Contactor and manufacturing method thereof

Abstract

A contactor for connecting conductors to each other and transmitting signals includes a core portion extending in a vertical direction, containing conductive particles, and formed to be elastically deformable; an insulating portion surrounding a lateral surface of the core portion and formed to be elastically deformable; and a shield portion surrounding a lateral surface of the insulating portion so as to be spaced apart from the core portion, containing conductive particles, and formed to be elastically deformable.

Description

[Technical field]

[0001] The present invention relates to a contactor for connecting and transmitting signals between conductors, and a method for manufacturing the same. [Background technology]

[0002] A coaxial cable is a type of transmission line that compensates for a defect of a two-wire parallel cable in that the effective resistance of the conductor increases at high frequencies due to the skin effect. FIG. 1 shows a coaxial cable and a connector assembled to the coaxial cable. Generally, a coaxial cable 10 has two cylindrical conductors and insulators that share a central axis. The central conductor of the coaxial cable 10 is for actual signal transmission, and the insulator surrounding the central conductor is filled between the central conductor and the outer conductor to separate them from each other. The outer conductor surrounding the insulator is made of a metal shield (mesh) for shielding. For example, the outer conductor can be made of meshed aluminum or copper.

[0003] 1, the metal connector 20 connected to the end of the coaxial cable 10 also consists of a central pin, an insulator surrounding the pin, and a terminal surrounding the insulator. The connector 20 is for mechanically and electrically connecting conductors to each other, and can be designed in various shapes such as an M-type connector, an N-type connector, or an F-type connector depending on the application.

[0004] However, the conventional coaxial cable 10 and connector 20 require complicated manufacturing and assembly processes for individual components and are not designed to be elastically deformed for close contact, so it is difficult to ensure a reliable connection between the conductors of the conventional coaxial cable 10 and connector 20. Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention is intended to solve the above-mentioned problems of the conventional technology, and aims to provide a contactor that connects conductors to each other and transmits signals, and is configured to be elastically deformable, and a manufacturing method thereof.

[0006] It is also an object of the present invention to provide an integrally formed contactor and method of manufacture for interconnecting and transmitting signals between conductors.

[0007] However, the technical objectives to be achieved by this embodiment are not limited to those described above, and other technical objectives may exist. [Means for solving the problem]

[0008] As a means for achieving the above-mentioned technical objectives, one embodiment of the present invention can provide a contactor for connecting conductors to each other and transmitting signals, comprising: a core portion extending in a vertical direction, containing conductive particles, and formed to be elastically deformable; an insulating portion surrounding a lateral surface of the core portion and formed to be elastically deformable; and a shield portion surrounding a lateral surface of the insulating portion so as to be spaced apart from the core portion, containing conductive particles, and formed to be elastically deformable.

[0009] Another embodiment of the present invention can provide a method for manufacturing a contactor for connecting conductors to each other and transmitting signals, the method including the steps of forming a core portion extending in a longitudinal direction, containing conductive particles, and being elastically deformable; forming an insulating portion which is elastically deformable so as to surround a lateral surface of the core portion; and forming a shield portion which is spaced apart from the core portion, containing conductive particles, and being elastically deformable so as to surround a lateral surface of the insulating portion.

[0010] The above-mentioned problem solving means are merely exemplary and should not be construed as limiting the present invention. In addition to the above-mentioned exemplary embodiments, there may be further embodiments described in the drawings and the detailed description of the invention. Effect of the Invention

[0011] According to any of the above-mentioned solutions to the problems of the present invention, a contactor and a manufacturing method thereof can be provided that can ensure a reliable connection and reduce contact resistance by being pressed and adhered to a structure through elastic deformation, and can achieve an effective interconnection even if there is a tolerance or shape difference of the contact surface.

[0012] According to any one of the solutions to the problems of the present invention, the core part, the insulating part, and the shield part are manufactured to be joined together to form an integral part, thereby eliminating the assembly process and reducing manufacturing costs.Furthermore, it is possible to provide a contactor and a manufacturing method thereof that can manufacture the core part, the insulating part, and the shield part in various shapes and physical properties. [Brief description of the drawings]

[0013] [Figure 1] 1 is a diagram showing a coaxial cable and a connector assembled to the coaxial cable. [Diagram 2] 1 is a diagram showing a contactor according to an embodiment of the present invention. [Diagram 3] 13 is a diagram showing a contactor according to another embodiment of the present invention; [Figure 4] 13 is a diagram showing a contactor according to still another embodiment of the present invention. [Diagram 5] 1 is a diagram showing a method of manufacturing a contactor according to the present invention. [Figure 6] 6 is a diagram showing steps of a method for manufacturing the contactor shown in FIG. 5. [Figure 7] 6 is a diagram showing steps of a method for manufacturing the contactor shown in FIG. 5. [Figure 8] 6 is a diagram showing steps of a method for manufacturing the contactor shown in FIG. 5. [Figure 9] 6 is a diagram showing steps of a method for manufacturing the contactor shown in FIG. 5. [Figure 10] 6 is a diagram showing steps of a method for manufacturing the contactor shown in FIG. 5. [Figure 11] 6 is a diagram showing steps of a method for manufacturing the contactor shown in FIG. 5. [Figure 12] 6 is a diagram showing steps of a method for manufacturing the contactor shown in FIG. 5. [Figure 13] 6 is a diagram showing steps of a method for manufacturing the contactor shown in FIG. 5. [Figure 14] 6 is a diagram showing steps of a method for manufacturing the contactor shown in FIG. 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. In the drawings, in order to clearly explain the present invention, parts that are not related to the description are omitted, and similar parts are designated by similar reference numerals throughout the specification.

[0015] Throughout the specification, when a part is said to be "connected" to another part, this includes not only when it is "directly connected" to another part, but also when it is "electrically connected" to another part with another element therebetween. In addition, when a part is said to "include" a certain component, this should be understood to mean that it can further include other components, not excluding other components, unless otherwise specified to the contrary, and does not preclude the presence or possibility of addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0017] Fig. 2 is a diagram showing a contactor according to an embodiment of the present invention. The contactor 100 according to the present invention may include a core part 110, an insulating part 120, and a shield part 130. Referring to Fig. 2, the core part 110, the insulating part 120, and the shield part 130 may be configured in a concentric cylindrical shape. For example, the core part 110, the insulating part 120, and the shield part 130 designed in a concentric cylindrical shape according to an embodiment of the present invention may share a central axis.

[0018] According to an embodiment of the present invention, the core part 110, the insulating part 120, and the shield part 130 may be hardened by a phase change and may be formed integrally with each other. For example, the liquid core part 110, the insulating part 120, and the shield part 130 may be hardened while undergoing a phase change to a solid state and increasing in viscosity. The contactor 100 may form a structure in which the core part 110, the insulating part 120, and the shield part 130 are directly bonded integrally by a phase change.

[0019] In this way, the contactor 100 according to the present invention is manufactured such that the core portion 110, the insulating portion 120, and the shield portion 130 are joined together to form an integral unit, which not only omits the assembly process and reduces manufacturing costs, but also allows the core portion 110, the insulating portion 120, and the shield portion 130 to be manufactured in various shapes. Each configuration will be considered below.

[0020] The core part 110 according to an embodiment of the present invention may extend in a vertical direction, contain conductive particles, and be formed to be elastically deformable. The core part 110 may serve as a conductor for signal transmission. In addition, the shield part 130 according to an embodiment of the present invention may surround a lateral surface of the insulating part 120 to be spaced apart from the core part 110, contain conductive particles, and be formed to be elastically deformable. The shield part 130 is made of a conductive material and may serve to shield interference during signal transmission of the core part 110.

[0021] For example, the core part 110 and the shield part 130 may be made of a material including silicone containing conductive particles. The core part 110 and the shield part 130 may include various kinds of polymeric materials. The core part 110 and the shield part 130 may be made of diene rubber such as silicone, polybutadiene, polyisoprene, SBR, NBR, etc., and hydrogen compounds thereof, and may also be made of block copolymers such as styrene butadiene block copolymer, styrene isoprene block copolymer, etc., and hydrogen compounds thereof. Furthermore, the core part 110 and the shield part 130 may be made of a material such as chloroprene, urethane rubber, polyethylene type rubber, epichlorohydrin rubber, ethylene-propylene copolymer, ethylene propylene diene copolymer, etc.

[0022] Also, the conductive particles contained in the core part 110 and the shield part 130 according to an embodiment of the present invention may be aligned along the vertical direction. For example, the conductive particles may be made of a single conductive metal material such as ferromagnetic iron, copper, zinc, chromium, nickel, silver, cobalt, aluminum, etc., or an alloy material of two or more of these metal materials. Also, the conductive particles may be manufactured by coating the surface of the core metal with a metal having excellent conductivity, such as gold, silver, rhodium, palladium, platinum, or silver and gold, silver and rhodium, silver and palladium, etc. Furthermore, the conductive particles may further include MEMS tips, flakes, wires, carbon nanotubes (CNTs), graphene, etc., in order to improve conductivity.

[0023] The insulating part 120 according to an embodiment of the present invention may be formed to surround a lateral surface of the core part 110 and be elastically deformable. Referring to FIG. 2, the insulating part 120 may be configured to be filled between the core part 110 and the shield part 130 to separate them from each other. The insulating part 120 may function to ensure insulation between the core part 110 and the shield part 130. For example, the insulating part 120 may be made of an insulator made of a material that does not transmit heat or electricity, such as glass, ebonite, or rubber. The insulating part 120 may also be made of an insulating material, such as polyethylene (PE), polyvinyl chloride (PVC), and ethylene / propylene elastic copolymer (EPR).

[0024] In this manner, the contactor 100 according to the present invention, which includes the elastically deformable core portion 110, the insulating portion 120, and the shield portion 130, can be elastically deformed in the vertical and horizontal directions during the process of connecting conductors, and can ensure a reliable connection and reduce contact resistance by being pressed and pressed tightly against a structure. Furthermore, effective interconnection can be achieved even if there is a tolerance or shape difference on the contact surface.

[0025] 3 is a diagram showing a contactor according to another embodiment of the present invention. Referring to FIG. 3, the contactor 100' according to the other embodiment of the present invention may be designed such that a core part 110' and a shield part 130' each have a shape that protrudes in the vertical direction compared to an insulating part 120'.

[0026] For example, the contactor 100' according to the present invention shown in FIG. 3 can eliminate contact instability in electrical connection between conductors by protruding the core part 110' and the shield part 130' relative to the insulating part 120'. The contactor 100' shown in FIG. 3 can stably achieve contact with a conductor (e.g., a terminal of a pad of a test object) by protruding the core part 110' and the shield part 130' containing conductive particles relative to the insulating part 120'. Specifically, when the core part 110' and the shield part 130' are compressed by applying pressure in the length direction in the process of contacting with a conductor, the conductive particles contained in the length direction can provide electrical conductivity in the length direction while contacting each other. The contactor 100' according to the present invention can further increase electrical conductivity by protruding the core part 110' and the shield part 130' relative to the insulating part 120' in the vertical direction.

[0027] 4 is a diagram showing a contactor according to another embodiment of the present invention. Referring to FIG. 4, an insulating part 120'' of a contactor 100'' according to another embodiment of the present invention may be formed to protrude in the vertical direction compared to a shielding part 130'', and a core part 110'' may be formed to protrude in the vertical direction compared to the insulating part 120''.

[0028] For example, the contactor 100″ according to the present invention shown in FIG. 4 can be made to have a small cross-sectional shape of the core portion 110″ that directly contacts the conductor, so that it can be used with fine-pitch pads or terminals, and can have a wide contact area and a variety of shapes when assembled with a counterpart. The contactor 100″ shown in FIG. 4 can be made to have a small diameter at both ends that contact the conductor, so that it can avoid interference with surrounding components and minimize leakage current between adjacent pins. Thus, the contactor 100″ according to the present invention can achieve close coupling between conductors, and each contactor 100″ can operate accurately and individually, improving the accuracy between conductors.

[0029] According to an embodiment of the present invention, the core part 110, the insulating part 120, and the shield part 130 may be designed to have at least one different physical property including hardness, Young's modulus, and resistivity. For example, the core part 110 or the shield part 130 that directly contacts the terminal may be designed to have a higher hardness and modulus than the other parts, thereby improving the accuracy of connection and preventing deformation or damage due to repeated use.

[0030] In addition, the core part 110 and the shield part 130 according to an embodiment of the present invention may be designed to have different properties (e.g., material, size, density, etc.) of the conductive particles contained therein. For example, in relation to the material of the conductive particles described above, the core part 110 or the shield part 130 may be applied with nickel particles for effective alignment of the conductive particles, and copper particles may be applied when it is necessary to improve electrical conductivity. When silica-plated particles are applied, it is advantageous for weight reduction.

[0031] As another example, regarding the size of the conductive particles, large conductive particles have the advantage of being easy to process and have excellent electrical conductivity, while small conductive particles can be distributed relatively uniformly even inside a member with a fine diameter, thereby increasing the hardness or elastic modulus of the member. In consideration of these characteristics, the contactor 100 according to the present invention can be designed by differentiating the material, size, and density of the conductive particles contained in the core part 110 and the shield part 130, and thereby differentiating the hardness or elastic modulus of each.

[0032] In this way, the contactor 100 according to the present invention can satisfy various design requirements for the probe pin by designing the core portion 110 and the shield portion 130 to have different physical properties. In other words, the core portion 110 and the shield portion 130 can be formed to have different physical properties corresponding to a section that requires excellent hardness and a section where elastic deformation is permitted.

[0033] Therefore, the contactor 100 according to the present invention can ensure a reliable connection and reduce contact resistance by being pressed and tightly attached to a structure through elastic deformation, and can achieve an effective interconnection even if there is a tolerance or shape difference in the contact surface.

[0034] Fig. 5 is a diagram showing a method for manufacturing a contactor according to the present invention. The method S100 for manufacturing a contactor shown in Fig. 5 includes steps that are processed in time sequence according to the embodiments shown in Figs. 1 to 4. Therefore, even if the contents are omitted below, they also apply to the method S100 for manufacturing a contactor for connecting conductors to each other and transmitting signals according to the embodiments shown in Figs. 1 to 4.

[0035] In step S110, a longitudinally extending, elastically deformable core 110 containing conductive particles may be formed.

[0036] In step S120, the elastically deformable insulating portion 120 may be formed to surround the lateral surface of the core portion 110.

[0037] In step S130, a resiliently deformable shield portion 130 containing conductive particles may be formed to surround a lateral surface of the insulating portion 120 apart from the core portion 110.

[0038] Hereinafter, each of steps S110 to S130 will be specifically considered. FIGS. 6 to 14 are diagrams showing steps of a method for manufacturing the contactor shown in FIG. 5. First, FIGS. 6 to 8 are diagrams showing step S110 of forming the core part shown in FIG. 5. Referring to FIG. 6, step S110 of forming the core part may include step S111 of filling the core accommodating part 211 of the core part mold 210 with a liquid core part 110 containing conductive particles 111. Here, the core part mold 210 may be made of a non-magnetic metal or resin. Examples include aluminum (Al) and Torlon.

[0039] For example, the liquid core portion 110 may contain conductive particles 111. The conductive particles 111 may be distributed inside the core portion 110 and may be arranged in the length direction of the core portion 110 through a process described below. The conductive particles 111 may contact each other to impart conductivity to the core portion 110 in the length direction. When pressure is applied to the core portion 110 in the length direction to test an object to be tested, which is an electric element, and the core portion 110 is compressed, the conductive particles 111 may become closer to each other, and the electrical conductivity of the core portion 110 in the length direction may become higher.

[0040] 6, in step S111, for example, the core accommodating portion 211 may be filled with the liquid core portion 110, and a plurality of core portion molds 210 filled with the liquid core portion 110 may be stacked to form a sense of length of the core portion 110. As another example, the core accommodating portion 211 may be filled with the liquid core portion 110 after a plurality of core portion molds 210 are aligned or stacked.

[0041] 7, the step S110 of forming the core part may further include a step S112 of aligning the magnetic force concentrating member 240 having the magnetic material pad 241 formed at a position corresponding to the core receiving part 211, and hardening the core part 110. For example, the magnetic force concentrating member 240 may include a plurality of magnetic material pads 241 arranged at regular intervals on the member. Here, the magnetic material pads 241 may be made of a magnetic material metal such as nickel (Ni), nickel-cobalt alloy (NiCo), iron (Fe), etc. In this case, the magnetic force concentrating member 240 may be made of a weak magnetic material, so that the magnetic force may be concentrated on the magnetic material pads 241.

[0042] In step S112, the magnetic force concentrating member 240 can be brought into close contact with the core portion mold 210 so that the core accommodating portion 211 is closed by the magnetic material pad 241. For example, the magnetic force concentrating member 240 can be brought into close contact with the upper and lower ends of the core portion mold 210 in which the core accommodating portion 211 is filled with the liquid core portion 110. The magnetic material pad 241 is for concentrating the magnetic force of the contactor 100 according to the present invention.

[0043] In step S112, the liquid core part 110 may be hardened under preset pressure and temperature conditions. For example, at least one of heat and pressure may be applied to the liquid core part 110 by the magnetic force concentrating member 240. The liquid core part 110 may undergo a phase change by at least one of the applied heat and pressure, and the liquid core parts 110 of each layer filled in the plurality of core part molds 210 may be integrally bonded. That is, the liquid core part 110 may be hardened by applying heat while applying pressure to the magnetic force concentrating member 240 in close contact with the core part mold 210. At this time, as illustrated in FIG. 7, the conductive particles may be rearranged and aligned along the length direction by the magnetic force.

[0044] 8, step S110 of forming the core part may further include step S113 of separating at least a part of the core part mold 210 from the core part 110. For example, in step S113, the core part 110 formed integrally with the liquid core parts 110 filled in each of the multiple core part molds 210 may be separated from the core part mold 210. At this time, by removing the multiple stacked core part molds 210 one by one, the core part 110 that has been manufactured can be more easily separated from the core part mold 210, and the core part 110 can be separated without damaging it.

[0045] 9 to 12 are diagrams showing step S120 of forming the insulating part shown in FIG. 5. First, referring to FIG. 9, step S120 of forming the insulating part may include step S121 of aligning the insulating part mold 220 on the core part mold 210 such that a part of the core part 110 is supported by the core part mold 210 and another part of the core part 110 is inserted into the insulating receiving part 221 of the insulating part mold 220. For example, in step S121, when the manufacturing of the core part 110 is completed, some of the stacked core part molds 210 may be removed and the insulating part mold 220 including the insulating receiving part 221 may be stacked. The remaining core part mold 210 that is not removed may play a role of supporting the core part 110 when the insulating part mold 220 is stacked.

[0046] Also, step S120 of forming the insulating part may further include step S122 of filling the insulating accommodating part 221 of the insulating part mold 220 with the liquid insulating part 120. For example, referring to Fig. 9, the insulating accommodating part 221 of the insulating part mold 220 stacked in step S122 may be filled with the liquid insulating part 120.

[0047] 10 and 11, the step S120 of forming the insulating part may further include a step S123 of hardening the insulating part 120. In step S123, the magnetic force concentrating member 240 having the magnetic material pad 241 formed thereon may be aligned at a position corresponding to the insulating receiving part 221, and the insulating part 120 may be hardened. For example, the magnetic force concentrating member 240 may be brought into close contact with the insulating part mold 220 such that the insulating receiving part 221 filled with the liquid insulating part 120 is closed by the magnetic material pad 241. At this time, if there is no need to concentrate the magnetic force, the magnetic force concentrating member 240 is not necessarily required.

[0048] 10, in S123, the magnetic force concentrating member 240 is brought into close contact with the upper and lower ends of the mold in which the insulating part mold 220 and the core part mold 210 are laminated, and the liquid insulating part 120 can be cured under preset pressure and temperature conditions. For example, at least one of heat and pressure is applied to the liquid insulating part 120 by the magnetic force concentrating member 240, and the liquid insulating part 120 can be cured so that the liquid insulating part 120 undergoes a phase change and is integrally bonded with the core part 110 by the at least one of the heat and pressure applied to the liquid insulating part 120.

[0049] 11, in S123, the insulating part mold 220 can be aligned such that a portion of the core part 110 is supported by the insulating part mold 220 and another portion of the core part 110 is inserted into the insulating receiving portion 221 of the insulating part mold 220. The insulating receiving portion 221 of the aligned insulating part mold 220 can be filled with the liquid insulating part 120 as described above, and the liquid insulating part 120 can be cured under preset pressure and temperature conditions.

[0050] 12, step S120 of forming the insulating part may further include step S124 of separating at least a portion of the insulating part mold 220 from the insulating part 120. For example, in step S124, once the manufacture of the insulating part 120 is completed, some of the stacked insulating part molds 220 may be removed.

[0051] 13 and 14 are diagrams showing step S130 of forming the shield part shown in FIG. 5. First, referring to FIG. 13, step S130 of forming the shield part may include step S131 of aligning the shield part mold 230 on the insulating part mold 220 such that a part of the insulating part 120 is supported by the insulating part mold 220 and another part of the insulating part 120 is inserted into the shield receiving part 231 of the shield part mold 230. For example, in step S131, when the manufacture of the insulating part 120 is completed, some of the stacked insulating part molds 220 may be removed, and the shield part mold 230 including the shield receiving part 231 may be stacked. The insulating part mold 220 that remains without being removed may play a role of supporting the insulating part 120 when the shield part mold 230 is stacked.

[0052] Also, step S130 of forming the shield part may further include step S132 of filling the liquid shield part 130 containing conductive particles into the shield receiving portion 231 of the shield part mold 230. For example, referring to FIG 13, the liquid shield part 130 may be filled into the shield receiving portion 231 of the laminated shield part mold 230 in step S132.

[0053] 14, step S130 of forming the shield part may further include step S133 of aligning the magnetic force concentrating member 240 having the magnetic material pad 241 formed at a position corresponding to the shield housing part 231, and hardening the shield part 130. For example, in step S133, the magnetic force concentrating member 240 may be brought into close contact with the shield part mold 230 such that the shield housing part 231 is closed by the magnetic material pad 241.

[0054] In step S133, with a portion of insulating part 120 supported by shield part mold 230, shield part mold 230 can be aligned so that another portion of insulating part 120 is inserted into shield accommodating portion 231 of shield part mold 230. Shield accommodating portion 231 of aligned shield part mold 230 can be filled with liquid shield part 130 as described above.

[0055] Also, in step S133, the liquid shield part 130 may be hardened under preset pressure and temperature conditions. For example, at least one of heat and pressure may be applied to the liquid shield part 130 by the magnetic force concentrating member 240. The liquid shield part 130 of each layer filled in the plurality of shield part molds 230 may be bonded together through a phase change due to at least one of the heat and pressure applied to the liquid shield part 130. In other words, the liquid shield part 130 may be hardened into a single bonded structure by applying heat while applying pressure to the magnetic force concentrating member 240 in close contact with the shield part mold 230.

[0056] Furthermore, step S130 of forming the shield part may further include a step (S134) of separating the shield part mold 230 and the shield part 130 from each other. For example, in step S134, the liquid shield part 130 filled in each of the multiple shield part molds 230 may be hardened, and the shield part 130 that has been manufactured may be separated from the shield part mold 230.

[0057] In the above description, steps S110 to S130 may be further divided into additional steps or combined into fewer steps depending on the embodiment of the present invention. Also, some steps may be omitted or the order of steps may be changed as necessary.

[0058] The above description of the present invention is for illustrative purposes only, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and are not limiting. For example, each component described as a single type may be implemented in a distributed form, and similarly, each component described as a distributed type may be implemented in a combined form.

[0059] The scope of the present invention is indicated by the claims set forth below rather than by the above detailed description, and all modifications and variations derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included within the scope of the present invention.

Claims

1. In a contactor for connecting conductors to each other and transmitting signals, a core portion extending in a longitudinal direction, containing conductive particles, and formed to be elastically deformable; an insulating portion surrounding a lateral surface of the core portion and formed to be elastically deformable; a shield portion surrounding a lateral surface of the insulating portion so as to be spaced apart from the core portion, the shield portion containing conductive particles, and being formed to be elastically deformable; the core portion and the shield portion have a hardness and an elastic modulus higher than those of the insulating portion, The core portion and the shield portion have different hardness or elastic modulus.

2. The contactor according to claim 1 , wherein the core portion, the insulating portion and the shield portion are hardened by a phase change and integrally formed with each other.

3. The contactor according to claim 1 , wherein the core portion, the insulating portion, and the shield portion are concentric cylindrical.

4. The contactor according to claim 1 , wherein the core portion and the shield portion each have a shape that protrudes in the vertical direction compared to the insulating portion.

5. the insulating portion protrudes in the vertical direction relative to the shielding portion, The contactor according to claim 1 , wherein the core portion is formed to protrude in the vertical direction as compared with the insulating portion.

6. The contactor according to claim 1 , wherein the conductive particles contained in the core portion and the shield portion are aligned along the longitudinal direction.

7. 1. A method for manufacturing a contactor for connecting and transmitting signals between conductors, comprising the steps of: forming a longitudinally extending, elastically deformable core containing conductive particles; forming an elastically deformable insulating portion surrounding a lateral surface of the core portion; and forming a resiliently deformable shield portion containing conductive particles so as to surround a lateral surface of the insulating portion and spaced apart from the core portion; the core portion and the shield portion have a hardness and an elastic modulus higher than those of the insulating portion, A method for manufacturing a contactor, wherein the core portion and the shield portion have different hardness or elastic modulus.

8. The step of forming the core portion includes: Filling the core mold with a liquid core containing conductive particles; aligning a magnetic force concentrating member having a magnetic pad formed at a position corresponding to the core accommodating portion, and hardening the core portion; and The method of manufacturing the contactor of claim 7 including the step of separating at least a portion of the core mold and the core from one another.

9. The step of forming the insulating portion includes:

9. The method for manufacturing a contactor according to claim 8, further comprising a step of aligning the insulation mold on the core mold such that a portion of the core is supported by the core mold and another portion of the core is inserted into an insulating receiving portion of the insulation mold.

10. The step of forming the insulating portion includes: filling the insulation cavity of the insulation mold with liquid insulation; curing the insulation; and The method of manufacturing a contactor as recited in claim 7, including the step of separating at least a portion of the insulator mold and the insulator from one another.

11. The step of forming the shield portion includes:

11. The method for manufacturing a contactor as described in claim 10, comprising the step of aligning the shield mold over the insulation mold such that a portion of the insulation is supported by the insulation mold and another portion of the insulation is inserted into a shield receiving portion of the shield mold.

12. The step of forming the shield portion includes: Filling the shield receiving portion of the shield mold with a liquid shield containing conductive particles; aligning a magnetic force concentrating member having a magnetic pad formed at a position corresponding to the shield housing portion, and hardening the shield portion; and The method of manufacturing the contactor of claim 7 including the step of separating the shield mold and the shield from one another.

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