linear conductor has the 1st pattern, and the 2nd linear conductor has 2nd pattern different from the 1st pattern.

Being preferably, magnetic layer includes the multiple sheet materials (SH3, SH4) being respectively provided with magnetic stacking, and the 1st is non magnetic Body layer includes the multiple sheet materials (SH5, SH6) being respectively provided with nonmagnetic material stacking, and the 2nd nonmagnetic material layer includes being respectively provided with non- Multiple sheet materials (SH0, SH1, SH2) of magnetic stacking.

According to the present invention, by the linear conductor of the inside by being arranged at side's nonmagnetic material layer be arranged at magnetic layer Side's linear conductor in parallel, the linear conductor of the inside of the opposing party's nonmagnetic material layer will be arranged at and is arranged at magnetic layer The opposing party's linear conductor is in parallel, thus reduces the D.C. resistance component of inductance.Here, for two connection conductors in parallel extremely A few side is arranged at the inside of nonmagnetic material layer.Thus, reduce and be arranged at the linear conductor of nonmagnetic material layer or connection is led The risk that body is damaged in manufacturing process.

From the below example carried out referring to the drawings describe in detail the further clear and definite present invention above-mentioned purpose, other Purpose, feature and advantage.

Accompanying drawing explanation

Fig. 1 is the exploded view of the state of the aerial coil element representing and having decomposed the present embodiment.

Fig. 2 (A) is the top view of the example representing the potsherd SH1 forming aerial coil element, and Fig. 2 (B) is table Show the top view of an example of the potsherd SH2 forming aerial coil element.

Fig. 3 (A) is the top view of the example representing the potsherd SH4 forming aerial coil element, and Fig. 3 (B) is table Show the top view of an example of the potsherd SH5 forming aerial coil element.

Fig. 4 is the axonometric chart of the outward appearance of the aerial coil element representing the present embodiment.

Fig. 5 (A) is the process chart of a part for the manufacturing process representing potsherd SH1, and Fig. 5 (B) is to represent potsherd SH1 The process chart of another part of manufacturing process.

Fig. 6 (A) is the process chart of other parts of the manufacturing process representing potsherd SH1, and Fig. 6 (B) is to represent pottery The process chart of other parts another of the manufacturing process of sheet SH1.

Fig. 7 (A) is the process chart of a part for the manufacturing process representing potsherd SH2, and Fig. 7 (B) is to represent potsherd SH2 The process chart of other parts of manufacturing process.

Fig. 8 (A) is the process chart of other parts of the manufacturing process representing potsherd SH2, and Fig. 8 (B) is to represent pottery The process chart of other parts another of the manufacturing process of sheet SH2.

Fig. 9 (A) is the process chart of a part for the manufacturing process representing potsherd SH3, and Fig. 9 (B) is to represent potsherd SH3 The process chart of other parts of manufacturing process, Fig. 9 (C) is other parts of the manufacturing process representing potsherd SH3 Process chart.

Figure 10 (A) is the process chart of a part for the manufacturing process representing potsherd SH4, and Figure 10 (B) is to represent potsherd The process chart of other parts of the manufacturing process of SH4.

Figure 11 (A) is the process chart of other parts of the manufacturing process representing potsherd SH4, and Figure 11 (B) is to represent pottery The process chart of other parts another of the manufacturing process of ceramics SH4.

Figure 12 (A) is the process chart of a part for the manufacturing process representing potsherd SH5, and Figure 12 (B) is to represent potsherd The process chart of other parts of the manufacturing process of SH5.

Figure 13 (A) is the process chart of other parts of the manufacturing process representing potsherd SH5, and Figure 13 (B) is to represent pottery The process chart of other parts another of the manufacturing process of ceramics SH5.

Figure 14 (A) is the process chart of a part for the manufacturing process representing aerial coil element, and Figure 14 (B) is to represent antenna The process chart of other parts of the manufacturing process of coil part, Figure 14 (C) is the manufacturing process representing aerial coil element The process chart of other parts.

Figure 15 is the section view of the section representing the aerial coil element made via the manufacturing process shown in Figure 14 (C) Figure.

Figure 16 is the exploded view of the state of the aerial coil element representing and having decomposed other embodiments.

Figure 17 is the sectional view of the section of the aerial coil element representing other embodiments.

Detailed description of the invention

With reference to Fig. 1, the coil antenna element 10 of the present embodiment is utilized as the radio communication sky of 13.56MHz frequency range Kind of thread elements, including being formed into potsherd SH0～SH6 that each first type surface rectangular is laminated.Wherein, potsherd SH0 ～SH2, SH5～SH6 have nonmagnetic material, potsherd SH3～SH4 has magnetic.As a result of which it is, by potsherd SH0～SH2 Form nonmagnetic material layer 12a, potsherd SH3～SH4 form magnetic layer 12b, and, potsherd SH5～SH6 formed non- Magnetic layer 12c.In other words, the duplexer 12 forming coil antenna element 10 has and utilizes nonmagnetic material layer 12a and 12b The lit-par-lit structure of clamping magnetic layer 12b.

The rectangular long limit of the first type surface of cambium layer stack 12 and minor face extend along X-axis and Y-axis respectively, duplexer The thickness of 12 increases along Z axis.At the lower surface of duplexer 12, it is correspondingly provided with conducting terminal with the position at X-direction two ends 14a and 14b.

Wherein, the size of first type surface is consistent between potsherd SH0～SH6.It addition, potsherd SH0～SH2, SH5～ SH6 with the ferrite of non magnetic (relative permeability: 1) as material, potsherd SH3～SH4 with magnetic (relative permeability: 100～ 120) ferrite is material.Further, as required by duplexer 12 or a first type surface of potsherd SH0～SH6 and Another first type surface is called " upper surface " and " lower surface ".

As shown in Fig. 2 (A)～Fig. 2 (B), the upper surface at potsherd SH1 is formed with multiple linear conductor 16,16 ..., The upper surface of potsherd SH2 is formed with multiple linear conductor 18,18 ....It addition, as shown in Fig. 3 (A)～Fig. 3 (B), at pottery The upper surface of sheet SH4 is formed with multiple linear conductor 20,20 ..., and the upper surface at potsherd SH5 is formed with multiple linear conductor 22、22、…。

Wherein, there is not linear conductor in the upper surface at potsherd SH3, magnetic presents throughout the entirety of upper surface. Equally, the most there is not linear conductor in the upper surface at nonmagnetic material sheet material SH0 and SH6, whole throughout upper surface of nonmagnetic material Body and present.

With reference to Fig. 2 (A), linear conductor 16 with to tilts relative to Y-axis direction extension posture along X-direction separate away from Arrange from D1.The Y direction two ends that the length direction two ends of linear conductor 16 stay in the upper surface than potsherd SH1 are close Inner side.It addition, the two of X-direction both sides linear conductors 16,16 are configured at the X-direction two of the upper surface than potsherd SH1 End is near inner side.

With reference to Fig. 2 (B), linear conductor 18 with to tilts relative to Y-axis direction extension posture along X-direction separate away from Arrange from D1.The length direction two ends of linear conductor 18 arrive the Y direction two ends of the upper surface of potsherd SH2.It addition, X Two linear conductors 18,18 of direction of principal axis both sides are configured at the X-direction two ends of the upper surface than potsherd SH2 near inner side.

With reference to Fig. 3 (A), linear conductor 20 arranges along X-direction D1 separated by a distance with the posture extended along Y-axis.Wire is led The length direction two ends of body 20 arrive the Y direction two ends of the upper surface of potsherd SH4.It addition, the two of X-direction both sides lines Shape conductor 20,20 is configured at the X-direction two ends of the upper surface than potsherd SH4 near inner side.

With reference to Fig. 3 (B), linear conductor 22 arranges along X-direction D1 separated by a distance with the posture extended along Y-axis.Wire The length direction two ends of conductor 22 stay in the Y direction two ends of the upper surface than potsherd SH5 near inner side.It addition, X-axis side The close inner side, X-direction two ends of upper surface than potsherd SH5 it is configured to the two of both sides linear conductors 22,22.

Linear conductor 16 on potsherd SH1 configuration in addition to the both sides in Y direction with on potsherd SH2 The configuration consistency of linear conductor 18.Therefore, when observing from Z-direction, linear conductor 16 is overlapping with linear conductor 18.Equally, The configuration of the linear conductor 22 on potsherd SH5, in addition to the both sides in Y direction, is led with the wire on potsherd SH4 The configuration consistency of body 20.Therefore, when observing from Z-direction, linear conductor 22 is overlapping with linear conductor 20.

Be equivalent to other end distance in the X-axis direction it addition, be arranged at the linear conductor 18 of potsherd SH2 from one end " D1 ", the interval of two linear conductors 20 adjacent on potsherd SH4 also corresponds to " D1 ".Further, the one of linear conductor 18 The position of end is adjusted to the position overlapping with one end of linear conductor 20 when observing from Z-direction, linear conductor 18 another The position of one end is adjusted to the position overlapping with the other end of linear conductor 20 when observing from Z-direction.It addition, wire is led Fewer than the number of linear conductor 20 one of the number of body 18.

Therefore, if observing from Z-direction, then linear conductor 18 and 20 is alternately arranged along X-direction.It addition, wire is led One end of body 18 is overlapping with one end of linear conductor 20, and the other end of linear conductor 18 is overlapping with the other end of linear conductor 20.

Upper surface at potsherd SH1 adds and is formed with Sheet Conductor 24a and 24b.Equally, upper at potsherd SH2 Surface also adds and is formed with Sheet Conductor 26a and 26b.Sheet Conductor 24a and 26a is arranged at the positive side than X-direction End is slightly towards minus side and the position of the positive side end being equivalent to Y direction.It addition, Sheet Conductor 24b and 26b is set In the minus side end than X-direction slightly towards positive side and the position of the minus side end being equivalent to Y direction.

Be equivalent to from the distance of one end of the linear conductor 18 being present in the most positive side X-direction to Sheet Conductor 26a " D1 ", also corresponds to from the other end to the distance of Sheet Conductor 26b of the linear conductor 18 being present in X-direction minus side “D1”.It addition, when observing from Z-direction, Sheet Conductor 24a and 24b is overlapping with Sheet Conductor 26a and 26b respectively.

As it is shown in figure 1, via conductors 28a is being formed with the position of Sheet Conductor 24a and 26a along the through pottery of Z-direction Ceramics SH0～SH2.It addition, via conductors 28b is being formed with the position of Sheet Conductor 24b and 26b along the through pottery of Z-direction Ceramics SH0～SH2.Therefore, Sheet Conductor 24a and 26a is connected with conducting terminal 14a via via conductors 28a.Sheet Conductor 24b and 26b is connected with conducting terminal 14b via via conductors 28b.

With further reference to Fig. 4, the side of the positive side in the Y direction of magnetic layer 12b, it is respectively formed with along Z axis side To multiple side conductor 34a extended, 34a ....It addition, the side of the minus side in the Y direction of magnetic layer 12b, respectively It is formed with multiple side conductor 34b along Z-direction extension, 34b ....

The number of side conductor 34a is consistent with the number of linear conductor 20, the number of side conductor 34b also with linear conductor The number of 20 is consistent.Arrange it addition, side conductor 34a and 34b are spaced one from distance D1 along X-direction.Further, it is present in X Side conductor 34a of the most positive side of direction of principal axis is connected with Sheet Conductor 26a, be present in side conductor 34b of X-direction minus side with Sheet Conductor 26b connects.

Therefore, the linear conductor 18 being formed from potsherd SH2, the linear conductor 20 being formed at potsherd SH4, side are led Body 34a and 34b forms coil-conductor (winding body).Owing to the inner side at coil-conductor exists magnetic, so coil-conductor As inductance function.

As it is shown in figure 1, via conductors 30a, 30a ... pass through along Z-direction in the position of linear conductor 16, one end of 16 ... Logical potsherd SH2.It addition, via conductors 30b, 30b ... linear conductor 16, the other end of 16 ... position along Z-direction Through potsherd SH2.Two linear conductors 16 and 18 overlapping when observing from Z-direction are by via conductors 30a and 30b In parallel.Being folded with nonmagnetic material between the linear conductor 16 and 18 being formed in parallel, the D.C. resistance component of inductance is because of wire Conductor 16 and reduce.

Equally, via conductors 32a, 32a ... linear conductor 22, one end of 22 ... position along the through pottery of Z-direction Ceramics SH5.It addition, via conductors 32b, 32b ... are through along Z-direction in the position of linear conductor 22, the other end of 22 ... Potsherd SH5.Two linear conductors 20 and 22 overlapping when observing from Z-direction are by via conductors 32a and 32b also Connection.Being folded with nonmagnetic material between the linear conductor 20 and 22 being formed in parallel, the D.C. resistance component of inductance is also because of wire Conductor 22 and reduce.

Potsherd SH1 main points as shown in Fig. 5 (A)～Fig. 5 (B) and Fig. 6 (A)～Fig. 6 (B) are made.First, prepare by The ceramic green sheet that nonmagnetic Ferrite Material is constituted is as master slice material BS1 (with reference to Fig. 5 (A)).Here, along X-direction and Y The a plurality of dotted line that direction of principal axis extends represents incision position.

It follows that be correspondingly formed multiple through hole HL1, HL1 ... (ginseng on master slice material BS1 with the near intersections of dotted line According to Fig. 5 (B)), and conductive paste PS1 is filled to through hole HL1 (with reference to Fig. 6 (A)).The conductive paste PS1 filled forms through hole and leads Body 28a or 28b.If the end-of-fill of conductive paste PS1, then will form linear conductor 16, the circuit diagram of Sheet Conductor 24a, 24b The first type surface (with reference to Fig. 6 (B)) that case CP1 is printed to master slice material BS1.

Should illustrate, potsherd SH0 is identical with the through hole HL1 shown in Fig. 5 (B) through by being formed on motherboard Hole, and conductive paste filling is to this through hole, then makes at lower surface printing conducting terminal 14a and 14b.

Potsherd SH2 main points as shown in Fig. 7 (A)～Fig. 7 (B) and Fig. 8 (A)～Fig. 8 (B) are made.First, prepare by The ceramic green sheet that nonmagnetic Ferrite Material is constituted is as master slice material BS2 (with reference to Fig. 7 (A)).Here, along X-direction and Y The a plurality of dotted line that direction of principal axis extends represents incision position.

It follows that the position with the both sides of the dotted line extended along X-direction is correspondingly formed multiple passing through on master slice material BS2 Through hole HL2, HL2 ... (with reference to Fig. 7 (B)), and conductive paste PS2 is filled to through hole HL2 (with reference to Fig. 8 (A)).Conductive paste PS2 A part formed via conductors 28a or 28b, conductive paste PS2 other a part formed via conductors 30a or 30b. If the end-of-fill of conductive paste PS2, then will form the coil pattern CP2 printing extremely mother of linear conductor 18, Sheet Conductor 26a, 26b One first type surface (with reference to Fig. 8 (B)) of sheet material BS2.

Potsherd SH3 makes according to the main points shown in Fig. 9 (A)～Fig. 9 (C).First, prepare by the Ferrite Material of magnetic The ceramic green sheet constituted is as master slice material BS3 (with reference to Fig. 9 (A)).Here, a plurality of void extended along X-direction and Y direction Line represents incision position.It follows that on master slice material BS3 along X-direction extend dotted line be formed multiple through hole HL3, HL3 ... (with reference to Fig. 9 (B)), and the conductive paste PS3 forming side conductor 34a or 34b is filled to through hole HL3 (reference Fig. 9 (C)).

Potsherd SH4 main points as shown in Figure 10 (A)～Figure 10 (B) and Figure 11 (A)～Figure 11 (B) are made.First, accurate The standby ceramic green sheet being made up of the Ferrite Material of magnetic is as master slice material BS4 (with reference to Figure 10 (A)).Here, along X-direction with And a plurality of dotted line that Y direction extends represents incision position.

It follows that be formed with multiple through hole HL4, HL4 ... along the dotted line extended in X-direction on master slice material BS4 (with reference to Figure 10 (B)), and the conductive paste PS4 forming side conductor 34a or 34b is filled to through hole HL4 (with reference to Figure 11 (A)).If the end-of-fill of conductive paste PS4, then coil pattern CP4 forming linear conductor 20 is printed to the one of master slice material BS4 Individual first type surface (with reference to Figure 11 (B)).

Potsherd SH5 makes according to the main points shown in Figure 12 (A)～Figure 12 (B) and Figure 13 (A)～Figure 13 (B).First, Prepare the ceramic green sheet of Ferrite Material composition of nonmagnetic material as master slice material BS5 (with reference to Figure 12 (A)).Here, along X-axis side To and Y direction extend a plurality of dotted line represent incision position.

It follows that the position with the both sides of the dotted line extended along X-direction has been correspondingly formed multiple on master slice material BS5 Through hole HL5, HL5 ... (with reference to Figure 12 (B)), and the conductive paste PS5 forming via conductors 32a or 32b is filled to through Hole HL5 (with reference to Figure 13 (A)).If the end-of-fill of conductive paste PS5, then will form the coil pattern CP5 printing of linear conductor 22 A first type surface (with reference to Figure 13 (B)) to master slice material BS5.

Master slice material BS1～BS5 of above-mentioned operation will be have passed through, be equivalent to master slice material BS0, Yi Jixiang of potsherd SH0 When the master slice material BS6 in potsherd SH6 mutually crimps with the state according to the main points stacking shown in Figure 14 (A).According to Figure 14 (A), by master slice material BS0～BS6 according to this order stacking.Now, the stratification position of each sheet material is adjusted to distribute to each sheet material Dotted line overlapping when observing from Z-direction.

The duplexer of crimping is by being cut and singualtion (with reference to Figure 14 (B)) along above-mentioned dotted line before the firing.So After, monolithic is implemented barreling, fires and a series of process (with reference to Figure 14 (C)) of plating process, thus, the sky shown in Figure 15 Line coil part 10 completes.According to Figure 15, form cubical corner (specifically, the potsherd SH0 of aerial coil element 10 And SH6) become round by barreling.

According to above explanation, linear conductor 20 is arranged at a first type surface of magnetic layer 12b, linear conductor 18 It is arranged at another first type surface of magnetic layer 12b.It addition, side conductor 34a and 34b are in order to by linear conductor 18 and 20 It is connected as helical form and is arranged at the side of magnetic layer 12b.Nonmagnetic material layer 12c is laminated in a master of magnetic layer 12b Face side, nonmagnetic material layer 12a is laminated in another main surface side of magnetic layer 12b.Set in the inside of nonmagnetic material layer 12c It is equipped with linear conductor 22, is internally provided with linear conductor 16 at nonmagnetic material layer 12a.Via conductors 32a and 32b is in order to incite somebody to action Linear conductor 22 is in parallel with linear conductor 20 and is arranged at the inside of nonmagnetic layer 12c.It addition, via conductors 30a and 30b is By linear conductor 16 in parallel with linear conductor 18 and be arranged at the inside of nonmagnetic layer 12a.

By the linear conductor 22 of the inside by being arranged at nonmagnetic material layer 12c be arranged at of magnetic layer 12b The linear conductor 20 of first type surface is in parallel, will be arranged at the linear conductor 16 of the inside of nonmagnetic material layer 12a and is arranged at magnetic The linear conductor 18 of another first type surface of layer 12b is in parallel, thus reduces the D.C. resistance component of inductance.

Here, for via conductors 32a and 32b of linear conductor 20 and 22 parallel connection is arranged at nonmagnetic material layer The inside of 12c, for being also disposed on nonmagnetic material layer 12a by via conductors 30a and 30b of linear conductor 16 and 18 parallel connection Inside.Thus, the conductor being arranged at nonmagnetic material layer 12a or 12c breakage in manufacturing process's (barreling operation) is reduced Risk.

Additionally, in the present embodiment, the linear conductor 16 of the inside being arranged at nonmagnetic material layer 12a passes through via conductors 30a and 30b is in parallel with the linear conductor 18 of magnetic layer 12b.But, as shown in figure 16, it is possible to so that being arranged at non magnetic One end of the linear conductor 16 of the inside of body layer 12a and the other end extend to the Y direction two ends of potsherd SH1 and at pottery The Y direction two sides of ceramics SH2 form side conductor 36a and 16b, utilize side conductor 36a and 36b by linear conductor 16 and 18 is in parallel.In this case, the aerial coil element 10 completed via barreling has the structure shown in Figure 17.

It addition, in the present embodiment, linear conductor 18 extends to the direction tilted relative to Y-axis, and on the other hand, wire is led Body 20 extends along Y direction.But, as long as utilizing side conductor 34a and 34b that linear conductor 18 and 20 is connected as spiral Shape, then the bearing of trend that can also make linear conductor 18 and 20 is different from the present embodiment.

Further, in the present embodiment, by Sheet Conductor 24a and 26a via via conductors 28a and conducting terminal 14a even Connect, Sheet Conductor 24b and 26b is connected with conducting terminal 14b (with reference to Fig. 1, Fig. 2 (A), Fig. 2 via via conductors 28b (B)).But, side conductor 34a and 34b are being installed in the case of printed wiring board as terminal electrode, it is not necessary to plate Shape conductor 24a, 24b, 26a, 26b, via conductors 28a, 28b and conducting terminal 14a and 14b.

Description of reference numerals:

10 ... aerial coil element；SH0～SH6 ... potsherd；12a, 12c ... nonmagnetic material layer；12b ... magnetic layer； 16,18,20,22 ... linear conductor；28a, 28b, 30a, 30b, 32a, 32b ... via conductors；34a, 34b, 36a, 36b ... side Conductor.

Claims (6)

1. an inductance element, wherein, possesses:

Magnetic layer；

It is arranged at the 1st linear conductor of a first type surface of described magnetic layer；

It is arranged at the 2nd linear conductor of another first type surface of described magnetic layer；

In order to described 1st linear conductor and described 2nd linear conductor are connected as helical form and are arranged at described magnetic layer The side conductor of side；

It is laminated in the 1st nonmagnetic material layer of a main surface side of described magnetic layer；

It is laminated in the 2nd nonmagnetic material layer of another main surface side of described magnetic layer；

It is arranged at the 3rd linear conductor of the inside of described 1st nonmagnetic material layer；

It is arranged at the 4th linear conductor of the inside of described 2nd nonmagnetic material layer；

In order to by parallel with described 1st linear conductor for described 3rd linear conductor and be arranged at the inside of described 1st nonmagnetic material layer The 1st connection conductor；And

In order to by parallel with described 2nd linear conductor for described 4th linear conductor and be arranged at the inside of described 2nd nonmagnetic material layer Or the 2nd connection conductor of side.

Inductance element the most according to claim 1, wherein,

Described 3rd linear conductor is arranged to overlapping with described 1st linear conductor when observing from stacked direction,

Described 1st connects the via conductors that conductor is equivalent to extend along described stacked direction.

Inductance element the most according to claim 1 and 2, wherein,

Described 2nd connects conductor is formed at the inside of described 2nd nonmagnetic material layer.

Inductance element the most according to claim 3, wherein,

Described 4th linear conductor is arranged to overlapping with described 2nd linear conductor when observing from stacked direction,

Described 2nd connects the via conductors that conductor is equivalent to extend along described stacked direction.

Inductance element the most according to claim 1, wherein,

Described 1st linear conductor has the 1st pattern,

Described 2nd linear conductor has 2nd pattern different from described 1st pattern.

Inductance element the most according to claim 1, wherein,

Described magnetic layer includes the multiple sheet materials being respectively provided with magnetic stacking,

Described 1st nonmagnetic material layer includes the multiple sheet materials being respectively provided with nonmagnetic material stacking,

Described 2nd nonmagnetic material layer includes the multiple sheet materials being respectively provided with described nonmagnetic material stacking.