WO2012077413A1 - 積層チップインダクタ及びその製造方法 - Google Patents
積層チップインダクタ及びその製造方法 Download PDFInfo
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- WO2012077413A1 WO2012077413A1 PCT/JP2011/073987 JP2011073987W WO2012077413A1 WO 2012077413 A1 WO2012077413 A1 WO 2012077413A1 JP 2011073987 W JP2011073987 W JP 2011073987W WO 2012077413 A1 WO2012077413 A1 WO 2012077413A1
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- WIPO (PCT)
- Prior art keywords
- pattern
- multilayer chip
- lead
- patterns
- chip inductor
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- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000012212 insulator Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 4
- 238000010304 firing Methods 0.000 claims description 2
- 239000004020 conductor Substances 0.000 abstract description 15
- 238000000605 extraction Methods 0.000 abstract description 12
- 238000004804 winding Methods 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000003475 lamination Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009751 slip forming Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/041—Printed circuit coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/041—Printed circuit coils
- H01F41/043—Printed circuit coils by thick film techniques
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F2017/0073—Printed inductances with a special conductive pattern, e.g. flat spiral
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
Definitions
- the present invention relates to a multilayer chip inductor and a method for manufacturing the same, and more specifically to suppression of a decrease in core area due to misalignment during lamination.
- FIGS. 8E and 8F A general configuration of a conventional multilayer chip inductor is shown in FIGS. 8E and 8F.
- the circular patterns 112 to 118 and the lead patterns 120 and 124 are land patterns (connection portions) 112A, 112B, 114A, 114B, 116A, 116B, 118A, and the like for connection to the respective end portions through the through holes 130. 118B, 120A, 124A. *
- such a multilayer chip inductor 100 includes a magnetic green sheet (hereinafter referred to as “magnetic sheet”) in which through patterns 130 to 118 constituting the coil pattern 106 and through holes 130 are formed at predetermined positions.
- E1 to E4 are laminated in a predetermined order, a magnetic material sheet E5 on which an extraction pattern 120 and a through hole 130 are formed is overlaid on the upper side, and a magnetic material on which an extraction pattern 124 is formed on the lower side Sheet E6 is laminated.
- a predetermined number of magnetic sheets G not provided with a conductor pattern are laminated on top and bottom of these laminates, fired, and external layers connected to the lead patterns 120 and 124 on the end face of the obtained laminate chip 102.
- the multilayer chip inductor 100 is formed.
- a multilayer chip inductor having a structure in which the lead pattern and the winding pattern are continuously formed as described above for example, there is a technique described in Patent Document 1 below.
- the multilayer chip inductor 100 is formed using a 3/4 round conductor pattern (circulation pattern) as in the example shown in FIGS. 6 to 8 described above, a round screen having a plurality of round patterns arranged thereon, Each conductor pattern is printed on a magnetic green sheet using a drawing screen in which a plurality of drawing patterns are arranged, and magnetic sheets E1 to E6 on which each conductor pattern is printed are stacked.
- differences in overall length accuracy between screens that cannot be aligned by alignment by alignment, and alignment errors reduce stacking accuracy, cause displacement and distortion of conductor patterns, reduce core area, and reduce inductance values. There is an inconvenience of lowering. *
- FIG. 9A shows a state in which there is no stacking deviation
- FIG. 9B shows a state in which the circulation pattern and the extraction pattern are shifted.
- the present invention pays attention to the above points, and when forming a coil by laminating a plurality of insulator layers on which conductor patterns are formed, an inductance is suppressed by suppressing a decrease in core area due to misalignment of the lamination. It is an object of the present invention to provide a multilayer chip inductor that can maintain the value and can easily cope with a change in the number of turns of the coil, and a manufacturing method thereof. In addition, a magnetic body and a dielectric shall be contained in the insulator as used in the field of this invention.
- a spiral coil pattern that circulates in a substantially rectangular shape along each side of the multilayer body is embedded in the multilayer body having a substantially rectangular parallelepiped shape in which a plurality of insulator layers are stacked.
- the multilayer chip inductor comprising the multilayer chip and the external terminal electrode provided on the end face of the multilayer chip, the multilayer chip has a plurality of first patterns in which a circular pattern having connection portions at corners and ends is formed.
- An insulator layer a coil pattern formed by connecting end portions of the circumferential pattern on the plurality of first insulator layers by through holes, and upper and lower sides of a stack of the plurality of first insulator layers
- a second set of second patterns in which a drawing pattern having two connecting portions corresponding to the connecting portions and a notch portion formed between the two connecting portions and excised from the overlapping pattern is formed.
- the coil pattern and the lead pattern are through-hole connected at one of the two connecting portions of the lead pattern.
- One of the main forms is characterized in that the extraction pattern is symmetrical. *
- a method for manufacturing a multilayer chip inductor according to the present invention is the method for manufacturing a multilayer chip inductor according to claim 1, wherein the second chip layer is formed on one of the second insulator layers. A through hole is formed at a position corresponding to one of the two connecting portions of the lead pattern on the insulator layer, the first insulator layer having the circumferential pattern is laminated, and a spiral coil pattern is formed thereon.
- a plurality of first insulator layers are stacked in a predetermined order so as to be formed, and further, a position corresponding to one of the two closest connection portions of the circular pattern of the uppermost first insulator layer
- the other second insulating layer having a through hole is laminated, and the obtained laminated body is baked to form an external terminal electrode on the end face where the lead pattern is exposed.
- a spiral coil pattern is formed by laminating an insulating layer on which a circular pattern is formed, and the circular pattern is provided with connecting portions at corners and ends.
- a lead portion formed at a position that does not overlap with the surrounding portion of the coil pattern; and two connecting portions corresponding to the connecting portion of the surrounding pattern of the first insulator layer that is continuous with the lead portion and nearest
- the lead pattern having a notch formed between the two connection portions is provided above and below the coil pattern to be connected to the external terminal electrode. For this reason, even if the misalignment between the circumferential pattern and the lead pattern occurs during the stacking, the decrease in the core area can be suppressed and the inductance value can be maintained.
- there are connecting portions at two positions of the drawing pattern and connecting portions are also provided at corner portions of the winding pattern, it is possible to easily cope with a change in the number of turns of the coil.
- FIG. 1 is a diagram showing a multilayer chip inductor according to a first embodiment of the present invention, where (A) is a cross-sectional view of the chip cut in the stacking direction, and (B) is a cross-sectional view taken along line # A- # A. It is sectional drawing seen in the arrow direction.
- FIG. 3 is an exploded perspective view showing a sheet laminated structure in the production process of the multilayer chip inductor of Example 1.
- FIG. 3 is a plan view showing a turn pattern and a lead pattern of the multilayer chip inductor of Example 1.
- FIG. 3 is a plan view showing a change in core area in the multilayer chip inductor of Example 1,
- A is a state where there is no stacking deviation
- B is a state where a circular pattern and a lead pattern are shifted
- C is the above ( It is a figure which shows the planar shape of the core part in B). It is a figure which shows the other Example of this invention.
- 1A and 1B are diagrams showing a multilayer chip inductor according to the background art, where FIG. 1A is a cross-sectional view of a chip cut in the stacking direction, and FIG. 2B is a cross-sectional view taken along line # C- # C in FIG. FIG.
- FIG. 6 is a plan view showing a change in core area in the multilayer chip inductor according to the background art, in which (A) is a state where there is no stacking deviation, (B) is a state where a circular pattern and a lead pattern are shifted, and (C) is the above (B 2 is a diagram showing a planar shape of the core portion in FIG.
- FIGS. 1A and 1B are diagrams showing a multilayer chip inductor according to the present embodiment, in which FIG. 1A is a cross-sectional view of the chip cut in the stacking direction, and FIG. 1B is a cross-sectional view taken along line # A- # A. It is sectional drawing cut
- FIG. 2 is an exploded perspective view showing a sheet laminated structure in the manufacturing process of the multilayer chip inductor of the present embodiment
- FIG. 3 is a plan view showing a circumferential pattern and a lead pattern of the multilayer chip inductor of the present embodiment.
- FIG. 4A and 4B are plan views showing changes in the core area in the multilayer chip inductor of this example, where FIG. 4A shows a state in which there is no stacking deviation, FIG. 4B shows a state in which the circuit pattern and the lead pattern are shifted, and FIG. FIG. 4 is a diagram showing a planar shape of a core portion in (B).
- a magnetic sheet is used to form the multilayer chip inductor.
- a dielectric sheet may be used. *
- the multilayer chip inductor 10 of this example includes a plurality of circular patterns 30, 32, and 34 inside a substantially rectangular parallelepiped magnetic body 14 that is a multilayer body of a plurality of magnetic sheets. , 36 is embedded in a spiral coil pattern 16.
- each of the surrounding patterns 30 to 36 is substantially U-shaped, and these surrounding patterns 30 to 36 are laminated in a predetermined order, and are electrically connected via the through hole 22.
- a spiral coil pattern 16 that circulates in a rectangular shape along each side of the substantially rectangular parallelepiped magnetic body 14 is obtained.
- the external terminal electrodes 18 and 20 formed on the end face of the multilayer chip 12 and the coil pattern 16 are connected by lead patterns 40 and 42. These lead patterns 40 and 42 are formed of the same conductor as the circular patterns 30 to 36. *
- the circulation pattern 30 is formed with land patterns 30A to 30D for connection at two ends and two corners.
- the circular pattern 32 includes land patterns 32A to 32D
- the circular pattern 34 includes land patterns 34A to 34D
- the circular pattern 36 includes land patterns 36A to 36D.
- These circular patterns 30 to 36 are printed by conductors on magnetic green sheets (hereinafter referred to as “magnetic sheets”) A1 to A4 using a circular screen in which a plurality of circular patterns are arranged.
- the lead pattern 40 is formed at a position that reaches one of the short sides of the magnetic material sheet B1 and does not overlap with the surrounding portion of the spiral coil pattern 16.
- the lead portion 40A and the two land patterns 40B and 40C corresponding to the land patterns 30A and 30B of the latest circuit pattern 30 at the time of lamination are continuously formed by the same conductor.
- a notch 40D is formed between the land patterns 40B and 40C by cutting away a portion overlapping with the surrounding portion of the coil pattern 16.
- the other lead pattern 42 is formed at a position that reaches one of the short sides of the magnetic sheet B2 and does not overlap with the surrounding portion of the spiral coil pattern 16.
- the drawn portion 42A and the two land patterns 42B and 42C corresponding to the land patterns 34A and 34B of the latest round pattern 34 at the time of lamination are continuously formed by the same conductor.
- a notch 42D is formed between the land patterns 42B and 42C by cutting away a portion overlapping the surrounding portion of the coil pattern 16.
- These lead patterns 40 and 42 are printed by conductors on the magnetic sheets B1 and B2 by using a lead screen in which a plurality of lead patterns are arranged in the same manner as the circular patterns 30 to 36.
- FIG. 2 An arbitrary number of magnetic sheets D on which no conductor pattern is provided are stacked, and a magnetic sheet B1 on which a lead pattern 40 is formed is stacked thereon. Then, a through-hole 22 is formed at a position corresponding to one of the land patterns 40B and 40C of the lead pattern 40, and a magnetic sheet A1 having a circular pattern 30 is laminated. Thereafter, the magnetic sheet A1, the magnetic sheet A2, the magnetic sheet A3, the magnetic sheet A4, the magnetic sheet A1, and the like are stacked in this order, and the ends of the respective circular patterns are connected to each other through the through holes 22. Thus, a spiral coil pattern 16 is formed.
- the number of turns of the coil pattern 16 is arbitrary, but in the example shown in the drawing, the magnetic sheet A3 on which the winding pattern 34 is formed is laminated so as to be the uppermost layer, and on either of the land patterns 34A and 34D, The magnetic sheet B2 having the through hole 22 at the corresponding position and having the lead pattern 42 formed thereon is laminated. Furthermore, a desired number of other magnetic sheets D on which no conductor pattern is formed are laminated thereon.
- FIG. 4 (A) from the state where there is no stacking deviation, the circular patterns 30 to 36 forming the spiral coil pattern 16 are stacked up and down as shown in FIG. 4 (B).
- the core area 50 when the lead patterns 40 and 42 are displaced in position is only the amount that the land pattern 42C of the lead pattern 40 is shifted and blocked. That is, as shown in FIG. 4C, in this embodiment, the blocking area 52 due to the positional deviation at the time of stacking is the same as that of the above-described background art formed with the same outer dimensions (the blocking area 152 in FIG. 9C). ) And the inductance value can be maintained.
- the magnetic sheets A1 to A4 on which the substantially U-shaped circulation patterns 30 to 36 are formed are laminated to form the spiral coil pattern 16, and the corners and ends of the circulation patterns 30 to 36 are formed. Is provided with a land pattern for connection. A lead portion formed at a position not overlapping with the surrounding portion of the coil pattern 16; two land patterns that are continuous with the lead portion and that connect to the land pattern of the nearest surrounding pattern; and the two land patterns.
- the coil pattern 16 and the external terminal electrodes 18 and 20 are connected to each other by lead patterns 40 and 42 each having a cut portion formed between the patterns.
- the lead-out patterns 40 and 42 have two land patterns 40B and 40C, 42B and 42C, respectively, and land patterns are also provided at corners of the circuit patterns 30 to 36, the coil pattern 16 It is not necessary to prepare different drawing patterns depending on the number of windings, and it is possible to easily cope with changes in the number of windings. In addition, an effect of increasing the stacking accuracy can be obtained.
- this invention is not limited to the Example mentioned above, A various change can be added in the range which does not deviate from the summary of this invention.
- the following are also included.
- the shapes of the drawing patterns 40 and 42 shown in the above embodiment are merely examples, and may be appropriately changed as necessary.
- the width of the lead-out portion 60A is narrower than the distance between the ends of the land patterns 60B and 60C on the magnetic sheet B3, and is cut between these land patterns 60B and 60C.
- a lead pattern 60 having a notch 60D is formed.
- FIG. 5A the width of the lead-out portion 60A is narrower than the distance between the ends of the land patterns 60B and 60C on the magnetic sheet B3, and is cut between these land patterns 60B and 60C.
- a lead portion 66A reaching only one long side B6b of the magnetic sheet B6, two land patterns 66B and 66C, and a notch are formed on the magnetic sheet B6.
- a lead pattern 66 having 66D is formed.
- the same effects as those of the first embodiment described above can be obtained.
- the example shown in FIGS. 5A to 5D is also an example, and may be appropriately changed so as to achieve the same effect. *
- the lead pattern is connected to the land patterns at both ends of the substantially U-shaped circulation pattern.
- this is also an example, and may be changed as necessary.
- the other land pattern 36B is used as the land pattern 42C of the drawing pattern 42 as compared with the case where the land pattern 36A at the end of the circular pattern 36 and the land pattern 42B of the drawing pattern 42 are connected.
- Inductance when connected to is reduced by the length of the pattern inside the frame indicated by a dotted line in FIG. That is, fine adjustment of the inductance of the dotted line frame portion is possible.
- FIG. 5E the other land pattern 36B is used as the land pattern 42C of the drawing pattern 42 as compared with the case where the land pattern 36A at the end of the circular pattern 36 and the land pattern 42B of the drawing pattern 42 are connected.
- Inductance when connected to is reduced by the length of the pattern inside the frame indicated by a dotted line in FIG. That is, fine adjustment of the inductance of the dotted line frame portion is possible.
- the circular patterns 30 to 36 are substantially U-shaped, but any shape that can form a spiral coil pattern that circulates in a substantially rectangular shape is acceptable.
- the circular pattern 38 shown in FIG. 5G has land patterns 38A, 38B, and 38C at two substantially L-shaped end portions and one corner portion.
- the inductance can be reduced by the length of the pattern. That is, as in the case of the substantially U-shaped circulation pattern shown in FIGS. 5E and 5F described above, fine adjustment of the inductance of the dotted line frame portion is possible.
- the number of laminated magnetic sheets shown in the above embodiment is an example, and may be appropriately increased or decreased as necessary. Further, a dielectric sheet may be used instead of the magnetic sheet.
- the shape of the notches 40D, 42D, 60D, 62D, 64D, and 66D shown in the above embodiment is also an example, and the lead pattern has a shape that does not overlap with the surrounding portion of the coil pattern at a portion other than the land pattern, that is, Any shape may be used as long as it does not block the core area.
- a spiral coil pattern is formed by laminating an insulating layer on which a circular pattern is formed, and the circular pattern is provided with connecting portions at corners and ends.
- a lead portion formed at a position that does not overlap with the surrounding portion of the coil pattern; and two connecting portions corresponding to the connecting portion of the surrounding pattern of the first insulator layer that is continuous with the lead portion and nearest.
- the lead pattern having a notch formed between the two connection portions is provided above and below the coil pattern to be connected to the external terminal electrode.
- Multilayer chip inductor 12 Multilayer chip 14: Magnetic body 16: Coil pattern 18, 20: External terminal electrode 22: Through hole 30, 32, 34, 36, 38: Circulation pattern 30A-30D, 32A-32D, 34A 34D, 36A-36D, 38A-38C: Land pattern 40, 42: Draw pattern 40A, 42A: Drawer 40B, 40C, 42B, 42C: Land pattern 40D, 42D: Notch 50: Core area 52: Reduced area 60 66: Drawing pattern 60A, 62A, 64A, 66A: Drawing part 60B, 60C, 62B, 62C, 64B, 64C, 66B, 66C: Land pattern 60D, 62D, 64D, 66D: Notch 100: Multilayer chip inductor 102: Laminate chip 104: magnetism Body 106: Coil pattern 108, 110: External terminal electrode 112, 114, 116, 118: Circulation pattern 112A, 112B, 114A, 114B,
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Abstract
Description
前記ランドパターン40Bと40Cの間には、前記コイルパターン16の周回部と重畳する部分を切除した切欠き40Dが形成されている。同様に、他方の引出パターン42は、図3(F)に示すように、磁性体シートB2の短辺の一方に達し、かつ、前記螺旋状のコイルパターン16の周回部と重ならない位置に形成された引出部42Aと、積層時の直近の周回パターン34のランドパターン34A,34Bと対応する2つのランドパターン42B及び42Cとが、同一の導体によって連続形成されている。前記ランドパターン42Bと42Cの間には、前記コイルパターン16の周回部と重畳する部分を切除した切欠き42Dが形成されている。これら引出パターン40,42は、前記周回パターン30~36と同様に、引出パターンが複数配列された引出用スクリーンを用いて、磁性体シートB1及びB2の上に、導体によって印刷される。
Claims (3)
- 複数の絶縁体層が積層された略直方体形状の積層体の内部に、該積層体の各辺に沿って略矩形状に周回した螺旋状のコイルパターンが埋設された積層チップと、該積層チップの端面に設けられた外部端子電極とを備える積層チップインダクタにおいて、 前記積層チップは、 角部及び端部に接続部を有する周回パターンが形成された複数の第1の絶縁体層, 前記複数の第1の絶縁体層上の前記周回パターンの端部同士をスルーホールによって接続して形成されたコイルパターン, 前記複数の第1の絶縁体層の積層体の上下に配置されており、前記コイルパターンの周回部分と重ならない位置に形成され前記外部端子電極と接続する引出部分と、該引出部分に連続しており直近の第1の絶縁体層の周回パターンの接続部と対応する2つの接続部と、該2つの接続部の間に形成されており前記周回パターンと重なる部分を切除した切欠き部と、を有する引出パターンが形成された一組の第2の絶縁体層,を有しており、 前記コイルパターンと引出パターンが、前記引出パターンの2つの接続部のいずれかの位置で、スルーホール接続されたことを特徴とする積層チップインダクタ。
- 前記引出パターンが、対称形であることを特徴とする請求項1記載の積層チップインダクタ。
- 請求項1又は2のいずれかに記載の積層チップインダクタの製造方法であって、 一方の前記第2の絶縁体層上に、該一方の第2の絶縁体層上の引出パターンの2つの接続部のいずれかに対応する位置にスルーホールが形成され、前記周回パターンを有する第1の絶縁体層を積層し、その上に螺旋状のコイ
ルパターンを形成するように所定の順序で複数の第1の絶縁体層を積層し、 更にその上に、最上層の第1の絶縁体層の周回パターンの直近の2つの接続部のいずれかと対応する位置にスルーホールを有する他方の前記第2の絶縁体層を積層し、 得られた積層体を焼成して、前記引出パターンが露出した端面に、外部端子電極を形成することを特徴とする積層チップインダクタの製造方法。
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JP2012547736A JPWO2012077413A1 (ja) | 2010-12-08 | 2011-10-19 | 積層チップインダクタ及びその製造方法 |
US13/991,690 US8947189B2 (en) | 2010-12-08 | 2011-10-19 | Multilayer chip inductor and production method for same |
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KR101659216B1 (ko) * | 2015-03-09 | 2016-09-22 | 삼성전기주식회사 | 코일 전자부품 및 그 제조방법 |
US10147533B2 (en) * | 2015-05-27 | 2018-12-04 | Samsung Electro-Mechanics Co., Ltd. | Inductor |
KR102505440B1 (ko) * | 2016-07-07 | 2023-03-06 | 삼성전기주식회사 | 코일 부품 |
US10923259B2 (en) * | 2016-07-07 | 2021-02-16 | Samsung Electro-Mechanics Co., Ltd. | Coil component |
JP6828555B2 (ja) | 2017-03-29 | 2021-02-10 | Tdk株式会社 | コイル部品およびその製造方法 |
JP7369546B2 (ja) * | 2019-05-31 | 2023-10-26 | 太陽誘電株式会社 | コイル部品 |
JP7419884B2 (ja) * | 2020-03-06 | 2024-01-23 | Tdk株式会社 | コイル部品 |
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- 2011-10-19 US US13/991,690 patent/US8947189B2/en not_active Expired - Fee Related
- 2011-10-19 WO PCT/JP2011/073987 patent/WO2012077413A1/ja active Application Filing
- 2011-10-19 JP JP2012547736A patent/JPWO2012077413A1/ja active Pending
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CN109474104B (zh) * | 2017-09-07 | 2022-04-08 | 揖斐电株式会社 | 电机用线圈 |
Also Published As
Publication number | Publication date |
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US8947189B2 (en) | 2015-02-03 |
JPWO2012077413A1 (ja) | 2014-05-19 |
US20140132385A1 (en) | 2014-05-15 |
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