JP2017112218A - 電子部品 - Google Patents
電子部品 Download PDFInfo
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- JP2017112218A JP2017112218A JP2015245466A JP2015245466A JP2017112218A JP 2017112218 A JP2017112218 A JP 2017112218A JP 2015245466 A JP2015245466 A JP 2015245466A JP 2015245466 A JP2015245466 A JP 2015245466A JP 2017112218 A JP2017112218 A JP 2017112218A
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- 239000011230 binding agent Substances 0.000 claims abstract description 72
- -1 cyclic siloxane Chemical class 0.000 claims abstract description 51
- 229920005989 resin Polymers 0.000 claims abstract description 50
- 239000011347 resin Substances 0.000 claims abstract description 50
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 14
- 150000003624 transition metals Chemical class 0.000 claims abstract description 14
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- 125000003700 epoxy group Chemical group 0.000 claims description 37
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 18
- 125000000217 alkyl group Chemical group 0.000 claims description 16
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 16
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 15
- 229910052739 hydrogen Inorganic materials 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 14
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 13
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 13
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- 239000006247 magnetic powder Substances 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
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- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001643 poly(ether ketone) Polymers 0.000 claims description 3
- 229920006122 polyamide resin Polymers 0.000 claims description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000009719 polyimide resin Substances 0.000 claims description 3
- 229920001955 polyphenylene ether Polymers 0.000 claims description 3
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- 229910052715 tantalum Inorganic materials 0.000 claims description 3
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- DDJSWKLBKSLAAZ-UHFFFAOYSA-N cyclotetrasiloxane Chemical class O1[SiH2]O[SiH2]O[SiH2]O[SiH2]1 DDJSWKLBKSLAAZ-UHFFFAOYSA-N 0.000 description 5
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- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 4
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- SHKUUQIDMUMQQK-UHFFFAOYSA-N 2-[4-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COCCCCOCC1CO1 SHKUUQIDMUMQQK-UHFFFAOYSA-N 0.000 description 2
- RBHIUNHSNSQJNG-UHFFFAOYSA-N 6-methyl-3-(2-methyloxiran-2-yl)-7-oxabicyclo[4.1.0]heptane Chemical compound C1CC2(C)OC2CC1C1(C)CO1 RBHIUNHSNSQJNG-UHFFFAOYSA-N 0.000 description 2
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- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 2
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- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
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- WSPOQKCOERDWJQ-UHFFFAOYSA-N 2-methyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane Chemical compound C[SiH]1O[SiH2]O[SiH2]O[SiH2]O1 WSPOQKCOERDWJQ-UHFFFAOYSA-N 0.000 description 1
- GXDHCNNESPLIKD-UHFFFAOYSA-N 2-methylhexane Natural products CCCCC(C)C GXDHCNNESPLIKD-UHFFFAOYSA-N 0.000 description 1
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- AEXMKKGTQYQZCS-UHFFFAOYSA-N 3,3-dimethylpentane Chemical compound CCC(C)(C)CC AEXMKKGTQYQZCS-UHFFFAOYSA-N 0.000 description 1
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- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
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- FGPCETMNRYMFJR-UHFFFAOYSA-L [7,7-dimethyloctanoyloxy(dimethyl)stannyl] 7,7-dimethyloctanoate Chemical compound CC(C)(C)CCCCCC(=O)O[Sn](C)(C)OC(=O)CCCCCC(C)(C)C FGPCETMNRYMFJR-UHFFFAOYSA-L 0.000 description 1
- GVKORIDPEBYOFR-UHFFFAOYSA-K [butyl-bis(2-ethylhexanoyloxy)stannyl] 2-ethylhexanoate Chemical compound CCCCC(CC)C(=O)O[Sn](CCCC)(OC(=O)C(CC)CCCC)OC(=O)C(CC)CCCC GVKORIDPEBYOFR-UHFFFAOYSA-K 0.000 description 1
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- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
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- JJRDHFIVAPVZJN-UHFFFAOYSA-N cyclotrisiloxane Chemical class O1[SiH2]O[SiH2]O[SiH2]1 JJRDHFIVAPVZJN-UHFFFAOYSA-N 0.000 description 1
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- 239000003989 dielectric material Substances 0.000 description 1
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- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
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- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
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- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
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- 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
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
- H01F1/14791—Fe-Si-Al based alloys, e.g. Sendust
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/02—Elements
- C08K3/08—Metals
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/20—Metallic material, boron or silicon on organic substrates
- C23C14/205—Metallic material, boron or silicon on organic substrates by cathodic sputtering
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- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
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- 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
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- H01F1/14733—Fe-Ni based alloys in the form of particles
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- 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
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- 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
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- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/255—Magnetic cores made from particles
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- 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
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- 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
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- 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
- H10N30/857—Macromolecular compositions
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/045—Polysiloxanes containing less than 25 silicon atoms
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Abstract
【解決手段】本発明の電子部品は、環状シロキサン樹脂または分岐状シロキサン樹脂を第1の結着剤として含む成形体と、該成形体の表面の少なくとも一部に形成された、早期遷移金属および/またはその合金を含む外部電極と、を有する。
【選択図】図1
Description
環状シロキサン樹脂は、以下の式(1)で表される化合物から形成することができる。
(式(1)中、nは1以上8以下の整数、R1とR2は、少なくとも一方が、アミノ基、ビニル基、エポキシ基、水酸基、フェノール基、アクリロイル基、メタクリロイル基、オキセタニル基、カルボキシル基またはメルカプト基である反応性基であり、他方が水素、炭素数1以上6以下のアルキル基またはフェニル基を示す。)
(式(2)中、kとmは、同時に0となることはない整数であって、kは0以上8以下、mは0以上4以下であり、R3、R4およびR5は、少なくとも1つがアミノ基、ビニル基、エポキシ基、水酸基、フェノール基、アクリロイル基、メタクリロイル基、オキセタニル基、カルボキシル基またはメルカプト基である反応性基であり、残部が水素、炭素数1以上6以下のアルキル基またはフェニル基を示し、XおよびYの少なくとも一方は、以下の式(3)または式(4)で表される構造を有し、他方は水素、炭素数1以上6以下のアルキル基またはフェニル基を示す。)
(式(3)中、xは0または1以上8以下の整数、R3、R4およびR5は、少なくとも1つがアミノ基、ビニル基、エポキシ基、水酸基、フェノール基、アクリロイル基、メタクリロイル基、オキセタニル基、カルボキシル基またはメルカプト基である反応性基であり、残部が水素、炭素数1以上6以下のアルキル基またはフェニル基を示す。)
つまり、電子部品がコイル部品である場合、電子部品は、コイルと、第1の結着材と軟磁性材料の粉末を含むコアと、コアの表面に形成されコイルと導通する外部電極と、を備える。外部電極は、早期遷移金属の膜である。つまり、外部電極は、酸素親和性の高い金属の膜である。外部電極は、好ましくは、Cr膜、V膜、Ti膜,Crを含む合金膜、Vを含む合金膜、Tiを含む合金膜から選ばれる一種の金属膜であってよい。コアは、第1の結着材に加えて上記第2の結着材を含んでいてもよい。コイルは、コイル状に巻かれた金属線であってもよく、ペーストから形成されたコイル状の導体であってもよく、金属膜をエッチングすることによってコイル状にパターン化された導体であってもよい。
(試験体作製)
本実施例では、第1の結着剤にSi−Oの繰り返し数が4である環状シロキサン樹脂を用いた。環状シロキサン樹脂は、式(1)で表されn=2である環状シロキサン(信越化学工業社製のX−40−2670)を用いて形成した。具体的には、磁性粉末FeSiCrを、環状シロキサンと混合し、得られた混合物を金型を用いて、縦×横×高さが、3mm×3mm×1mmである直方体形状に成形した。そして、成形された混合物を200℃で1時間加熱して環状シロキサンを硬化させることにより、成形体を形成した。その後、硬化させた成形体の底面に2箇所、Cr合金(組成NiCr)からなる金属膜をスパッタリング法により形成して外部電極とした。図2に試験体の底面図を示す。試験体10の底面の両端に幅が0.9mmの金属膜11,12を形成した。なお、成形体中の環状シロキサン樹脂の含有量は、3重量%である。
アドバンテスト製のR8340A ULTRA HIGH RESISTANCE METERを用い、室温で試験体に10Vの電圧を5秒間印加することで、試験体の比抵抗(Ω・cm)を測定した。結果を表1に示す。
試験体をはんだペーストを用いて実装用基板に実装し、AEC−Q200の測定方法に準拠して、試験体と実装用基板との間の接続強度(N)を測定した。結果を表1に示す。
第2の結着剤として、エポキシ樹脂を用い、第1の結着剤と第2の結着剤の重量比は、1:99とした以外は、実施例1の場合と同様の方法により試験体を作製した。結果を表1に示す。なお、第1の結着剤と第2の結着剤を合わせた含有量は、実施例1の場合と同様に、3重量%とした。
第1の結着剤と第2の結着剤の重量比を、5:95とした以外は、実施例2の場合と同様の方法により試験体を作製した。結果を表1に示す。
第1の結着剤と第2の結着剤の重量比を、10:90とした以外は、実施例2の場合と同様の方法により試験体を作製した。結果を表1に示す。
第1の結着剤と第2の結着剤の重量比を、15:85とした以外は、実施例2の場合と同様の方法により試験体を作製した。結果を表1に示す。
第1の結着剤と第2の結着剤の重量比を、20:80とした以外は、実施例2の場合と同様の方法により試験体を作製した。結果を表1に示す。
第1の結着剤と第2の結着剤の重量比を、25:75とした以外は、実施例2の場合と同様の方法により試験体を作製した。結果を表1に示す。
第1の結着剤に、Si−Oの繰り返し数が5である環状シロキサン樹脂を用いた。つまり、環状シロキサン樹脂は、式(1)で表されn=3である環状シロキサンを用いた以外は、実施例1の場合と同様の方法により試験体を作製した。結果を表1に示す。
第1の結着剤に、3つのSi−O−Si結合で構成される分岐状シロキサン構造を有する分岐状シロキサン樹脂を用いた。つまり、式(2)で表される分岐状シロキサンを用いた以外は、実施例1の場合と同様の方法により試験体を作製した。結果を表1に示す。
第1の結着剤に、Si−Oの繰り返し数が6である環状シロキサン樹脂を用いた。つまり、環状シロキサン樹脂は、式(1)で表されn=4である式(1)で表される環状シロキサンを用いた以外は、実施例1の場合と同様の方法により試験体を作製した。結果を表1に示す。
第1の結着剤に、4つのSi−O−Si結合で構成される分岐状シロキサン構造を有する分岐状シロキサン樹脂を用いた。つまり、式(2)で表されXおよびYが式(3)で表される分岐状シロキサンを用いた以外は、実施例1の場合と同様の方法により試験体を作製した。結果を表1に示す。
外部電極として、Cr合金膜に代えてTi合金膜(組成NiTi)を用いた以外は、実施例1の場合と同様の方法により試験体を作製した。結果を表1に示す。
実施例1の第1の結着剤に替えてエポキシ樹脂を用いた以外は、実施例1の場合と同様の方法により試験体を作製した。結果を表1に示す。
第1の結着剤として、直鎖状のシロキサン樹脂(東レダウコーニングシリコン社製 SR2414LV)を用いた以外は、実施例1の場合と同様の方法により試験体を作製した。結果を表1に示す。
表1に示すように、比較例1と比較例2の接続強度は、それぞれ40Nと45Nであった。これに対し、実施例1〜12では、1013オーダーの高い比抵抗を維持しながら、200Nを超える非常に高い接続強度を得ることができた。
1A 巻芯部
1B 鍔部
2 巻線
3 外部電極
4 樹脂磁性部
10 試験体
11,12 金属膜
Claims (9)
- 環状シロキサン樹脂あるいは分岐状シロキサン樹脂を第1の結着剤を含む成形体と、
該成形体の表面の少なくとも一部に形成された、早期遷移金属および/またはその合金を含む外部電極と、を有する電子部品。 - 分岐状シロキサン樹脂は以下の式(2)で表される化合物から形成される、請求項1に記載の電子部品。
(式(2)中、kとmは、同時に0となることはない整数であって、kは0以上8以下、mは0以上4以下であり、R3、R4およびR5は、少なくとも1つがアミノ基、ビニル基、エポキシ基、水酸基、フェノール基、メタクリロイル基、アクリロイル基、オキセタニル基、カルボキシル基またはメルカプト基である反応性基、残部が水素、炭素数1以上6以下のアルキル基またはフェニル基であり、XおよびYの少なくとも一方は、以下の式(3)または式(4)で表される構造を有し、他方は水素、炭素数1以上6以下のアルキル基またはフェニル基を示す。)
(式(3)中、xは0または1以上8以下の整数、R3、R4およびR5は、少なくとも1つがアミノ基、ビニル基、エポキシ基、水酸基、フェノール基、メタクリロイル基、アクリロイル基、オキセタニル基、カルボキシル基またはメルカプト基である反応性基であり、残部が水素、炭素数1以上6以下のアルキル基またはフェニル基を示す。)
- 前記早期遷移金属が、Sc、Ti、V、Cr、Mn、Y、Zr、Nb、Mo、Tc、Hf、Ta、W、およびReからなる群から選択される1種である、請求項1〜3のいずれか一項に記載の電子部品。
- 前記第1の結着剤が、前記成形体中に1重量%以上8重量%以下含まれる請求項1〜4のいずれか一項に記載の電子部品。
- 前記成形体が、エポキシ樹脂、フェノール樹脂、不飽和ポリエステル樹脂、シリコーン樹脂、ポリイミド樹脂、ポリアミド樹脂、ポリウレタン樹脂、ポリブチレンテレフタレート樹脂、ポリフェニレンスルフィド樹脂、ポリフェニレンエーテル樹脂、ポリエーテルケトン樹脂、液晶ポリエステル樹脂からなる群から選択される少なくとも1種の第2の結着剤を含む、請求項1〜5のいずれか一項に記載の電子部品。
- 前記第1の結着剤および前記第2の結着剤が、合わせて前記成形体中に1重量%以上8重量%以下含まれ、前記第1の結着剤と前記第2の結着剤の重量比が、1:99以下である、請求項5又は6に記載の電子部品。
- 前記成形体が、Fe系軟磁性粉を含む、請求項1〜7のいずれか一項に記載の電子部品。
- 前記の外部電極を有する電子部品がコイル部品である、請求項1〜6のいずれか一項に記載の電子部品。
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JP2022125219A (ja) * | 2018-05-31 | 2022-08-26 | 昭和電工マテリアルズ株式会社 | コンパウンド及び成形体 |
KR102587422B1 (ko) * | 2018-05-31 | 2023-10-10 | 가부시끼가이샤 레조낙 | 컴파운드 및 성형체 |
CN112166154B (zh) * | 2018-05-31 | 2024-02-20 | 株式会社力森诺科 | 复合物及成形体 |
WO2019229961A1 (ja) * | 2018-05-31 | 2019-12-05 | 日立化成株式会社 | コンパウンド、成形体、及び電子部品 |
JP2021158148A (ja) * | 2020-03-25 | 2021-10-07 | パナソニックIpマネジメント株式会社 | 圧粉磁心 |
KR20220120876A (ko) * | 2021-02-24 | 2022-08-31 | 동우 화인켐 주식회사 | 경화성 조성물, 경화막 및 표시 장치 |
KR102465983B1 (ko) | 2021-02-24 | 2022-11-09 | 동우 화인켐 주식회사 | 경화성 조성물, 경화막 및 표시 장치 |
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