JP6115057B2 - コイル部品 - Google Patents
コイル部品 Download PDFInfo
- Publication number
- JP6115057B2 JP6115057B2 JP2012204830A JP2012204830A JP6115057B2 JP 6115057 B2 JP6115057 B2 JP 6115057B2 JP 2012204830 A JP2012204830 A JP 2012204830A JP 2012204830 A JP2012204830 A JP 2012204830A JP 6115057 B2 JP6115057 B2 JP 6115057B2
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- JP
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- Prior art keywords
- average particle
- metal magnetic
- magnetic powder
- powder
- conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004020 conductor Substances 0.000 claims description 132
- 239000002184 metal Substances 0.000 claims description 122
- 229910052751 metal Inorganic materials 0.000 claims description 122
- 239000002245 particle Substances 0.000 claims description 99
- 239000006247 magnetic powder Substances 0.000 claims description 89
- 229920005989 resin Polymers 0.000 claims description 68
- 239000011347 resin Substances 0.000 claims description 68
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 51
- 239000000758 substrate Substances 0.000 claims description 40
- 229910000889 permalloy Inorganic materials 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000000843 powder Substances 0.000 description 52
- 239000010410 layer Substances 0.000 description 46
- 230000035699 permeability Effects 0.000 description 20
- 239000000463 material Substances 0.000 description 13
- 238000007747 plating Methods 0.000 description 11
- 230000002093 peripheral effect Effects 0.000 description 10
- 238000013001 point bending Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009713 electroplating Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000010949 copper Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910017709 Ni Co Inorganic materials 0.000 description 1
- 229910003267 Ni-Co Inorganic materials 0.000 description 1
- 229910003262 Ni‐Co Inorganic materials 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
-
- 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
-
- 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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/06—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder
-
- 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
- H01F27/24—Magnetic cores
- H01F27/255—Magnetic cores made from particles
-
- 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
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F2017/0066—Printed inductances with a magnetic layer
-
- 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
- H01F2027/2809—Printed windings on stacked layers
-
- 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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
Description
2 基板
3 金属磁性粉
3a 大径粉(パーマロイ粉)
3b 中径粉(カルボニル鉄粉)
3c 小径粉(カルボニル鉄粉)
4 樹脂
2b 基板2のおもて面
2t 基板2のうら面
10a,10b 平面スパイラル導体
11a,11b 引出導体
12,16,17 スルーホール導体
12a,16a,17a 導体埋込用スルーホール
13,15a,15b ダミー引出導体
14 磁路形成用スルーホール
20 めっき層
21 絶縁樹脂層
22 金属磁性粉含有樹脂層
22a スルーホール磁性体
23 絶縁層
25,26 外部電極
30,31 バンプ電極
Claims (6)
- 中空部を有するコイル導体と、
前記コイル導体が設けられた基板と、
金属磁性粉含有樹脂からなり、前記基板のおもて面側から前記中空部を含む前記コイル導体の全面を覆う第1の磁性層と、
前記金属磁性粉含有樹脂からなり、前記基板のうら面側から前記中空部を含む前記コイル導体の全面を覆う第2の磁性層とを備え、
前記コイル導体は、平面スパイラル導体であり、
前記平面スパイラル導体の中空部には前記金属磁性粉含有樹脂からなる第1のスルーホール磁性体が設けられており、
前記平面スパイラル導体の外側には前記金属磁性粉含有樹脂からなる第2のスルーホール磁性体が設けられており、
前記第1及び第2のスルーホール磁性体は前記基板を貫通して前記第1の磁性層と前記第2の磁性層とを連結しており、
前記金属磁性粉含有樹脂は、
第1の平均粒径を有する第1の金属磁性粉と、
前記第1の平均粒径よりも小さな第2の平均粒径を有する第2の金属磁性粉と、
前記第2の平均粒径よりも小さな第3の平均粒径を有する第3の金属磁性粉とを含み、
前記第1の平均粒径は15〜100μmであり、
前記第3の平均粒径は2μm以下であり、
前記第3の金属磁性粉に対する前記第2の金属磁性粉の重量比は、0.33〜3であることを特徴とするコイル部品。 - 前記第1の金属磁性粉はパーマロイを主成分とし、前記第2及び第3の金属磁性粉は鉄を主成分とする、請求項1に記載のコイル部品。
- 前記第2の平均粒径は3〜10μmである、請求項1又は2に記載のコイル部品。
- 前記第2の平均粒径は3〜5μmであり、
前記第3の平均粒径は1μm以下である、請求項3に記載のコイル部品。 - 前記第1乃至前記第3の金属磁性粉の全体に対する前記第1の金属磁性粉の重量比は、0.7〜0.8である、請求項1乃至4のいずれか一項に記載のコイル部品。
- 前記第1の金属磁性粉、前記第2の金属磁性粉、及び前記第3の金属磁性粉の重量比は、6:1:1である、請求項5に記載のコイル部品。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012204830A JP6115057B2 (ja) | 2012-09-18 | 2012-09-18 | コイル部品 |
US14/018,293 US9406420B2 (en) | 2012-09-18 | 2013-09-04 | Coil component and magnetic metal powder containing resin used therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012204830A JP6115057B2 (ja) | 2012-09-18 | 2012-09-18 | コイル部品 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014060284A JP2014060284A (ja) | 2014-04-03 |
JP6115057B2 true JP6115057B2 (ja) | 2017-04-19 |
Family
ID=50273874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012204830A Active JP6115057B2 (ja) | 2012-09-18 | 2012-09-18 | コイル部品 |
Country Status (2)
Country | Link |
---|---|
US (1) | US9406420B2 (ja) |
JP (1) | JP6115057B2 (ja) |
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JP6331953B2 (ja) * | 2014-10-15 | 2018-05-30 | 株式会社村田製作所 | 電子部品 |
JP6550731B2 (ja) * | 2014-11-28 | 2019-07-31 | Tdk株式会社 | コイル部品 |
US10468184B2 (en) * | 2014-11-28 | 2019-11-05 | Tdk Corporation | Coil component having resin walls and method for manufacturing the same |
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