JP5894114B2 - 面実装インダクタの製造方法 - Google Patents
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- 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
- H01F41/005—Impregnating or encapsulating
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- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
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- H01F17/04—Fixed inductances of the signal type with magnetic core
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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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
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- 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
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- 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
- H01F41/061—Winding flat conductive wires or sheets
- H01F41/063—Winding flat conductive wires or sheets with insulation
-
- 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
- H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
- H01F41/066—Winding non-flat conductive wires, e.g. rods, cables or cords with insulation
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- 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
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- 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
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- 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
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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
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- Y10T29/4902—Electromagnet, transformer or inductor
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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
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- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling
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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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core
-
- 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
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49174—Assembling terminal to elongated conductor
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)
Description
図6〜図9を参照しながら、本発明の第2の実施例の面実装インダクタの製造方法について説明する。図6に本発明の第2の実施例の面実装インダクタのコア部の斜視図を示す。図7に第2の実施例のコア部を加工した状態のコア部の斜視図を示す。図8に第2の実施例の導電性ペーストを塗布した状態のコア部の斜視図を示す。図9に本発明の第2の実施例の方法で作成した面実装インダクタの斜視図を示す。
図10〜図13を参照しながら、本発明の第3の実施例の面実装インダクタの製造方法について説明する。図10に本発明の第3の実施例の面実装インダクタのコア部の斜視図を示す。図11に第3の実施例のコア部を加工した状態のコア部の斜視図を示す。図12に第3の実施例の導電性ペーストを塗布した状態のコア部の斜視図を示す。図13に本発明の第3の実施例の方法で作成した面実装インダクタの斜視図を示す。
図14〜図17を参照しながら、本発明の第4の実施例の面実装インダクタの製造方法について説明する。図14に本発明の第4の実施例の面実装インダクタのコア部の斜視図を示す。図15に第4の実施例のコア部を加工した状態のコア部の斜視図を示す。図16に第4の実施例の導電性ペーストを塗布した状態のコア部の斜視図を示す。図17に本発明の第4の実施例の方法で作成した面実装インダクタの斜視図を示す。
2、12、22、32:コア部
3、13、23、33:導電性ペースト
4、14、24、34:外部電極
Claims (6)
- 導線を巻回してコイルを形成し、該コイルがコア内に埋設された面実装インダクタの製造方法において、
導線をその両端が外周に位置するように巻回して形成されたコイルが、主に金属磁性粉末と樹脂とからなる封止材を用いて形成されたコア部内に、該導線の両端部の表面がその表面に露出、延在するように埋設され、
該コア部の外部電極形成領域内において該コア表面の平滑度をその周囲の表面の平滑度よりも低下させ、
該コア部の外部電極形成領域に、熱硬化性樹脂と金属粒子を含む導電性ペーストを塗布して該コアの平滑度が低下した部分に形成された表面の凹み内に該導電性ペーストを侵入させ、該コア部と該導電性ペーストの熱硬化性樹脂を硬化させて該コア部に該コイルと導通する外部電極を形成したことを特徴とする面実装インダクタの製造方法。 - 導線を巻回してコイルを形成し、該コイルがコア内に埋設された面実装インダクタの製造方法において、
導線をその両端が外周に位置するように巻回して形成されたコイルが、主に金属磁性粉末と樹脂とからなる封止材を用いて形成されたコア部内に、該導線の両端部の表面がその表面に露出、延在するように埋設され、
該コア部の外部電極形成領域内において該コア表面の平滑度をその周囲の表面の平滑度よりも低下させ、
該コア部の外部電極形成領域に、熱硬化性樹脂と焼結温度が250℃以下の金属微粒子を含む導電性ペーストを塗布して該コアの平滑度が低下した部分に形成された凹み内に該導電性ペーストを侵入させ、該コア部を熱処理して該金属微粒子を焼結させて該コア部の表面に前記コイルと導通する外部電極を形成したことを特徴とする面実装インダクタの製造方法。 - 前記封止材の樹脂が熱硬化性樹脂からなり、前記熱処理によって、コア部を硬化させると共に前記金属微粒子を焼結させて外部電極を構成する下地電極を形成した請求項2に記載の面実装インダクタの製造方法。
- 前記金属微粒子がAg、Au、Cuのいずれかを含み、その粒径が100nmよりも小さくした請求項2又は請求項3に記載の面実装インダクタの製造方法。
- 前記導電性ペーストにおいて、さらに0.1〜10μmの粒径の金属粒子を含み、該導電性ペースト中に含まれる前記金属微粒子と該金属粒子の総和に対して、該金属粒子の割合を30〜50wt%にした請求項4に記載の面実装インダクタの製造方法。
- 前記下地電極に含有する金属の含有率を85〜98%にした請求項3乃至請求項5のいずれかに記載の面実装インダクタの製造方法。
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JP2013104668A JP5894114B2 (ja) | 2013-05-17 | 2013-05-17 | 面実装インダクタの製造方法 |
KR1020140058331A KR102157059B1 (ko) | 2013-05-17 | 2014-05-15 | 면실장 인덕터의 제조 방법 |
US14/279,032 US9659705B2 (en) | 2013-05-17 | 2014-05-15 | Method of producing surface-mount inductor |
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JP5894114B2 true JP5894114B2 (ja) | 2016-03-23 |
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WO2015115180A1 (ja) * | 2014-01-31 | 2015-08-06 | 株式会社村田製作所 | 電子部品及びその製造方法 |
JP2016201467A (ja) * | 2015-04-10 | 2016-12-01 | 東光株式会社 | 表面実装インダクタ |
US10242789B2 (en) | 2015-06-16 | 2019-03-26 | Murata Manufacturing Co., Ltd. | Method for manufacturing ceramic electronic component, and ceramic electronic component |
JP6502189B2 (ja) * | 2015-06-18 | 2019-04-17 | アルプスアルパイン株式会社 | インダクタンス素子および電子・電気機器 |
JP6477429B2 (ja) * | 2015-11-09 | 2019-03-06 | 株式会社村田製作所 | コイル部品 |
JP6465459B2 (ja) | 2015-12-24 | 2019-02-06 | 株式会社オートネットワーク技術研究所 | 複合材料成形体、リアクトル、及び複合材料成形体の製造方法 |
JP6409765B2 (ja) * | 2015-12-28 | 2018-10-24 | 株式会社村田製作所 | 表面実装インダクタ |
JP6460264B2 (ja) * | 2015-12-28 | 2019-01-30 | 株式会社村田製作所 | 表面実装インダクタ及びその製造方法 |
WO2017115603A1 (ja) * | 2015-12-28 | 2017-07-06 | 株式会社村田製作所 | 表面実装インダクタ及びその製造方法 |
WO2017135058A1 (ja) * | 2016-02-01 | 2017-08-10 | 株式会社村田製作所 | 電子部品およびその製造方法 |
WO2017135057A1 (ja) * | 2016-02-01 | 2017-08-10 | 株式会社村田製作所 | コイル部品およびその製造方法 |
JP6673161B2 (ja) * | 2016-11-24 | 2020-03-25 | 株式会社村田製作所 | コイル部品 |
JP6747273B2 (ja) * | 2016-12-13 | 2020-08-26 | 株式会社村田製作所 | 電子部品の製造方法及び電子部品 |
KR102501904B1 (ko) * | 2017-12-07 | 2023-02-21 | 삼성전기주식회사 | 권선형 인덕터 |
US11657955B2 (en) * | 2018-04-10 | 2023-05-23 | Murata Manufacturing Co., Ltd. | Surface mount inductor |
JP7187831B2 (ja) * | 2018-06-13 | 2022-12-13 | Tdk株式会社 | コイル部品 |
JP7124757B2 (ja) * | 2019-02-20 | 2022-08-24 | 株式会社村田製作所 | インダクタ |
JP7078006B2 (ja) * | 2019-04-02 | 2022-05-31 | 株式会社村田製作所 | インダクタ |
KR102679993B1 (ko) * | 2019-07-24 | 2024-07-02 | 삼성전기주식회사 | 코일 부품 |
CN110517859B (zh) * | 2019-07-25 | 2020-10-13 | 深圳顺络汽车电子有限公司 | 一种电感元器件及其制备方法 |
JP2021027202A (ja) * | 2019-08-06 | 2021-02-22 | 株式会社村田製作所 | インダクタ |
JP2021027203A (ja) * | 2019-08-06 | 2021-02-22 | 株式会社村田製作所 | インダクタ |
JP7173080B2 (ja) * | 2020-04-07 | 2022-11-16 | 株式会社村田製作所 | インダクタ |
JP7463837B2 (ja) | 2020-05-14 | 2024-04-09 | Tdk株式会社 | 電子部品 |
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