# US 10,319,503 B2 · Electronic component

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- Number: US 10,319,503 B2
- Document ID: US10319503B2
- Status: Granted
- Kind: B2
- Application number: 15/375,487
- Filed: 2016-12-12
- Published: 2017-06-22
- Granted: 2019-06-11
- Earliest claimed: 2015-12-16
- Assignees: Murata Manufacturing Co., Ltd.
- Applicants: Murata Manufacturing Co., Ltd.
- Inventors: Yuya Ishida; Koji Sawai
- Web page: https://patentgrep.com/patent/US10319503B2

## CPC

- H01F 1/14791: {Fe-Si-Al based alloys, e.g. Sendust}
- C08G 77/04: Polysiloxanes
- C08K 3/08: Metals
- C09J 183/04: Polysiloxanes
- C23C 14/205: {by cathodic sputtering}
- H01C 7/10: voltage responsive, i.e. varistors
- H01F 1/14733: {in the form of particles}
- H01F 1/26: by macromolecular organic substances
- H01F 17/045: {with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core}
- H01F 27/255: made from particles (H01F27/26 takes precedence)
- H01F 27/2804: {Printed windings}
- H01F 27/2823: {Wires (H01F27/2866 takes precedence)}
- H01F 27/292: {Surface mounted devices}
- H10N 30/857: Macromolecular compositions
- C08G 77/045: {containing less than 25 silicon atoms}
- C08K 2003/0856: {Iron}
- H01C 1/148: the terminals embracing or surrounding the resistive element (H01C1/142 takes precedence)
- H01F 2017/048: {with encapsulating core, e.g. made of resin and magnetic powder}
- H01G 4/018: Dielectrics
- H01G 4/2325: {characterised by the material of the terminals}
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- 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 (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04)
- H01C: RESISTORS
- H10N: ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H01G: CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B3/00; capacitors having potential barriers H10D1/62, H10K10/10)

## Abstract

An electronic component according to an embodiment of the present disclosure includes a formed article containing a cyclic siloxane resin or a branched siloxane resin serving as a first binder, and an outer electrode on at least part of a surface of the formed article, the outer electrode containing an early transition metal and/or an alloy thereof.

## Claims

### Claim 1

An electronic component, comprising:
a formed article containing a first binder that contains a cyclic siloxane resin or a branched siloxane resin; and
an outer electrode on at least part of a surface of the formed article, the outer electrode containing an early transition metal and an alloy of the early transition metal,
wherein the cyclic siloxane resin comprises a compound represented by formula (1):
where in formula (1), n is an integer of about 1 or more and about 8 or less, one of R1 and R2 represents a reactive group containing an amino group, a vinyl group, an epoxy group, a hydroxy group, a phenolic group, an acryloyl group, an oxetanyl group, a methacryloyl group, a carboxy group, or a mercapto group, and the other represents hydrogen, an alkyl group having about 1 or more and about 6 or less carbon atoms, or a phenyl group, and
wherein the branched siloxane resin comprises a compound represented by formula (2):
where in formula (2), k is an integer of about 0 or more and about 8 or less, m is an integer of about 0 or more and about 4 or less, provided that k and m are not 0 at the same time, at least one of R3, R4, and R5 represents a reactive group selected from an amino group, a vinyl group, an epoxy group, a hydroxy group, a phenolic group, a methacryloyl group, an acryloyl group, an oxetanyl group, a carboxy group, and a mercapto group, the remainder of R3, R4, and R5 each represent hydrogen, an alkyl group having about 1 or more and about 6 or less carbon atoms, or a phenyl group, at least one of X and Y has a structure represented by formula (3) or (4), the other represents hydrogen, an alkyl group having about 1 or more and about 6 or less carbon atoms, or a phenyl group,
where in formula (3), x is about 0 or an integer of about 1 or more and about 8 or less, at least one of R3, R4, and R5 represents a reactive group selected from an amino group, a vinyl group, an epoxy group, a hydroxy group, a phenolic group, a methacryloyl group, an acryloyl group, an oxetanyl group, a carboxy group and a mercapto group, and the remainder of R3, R4, and R5 each represent hydrogen, an alkyl group having about 1 or more and about 6 or less carbon atoms, or a phenyl group, and
where in formula (4), y is an integer of about 1 or more and about 12 or less, z is an integer of about 1 or more and about 8 or less, at least one of R3, R4, and R5 represents a reactive group selected from an amino group, a vinyl group, an epoxy group, a hydroxy group, a phenolic group, a methacryloyl group, an acryloyl group, an oxetanyl group, a carboxy group, and a mercapto group, and the remainder of R3, R4, and R5 each represent hydrogen, an alkyl group having about 1 or more and about 6 or less carbon atoms, or a phenyl group.

### Claim 2 (depends on 1)

The electronic component according to claim 1, wherein the formed article contains about 1% by weight or more and about 8% by weight or less of the first binder.

### Claim 3 (depends on 1)

The electronic component according to claim 1, wherein the formed article contains a second binder that is at least one selected from the group consisting of epoxy resins, phenolic resins, unsaturated polyester resins, silicone resins, polyimide resins, polyamide resins, polyurethane resins, polybutylene terephthalate resins, polyphenylene sulfide resins, polyphenylene ether resins, polyether ketone resins, and liquid-crystal polyester resins.

### Claim 4 (depends on 3)

The electronic component according to claim 3, wherein the formed article contains about 1% by weight or more and about 8% by weight or less of the first binder and the second binder in total, and
wherein the ratio by weight of the first binder to the second binder is about 1 or more to about 99 or less.

### Claim 5 (depends on 1)

The electronic component according to claim 1, wherein the formed article contains an Fe-based soft magnetic powder.

### Claim 6 (depends on 1)

The electronic component according to claim 1, wherein the electronic component including the outer electrode is a coil component.

### Claim 7

An electronic component, comprising:
a formed article containing a first binder that contains a cyclic siloxane resin or a branched siloxane resin; and
an outer electrode on at least part of a surface of the formed article, the outer electrode containing at least one of an early transition metal and an alloy of the early transition metal,
wherein the cyclic siloxane resin comprises a compound represented by formula (1):
where in formula (1), n is an integer of about 1 or more and about 8 or less, one of R1 and R2 represents a reactive group containing an amino group, a vinyl group, an epoxy group, a hydroxy group, a phenolic group, an acryloyl group, an oxetanyl group, a methacryloyl group, a carboxy group, or a mercapto group, and the other represents hydrogen, an alkyl group having about 1 or more and about 6 or less carbon atoms, or a phenyl group.

### Claim 8

An electronic component, comprising:
a formed article containing a first binder that contains a cyclic siloxane resin or a branched siloxane resin; and
an outer electrode on at least part of a surface of the formed article, the outer electrode containing at least one of an early transition metal and an alloy of the early transition metal,
wherein the branched siloxane resin comprises a compound represented by formula (2):
where in formula (2), k is an integer of about 0 or more and about 8 or less, m is an integer of about 0 or more and about 4 or less, provided that k and m are not 0 at the same time, at least one of R3, R4, and R5 represents a reactive group selected from an amino group, a vinyl group, an epoxy group, a hydroxy group, a phenolic group, a methacryloyl group, an acryloyl group, an oxetanyl group, a carboxy group, and a mercapto group, the remainder of R3, R4, and R5 each represent hydrogen, an alkyl group having about 1 or more and about 6 or less carbon atoms, or a phenyl group, at least one of X and Y has a structure represented by formula (3) or (4), the other represents hydrogen, an alkyl group having about 1 or more and about 6 or less carbon atoms, or a phenyl group,
where in formula (3), x is about 0 or an integer of about 1 or more and about 8 or less, at least one of R3, R4, and R5 represents a reactive group selected from an amino group, a vinyl group, an epoxy group, a hydroxy group, a phenolic group, a methacryloyl group, an acryloyl group, an oxetanyl group, a carboxy group and a mercapto group, and the remainder of R3, R4, and R5 each represent hydrogen, an alkyl group having about 1 or more and about 6 or less carbon atoms, or a phenyl group, and
where in formula (4), y is an integer of about 1 or more and about 12 or less, z is an integer of about 1 or more and about 8 or less, at least one of R3, R4, and R5 represents a reactive group selected from an amino group, a vinyl group, an epoxy group, a hydroxy group, a phenolic group, a methacryloyl group, an acryloyl group, an oxetanyl group, a carboxy group, and a mercapto group, and the remainder of R3, R4, and R5 each represent hydrogen, an alkyl group having about 1 or more and about 6 or less carbon atoms, or a phenyl group.