KR20190101155A - Functionalcontactor - Google Patents

Abstract

A functional contactor is provided. According to an embodiment of the present invention, the functional contactor comprises: an elastic conductor having a lower surface consisting of long sides and short sides, having the height greater than the length of the short side, and having a curved portion at least formed on the edge of the long side and rounded in order to increase the surface area of the lower surface; a function element provided below the elastic conductor, having an upper surface greater than the lower surface of the elastic conductor, including a first region corresponding to the lower surface of the elastic conductor and a second region disposed outside the first region on at least a side of the long side of the elastic conductor, and including a first electrode provided on at least a portion of the upper surface and a second electrode provided on at least a portion of the lower surface; a conductive bonding member including a first conductive portion which is interposed between the elastic conductor and the function element so as to correspond to the lower surface of the elastic conductor to electrically connect the elastic conductor and the function element and a second conductive portion which extends from the first conductive portion and has an inclined surface connecting a portion of sides of the elastic conductor and a portion of an upper portion of the second region in order to increase lateral strength; and a metal layer coated on the surface including at least the curved portion of the elastic conductor and a portion of sides extending from the curved portion in order to increase an area in which the second conductive portion and the elastic conductor make contact with each other. Accordingly, an area, in which the conductive bonding member is in contact with the elastic conductor, can be increased to increase the bonding strength and the lateral strength between the elements, thereby improving product reliability.

Description

Functional contactor {Functionalcontactor}

The present invention relates to a contactor, and more particularly to a functional contactor that can improve the side strength of the device.

In recent years, portable electronic devices have been increasingly adopting metal housings to improve aesthetics and robustness. Such portable electronic devices mitigate external shocks, reduce electromagnetic waves penetrating into or leaking from inside the portable electronic devices, and conduct electrical conductivity such as conductive gaskets or conductive contactors for electrical contact between the antenna and the internal circuit board disposed in the external housing. Use elastic part.

However, when static electricity having a high voltage instantaneously flows through a conductor such as an external metal housing, static electricity flows into the internal circuit board through the conductive elastic portion, thereby damaging a circuit such as an IC, and is generated by AC power. Leakage currents propagate along the ground of the circuit to the outer housing, causing discomfort to the user or, in severe cases, electric shocks that can cause injury to the user.

A functional element for protecting the user from such static electricity or leakage current is provided with a conductive gasket or a conductive contactor connecting the metal housing and the circuit board, and according to the use of a conductor such as a metal case, the user There is also a need for a functional contactor having various functions for protecting a circuit in a portable electronic device or for smoothly transmitting a communication signal.

Moreover, such a functional contactor is laminated to the electrode of the device by soldering the elastic part, but since the elastic part has a high height due to the available range, more external impact acts on the long length of the long side to function with the conductive elastic part. Since the bonding strength and / or lateral strength between the devices is reduced, a large amount of product defects occur as the conductive elastic part is separated from the functional device.

KR 2013-0128543 A (released November 27, 2013)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. The present invention provides a functional contactor that can increase the bonding strength between elements, particularly the lateral strength against physical stimulus in the lateral direction, by increasing the area in which the conductive bonding member contacts the elastic conductor. The purpose is to provide.

In order to solve the above problems, the present invention has an elastic bottom surface having a long side and a short side, the height being larger than the length of the short side, and having a curved surface portion rounded at least at the edge of the long side to increase the surface area of the bottom side. conductor; A first region provided below the elastic conductor, the upper surface of which is larger than the lower surface of the elastic conductor, the first region corresponding to the lower surface of the elastic conductor, and at least on the long side of the elastic conductor; A functional device comprising two regions, the functional element including a first electrode provided on at least a portion of the upper surface and a second electrode provided on at least a portion of the lower surface; A first conductive portion interposed between the elastic conductor and the functional element so as to correspond to a lower surface of the elastic conductor to electrically connect the elastic conductor and the functional element, and to extend from the first conductive portion and to improve lateral strength A conductive bonding member including a second conductive portion having an inclined surface connecting a portion of a side of the elastic conductor and a portion of an upper portion of the second region; And a metal layer coated on a surface including at least the curved portion of the elastic conductor and a portion of a side surface extending from the curved portion so as to increase an area between the second conductive portion and the elastic conductor. to provide.

According to an embodiment of the present invention, the metal may be Sn.

In addition, the first electrode and the second electrode may be provided on the entire upper and lower surfaces of the functional device.

The conductive bonding member may include a first portion formed on an inclined surface of the second conductive portion, a second portion extending on the first portion to cover a portion of the side surface of the elastic conductor, and extending on the first portion of the functional element. The method may further include a coating layer including a third portion covering an upper portion of the second region.

In addition, the coating layer may include a high molecular compound.

In addition, the conductive bonding member may be formed of a composition including an alloy powder, a main resin, a curing agent, a reducing agent, and a curing catalyst.

In addition, the main resin may include one or more selected from the group consisting of bisphenol-based epoxy, novolac-based epoxy, aliphatic epoxy, glycidylamine-based epoxy.

In addition, the alloy powder is Pb-Sn-based, Pb-free Sn-Ag-Cu-based, Sn-Ag-based, Sn-Cu-based, Sn-Bi-based, Sn-Bi-Ag-based, Sn-Bi-Ag-In It may include one or more selected from the group consisting of a system and Sn-Ag-Cu-Bi system.

The elastic conductor may further include a clip-shaped contact portion in contact with a conductor of the electronic device; A bent portion having a predetermined curvature to impart an elastic force; And a terminal portion in electrical communication with the first electrode of the functional element.

The elastic conductor may further include a sidewall extending vertically from the terminal portion at the long side.

In addition, the side wall may extend to at least a portion of the short side where the bent portion is not formed.

In addition, the bent portion may extend from the terminal portion.

In addition, the bent portion may be spaced apart from the terminal portion by a predetermined distance.

In addition, the functional element is an electric shock prevention function for blocking the leakage current of the external power flowing from the ground of the circuit board of the electronic device, a communication signal transmission function for passing a communication signal to the conductive case or from the circuit board, and It may have at least one of the ESD protection function to pass by the discharge when the static electricity flows from the conductive case.

The functional contactor of the present invention can increase the bonding strength and side strength between the elements by increasing the area in which the conductive bonding member is in contact with the elastic conductor, thereby improving the reliability of the product.

1 is a perspective view showing a functional contactor according to an embodiment of the present invention;
2 is a side view of FIG. 1;
3 is a front view of FIG. 1,
4 is a cross-sectional view taken along the line X-X 'of FIG. 1 according to one embodiment of the present invention;
5 is a cross-sectional view taken along the line X-X 'of FIG. 1 according to another embodiment of the present invention, and
6 is a perspective view showing another example of an elastic conductor in a functional contactor according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. The drawings and description are to be regarded as illustrative in nature and not restrictive. Like reference numerals designate like elements throughout the specification.

Functional contactor 100 according to an embodiment of the present invention, as shown in Figures 1 to 5, the elastic conductor 110, the functional element 120, the conductive bonding member 130 and the metal layer 150 Include.

The functional contactor 100 is for electrically connecting a conductive case such as an outer metal case and a conductive bracket electrically coupled to one side to a circuit board or a circuit board in a portable electronic device.

In this case, the functional contactor 100 may have the elastic conductor 110 in contact with the circuit board or the conductive bracket, and the functional element 120 may be coupled to the conductive case. In contrast, the elastic conductor 110 may be connected to the conductive case. In contact, the functional element 120 may be coupled to a circuit board.

For example, when the functional contactor 100 is of the SMT type, that is, when coupled through soldering, the functional element 120 is coupled to the circuit board, in the case of an adhesive layer type, that is, when coupled through a conductive adhesive layer The functional element 120 may be coupled to a conductive case.

The portable electronic device may be a mobile terminal such as a smart phone or a cellular phone, and may be a smart watch, a digital camera, a DMB, an e-book, a netbook, a tablet PC, a portable computer, or the like. Such electronics may have any suitable electronic components including antenna structures for communication with an external device.

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 to partially surround or entirely surround the side of the portable electronic device.

First, the elastic conductor 110 will be described.

The elastic conductor 110 is in electrical contact with the conductor of the electronic device and has an elastic force. For example, the elastic conductor 110 may be in electrical contact with any one of a circuit board of the electronic device, a bracket coupled to the circuit board, and a human body contactable conductor such as a case.

Here, when the elastic conductor 110 is in contact with the conductor, the elastic conductor 110 may be contracted toward the functional element 120 by the pressing force, and when the conductor is separated, the original state by the elastic force Can be restored.

On the other hand, when the elastic conductor 110 is pressed, galvanic corrosion occurs due to a potential difference between dissimilar metals. At this time, in order to minimize galvanic corrosion, it is preferable that the elastic conductor 110 has a small contact area.

One side of the elastic conductor 110 is in contact with the conductor of the electronic device, the other side of the elastic conductor 110 is electrically connected to the functional element 120, the lower surface is composed of a long side 115a and a short side 115b. That is, the elastic conductor 110 may have a rectangular shape in which a lower surface thereof is formed longer than the length of the other side.

Meanwhile, as shown in FIGS. 1 to 3, the elastic conductor 110 has a greater height than the length of the short side 115b. As the height of the elastic conductor 110 is greater than the length of the short side 115b, the external shock may act through a larger area at the long side 115a than the short side 115b.

Accordingly, the functional contactor 100 of the present invention includes a curved surface rounded at the edge of at least the long side of the elastic conductor 110 to increase the measurement strength, thereby increasing the surface area of the lower surface. By providing the curved portion, the bonding area with the conductive bonding member 130 to be described later may be increased.

Meanwhile, as shown in FIG. 1, the elastic conductor 110 may include a contact portion 111, a bent portion 112, a spacer 113, an exterior portion 114, and a terminal portion 115.

Here, the elastic conductor 110 may be a C-clip having a "C-shaped" shape. Since the elastic conductor 110 is in line contact or point contact, galvanic corrosion may be excellent.

The contact part 111 may have a clip-shaped curved part shape and may be in electrical contact with a conductor of an electronic device. The contact part 111 may be disposed in the opening 114b provided at one side of the upper surface 114a of the exterior part 114 such that the curved portion protrudes outward of the opening 114b.

The bent portion 112 extends in a round shape from the contact portion 111 and may have an elastic force. That is, the bent portion 112 may be made of a predetermined curvature to impart an elastic force. Here, one end of the bent part 112 may be connected to the contact part 111 inside the elastic conductor 110, and the other end may be connected to the upper surface 114a between the exterior parts 114.

The spacer 113 is a space formed between the sidewall 114c of the exterior part 114 at the lower end of the bent part 112. As a result, the bent part 112 may be spaced apart from the terminal part 115 by a predetermined distance. That is, the spacer 113 spaces the bent portion 112 and the terminal portion 115 so as not to restrain the bent portion 112 providing the elastic force. Through this, the elastic force by the contact portion 111 and the bent portion 112 may not be affected by the terminal portion 115.

The exterior part 114 includes an upper surface 114a, an opening 114b, and a sidewall 114c. The top surface 114a of the exterior part 114 is connected to the bent part 112 and the side wall 114c, and the opening part 114b has a contact part 111 disposed from the inside to the outside thereof. The opening 114b forms a space in which the contact portion 111 flows according to the elastic force of the bent portion 112.

The side wall 114c extends vertically from the terminal portion 115 at the long side 115a. The side wall 114c may extend to the short side 115b where the bent portion 112 is not formed.

As a result, the exterior part 114 may be formed in the form of a case surrounding the ends of the contact part 111 and the bent part 112 from the outside so that the ends of the contact part 111 and the bent part 112 are not exposed to the outside. .

Through this, the elastic conductor 110 can suppress the influence of the external elements such as the catch by the operator.

The terminal unit 115 may correspond to the lower surface of the elastic conductor 110 and may be formed to be connected to the lower side of the exterior unit 114. The terminal unit 115 may be a terminal in electrical communication with the first electrode 121 of the functional device 120.

The contact part 111, the bent part 112, the exterior part 114, and the terminal part 115 may be integrally formed of a conductive material having elastic force.

Meanwhile, as illustrated in FIG. 6, the functional contactor according to the embodiment of the present invention may include the elastic conductor 210 in which the spacer is omitted. The same parts as the elastic conductor 110 described with reference to FIG. 1 will be omitted.

As shown in FIG. 6, the elastic conductor 210 may include a contact portion 211, a bent portion 212, a sidewall 214, and a terminal portion 215.

The elastic conductor 210 may be a C-clip formed in an approximately "C" shape.

The contact portion 211 has a clip-shaped curved portion shape and may be in electrical contact with a conductor of the electronic device. The contact portion 211 may be disposed to protrude outwardly between the side walls 214.

The bent portion 212 extends in a round shape from the contact portion 211 and may have an elastic force. That is, the bent portion 212 may be made of a predetermined curvature to impart an elastic force. Here, the bent portion 212 may extend from the terminal portion 215. That is, the bent portion 212 may be disposed between the contact portion 211 and the terminal portion 215.

The side wall 214 extends vertically from the terminal portion 215 at the long side 215a. The side wall may extend to a portion 214a of the short side 215b where the bent portion 212 is not formed. That is, the side wall 214 is formed on both sides of the short side 215b where the bent portion 212 is not formed, and a space is formed therebetween. In this case, the contact portion 211 may flow by the elastic force of the bent portion 212 in the space between the portion 214a of the side wall 214.

Through this, the elastic conductor 210 can suppress the influence of the external elements such as the catch by the operator.

The terminal portion 215 may correspond to the lower surface of the elastic conductor 210 and may be formed to connect from the lower side of the side wall 214. The terminal unit 215 may be a terminal in electrical communication with the first electrode of the functional device.

Next, the functional device 120 will be described.

The functional element 120 is provided below the elastic conductor 110, and has an upper surface larger than a lower surface of the elastic conductor 110 and corresponding to a lower surface of the elastic conductor 110. 121a and a second region 121b disposed at an outer side of the first region 121a at least on the long side of the elastic conductor 110.

The first region 121a corresponding to the lower surface of the elastic conductor 110 and the second region 121b disposed at the outer side of the first region 121a on at least the long side of the elastic conductor 110 are included. In addition, the conductive bonding member 130 to be described later forms an inclined surface connecting a portion of the side of the elastic conductor 110 and a portion of the upper portion of the second region 121b, and thus the elastic conductor 110 and the functional element 120 Bonding strength and side strength between the can be improved, the reliability of the product can be further improved.

In addition, the functional device 120 includes a first electrode 121 provided on at least a portion of the upper surface and a second electrode 122 provided on at least a portion of the lower surface.

That is, in the functional device 120, a body between the first electrode 121 and the second electrode 122 may protrude outward from the first electrode 121 and the second electrode 122.

As another example, the first electrode 121 and the second electrode 122 may be formed to have a large area in order to increase the capacitance of the capacitance. That is, the first electrode 121 and the second electrode 122 may be formed over the entire upper and lower surfaces of the functional device 120, respectively.

In this case, the first electrode 121 is laminated and coupled through the conductive bonding member 130 to which the elastic conductor 110 is described later, and the second electrode 122 is coupled to the circuit board through soldering or is conductive through the conductive adhesive member. It may be coupled to a conductor such as a case.

On the other hand, the functional element 120 may be provided with a function for protecting the user or the internal circuit. For example, the functional device 120 may include at least one of an electric shock protection device, a varistor, a suppressor, a diode, and a capacitor.

That is, the functional device 120 may block the leakage current of the external power flowing into the conductor from the ground of the circuit board. In this case, the functional element 120 may be configured such that the breakdown voltage Vbr or the breakdown voltage is greater than the rated voltage of the external power source of the electronic device. Here, the rated voltage may be a standard rated voltage for each country, and for example, may be any one of 240V, 110V, 220V, 120V, and 100V.

In addition, when the conductive case has an antenna function, the functional element 120 serves as a capacitor by the first electrode 121 and the second electrode 122 provided on the upper and lower surfaces to block leakage current of an external power source. In addition, it can pass a communication signal flowing from a conductor or a circuit board.

In addition, the functional element 120 may pass static electricity (ESD) flowing from the conductive case without breaking the insulation. In this case, the functional device 120 may be configured such that the breakdown voltage Vbr is smaller than the dielectric breakdown voltage Vcp of the body provided between the first electrode 121 and the second electrode 122.

Accordingly, the functional contactor 100 electrically connects and passes the conductive case and the circuit board with respect to communication signals, electrostatic discharge (ESD), etc., but leakage current of external power from the circuit board is transferred to the conductive case. You can block it.

Next, the conductive bonding member 130 will be described.

The conductive bonding member 130 includes an area between the elastic conductor 110 and the functional element 120 to electrically connect the elastic conductor 110 and the functional element 120.

After the conductive bonding member 130 is coated with at least a portion of the upper surface of the first electrode 121, the conductive bonding member composition is coated on the conductive bonding member 130, and then the elastic conductor 110 is formed on the conductive bonding member composition. The molten conductive bonding member composition is disposed on and heated to the lower surface of the elastic conductor 110 and at least a portion of the upper surface of the first electrode 121 of the functional element 120, thereby heating the melted conductive bonding member composition. The functional device 120 may be combined.

In this case, the bonding strength and the side strength between the elastic conductor 110 and the functional element 120 act differently at the short side 115b and the long side 115a. That is, the elastic conductor 110 may have an external impact through a larger area at the long side 115a than at the short side 115b.

Therefore, since the elastic conductor 110 is more vulnerable to external impact on the long side 115a side than the short side 115b side, the elastic conductor 110 is separated from the functional element 120 in a large amount, and thus, the supplementation is required.

To this end, according to the present invention, the conductive bonding member 130 is interposed between the elastic conductor 110 and the functional element 120 so as to correspond to the lower surface of the elastic conductor 110. An inclined surface extending from the first conductive portion 130a and the first conductive portion 130a and connecting a portion of the side surface of the elastic conductor 110 and a portion of the upper portion of the second region 121b to improve side strength is formed. The second conductive portion 130b is included.

Through this, the elastic conductor 110 and the functional element 120 so that the formation area of the conductive bonding member 130 connecting the elastic conductor 110 and the functional element 120 corresponds to the lower surface of the elastic conductor 110. The first conductive portion 130a interposed therebetween, extends from the first conductive portion 130a, and a portion of the side surface of the elastic conductor 110 and a portion of the upper portion of the second region 121b to improve side strength. Since it is increased by the second conductive portion 130b which forms the inclined surface, the bonding strength and the side strength of the elastic conductor 110 to the long side 115a can be increased, and therefore, the external impact on the long side 115a. In addition, since the elastic conductor 110 is suppressed from being separated from the functional element 120, the reliability of the product can be improved.

Meanwhile, the conductive bonding member 130 may be formed of a composition including an alloy powder, a main resin, a curing agent, a reducing agent, and a curing catalyst.

First, the main resin may be used without limitation as long as the main resin can be used to form a bonding member in the art, preferably an epoxy resin can be used. In one example, the epoxy resin may include at least one selected from the group consisting of bisphenol epoxy, novolac epoxy, aliphatic epoxy and glycidylamine epoxy.

In addition, the alloy powder may be used without limitation as long as the alloy powder that can be included in the joint member that can be electrically connected between devices in the art, preferably an alloy of two or more bases can be applied. In one example, the alloy powder is Pb-Sn-based, Pb-free Sn-Ag-Cu-based, Sn-Ag-based, Sn-Cu-based, Sn-Bi-based, Sn-Bi-Ag-based, Sn-Bi-Ag- It may include one or more selected from the group consisting of In-based and Sn-Ag-Cu-Bi-based.

In addition, the curing agent may be used without limitation as long as it is a material that can be used as a curing agent in the art, preferably, an amine curing agent, a phenol curing agent and a thiol curing agent may be used. In addition, the reducing agent may be used without limitation so long as it is a substance that can be used as a reducing agent in the art, preferably oxalic acid, malonic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, and the like. Sebacic acid etc. can be used.

In addition, the curing catalyst may be used without limitation as long as the material can be used as a curing catalyst in the art, preferably, may be a basic nitrogen compound. In one example, the basic nitrogen compound may be an imidazole compound.

Meanwhile, as shown in FIG. 5, the conductive bonding member 130 extends to the first portion 140a and the first portion 140a formed on the inclined surface of the second conductive portion 130b and the elastic conductor. A second portion 140b covering a portion of the side surface of the 110 and a third portion 140c extending over the first portion 140a and covering an upper portion of the second region 121b of the functional device 120. The coating layer 140 may further include.

By further including a coating layer 140 including the first portion 140a, the second portion 140b, and the third portion 140c, the bonding strength and the lateral strength of the long side 115a of the elastic conductor 110 are included. It is possible to further increase, thereby suppressing separation of the elastic conductor 110 from the functional element 120 in the external impact on the long side (115a) can significantly improve the reliability of the product.

In addition, the coating layer 140 may include a high molecular compound, and preferably, may be a coating layer 140 formed by curing an epoxy.

Next, the metal layer 150 will be described.

The metal layer 150 includes a surface including at least the curved portion of the elastic conductor 110 and a part of the side surface extending from the curved portion to increase the area where the second conductive portion 130b and the elastic conductor 110 contact each other. Coated on.

Including the metal layer 150 is coated on the surface including at least the curved portion of the elastic conductor 110 and a part of the side surface extending from the curved portion, the above-mentioned conductive bonding member 130 to the elastic conductor 110 It may be formed to be in contact with the curved portion of the surface portion and the side portion extending from the curved portion, thereby increasing the area of the conductive bonding member 130 in contact with the elastic conductor 110, as well as the lower portion of the elastic conductor 110 Since the conductive bonding member 130 is formed to have a predetermined thickness from the coupling portion between the surface and the functional element 120, the bonding strength and the lateral strength between the elastic conductor 110 and the functional element 120 are further increased at the long side 115a. It can be improved so that the reliability of the product can be further improved.

In this case, the metal forming the metal layer 150 including the curved portion and the side surface portion of the elastic conductor 110 may be Sn.

Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments set forth herein, and those skilled in the art who understand the spirit of the present invention, within the scope of the same idea, the addition of components Other embodiments may be easily proposed by changing, deleting, adding, and the like, but this will also fall within the spirit of the present invention.

100: functional contactor 110,210: elastic conductor
111, 211: contact portion 112,212: bend portion
113: separation portion 114: the outer portion
114a: upper surface 114b: opening
114c, 214: side walls 115, 215: terminal portions
115a: long side 115b: short side
120: functional element 121: first electrode
121a: first area 121b: second area
122: second electrode 130: conductive bonding member
130a: first conductive part 130b: second conductive part
131: second conductive bonding member 140: coating layer
140a: first part 140b: second part
140c: third portion 150: metal layer

Claims (14)

An elastic conductor having a lower surface consisting of a long side and a short side, having a height greater than the length of the short side and having a curved portion rounded at least at the edge of the long side to increase the surface area of the lower side;
A first region provided below the elastic conductor, the upper surface of which is larger than the lower surface of the elastic conductor, the first region corresponding to the lower surface of the elastic conductor, and at least on the long side of the elastic conductor; A functional device comprising two regions, the functional element including a first electrode provided on at least a portion of the upper surface and a second electrode provided on at least a portion of the lower surface;
A first conductive portion interposed between the elastic conductor and the functional element so as to correspond to a lower surface of the elastic conductor to electrically connect the elastic conductor and the functional element, and to extend from the first conductive portion and to improve lateral strength A conductive bonding member including a second conductive portion having an inclined surface connecting a portion of a side of the elastic conductor and a portion of an upper portion of the second region; And
And a metal layer coated on a surface including at least the curved portion of the elastic conductor and a portion of a side surface extending from the curved portion to increase an area between the second conductive portion and the elastic conductor. The method of claim 1,
And the metal is Sn. The method of claim 1,
The first electrode and the second electrode is a functional contactor is provided on the entire upper and lower surfaces of the functional element. The method of claim 1,
The conductive bonding member
A first portion formed on the inclined surface of the second conductive portion,
A second portion extending to the first portion and covering a portion of the side surface of the elastic conductor;
And a coating layer including a third portion extending over the first portion and covering the upper portion of the second region of the functional element. The method of claim 4, wherein
The coating layer is a functional contactor comprising a high molecular compound. The method of claim 1,
The conductive bonding member is a functional contactor formed of a composition comprising an alloy powder, a main resin, a curing agent, a reducing agent and a curing catalyst. The method of claim 6,
The main resin is a functional contactor comprising at least one selected from the group consisting of bisphenol-based epoxy, novolac-based epoxy, aliphatic epoxy, glycidylamine-based epoxy. The method of claim 6,
The alloy powder is Pb-Sn-based, Pb-free Sn-Ag-Cu-based, Sn-Ag-based, Sn-Cu-based, Sn-Bi-based, Sn-Bi-Ag-based, Sn-Bi-Ag-In-based and Functional contactor comprising at least one selected from the group consisting of Sn-Ag-Cu-Bi system. The method of claim 1,
The elastic conductor,
A clip-shaped contact in contact with the conductor of the electronic device;
A bent portion having a predetermined curvature to impart an elastic force; And
And a terminal portion in electrical communication with the first electrode of the functional element. The method of claim 9,
The elastic conductor further comprises a sidewall extending vertically from the terminal portion at the long side. The method of claim 10,
The side wall extends on at least a portion of the short side where the bent portion is not formed. The method of claim 9,
And the bent portion extends from the terminal portion. The method of claim 9,
The bent portion is a functional contactor spaced apart from the terminal portion by a predetermined distance. The method of claim 1,
The functional element has an electric shock prevention function for blocking leakage current of external power flowing from the ground of a circuit board of an electronic device, a communication signal transmission function for passing a communication signal flowing from or to the conductive case, and the conductive case. A functional contactor having at least one of the ESD protection functions passed by the discharge upon discharge of static electricity from the battery.

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