WO2014013896A1 - 積層コイル部品の製造方法 - Google Patents
積層コイル部品の製造方法 Download PDFInfo
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- WO2014013896A1 WO2014013896A1 PCT/JP2013/068536 JP2013068536W WO2014013896A1 WO 2014013896 A1 WO2014013896 A1 WO 2014013896A1 JP 2013068536 W JP2013068536 W JP 2013068536W WO 2014013896 A1 WO2014013896 A1 WO 2014013896A1
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000004020 conductor Substances 0.000 claims abstract description 76
- 239000000696 magnetic material Substances 0.000 claims abstract description 56
- 239000007769 metal material Substances 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 41
- 239000011521 glass Substances 0.000 claims abstract description 36
- 238000005520 cutting process Methods 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 238000010304 firing Methods 0.000 abstract description 11
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 229910000859 α-Fe Inorganic materials 0.000 description 11
- 239000000843 powder Substances 0.000 description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 7
- 239000012299 nitrogen atmosphere Substances 0.000 description 5
- 239000012298 atmosphere Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 238000007650 screen-printing Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910001004 magnetic alloy Inorganic materials 0.000 description 3
- -1 B 2 O 3 Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910008458 Si—Cr Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000002003 electrode paste Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007500 overflow downdraw method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 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
- 229910002796 Si–Al Inorganic materials 0.000 description 1
- 229910008423 Si—B Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010303 mechanochemical reaction Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Classifications
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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
-
- 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
- H01F17/0013—Printed inductances with stacked layers
-
- 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
- H01F17/0033—Printed inductances with the coil helically wound around a magnetic core
-
- 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
- H01F41/005—Impregnating or encapsulating
-
- 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
- H01F41/041—Printed circuit coils
- H01F41/043—Printed circuit coils by thick film techniques
-
- 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
- H01F41/041—Printed circuit coils
- H01F41/045—Trimming
-
- 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
- H01F41/041—Printed circuit coils
- H01F41/046—Printed circuit coils structurally combined with ferromagnetic material
Definitions
- the present invention relates to a method for manufacturing a multilayer coil component, and more particularly to a method for manufacturing a multilayer coil component such as a power inductor provided with a magnetic layer mainly composed of a magnetic metal material.
- Patent Document 1 discloses that a metal magnetic alloy powder containing Cr, Si, and Fe is made of glass having SiO 2 , B 2 O 3 , ZnO as main components and a softening temperature of 600 ⁇ 50 ° C. Add the volume so that the volume is less than 10% of the volume of the metal magnetic alloy powder, using the metal magnetic body coated with the glass surface of the metal magnetic alloy powder to form a molded body incorporating a coil, There has been proposed a method of manufacturing an electronic component in which the compact is fired at 700 ° C. or higher and below the melting point of the conductor material of the coil in a non-oxidizing atmosphere of vacuum or oxygen-free or low oxygen partial pressure.
- Patent Document 2 includes a component body (magnetic ferrite body) made of a magnetic ferrite material and an internal conductor embedded in the component body so as to form a coil.
- a chip ferrite component in which at least a part of a conductor is disposed so as to be exposed to the outside of a component body, and a portion exposed to the outside is covered with a nonmagnetic material.
- JP 2010-62424 A (Claim 1) JP 2001-44039 A (Claims 1 and 2)
- Patent Document 1 since the component body is formed of a metal-based magnetic material, the saturation magnetic flux density Bs is smaller than that of a chip ferrite component in which the component body is formed of a ferrite-based magnetic material as in Patent Document 2. It is considered that a laminated coil component having a high direct current superimposition characteristic with a small inductance change rate even when a large current is passed can be obtained.
- this type of laminated coil component is generally manufactured by a so-called multi-cavity method from the viewpoint of ensuring good productivity.
- the multi-cavity method is to produce an assembly of laminates to be a component body after firing using a lamination method or the like, and to cut the laminate block that is an assembly of the laminates vertically and horizontally.
- a large number of laminates are obtained from the laminate block.
- By firing this multilayer body a large number of component bodies can be obtained from one multilayer body block, and it is possible to produce multilayer coil components with high efficiency by forming external electrodes on the component body. It becomes.
- Patent Document 1 when the multilayer coil component is manufactured by using the multi-cavity method as described above, there are the following problems.
- Patent Document 1 since the metal magnetic body with a built-in coil is formed of a metal-based magnetic material whose surface is covered with a glass material, the metal magnetic body is damaged when the laminate block is cut, There is a possibility that the glass material covering the metal-based magnetic material is lost and the surface of the metal-based magnetic material is exposed. And since this metallic magnetic material is inferior in corrosion resistance, when the metallic magnetic material is exposed on the surface, the exposed part may corrode and rust may be generated, leading to deterioration of characteristics.
- the saturation magnetic flux density Bs is lower than that of the metal-based magnetic material, although the specific resistance is high and the eddy current loss is small even in the high-frequency region. , Easy to magnetic saturation.
- Patent Document 2 a part of the component body is exposed to the outside, and the exposed portion is covered with a nonmagnetic material to form an open magnetic circuit structure, thereby improving the DC superposition characteristics.
- Patent Document 2 cannot obtain a good direct current superposition characteristic like a metal-based magnetic material due to the material characteristics. It is difficult to obtain superposition characteristics.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a method of manufacturing a laminated coil component suitable for a power inductor with improved reliability without impairing the DC superposition characteristics.
- a method for manufacturing a laminated coil component according to the present invention includes a magnetic material containing at least a glass material so that conductor layers containing a conductive material are electrically connected to form a coil pattern.
- the dividing step divides the multilayer block so that at least a part of the conductor layer is exposed from the side surface of the multilayer body.
- the laminate block producing step includes a magnetic paste producing step of producing a magnetic paste mainly comprising a magnetic metal material containing at least a glass material, and the magnetic paste producing step.
- the magnetic paste is preferably applied to the side surface of the laminate.
- the magnetic paste preparation step includes a magnetic material preparation step in which a surface of the magnetic metal material is coated with the glass material to prepare a magnetic material, and the magnetic material preparation step. It is preferable to include a pasting step for pasting the body material.
- a magnetic metal material containing at least a glass material is a main component so that conductor layers containing a conductive material are electrically connected to form a coil pattern.
- the component body is mainly composed of a magnetic metal material
- the direct current superposition characteristics are better than when the component body is made of a ferrite-based material, and therefore the direct current superposition characteristics are good and the reliability is good. Therefore, it is possible to obtain a laminated coil component suitable for a power inductor having the characteristics.
- FIG. 1 It is a perspective view which shows one Embodiment of the laminated coil components manufactured with the manufacturing method which concerns on this invention. It is a schematic cross section of FIG. It is a perspective view which shows one Embodiment of a laminated body block. It is a disassembled perspective view of a laminated body. It is a perspective view of a laminated body. It is a perspective view of the laminated body in which the magnetic material application part was formed.
- FIG. 1 is a perspective view showing an embodiment of a laminated coil component according to the present invention
- FIG. 2 is a schematic sectional view of FIG.
- This multilayer coil component is composed of a component element body 1, a coil conductor 2 incorporated in the component element body 1, and external conductors 3a and 3b formed at both ends of the component element body 1.
- the coil conductor 2 has an internal conductor 4 (4a to 4o) formed so as to have a predetermined conductor pattern electrically connected in series via a via conductor (not shown). And wound in a coil shape.
- the lead portion 6 of the internal conductor 4o is electrically connected to one external electrode 3a
- the lead portion 7 of the internal conductor 4a is electrically connected to the other external electrode 3b. Yes.
- the component body 1 is formed on a magnetic body portion 8 containing a magnetic metal material as a main component and a glass material as a subcomponent, and a side portion of the magnetic body portion 8. And magnetic material applying portions 9a and 9b made of a magnetic material.
- the magnetic metal material is not particularly limited as long as it is a metal material having magnetism.
- Fe—Si series containing Si as a main component and containing Si Fe—Si—Cr containing Si and Cr.
- Various crystalline or amorphous magnetic metal materials such as Fe—Ni—containing Ni, Fe—Si—Al containing Si, and Al can be used.
- the glass material is not particularly limited, and various glass materials such as Si-B, Si-B-alkali metal, Si-B-Zn, and water glass can be used.
- the magnetic metal material and the glass material are mixed, and the surface of the magnetic metal material is coated with the glass material to produce a magnetic material.
- the method for coating the surface of the magnetic metal material with this glass material is not particularly limited, and the surface of the magnetic metal material can be coated with the glass material using, for example, a mechano-fusion method. That is, a magnetic metal material and a glass material are mixed and mechanical energy is applied to the mixture to cause a mechanochemical reaction, whereby the surface of the magnetic metal material can be coated with the glass material.
- the blending ratio of the magnetic metal material and the glass material may be such that the magnetic metal material forms the main component, and for example, the blending is performed so that the content of the magnetic metal material is 70 to 90% by weight.
- an additive such as an organic solvent, an organic binder, a dispersing agent and a plasticizer is added to the magnetic material and kneaded to prepare a magnetic paste.
- internal conductor paste a conductive paste for internal conductor (hereinafter referred to as “internal conductor paste”).
- FIG. 3 is a perspective view of the laminate block.
- the laminate block 10 is an assembly of laminates 11 and is produced on a base film (not shown) such as polyethylene terephthalate (PET) using a lamination method. And this laminated body block 10 is provided with the cutting lines 15 and 16 in the laminated body block 10 so that one laminated body 11 may form the one component body 1 after baking. And the laminated body block 10 is cut
- a base film not shown
- PET polyethylene terephthalate
- FIG. 4 is an exploded perspective view of the laminate 11.
- a magnetic paste is applied on a base film and dried, thereby producing magnetic sheets 12a and 12b.
- an inner conductor paste is applied to the surface of the magnetic sheet 12b by a screen printing method or the like and dried to form a conductor layer 13a having a predetermined pattern.
- a magnetic paste is applied onto the magnetic sheet 12b on which the conductor layer 13a is formed and dried, thereby producing the magnetic sheet 12c.
- an inner conductor paste is applied to the surface of the magnetic sheet 12c by a screen printing method or the like, and dried to form a conductor layer 13b having a predetermined pattern.
- the via hole 14a is formed so that the conductor layer 13b and the conductor layer 13a can be electrically connected.
- magnetic sheets 12d to 12q and conductor layers 13c to 13o are sequentially formed by using the magnetic paste and the internal conductor paste in the same manner and procedure.
- Via holes 14b to 14n are formed so that the conductive layers of the first and second conductive layers are conductive.
- a large number of laminates 11 are integrally formed in a matrix on the base film, and a laminate block 10 is formed.
- the laminated block 10 is cut along the cutting lines 15 and 16, and the laminated body 11 as shown in FIG. 5 is formed.
- the laminated body 11 to which this magnetic material has been applied is placed in a pod and heated at 300 to 500 ° C. in a nitrogen atmosphere.
- a binder removal treatment is performed at a temperature, and then a firing treatment is performed at a temperature of 900 to 1000 ° C. in a nitrogen atmosphere, whereby the component body 1 is obtained.
- FIG. 6 is a perspective view of the component body 1, and magnetic material applying portions 9 a and 9 b are formed on the side surface portion of the magnetic body main body portion 8.
- an external electrode paste mainly composed of Ag or the like is applied to both end portions of the component element body 1 and subjected to a baking treatment to form the external electrodes 3a and 3b, whereby a laminated coil component is formed.
- a magnetic metal material containing at least a glass material is a main component so that the conductor layers 13a to 13o containing a conductive material are electrically connected to form a coil pattern.
- the laminated body 11 is fired to produce the component body 1, and the glass material contained in the conductor layers 13a to 13o when the laminated body block 10 is divided in the dividing step. Damaged, even missing, since the magnetic material is applied to the side face of the stack 11, the component element assembly 1 after firing never magnetic metal material having poor corrosion resistance is exposed surfaces. That is, even when the glass material covering the surface of the magnetic metal material is damaged or lost during cutting in the dividing step, the magnetic metal material is covered with the magnetic material, so that rust is generated on the coil conductor 2. It can be avoided.
- the magnetic metal material is not exposed on the surface in this way, it is possible to obtain a laminated coil component that does not cause rusting due to contact of the conductor portion with the atmosphere and does not cause deterioration of characteristics. .
- the component body 1 is mainly composed of a magnetic metal material, the direct current superimposition characteristics are better than when the component body 1 is formed of a ferrite-based material, and thus the direct current superposition characteristics are good and good. It is possible to obtain a laminated coil component suitable for a power inductor having high reliability.
- the laminated block 10 is provided with the cutting lines 15 and 16 so that one laminated body 11 forms one component body 1 after firing, and is laminated along the cutting lines 15 and 16.
- the body block 10 is cut, it is also preferable to divide the laminate block 10 so that at least a part of the conductor layers 13 a to 13 o is exposed from the side surface of the laminate 11. In this case, at least a part of the conductor layers 13a to 13o is exposed from the side surface portion of the multilayer body 11.
- the magnetic material is applied to the side surface portion, rust does not occur and much more.
- a multilayer coil component suitable for a miniaturized power inductor can be obtained.
- an Fe—Si—Cr magnetic metal powder having an Fe: 92.0 wt%, Si: 3.5 wt%, Cr: 4.5 wt%, and an average particle diameter of 6 ⁇ m was prepared.
- the magnetic metal material and the glass material are mixed so that the magnetic metal powder is 88% by weight and the glass powder is 12% by weight, and the surface of the magnetic metal material is coated with the glass material using a mechano-fusion method. Thus, a magnetic material was produced.
- a magnetic paste is applied on the PET film and dried, and this is repeated a predetermined number of times to produce a magnetic sheet, and then the inner conductor paste is applied to the surface of the magnetic sheet using a screen printing method. And dried to form a conductor layer having a predetermined pattern.
- a magnetic paste was applied onto the magnetic sheet on which the conductor layer was formed and dried, thereby producing a magnetic sheet.
- a via hole was formed in a predetermined portion of the magnetic sheet.
- an inner conductor paste was applied to the surface of the magnetic sheet using a screen printing method and dried to form a conductor layer having a predetermined pattern. At this time, it was made to conduct with the conductor layer formed first through the via hole.
- a magnetic paste was applied to the side surface of the laminate and dried to obtain a laminate on which a magnetic material was applied.
- an external electrode paste mainly composed of Ag or the like is applied to both ends of the component element body using the dipping method, dried in a nitrogen atmosphere at a temperature of 100 ° C. for 10 minutes, and then at a temperature of 780 ° C.
- the baking process was performed for 15 minutes, the external electrode was formed, and the laminated coil component was produced by this (Example sample).
- a laminate block is manufactured by the same method and procedure as described above, and then the laminate block is cut and divided into laminates, and a magnetic paste is applied to the side surface of the laminate.
- the laminated coil part which made it by baking without performing this and made this into a component element body (comparative sample) was produced.
- Rust can be avoided on the outer surface, and DC superposition characteristics are good, even when a multi-layered coil component with a component body consisting mainly of a magnetic metal material is manufactured. And realizes highly reliable laminated coil parts.
- Coil conductor 10 Laminated body block 11 Laminated bodies 12a to 12q Magnetic sheet (magnetic layer) 13a to 13o Conductor layer
Abstract
Description
10 積層体ブロック
11 積層体
12a~12q 磁性体シート(磁性体層)
13a~13o 導体層
Claims (4)
- 導電性材料を含有した導体層同士が電気的に接続されてコイルパターンを形成するように、少なくともガラス材料を含有した磁性金属材料を主成分とする磁性体層と前記導体層とを交互に積層し、多数の積層体の集合体である積層体ブロックを作製する積層体ブロック作製工程と、
前記積層体ブロックを前記各積層体毎に切断し分割する分割工程と、
前記磁性金属材料を含む磁性材料を前記積層体の側面部に付与する磁性材料付与工程と、
前記磁性材料が付与された積層体を焼成し、部品素体を作製する焼成工程とを含むことを特徴とする積層コイル部品の製造方法。 - 前記分割工程は、前記導体層の少なくとも一部が前記積層体の側面部から表面露出するように前記積層体ブロックを分割することを特徴とする請求項1記載の積層コイル部品の製造方法。
- 前記積層体ブロック作製工程は、少なくともガラス材料を含有した磁性金属材料を主成分とする磁性体ペーストを作製する磁性体ペースト作製工程と、
前記磁性体ペーストに成形加工を施してシート状の磁性体層を作製する磁性体層作製工程と、
前記導電性材料を含有した導電性ペーストを前記磁性体層に塗布して所定の導体パターンを有する導体層を形成する導体層形成工程と、
前記導体層同士が電気的に接続されてコイルパターンを形成するように、前記導体層の形成された磁性体層を積層する積層工程とを含み、
前記磁性材料付与工程は、前記磁性体ペーストを前記積層体の側面部に塗布することを特徴とする請求項1又は請求項2記載の積層コイル部品の製造方法。 - 前記磁性体ペースト作製工程は、前記磁性金属材料の表面を前記ガラス材料で被覆して磁性体原料を作製する磁性体原料作製工程と、
前記磁性体原料をペースト化するペースト化工程とを含むことを特徴とする請求項3記載の積層コイル部品の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2014525786A JPWO2014013896A1 (ja) | 2012-07-20 | 2013-07-05 | 積層コイル部品の製造方法 |
CN201380025992.7A CN104380402A (zh) | 2012-07-20 | 2013-07-05 | 层叠线圈部件的制造方法 |
KR1020147031220A KR101606315B1 (ko) | 2012-07-20 | 2013-07-05 | 적층 코일 부품의 제조 방법 |
US14/503,787 US20150014899A1 (en) | 2012-07-20 | 2014-10-01 | Method for manufacturing laminated coil component |
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JP2012-161415 | 2012-07-20 | ||
JP2012161415 | 2012-07-20 |
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US14/503,787 Continuation US20150014899A1 (en) | 2012-07-20 | 2014-10-01 | Method for manufacturing laminated coil component |
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US (1) | US20150014899A1 (ja) |
JP (1) | JPWO2014013896A1 (ja) |
KR (1) | KR101606315B1 (ja) |
CN (1) | CN104380402A (ja) |
WO (1) | WO2014013896A1 (ja) |
Cited By (1)
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KR20200121867A (ko) | 2018-02-20 | 2020-10-26 | 도와 일렉트로닉스 가부시키가이샤 | 실리콘 산화물 피복 연자성 분말 및 이의 제조방법 |
Families Citing this family (3)
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CN106483483B (zh) * | 2015-08-27 | 2019-09-06 | 通用电气公司 | 梯度线圈及其制造方法 |
JP6828673B2 (ja) * | 2017-12-15 | 2021-02-10 | 株式会社村田製作所 | 積層型インダクタ部品及び積層型インダクタ部品の製造方法 |
JP2020141043A (ja) * | 2019-02-28 | 2020-09-03 | Tdk株式会社 | コイル部品 |
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- 2013-07-05 CN CN201380025992.7A patent/CN104380402A/zh active Pending
- 2013-07-05 KR KR1020147031220A patent/KR101606315B1/ko active IP Right Grant
- 2013-07-05 WO PCT/JP2013/068536 patent/WO2014013896A1/ja active Application Filing
- 2013-07-05 JP JP2014525786A patent/JPWO2014013896A1/ja active Pending
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KR20200121867A (ko) | 2018-02-20 | 2020-10-26 | 도와 일렉트로닉스 가부시키가이샤 | 실리콘 산화물 피복 연자성 분말 및 이의 제조방법 |
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Publication number | Publication date |
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CN104380402A (zh) | 2015-02-25 |
US20150014899A1 (en) | 2015-01-15 |
KR20140143449A (ko) | 2014-12-16 |
KR101606315B1 (ko) | 2016-03-24 |
JPWO2014013896A1 (ja) | 2016-06-30 |
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