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WO2019013567A1 - Contacteur fonctionnel - Google Patents

Contacteur fonctionnel Download PDF

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Publication number
WO2019013567A1
WO2019013567A1 PCT/KR2018/007908 KR2018007908W WO2019013567A1 WO 2019013567 A1 WO2019013567 A1 WO 2019013567A1 KR 2018007908 W KR2018007908 W KR 2018007908W WO 2019013567 A1 WO2019013567 A1 WO 2019013567A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
conductor
functional device
functional
conductive vias
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.)
Ceased
Application number
PCT/KR2018/007908
Other languages
English (en)
Korean (ko)
Inventor
임병국
공동훈
문지우
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.)
Amotech Co Ltd
Original Assignee
Amotech 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 Amotech Co Ltd filed Critical Amotech Co Ltd
Publication of WO2019013567A1 publication Critical patent/WO2019013567A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2428—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using meander springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0067—Devices for protecting against damage from electrostatic discharge

Definitions

  • the present invention relates to a contactor for an electronic device such as a smart phone, and more particularly to a functional contactor capable of improving the bonding strength of a contactor stacked by soldering on a functional device.
  • Such a portable electronic device alleviates an external impact and at the same time reduces electromagnetic waves leaking from or leaking into the portable electronic device and is also excellent in electrical conductivity such as a conductive gasket or a conductive contactor for electrical contact between an antenna disposed in an external housing and an internal circuit board
  • the elastic part is used.
  • a functional element for protecting the user from such static electricity or leakage current is provided together with a conductive gasket or a conductive contactor for connecting the metal housing and the circuit board,
  • a functional contactor having various functions for protecting a circuit in a portable electronic device or for smoothly transmitting a communication signal.
  • such a functional contactor laminates the conductive elastic part to the electrode of the functional device by soldering, wherein the junction strength between the electrode and the body of the functional device decreases toward the outer periphery of the conductive elastic part.
  • the electrode of the functional device has a large area, when an impact due to external contact is applied, a large number of defective products occur due to breakage or peeling of the electrode adjacent to the conductive elastic part relatively.
  • the present invention provides an electronic device comprising: a conductor having elasticity to be brought into contact with a conductor of an electronic device; A functional element connected to the elastic conductor and having a first electrode and a second electrode on at least a part of an upper surface and a lower surface, respectively; And a solder connecting the lower surface of the conductor having elasticity and the first electrode of the functional device.
  • the functional device includes a plurality of conductive vias extending from the first electrode and the second electrode.
  • the plurality of conductive vias may be arranged vertically symmetrically on the upper surface and the lower surface of the functional device.
  • the plurality of conductive vias may be arranged at equal intervals with respect to any one of a first direction and a second direction perpendicular to the first direction.
  • the plurality of conductive vias may be arranged at equal intervals in the first direction and the second direction.
  • the plurality of conductive vias may be arranged at different intervals from each other with respect to the first direction and the second direction perpendicular to the first direction.
  • the first electrode and the second electrode may be provided on the upper surface and the lower surface of the functional device.
  • the elastic conductor includes: a clip-shaped contact portion which contacts the conductor of the electronic device; A bending portion having a predetermined curvature to impart an elastic force; And a terminal portion contacting the first electrode of the functional device.
  • the elastic conductor may further include a side wall extending vertically from the terminal portion at a long side.
  • the side wall may extend to at least a part of the short side where the bent portion is not formed.
  • the bent portion may extend from the terminal portion.
  • the bent portion may be spaced apart from the terminal portion by a predetermined distance.
  • the functional device may include an electric shock prevention function for blocking a leakage current of an external power source flowing from the ground of the circuit board of the electronic device, a communication signal transfer function for passing a communication signal flowing into the conductive case or from the circuit board, And an ESD protection function for passing the static electricity from the conductive case by discharging.
  • the present invention by providing a plurality of conductive vias connected to the upper and lower electrodes of a large area in the body of the functional device, it is possible to increase the area where the electrodes and the body of the functional device are joined, The strength can be increased, and therefore, the phenomenon that the electrode of the functional device is peeled or broken from the body can be prevented, and the reliability of the product can be improved.
  • FIG. 1 is a perspective view of a functional contactor according to an embodiment of the present invention
  • Fig. 2 is a sectional view of Fig. 1,
  • Figure 3 is a top view of the functional device in Figure 1,
  • FIG. 4 is a plan view showing another example of the conductive via in the functional contactor according to the embodiment of the present invention.
  • FIG. 5 is a perspective view showing another example of a conductor having elasticity in a functional contactor according to an embodiment of the present invention.
  • the functional contactor 100 includes a conductor 110 having an elasticity, a functional device 120, and a solder 130, as shown in FIGS.
  • Such a functional contactor 100 is for electrically connecting a conductive case such as an external metal case to a circuit board or a conductive bracket electrically coupled to a circuit board on one side in a portable electronic device.
  • the functional contactor 100 may be configured such that the elastic conductor 110 contacts the circuit board or the conductive bracket, and the functional element 120 can be coupled to the conductive case, And the functional device 120 may be coupled to the circuit board.
  • the functional contactor 100 is of the SMT type, i.e., is coupled through soldering
  • the functional element 120 is coupled to the circuit board, and if it is an adhesive layer type, ,
  • the functional device 120 may be coupled to the conductive case.
  • the portable electronic device may be a portable terminal such as a smart phone, a cellular phone, and the like, and may be a smart watch, a digital camera, a DMB, an electronic book, a netbook, a tablet PC,
  • Such electronic devices may comprise any suitable electronic components including antenna structures for communication with external devices.
  • the conductive case may be an antenna for communication between the portable electronic device and an external device.
  • Such a conductive case may be provided, for example, to partially surround or partially surround the sides of the portable electronic device.
  • the resilient conductor 110 is in electrical contact with the conductor of the electronic device and has an elastic force.
  • the resilient conductor 110 may be in electrical contact with a circuit board of the electronic device, a bracket coupled to the circuit board, and a human contactable conductor, such as a case.
  • the conductor 110 having elasticity when the conductor 110 having elasticity contacts the conductor, the conductor 110 having elasticity can be contracted toward the functional device 120 by the pressing force, and when the conductor is separated, Can be restored to its original state.
  • One side of the conductor 110 having such elasticity is in contact with the conductor of the electronic device and the other side thereof is electrically connected to the functional device 120 and the lower side thereof is formed of the long side 115a and the short side 115b. That is, the conductor 110 having elasticity may be a rectangle whose bottom surface is longer than one side of the length of one side.
  • the functional device 120 is electrically connected in series to the elastic conductor 110, and the first electrode 121 and the second electrode 122 are provided on at least a part of the upper surface and the lower surface, respectively.
  • the first electrode 121 and the second electrode 122 may be provided on a top surface and a bottom surface of the functional device 120, respectively. That is, the body 120a of the functional device 120 may protrude from the first electrode 121 and the second electrode 122 to the outside.
  • the first electrode 121 and the second electrode 122 may be formed to have a large area in order to increase the capacity of the capacitance. That is, the first electrode 121 and the second electrode 122 may be formed over the entire upper surface and the lower surface of the functional device 120.
  • the first electrode 121 may be laminated with a conductor 110 having elasticity, and the second electrode 122 may be coupled to a circuit board through soldering or may be coupled to a conductor such as a conductive case by a conductive adhesive layer .
  • the solder 130 is used to connect the elastic conductive conductor 110 and the functional device 120 to connect the lower surface of the elastic conductive conductor 110 and the first electrode 121 of the functional device 120 do.
  • the solder 130 may be formed by applying a solder paste to the first electrode 121, placing the resilient conductor 110 on the solder paste in the soldering process, and then heating the melted solder paste, The lower electrode 110 and the first electrode 121 of the functional device 120 are bonded to each other so that the functional device 120 and the conductor 110 having elasticity can be coupled to each other.
  • the bonding strength of the first electrode 121 and the second electrode 122 of the functional device 120 to the body 120a decreases toward the outer periphery. That is, the bonding strength of the first electrode 121 and the second electrode 122 to the body 120a is the smallest at the rims thereof.
  • the impact is transmitted to the first electrode 121 of the functional device 120 coupled with the elastic conductor 110 or the body 120a Since the impact is transmitted to the second electrode 122 via the first electrode 121 or the second electrode 122, the bonding state of the body 120a with the first electrode 121 or the second electrode 122 may be adversely affected.
  • the first electrode 121 Since the first electrode 121 has a larger area than the lower surface of the elastic conductor 110, the first electrode 121 may be broken at the periphery of the conductor 110 having elasticity at the time of external impact, The conductive member 110 having elasticity and the functional device 120 are separated from each other.
  • the functional contactor 100 includes a plurality of conductive vias 124 and 125 in which the functional device 120 extends from the first electrode 121 and the second electrode 122 It is possible to prevent breakage or peeling of the first electrode 121 and the second electrode 122.
  • the conductive vias 124 and 125 are formed by forming the first electrode 121 and the second electrode 122 on the body 120a and then forming the conductive vias 124 and 125 on the body 120a from the first electrode 121 and the second electrode 122,
  • the groove may be formed, and the formed groove may be filled with a conductive material.
  • the conductive vias 124 and 125 may be formed of the same metal material as the first electrode 121 and the second electrode 122.
  • the conductive vias 124 and 125 are integrally formed with the first electrode 121 and the second electrode 122 so that the junction area between the first electrode 121 and the second electrode 122 and the body 120a is Not only the upper surface and the lower surface of the functional device 120 but also the direction perpendicular to the direction in which the first electrode 121 or the second electrode 122 is peeled from both sides in the body 120a It is possible to prevent breakage or peeling of the first electrode 121 or the second electrode 122 even when an external impact is applied to the functional contactor 100.
  • the plurality of conductive vias 124 and 125 may be arranged vertically symmetrically on the upper surface and the lower surface of the functional device 120 (see FIG. 2). That is, the conductive vias 124 provided in the first electrode 121 of the functional device 120 and the conductive vias 125 provided in the second electrode 122 may be provided at corresponding positions in the vertical direction.
  • the first electrode 121 and the second electrode 122 provide a uniform supporting force in the vertical direction by the first electrode 121 and the second electrode 122 on the upper surface and the lower surface of the functional device 120, respectively, The bonding strength between the electrode 122 and the body 120a can be further increased.
  • the plurality of conductive vias 124 and 125 may provide a uniform supporting force even in the horizontal direction.
  • the plurality of conductive vias 124 and 125 may be equally spaced with respect to any one of the first direction (a) and the second direction (b) perpendicular to the first direction (a). That is, the plurality of conductive vias 124 and 125 may be regularly arranged at regular intervals with respect to at least one of the first direction a and the second direction b on the upper surface and the lower surface of the functional device 120 .
  • the plurality of conductive vias 124 and 125 may be arranged at regular intervals with respect to the first direction a and the second direction b, respectively (see FIG. 3). That is, the plurality of conductive vias 124 and 125 may be regularly arranged at equal intervals in both the first direction (a) and the second direction (b) on the upper and lower surfaces of the functional device 120.
  • This provides a uniform supporting force in at least one of the horizontal directions (a, b) by the first electrode 121 and the second electrode 122 on the upper surface and the lower surface of the functional device 120, respectively,
  • the bonding strength between the first electrode 121 and the second electrode 122 and the body 120a can be further increased.
  • the plurality of conductive vias 224, 224a may be arranged at different intervals from one another in the conductive vias 224, 224a adjacent to each other in the first direction a and the second direction b (see Fig. 4). That is, the plurality of conductive vias 224 and 224a may be formed on the upper surface and the lower surface of the functional element 120 at a different interval from the conductive vias 224 and 224a adjacent to each other in both the first direction a and the second direction b It can be arranged irregularly.
  • the outermost conductive via 224a disposed in the vicinity of the edge of the first electrode 121 may be disposed at a predetermined position. That is, the outermost conductive vias 224a may be arranged at equal intervals in the first direction (a) and the second direction (b).
  • the plurality of conductive vias 224 and 224a are concentrated on the outer periphery of the first electrode 121 and the second electrode 122, which may cause breakage or peeling of the first electrode 121 and the second electrode 122,
  • the bonding strength between the first electrode 121 and the second electrode 122 and the body 120a can be further increased on the top and bottom surfaces of the functional device 120 during an external impact.
  • the elastic conductor 110 may include a contact portion 111, a bent portion 112, a side wall 114, and a terminal portion 115 (see FIGS. 1 and 2).
  • the conductor 110 having elasticity may be a C-clip having a roughly " C-shaped " shape. Since the conductor 110 having such elasticity is in line contact or point contact, galvanic corrosion resistance can be excellent.
  • the contact portion 111 has a clip-like curved shape and can be in electrical contact with the conductor of the electronic device.
  • the contact portion 111 may be disposed to protrude outward between the side walls 114.
  • the bent portion 112 extends from the contact portion 111 in a round shape and can have an elastic force. That is, the bent portion 112 may have a constant curvature to impart an elastic force.
  • the bent portion 112 may extend from the terminal portion 115. That is, the bent portion 112 may be disposed between the contact portion 111 and the terminal portion 115.
  • the bent portion 112 may be exposed to the outside of the side wall 114, and the exposed portion may include a first electrode 121 and a solder 130 on the lower side thereof so as to flow without being fixed, (See Fig. 2).
  • the side wall 114 extends vertically from the terminal portion 115 at the long side 115a. This side wall may extend to a portion 114a of the short side 115b where the bent portion 112 is not formed. That is, the side wall 114 is formed on both sides of the side wall 114 only at the short side 115b where the bent portion 112 is not formed, so that a space is formed between the portions 114a of the side wall 114 do. At this time, in the space between the portions 114a of the side wall 114, the contact portion 111 can flow due to the elastic force of the bent portion 112. [
  • the portion of the conductor 110 having elasticity can be minimized to the outside, so that it is possible to suppress the influence of external factors such as a hanging by the operator.
  • the terminal portion 115 corresponds to the lower surface of the elastic conductor 110 and may be formed to be connected to the lower side of the side wall 114.
  • the terminal portion 115 may be a terminal connected to the first electrode 121 of the functional device 120 by solder 130 and electrically connected to the functional device 120.
  • the contact portion 111, the bent portion 112, the side wall 114, and the terminal portion 115 may be integrally formed of a conductive material having an elastic force.
  • the functional device 120 may have a function for protecting a user or an internal circuit.
  • the functional device 120 may include at least one of an electric shock protection device, a varistor, a suppressor, a diode, and a capacitor.
  • the functional device 120 can block the leakage current of the external power source flowing into the conductor from the ground of the circuit board.
  • the functional device 120 may be configured such that the breakdown voltage Vbr or the breakdown voltage thereof is larger than the rated voltage of the external power supply of the electronic device.
  • the rated voltage may be a standard rated voltage for each country, for example, 240V, 110V, 220V, 120V, and 100V.
  • the first electrode 121 and the second electrode 122 provided on the upper surface and the lower surface of the functional device 120 function as a capacitor to block leakage current of the external power source And a communication signal flowing from the conductor or the circuit board can be passed.
  • the functional device 120 can pass the electrostatic discharge (ESD) flowing from the conductive case without being broken.
  • the functional device 120 may be configured such that the breakdown voltage Vbr thereof is smaller than the insulation breakdown voltage Vcp of the body 120a provided between the first electrode 121 and the second electrode 122 .
  • the functional contactor 100 electrically connects the conductive case and the circuit board with respect to a communication signal, an electrostatic discharge (ESD), etc., and passes the leakage current of the external power from the circuit board to the conductive case .
  • ESD electrostatic discharge
  • the functional contactor 100 may have a resilient conductor 310 whose side walls are case-shaped.
  • a conductor 310 having elasticity will be described with reference to FIG.
  • the elastic conductor 310 may include a contact portion 311, a bent portion 312, a spacing portion 313, an external portion 314, and a terminal portion 315.
  • the conductor 310 having elasticity may be a C-clip having a roughly " C " shape. Since the conductor 310 having such elasticity is in line contact or point contact, galvanic corrosion resistance can be excellent.
  • the contact portion 311 has a clip-like curved shape and can be in electrical contact with the conductor of the electronic device.
  • the contact portion 311 may be arranged in the opening 314b provided on one side of the upper surface 314a of the covering portion 314 so that the curved portion protrudes outside the opening 314b.
  • the bent portion 312 extends in a round shape from the contact portion 311 and can have an elastic force. That is, the bent portion 312 may have a predetermined curvature to impart an elastic force.
  • the bent portion 312 may be connected to the contact portion 311 at one end inside the elastic conductor 310 and at the other end to the upper surface 314a between the external portions 314.
  • the spacing portion 313 is a space formed between the lower end of the bending portion 312 and the side wall 314c of the covering portion 314.
  • the bent portion 312 may be spaced apart from the terminal portion 315 by a predetermined distance. That is, the spacing portion 313 separates the bent portion 312 from the terminal portion 315 so as not to constrain the bent portion 312 that provides the elastic force. Therefore, the elastic force by the contact portion 311 and the bent portion 312 may not be affected by the terminal portion 315.
  • the enclosure 314 may include an upper surface 314a, an opening 314b, and a side wall 314c.
  • the upper surface 314a is connected to the bent portion 312 and the side wall 314c and the contact portion 311 may be arranged from the inside to the outside of the opening 314b.
  • the opening 314b may form a space through which the contact portion 311 flows in accordance with the elastic force of the bent portion 312.
  • the side wall 314c may extend vertically from the terminal portion 315 at the long side 315a.
  • the side wall 314c may extend vertically from the terminal portion 315 at the short side 315b where the bent portion 312 is not formed.
  • the external portion 314 may be in the form of a case that surrounds the contact portion 311 and the end portion of the bending portion 312 so that the end portions of the contact portion 311 and the bending portion 312 are not exposed to the outside .
  • the portion of the elastic conductor 310 which is exposed to the outside can be minimized, so that it is possible to suppress the influence of the external elements such as the engagement by the operator.
  • the terminal portion 315 corresponds to the lower surface of the elastic conductive member 310 and may be formed to be connected to the lower portion of the covering portion 314.
  • the terminal unit 315 may be a terminal that contacts the first electrode 121 of the functional device 120 and is electrically connected to the functional device 120.
  • the contact portion 311, the bent portion 312, the external portion 314, and the terminal portion 315 may be integrally formed of a conductive material having an elastic force.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Measuring Leads Or Probes (AREA)

Abstract

L'invention concerne un contacteur fonctionnel. Un contacteur fonctionnel selon un mode de réalisation donné à titre d'exemple de la présente invention comprend : un conducteur élastique en contact avec un conducteur d'un dispositif électronique; un élément fonctionnel connecté au conducteur élastique et ayant une première électrode et une seconde électrode sur au moins une partie de la surface supérieure et de la surface inférieure de celui-ci, respectivement; et une soudure reliant la surface inférieure du conducteur élastique et la première électrode de l'élément fonctionnel. Ici, l'élément fonctionnel comprend une pluralité de trous d'interconnexion conducteurs s'étendant à partir de la première électrode et de la seconde électrode.
PCT/KR2018/007908 2017-07-12 2018-07-12 Contacteur fonctionnel Ceased WO2019013567A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0088409 2017-07-12
KR1020170088409A KR102441830B1 (ko) 2017-07-12 2017-07-12 기능성 컨택터

Publications (1)

Publication Number Publication Date
WO2019013567A1 true WO2019013567A1 (fr) 2019-01-17

Family

ID=65001682

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2018/007908 Ceased WO2019013567A1 (fr) 2017-07-12 2018-07-12 Contacteur fonctionnel

Country Status (2)

Country Link
KR (1) KR102441830B1 (fr)
WO (1) WO2019013567A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014138168A (ja) * 2013-01-18 2014-07-28 Tdk Corp 積層コイル部品
JP2015046494A (ja) * 2013-08-28 2015-03-12 京セラ株式会社 チップ型電子部品
KR20170031040A (ko) * 2015-09-10 2017-03-20 조인셋 주식회사 탄성을 갖는 복합 필터
KR101738984B1 (ko) * 2016-05-26 2017-05-24 주식회사 모다이노칩 보호 컨택터
KR20170060846A (ko) * 2015-11-25 2017-06-02 주식회사 아모텍 감전 보호용 컨택터 및 이를 구비한 휴대용 전자 장치

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101364117B1 (ko) 2012-05-17 2014-02-19 이중식 이동통신 단말기용 안테나의 컨택터 및 그의 제공방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014138168A (ja) * 2013-01-18 2014-07-28 Tdk Corp 積層コイル部品
JP2015046494A (ja) * 2013-08-28 2015-03-12 京セラ株式会社 チップ型電子部品
KR20170031040A (ko) * 2015-09-10 2017-03-20 조인셋 주식회사 탄성을 갖는 복합 필터
KR20170060846A (ko) * 2015-11-25 2017-06-02 주식회사 아모텍 감전 보호용 컨택터 및 이를 구비한 휴대용 전자 장치
KR101738984B1 (ko) * 2016-05-26 2017-05-24 주식회사 모다이노칩 보호 컨택터

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Publication number Publication date
KR20190007232A (ko) 2019-01-22
KR102441830B1 (ko) 2022-09-08

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