JP2020178091A - コイル部品及びその製造方法 - Google Patents
コイル部品及びその製造方法 Download PDFInfo
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- JP2020178091A JP2020178091A JP2019080783A JP2019080783A JP2020178091A JP 2020178091 A JP2020178091 A JP 2020178091A JP 2019080783 A JP2019080783 A JP 2019080783A JP 2019080783 A JP2019080783 A JP 2019080783A JP 2020178091 A JP2020178091 A JP 2020178091A
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- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 229920005989 resin Polymers 0.000 claims abstract description 109
- 239000011347 resin Substances 0.000 claims abstract description 109
- 239000004020 conductor Substances 0.000 claims abstract description 103
- 239000002184 metal Substances 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000002245 particle Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000003746 surface roughness Effects 0.000 claims abstract description 5
- 238000007747 plating Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 description 19
- 239000011248 coating agent Substances 0.000 description 15
- 238000000576 coating method Methods 0.000 description 15
- 239000002131 composite material Substances 0.000 description 11
- 229910045601 alloy Inorganic materials 0.000 description 9
- 239000000956 alloy Substances 0.000 description 9
- 239000010949 copper Substances 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002159 nanocrystal Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 239000006072 paste Substances 0.000 description 2
- 229910000889 permalloy Inorganic materials 0.000 description 2
- 229910019819 Cr—Si Inorganic materials 0.000 description 1
- 229910017518 Cu Zn Inorganic materials 0.000 description 1
- 229910017752 Cu-Zn Inorganic materials 0.000 description 1
- 229910017943 Cu—Zn Inorganic materials 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- 229910017061 Fe Co Inorganic materials 0.000 description 1
- 229910017060 Fe Cr Inorganic materials 0.000 description 1
- 229910002544 Fe-Cr Inorganic materials 0.000 description 1
- 229910017082 Fe-Si Inorganic materials 0.000 description 1
- 229910017133 Fe—Si Inorganic materials 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910003296 Ni-Mo Inorganic materials 0.000 description 1
- 229910018605 Ni—Zn Inorganic materials 0.000 description 1
- 229910002796 Si–Al Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- H01F41/10—Connecting leads to windings
-
- 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
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- 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
- H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
-
- 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
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- 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
-
- 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
-
- 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
-
- 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
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
-
- 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
- H01F41/06—Coil winding
- H01F41/076—Forming taps or terminals while winding, e.g. by wrapping or soldering the wire onto pins, or by directly forming terminals from the wire
-
- 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
- H01F41/06—Coil winding
- H01F41/098—Mandrels; Formers
-
- 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
- H01F41/12—Insulating of windings
- H01F41/127—Encapsulating or impregnating
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
10 磁性素体
10a 実装面
10b 側面
11 下側磁性素体
11a 平板部
11b 凸部
11c 開口部
12 上側磁性素体
21,22 端子電極
30 コイル導体
31 コイル導体の一端
32 コイル導体の他端
33 絶縁被覆
41 第1の導電性樹脂
42 第2の導電性樹脂
43 金属膜
50 樹脂被膜
A 露出面
A1 外部露出面
A2 内部露出面
B 非露出面
Claims (6)
- 磁性素体と、
前記磁性素体に埋め込まれ、端部が前記磁性素体から露出するコイル導体と、
前記コイル導体の前記端部に接続された端子電極と、を備え、
前記端子電極は、前記コイル導体の前記端部と接し、導電性粒子と樹脂材料を含む導電性樹脂と、前記導電性樹脂を覆う金属膜とを有し、
前記コイル導体の前記端部は、前記磁性素体から露出し、前記導電性樹脂と接する露出面と、前記磁性素体に覆われる非露出面とを有し、
前記露出面は、前記非露出面よりも表面粗さが大きいことを特徴とするコイル部品。 - 前記コイル導体の前記露出面は、前記磁性素体の外側に位置する外部露出面と、前記磁性素体と接することなく前記磁性素体に埋め込まれた内部露出面を有し、
前記導電性樹脂は、前記外部露出面及び内部露出面の両方と接していることを特徴とする請求項1に記載のコイル部品。 - 前記磁性素体の表面は樹脂皮膜で覆われており、前記導電性樹脂の一部は、前記樹脂皮膜上に形成されていることを特徴とする請求項1又は2に記載のコイル部品。
- 前記導電性樹脂に含まれる前記導電性粒子は、焼結金属を介して接合されていることを特徴とする請求項1乃至3のいずれか一項に記載のコイル部品。
- 前記磁性素体は、前記コイル導体の内径領域に位置する下側磁性素体と、前記コイル導体の外側領域に位置する上側磁性素体とを含み、
前記下側磁性素体は、前記上側磁性素体よりも密度が高いことを特徴とする請求項1乃至4のいずれか一項に記載のコイル部品。 - コイル導体の端部が露出するよう、前記コイル導体を磁性素体に埋め込む第1の工程と、
前記磁性素体の表面を樹脂皮膜で覆う第2の工程と、
レーザービームを照射することにより、前記コイル導体の前記端部が露出するまで前記樹脂皮膜を部分的に剥離する第3の工程と、
前記コイル導体の前記端部と接するよう、前記磁性素体及び前記樹脂皮膜の表面に導電性樹脂を形成する第4の工程と、
前記導電性樹脂の表面に金属膜をメッキ形成する第5の工程と、を備え、
前記第3の工程においては、前記コイル導体の前記端部の露出面が粗面化されるまで前記レーザービームを照射することを特徴とするコイル部品の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019080783A JP7183934B2 (ja) | 2019-04-22 | 2019-04-22 | コイル部品及びその製造方法 |
TW109110181A TWI761795B (zh) | 2019-04-22 | 2020-03-26 | 線圈零件及其製造方法 |
US16/841,225 US11676755B2 (en) | 2019-04-22 | 2020-04-06 | Coil component and its manufacturing method |
CN202010321329.3A CN111834104A (zh) | 2019-04-22 | 2020-04-22 | 线圈部件及其制造方法 |
Applications Claiming Priority (1)
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JP2019080783A JP7183934B2 (ja) | 2019-04-22 | 2019-04-22 | コイル部品及びその製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2020178091A true JP2020178091A (ja) | 2020-10-29 |
JP7183934B2 JP7183934B2 (ja) | 2022-12-06 |
Family
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JP2019080783A Active JP7183934B2 (ja) | 2019-04-22 | 2019-04-22 | コイル部品及びその製造方法 |
Country Status (4)
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US (1) | US11676755B2 (ja) |
JP (1) | JP7183934B2 (ja) |
CN (1) | CN111834104A (ja) |
TW (1) | TWI761795B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020178090A (ja) * | 2019-04-22 | 2020-10-29 | Tdk株式会社 | コイル部品及びその製造方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2022074828A (ja) * | 2020-11-05 | 2022-05-18 | Tdk株式会社 | コイル部品 |
CN117153539A (zh) * | 2023-06-07 | 2023-12-01 | 淮安顺络文盛电子有限公司 | 电感元件及其制备方法 |
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- 2019-04-22 JP JP2019080783A patent/JP7183934B2/ja active Active
-
2020
- 2020-03-26 TW TW109110181A patent/TWI761795B/zh active
- 2020-04-06 US US16/841,225 patent/US11676755B2/en active Active
- 2020-04-22 CN CN202010321329.3A patent/CN111834104A/zh active Pending
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JP2007227662A (ja) * | 2006-02-23 | 2007-09-06 | Tdk Corp | コイル部品及びコモンモードチョークコイル |
JP2010033790A (ja) * | 2008-07-28 | 2010-02-12 | Panasonic Corp | 電子部品およびその製造方法 |
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Cited By (2)
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JP2020178090A (ja) * | 2019-04-22 | 2020-10-29 | Tdk株式会社 | コイル部品及びその製造方法 |
JP7188258B2 (ja) | 2019-04-22 | 2022-12-13 | Tdk株式会社 | コイル部品及びその製造方法 |
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US20200335264A1 (en) | 2020-10-22 |
CN111834104A (zh) | 2020-10-27 |
TWI761795B (zh) | 2022-04-21 |
US11676755B2 (en) | 2023-06-13 |
TW202044292A (zh) | 2020-12-01 |
JP7183934B2 (ja) | 2022-12-06 |
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