JP7841666B2 - インダクタおよびインダクタの製造方法 - Google Patents

インダクタおよびインダクタの製造方法

Info

Publication number
JP7841666B2
JP7841666B2 JP2025569271A JP2025569271A JP7841666B2 JP 7841666 B2 JP7841666 B2 JP 7841666B2 JP 2025569271 A JP2025569271 A JP 2025569271A JP 2025569271 A JP2025569271 A JP 2025569271A JP 7841666 B2 JP7841666 B2 JP 7841666B2
Authority
JP
Japan
Prior art keywords
layer region
easily oxidizable
inductor
magnetic
oxidizable material
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.)
Active
Application number
JP2025569271A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2025150243A1 (https=
JPWO2025150243A5 (https=
Inventor
和広 中村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of JPWO2025150243A1 publication Critical patent/JPWO2025150243A1/ja
Application granted granted Critical
Publication of JP7841666B2 publication Critical patent/JP7841666B2/ja
Publication of JPWO2025150243A5 publication Critical patent/JPWO2025150243A5/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/05—Metallic powder characterised by the size or surface area of the particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/16—Metallic particles coated with a non-metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • 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
    • 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
    • H01F1/33—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 mixtures of metallic and non-metallic particles; metallic particles having oxide skin
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coils Or Transformers For Communication (AREA)
JP2025569271A 2024-01-11 2024-10-21 インダクタおよびインダクタの製造方法 Active JP7841666B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2024002403 2024-01-11
JP2024002403 2024-01-11
PCT/JP2024/037430 WO2025150243A1 (ja) 2024-01-11 2024-10-21 インダクタおよびインダクタの製造方法

Publications (3)

Publication Number Publication Date
JPWO2025150243A1 JPWO2025150243A1 (https=) 2025-07-17
JP7841666B2 true JP7841666B2 (ja) 2026-04-07
JPWO2025150243A5 JPWO2025150243A5 (https=) 2026-04-14

Family

ID=96386614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2025569271A Active JP7841666B2 (ja) 2024-01-11 2024-10-21 インダクタおよびインダクタの製造方法

Country Status (3)

Country Link
JP (1) JP7841666B2 (https=)
CN (1) CN121420364A (https=)
WO (1) WO2025150243A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019220609A (ja) 2018-06-21 2019-12-26 太陽誘電株式会社 金属磁性粒子を含む磁性基体及び当該磁性基体を含む電子部品
JP2020145405A (ja) 2019-02-28 2020-09-10 太陽誘電株式会社 軟磁性合金粉及びその製造方法、並びに軟磁性合金粉から作られるコイル部品及びそれを載せた回路基板
JP2022007996A (ja) 2020-03-31 2022-01-13 太陽誘電株式会社 コイル部品
JP2022131486A (ja) 2021-02-26 2022-09-07 太陽誘電株式会社 コイル部品、回路基板、電子機器、及びコイル部品の製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019220609A (ja) 2018-06-21 2019-12-26 太陽誘電株式会社 金属磁性粒子を含む磁性基体及び当該磁性基体を含む電子部品
JP2020145405A (ja) 2019-02-28 2020-09-10 太陽誘電株式会社 軟磁性合金粉及びその製造方法、並びに軟磁性合金粉から作られるコイル部品及びそれを載せた回路基板
JP2022007996A (ja) 2020-03-31 2022-01-13 太陽誘電株式会社 コイル部品
JP2022131486A (ja) 2021-02-26 2022-09-07 太陽誘電株式会社 コイル部品、回路基板、電子機器、及びコイル部品の製造方法

Also Published As

Publication number Publication date
JPWO2025150243A1 (https=) 2025-07-17
CN121420364A (zh) 2026-01-27
WO2025150243A1 (ja) 2025-07-17

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