JP2020150064A - インダクタ - Google Patents
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- JP2020150064A JP2020150064A JP2019044776A JP2019044776A JP2020150064A JP 2020150064 A JP2020150064 A JP 2020150064A JP 2019044776 A JP2019044776 A JP 2019044776A JP 2019044776 A JP2019044776 A JP 2019044776A JP 2020150064 A JP2020150064 A JP 2020150064A
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/22—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/24—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
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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
- H01F17/04—Fixed inductances of the signal type with magnetic core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/22—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/24—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
- H01F1/26—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/28—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder dispersed or suspended in a bonding agent
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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
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- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/255—Magnetic cores made from particles
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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
- H01F27/2823—Wires
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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
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F2003/106—Magnetic circuits using combinations of different magnetic materials
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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
- H01F2017/0066—Printed inductances with a magnetic layer
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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
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F2017/048—Fixed inductances of the signal type with magnetic core with encapsulating core, e.g. made of resin and magnetic powder
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- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/32—Composite [nonstructural laminate] of inorganic material having metal-compound-containing layer and having defined magnetic layer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Composite Materials (AREA)
- Coils Or Transformers For Communication (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
本発明のインダクタの一実施形態を、図1を参照して説明する。
図1に示すように、このインダクタ1は、面方向に延びる形状を有する。具体的には、インダクタ1は、厚み方向に対向する一方面および他方面を有しており、これら一方面および他方面のいずれもが、面方向に含まれる方向であって、配線2(後述)が電流を伝送する方向(紙面奥行き方向に相当)および厚み方向に直交する第1方向に沿う平坦形状を有する。
配線2は、断面視略円形状を有する。具体的には、配線2は、電流を伝送する方向である第2方向(伝送方向)(紙面奥行き方向)に直交する断面(第1方向断面)で切断したときに、略円形状を有する。
磁性層3は、インダクタ1のインダクタンスを向上させながら、インダクタ1の直流重畳特性も向上させる。磁性層3は、配線2の外周面(円周面)全面を被覆する。これにより、磁性層3は、配線2を埋設している。磁性層3は、インダクタ1の外形を形成する。具体的には、磁性層3は、面方向(第1方向および第2方向)に延びる矩形状を有する。より具体的には、磁性層3は、厚み方向に対向する一方面および他方面を有しており、磁性層3の一方面および他方面のそれぞれが、インダクタ1の一方面および他方面のそれぞれを形成する。
第1層10、第2層20、第3層30、および、第4層40において、隣接する2つの層において、配線2により近い層の比透磁率が、配線2からより遠い層の比透磁率より、低い。
また、第1層10、第2層20、第3層30、および、第4層40において、隣接する2つの層において、配線2からより遠い層の比透磁率から、配線2により近い層の比透磁率を差し引いた値Dは、例えば、5以上、好ましくは、10以上、より好ましくは、15以上であり、また、例えば、100以下である。
磁性層3は、磁性粒子を含有する。具体的には、磁性層3の材料として、例えば、磁性粒子およびバインダを含有する磁性組成物などが挙げられる。
このインダクタ1の製造方法を、図2を参照して説明する。
第2シート52の比透磁率<第3シート53の比透磁率 (2)
第3シート53の比透磁率<第4シート54の比透磁率 (3)
具体的には、磁性粒子を含有する第1シート51、第2シート52、第3シート53、および、第4シート54を、上記のような処方で調製して、第1シート51、第2シート52、第3シート53、および、第4シート54の比透磁率を調整する。
変形例において、一実施形態と同様の部材および工程については、同一の参照符号を付し、その詳細な説明を省略する。また、変形例は、特記する以外、一実施形態と同様の作用効果を奏することができる。さらに、一実施形態およびその変形例を適宜組み合わせることができる。
以下に第1の態様〜第2の態様において、磁性層3における各層における磁性粒子の種類、形状、容積割合などを変更することにより、配線2により近い層の比透磁率を、配線2からより遠い層の比透磁率より低くした具体的態様を、図3〜図6を参照して、説明する。
第1の態様のインダクタ1を、図3〜図4を参照して、説明する。
第2の態様のインダクタ1を、図5〜図6を参照して、説明する。
図示しないが第1層10〜第4層40の全てが、例えば、等方性の磁性粒子、具体的には、略球形状の第1の磁性粒子61を含有してもよい。
<バインダの調製>
表1に記載の処方に従って、バインダを調製した。
<第1の態様に基づくインダクタの製造例>
まず、半径が130μmの配線2を準備した。導線4の半径が115μmであり、絶縁膜5の厚みが15μmである。
磁性シートの処方を表3〜表6に従って変更した以外は、実施例1と同様に、インダクタ1を製造した。
下記の事項を評価し、その結果を表2〜表7に記載する。
実施例1〜比較例1の第1シート51と、実施例1〜実施例4の第2シート52と、実施例1〜実施例4の第3シート53と、実施例1および実施例3の第4シート54とのそれぞれの比透磁率を、磁性材料テストフィクスチャを使用したインピーダンスアナライザ(Agilent社製、「4291B」)によって測定した。、
<直流重畳特性>
DCバイアステストフィクスチャおよびDCバイアス電源を取り付けたインピーダンスアナライザ(桑木エレクトロニクス社製、「65120B」)を用い、実施例1〜比較例1のインダクタ1の導線4に10Aの電流を流して、インダクタンス低下率を測定することにより、直流重畳特性を評価した。
[DCバイアス電流を印加しない状態でのインダクタンス−DCバイアス電流を印加した状態でのインダクタンス]/[DCバイアス電流を印加した状態でのインダクタンス]×100(%)
2 配線
3 磁性層
4 導線
5 絶縁膜
10 第1層
20 第2層
30 第3層
40 第4層
17 延出部
61 第1の磁性粒子(略球形状の磁性粒子)
62 第2の磁性粒子(略平板形状の磁性粒子)
Claims (6)
- 導線、および、前記導線の周面全面に配置される絶縁膜を備える配線と、
前記配線を埋設する磁性層とを備え、
前記磁性層は、磁性粒子を含み、
前記磁性層は、前記配線の周面に接触する第1層と、前記第1層の表面に接触する第2層と、・・・第(n−1)層の表面に接触する第n層とを備え(nは、3以上の正数)、
前記磁性層における隣接する2つの層において、前記配線により近い層の比透磁率が、前記配線からより遠い層の比透磁率より、低いことを特徴とする、インダクタ。 - 前記配線は、断面視略円形状を有することを特徴とする、請求項1に記載のインダクタ。
- 前記第2層〜前記第n層のいずれかの層は、前記配線と中心を共有する断面視略円弧形状を有することを特徴とする、請求項2に記載のインダクタ。
- 前記第1層〜前記第n層のいずれかの層は、前記配線から、前記配線の延びる方向および前記磁性層の厚み方向に直交する方向に延出する延出部を有することを特徴とする、請求項1〜3のいずれか一項に記載のインダクタ。
- 前記第1層に含まれる磁性粒子は、略球形状を有し、
前記第2層〜前記第n層に含まれる磁性粒子は、略扁平形状を有することを特徴とする、請求項1〜4のいずれか一項に記載のインダクタ。 - 少なくとも前記第2層に含まれる磁性粒子が、前記配線の外周面に配向していることを特徴とする、請求項1〜5のいずれか一項に記載のインダクタ。
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Publication number | Priority date | Publication date | Assignee | Title |
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JPS4888475U (ja) * | 1972-01-28 | 1973-10-25 | ||
JPS62169407A (ja) * | 1986-01-22 | 1987-07-25 | Matsushita Electric Works Ltd | インダクンス素子 |
JPH1140979A (ja) * | 1997-07-22 | 1999-02-12 | Tokin Corp | ノイズ対策部品 |
JP2009009985A (ja) * | 2007-06-26 | 2009-01-15 | Sumida Corporation | コイル部品 |
WO2009075110A1 (ja) * | 2007-12-12 | 2009-06-18 | Panasonic Corporation | インダクタンス部品およびその製造方法 |
WO2015119004A1 (ja) * | 2014-02-07 | 2015-08-13 | 株式会社村田製作所 | 高周波信号伝送線路及びその製造方法 |
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JPS4888475U (ja) * | 1972-01-28 | 1973-10-25 | ||
JPS62169407A (ja) * | 1986-01-22 | 1987-07-25 | Matsushita Electric Works Ltd | インダクンス素子 |
JPH1140979A (ja) * | 1997-07-22 | 1999-02-12 | Tokin Corp | ノイズ対策部品 |
JP2009009985A (ja) * | 2007-06-26 | 2009-01-15 | Sumida Corporation | コイル部品 |
WO2009075110A1 (ja) * | 2007-12-12 | 2009-06-18 | Panasonic Corporation | インダクタンス部品およびその製造方法 |
WO2015119004A1 (ja) * | 2014-02-07 | 2015-08-13 | 株式会社村田製作所 | 高周波信号伝送線路及びその製造方法 |
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