JPH08236180A - Contact device, and its manufacture - Google Patents

Abstract

PURPOSE: To lessen contact resistance and simplify the structure so as to lower the price by inserting the tip, where the cover is peeled off, of a covered wire into the contact installation hole of a plate from the rear thereby fixing it, and exposing the tip of the core from the surface of the plate by specified length. CONSTITUTION: One end of a covered wire 8 is inserted to the position where the head face, from which the cover is peeled off, of the cover 9 engages with the step between the small-diameter part 5b and the large-diameter part 5a of a contact installation hole 5. The tips exposed from the covers 9 of the cores 10 are projected by about 0.2mm equally from the surface of the plate 4, passing through the sections 5b of the holes 5, so as to form contacts. The section inserted into the hole 5 of the wire 8 is fixed with an adhesive. Then, an anisotropic conductor 12 is bonded through an anisotropic adhesive to the face projected from the plate 4 of the core 10 constituting the contact. Hereby, solder is not required for the electric connection between the contact and the covered wire, and the contact property can be equalized, and the manhour in work decreases.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact device, and more particularly to a portion to be contacted which is at least a part of the wiring, terminal and / or electrode of a contacted object having a large number of wiring, terminals and / or electrodes. The present invention relates to a contact device that has a large number of corresponding contactors and electrically draws out a portion to take each contact through each contactor, and a manufacturing method thereof.

[0002]

2. Description of the Related Art Electronic circuits using ICs, transistors, and other electronic parts are very much used in various devices and equipments, and their applications are steadily expanding.
These electronic circuits are usually constructed by using a printed circuit board having a wiring film printed on one side or both sides, and an IC, a transistor, and various other electronic components are mounted on the printed circuit board, and necessary soldering is performed. By doing so, an electronic circuit is configured. Many devices and devices using electronic circuits are required to be downsized, highly functionalized, and have high performance, and accordingly, circuit configurations of electronic circuits are complicated and highly integrated. Therefore, the wiring of the printed circuit board also tends to be miniaturized and highly integrated, and it is becoming difficult and difficult to inspect it. This is because short-circuit defects and the like are less likely to occur when the wiring is thick and the number is small, but short-circuit defects are more likely to occur and the discovery thereof becomes more difficult as the wiring becomes finer and highly integrated.

FIGS. 3A and 3B show a conventional example of a contact device used for inspecting a printed circuit board.
Is a perspective view of a main part, and (B) is a sectional view of a contactor attachment plate. In the drawing, a is a lower base and b is an upper base, which are vertically arranged so as to be opposed to each other, and one of them, for example, the upper base b is perpendicular to the other, for example, the lower base a by guides c, c. It is designed so that it can be approached or separated by being guided by. Reference numeral d denotes a lower plate attached to the surface of the lower base a, which is electrically led out by a contact (j) described later of wirings q, q, ... Formed on the lower surface of the printed circuit board p to be inspected. The contactor mounting holes f, f, ... Are formed at positions corresponding to the respective power points.

.. are the contact mounting holes f,
The contactor attached to f, ...
Contact needles j, j, ... Are mounted in h, ... Via springs i, i .. Contact g, g, ...
Is the contact attachment holes f, f, from the upper surface side of the upper plate a.
・ Mount it on the and use the collar as a stopper. The ends of the covered wires k, k, ... Are connected to the bottoms of the cases h, h, ... Of the contacts g, g ,. The other end of each of the covered electric wires k, k, ... Is connected to the socket l. A cable (not shown) of the inspection machine body (not shown) is attached to the socket l.

The plate g attached to the upper base b is also provided with contacts g, g, ... Like the lower base a, and the cases h, h ,. ,
One end of k, ... Is connected, and the other end of the covered electric wires k, k, ... Is connected to a socket (which may be different from or the same as the above socket l). ing. m and n are positioning tools that define the positional relationship of the inspected printed board p with respect to the plates d and e.

In order to inspect whether the wiring on both sides of the inspected printed circuit board p is abnormal using this contact device, the inspected printed circuit board p is placed between the upper and lower lower bases a and b. , Upper gate b guide c, c, ...
··········································· From the positioning tool m, n is fitted into the positioning hole o of the printed circuit board p, the printed circuit board p is positioned with respect to the plates d, e. , E of the contacts g, g ... Attached to the contactors g, g ... Are brought into contact with the surfaces of the wirings q, q ,. Then, in that state, the wirings q, q of the printed circuit board p to be inspected by an inspection machine (not shown) connected to the socket l (, l) of the contact device via a cable.
Test for short-circuit defects.

[0007]

The conventional contact device described above has the following problems. First
, The contact needles j, j, ...
Since they are projected by about m, the blurring is not small, so that the wirings q, q, ... Are 2.54 mm, 1.
Although it is possible to deal with a printed circuit board having an integration degree of 27 mm pitch, it is difficult to deal with it when the pitch is 1 mm or less, and all the contacts g, g, ... Have a good contact state with the corresponding wiring. There was a problem that it became difficult to do. This is a problem that cannot be overlooked because it makes it impossible to inspect a printed circuit board that meets the demand for high integration and miniaturization.

Secondly, since the structure of the contacts g, g, ... Is complicated, the cost is high. Therefore, the manufacturing cost of the contact device is high, and the contact device is easily broken, resulting in high maintenance cost. is there. This inevitably causes a rise in the price of the printed circuit board and is a problem that cannot be overlooked. Thirdly, when the contact g is used, the contact resistance between the wire and the contact needle j between the wire and the connector l,
The contact resistance between the spring i and the contact needle j in the case h with the collar and the contact resistance between the spring i and the inner bottom surface of the case h with the collar hinder the total contact resistance, which makes it difficult to perform highly accurate inspection. There are also problems. Further, it is necessary to perform connection work such as soldering or lapping the tip of the covered electric wire to the case main body h that constitutes the contact g, and this work is not only troublesome, but there is no possibility of connection failure. Absent.

The present invention has been made to solve such a problem, and is at least a part of the wiring, terminal and / or electrode of a contacted object having a large number of wiring, terminals and / or electrodes. In a contact device having a large number of contacts corresponding to the portions to be contacted and electrically leading the portions to be contacted to each other through the respective contacts, the arrangement density of wirings, terminals and / or electrodes Each contact can be made even with respect to a highly contacted object, and further, the contact resistance existing between the wiring, the terminal and / or the electrode of the contacted object and the covered electric wire is reduced, Moreover, it is an object of the present invention to eliminate the need to use an expensive contactor, simplify the structure, facilitate manufacturing, and reduce the manufacturing cost.

[0010]

A contact device according to a first aspect of the present invention is provided with a large number of contactor mounting holes having a small diameter on the front side and a large diameter on the back side for contacting the wiring of a contacted object, terminals and / or electrodes. A plate formed so as to correspond to the power part, and the tip of which the coating is peeled off forms a contact from the back side to each contact attachment hole of the plate. The core wire of the tip protrudes from the surface of the plate for a predetermined length and is covered. A large number of covered electric wires inserted and fixed so that their tips engage with the stepped portion between the large diameter portion and the small diameter portion of the contactor mounting hole, and an anisotropic conductor fixed to the surface of the plate. A surface having the wiring, the terminal and / or the electrode of the contacted object on the surface of the anisotropic conductor, and the positional relationship between the wiring, the terminal and / or the terminal and the contactor is predetermined. Align and press in the street Characterized by comprising as obtain conductivity between the portion and the covered electric wire to take contact more the terminal and / or terminal.

According to a second aspect of the contact device, a contact mechanism portion having the same structure as the contact device according to the first aspect is provided.
Two pieces are provided so as to face each other, and each contact mechanism section presses an object to be contacted with an anisotropic conductor from both sides thereof, so that the portions of the wiring, terminals and / or electrodes on the both sides to be contacted are contacted. It is characterized in that it is electrically led to the outside by a covered electric wire through a contact of the device. The contact device according to claim 3 is the contact device according to claim 1 or 2, wherein the anisotropic conductor is fixed to the surface of the plate by adhesion through an anisotropic conductive adhesive. And

A method of manufacturing a contact device according to claim 4 is
The method for manufacturing a contact device according to claim 1, 2 or 3, wherein a large number of contactor mounting holes, each of which has a small diameter on the front side and a large diameter on the back side, are provided on the wiring of the contacted object, the contact of the terminal and / or the electrode. Prepare a plate formed so as to correspond to the portion to be taken, and put the tip of the covered electric wire whose coating at the tip is peeled off into the contactor mounting holes of the plate from the back side of the plate so that the core wire of the tip is Inserted and fixed so as to project from the surface of the plate a little longer than a predetermined length so that the coating tip engages with the stepped portion between the large diameter portion and the small diameter portion of the contactor mounting hole,
A spacer having a core wire insertion hole at a position corresponding to the core wire of each covered electric wire on the surface of the plate and having a thickness substantially the same as the length to be projected from the plate of the core wire, corresponds to each of the core wire insertion holes. Aligning and applying so that each core wire passes, polishing the portion of each core wire protruding from the spacer, remove the spacer from the plate,
An anisotropic conductor is fixed on the surface of the plate.

[0013]

According to the contact device of the present invention, the tip end of the coated electric wire whose coating has been peeled off is inserted and fixed into the contactor mounting hole of the plate from the back surface side to expose the tip end of the core wire from the plate surface for a predetermined length. As a result, the contactor can be obtained, and no special part is required as the contactor, so that the number of parts and the price of parts can be extremely low. The electrical connection between each contact and the corresponding wiring, terminal, and / or electrode of the inspected printed circuit board of the contacted object is obtained via an anisotropic conductor, which is the same as in the conventional case. It is possible to almost eliminate the sway of contact needles that have been projected for a long time, and to reliably form an electrical connection state even if the wiring density is high, and the arrangement pitch of the wiring, terminals and / or electrodes is, for example, 100 microns. It can correspond to the ones of

Moreover, between the covered electric wire and the wiring, terminal and / or electrode of the printed circuit board to be inspected of the contacted object, the anisotropic conductor and the wiring, the terminal and / or the contact resistance are provided.
Or, only the contact resistance between the electrode and the contact between the anisotropic conductor and the exposed tip of the core wire of the covered electric wire is interposed,
Moreover, the contact resistance due to the pressure contact of the wires, terminals and / or electrodes with respect to the anisotropic conductor, and the core wire tip of the covered electric wire forming the contact can be made extremely small as compared with the resistance of the contact between non-elastic members. Therefore, the contact resistance can be reduced. Therefore, contact can be made very well. Moreover, since the contactor and the covered electric wire are integrated and it is not necessary to connect the contactor and the covered electric wire by soldering or lapping, the connection work not only reduces the manufacturing cost, but also causes a connection failure. The failure rate is very low because the Therefore, the contact can be made very well, and the breakdown is reduced,
Maintenance costs can also be reduced.

According to a second aspect of the contact device, a pair of contact mechanism portions having the same structure as the contact device of the first aspect are provided so as to face each other, and each contact mechanism portion is made of an anisotropic conductor so that both surfaces are covered. The contacted object having a large number of wirings, terminals and / or electrodes is press-contacted from both sides thereof to cover the portions to be contacted by the wirings, terminals and / or electrodes on the both sides via the contactors of each contact mechanism section. Since it is electrically led out to the outside by an electric wire, it is possible to simultaneously make contact with the wiring, the terminals and / or the electrodes on both surfaces of the contacted object. Therefore, it is extremely convenient for inspection of the double-sided printed wiring board. According to the contact device of claim 3, since the anisotropic conductor is fixed to the plate by adhering it through the anisotropic conductive adhesive, the anisotropic conductor is reliably fixed to the plate, Moreover, since the adhesive is made of an anisotropic conductive material, the conductivity between the anisotropic conductor and the tip of the core wire of the coated electric wire exposed on the plate surface is not impaired.

According to the method of manufacturing a contact device of claim 4, the tip of the covered electric wire, the coating of which is previously peeled from the back side of the contactor mounting hole of the prepared plate, is removed from the back side of the plate. , The core wire of the tip projects slightly longer than a predetermined length from the surface of the plate, and the coated tip is inserted and fixed so as to engage with the stepped portion between the large diameter portion and the small diameter portion of the contactor mounting hole. It is possible to expose the tip of the core wire of the covered electric wire, which is a contact from the surface. Then, on the surface of the plate, a spacer having a core wire insertion hole at a position corresponding to the core wire of each of the coated electric wires and having a thickness substantially the same as the length to be projected from the plate of the core wire, and the spacer in each core wire insertion hole Since the corresponding core wires are aligned and applied so as to pass through, and the portions of the core wires protruding from the spacers are polished and the spacers are removed from the plate, the surface of the plate of the core wire of the covered electric wire forming each contactor The length protruding from the can be made extremely precise and uniform. Then, since the anisotropic conductor is fixed on the plate, by pressing an object to be contacted to the surface of the anisotropic conductor, a portion to be brought into contact with the wiring, terminal and / or electrode and the corresponding portion Electrical connection with the covered electric wire can be achieved through the anisotropic conductor, and the contactor is integral with the covered electric wire, so that the contactor and the covered electric wire can be electrically connected to each other as in the conventional case. No connection work such as soldering is required. Therefore, the number of man-hours required may be very small, and the occurrence rate of defects may be small.

[0017]

The present invention will be described in detail below with reference to the illustrated embodiments. 1A and 1B show one embodiment of the contact device of the present invention, in which FIG. 1A is a perspective view showing a main part, and FIG. 1B is a front view of a covered electric wire forming a contact. It is sectional drawing which shows the plate inserted and fixed to the child mounting hole. In the drawings, reference numeral 1 is a lower contact mechanism portion, 2 is an upper contact mechanism portion, both of which have substantially the same structure, and are vertically opposed to each other.

First, the structure of the lower contact mechanism portion 1 will be described. 3 is a base, on the surface of which a plate 4 is provided. Reference numerals 5, 5, ... Are contactor mounting holes, which are formed at positions corresponding to respective portions of the wiring 7 of the printed circuit board 6 to be inspected to be contacted. Each contactor mounting hole 5, 5, ... Has a large diameter on the lower side and a small diameter on the upper side, 5a is a large diameter portion, and 5b is a small diameter portion. There is a step. Reference numerals 8, 8, ... Are coated electric wires, one end of which is covered with a coating 9 which is slightly longer than the length of the small diameter portion 5b of the contactor mounting hole 5. The core wires of the covered electric wires 8, 8, ...

The above-mentioned one end of each of the above-mentioned covered electric wires 8, 8, ...
5, are inserted and fixed by adhesion. Specifically, the coated wires 8, 8, ...
The tip end surfaces of 9, ... Are contact hole 5, 5 ,.
Small-diameter parts 5b, 5b, ... and large-diameter parts 5a, 5a,
... to the position where it is engaged with the step between
One end of 8, ... Is inserted, and core wires 10, 10, ...
The tip exposed from the coating 9, 9, ... Passes through the small diameter portions 5b, 5b, ... Of the contactor mounting holes 5, 5 ,. It is protruding. The projecting amounts of the core wires 10, 10, ... Are made uniform. The portions of the core wires 10, 10, ... That protrude from the plate 4 serve as contacts. .. can be almost eliminated by shortening the length of the projecting portions of the core wires 10, 10, ... The portions of the covered electric wires 8, 8 ... That are inserted into the contactor mounting holes 5, 5, ... Are fixed with an adhesive so as not to come off from the plate 4. On the other hand, the other end of each covered electric wire 8, 8, ... Is connected to the socket 11. The zocket 11 is connected with a cable (not shown) connected to an inspection circuit of an inspection device (not shown).

Reference numeral 12 is a thin elastic anisotropic conductor adhered to the surface of the plate 4 through an anisotropic conductive adhesive 12a made of anisotropic conductive rubber or the like, which is perpendicular to the surface. When pressure is applied in the direction of, the part under pressure contracts and vertical conductivity occurs in the part. Therefore, the printed circuit board 6 to be inspected on the anisotropic conductor 12 is a contactor including portions of the wirings 7, 7, ... Which should be contacted and core wires 10, 10 ,. When they are placed after being aligned with each other and an appropriate pressure is applied, each core wire 10, 10, ... Of the anisotropic conductor 6 and the wiring 7,
The core wires 10, 10 ... Of each of the core wires 10 ,. Therefore, the terminals of the socket 11 are electrically connected to the portions of the wirings 7, 7, ... Become. Reference numeral 13 is a positioning tool for positioning the printed circuit board 6 to be inspected with respect to the plate 4. When the tip end of the positioning tool 13 is aligned with the positioning hole 14 of the plate 4, the positioning can be performed. There is.

The upper contact mechanism portion 2 has almost the same structure as the lower contact mechanism portion 1 and is different only in that it is arranged on the upper side of the lower contact mechanism portion 1 so as to face it. Therefore, the description of the configuration will be omitted because it is redundant. Are guides for vertically guiding the upper contact mechanism section 2 with respect to the lower contact mechanism section 1, and the upper contact mechanism section 2 is guided by the guides 15, 15 ,. Move up and down. In the normal state, the lower contact mechanism unit 1 and the lower contact mechanism unit 1 are opened, and when the inspection is performed, the printed circuit board 6 is aligned on the anisotropic conductor 12 of the lower contact mechanism unit 1. Then, the upper contact mechanism unit 2 is lowered, and the surface of the anisotropic conductor 6 of the upper contact mechanism unit 2 is aligned and applied to the upper surface of the printed circuit board 12 to be inspected. Apply pressure. Then, the portions of the printed circuit board 12 to be in contact with the respective wirings 7, 7, ...

FIGS. 2A to 2E are sectional views showing, in the order of steps, a method of assembling the contactor, which is a main part of the present contact device, to the plate. (A) First, as shown in FIG. 2A, a plate 4 having contactor mounting holes 5, 5, ... Is prepared. The contactor mounting holes 5, 5, ... Of the plate 4 are formed at positions corresponding to respective portions of the wiring 7 of the printed circuit board 6 to be inspected, and the lower side has a large diameter (5a).
As described above, the upper side has a small diameter (5b). (B) Next, as shown in FIG. 2B, the tips of the covered electric wires 8, 8, ... In which the coatings 9, 9 ,. , Are inserted into the contactor mounting holes 5, 5, ... Of the plate 4 from the back side of the plate 4, and the tips of the core wires 10, 10 ,. Project from. Then, the tip ends of the covered electric wires 8, 8, ...
Secure with adhesive to prevent it from coming off.

(C) Next, as shown in FIG. 2 (C), the core wire insertion holes 1 are formed in the portions corresponding to the core wires 10, 10 ,.
A thin plate-shaped spacer (thickness of 0.3 mm, for example) 17 on which the wires 6, 16, ... Are formed on the plate 4 has a core wire insertion hole 16 in which the tips of the core wires 10, 10 ,. , 16, ... so that they are aligned and bonded. (D) Next, the portions of the core wires 10, 10, ... Protruding from the surface of the spacer 17 are polished, and as shown in FIG. Are located on the same plane as the surface of the spacer 17. By this polishing, the amount of protrusion of each core wire 10, 10, ... From the surface of the plate 4 is the same as the thickness of the spacer 17 (for example,
0.3 mm). After that, the core wires 10, 10, ...
Is plated with, for example, tin.

(E) Next, when the spacer 17 is peeled off, as shown in FIG. 2 (E), the core wires 10, 10, ...
A plate 4 having a contactor made of is assembled. After that, the core wire 10 forming the contactor of the plate 4,
The anisotropic conductor 12 is adhered to the surface where 10, ...

According to such a manufacturing method, since the contactor is integral with the covered electric wire 8, that is, the core wire 10 of the covered electric wire 8 itself, the solder is used for electrical connection between the contactor and the covered electric wire as in the conventional case. No need to attach. Therefore, the number of man-hours required may be very small, and the occurrence rate of defects may be small. Then, the spacer 17 having substantially the same thickness as the length of the core wires 10, 10, ...
Is adhered to the surface of the plate 4, and each core wire 10, 10, ...
Since the portion protruding from the spacer 17 is polished and then the spacer 17 is removed from the plate 4, the length of the core wire 10, 10, ... Of the covered electric wire 8 forming each contact from the surface of the plate 4 Can be made extremely accurate and uniform. Therefore, the contact property can be made uniform.

In the above embodiment, the wirings 7, 7 ,.
Although the present invention is applied to a contact device for making contact with the inspected printed circuit board 6 having .., the present invention also applies to a contact device for making contact with the inspected printed circuit board 6 having wiring on only one surface. It goes without saying that it can be applied. in this case,
The upper contact mechanism unit 2 in FIG. 1 is not necessary, and it is preferable to use a press instead of the upper contact mechanism unit 2 to press the printed circuit board 6 to be inspected against the lower contact mechanism unit 1 with an appropriate pressure. Further, the contact device of the present invention is not only a contact device for inspecting a printed circuit board, but also a contact device for inspecting a bare IC chip having a pad electrode or a resin-sealed IC for contacting each terminal of a resin-sealed IC. Can also be applied to the inspection contact device. The contact is not limited to wiring but may be an electrode or a terminal.

[0027]

According to the contact device of the first aspect of the present invention, the tip end of the coated electric wire whose coating is peeled off is inserted and fixed in the contactor mounting hole of the plate from the back surface side so that the tip end of the core wire extends from the plate surface of a predetermined length. By exposing, the contactor can be obtained, and no special part is required as the contactor, so the number of parts and the price of parts can be extremely low. Since the electrical connection between each contact and the corresponding wiring, terminal and / or electrode of the inspected printed circuit board of the contacted object is obtained through the anisotropic conductor, the contactor is shortened. However, a reliable electrical connection can be obtained, and there is no fear that the long contact needle is shaken as in the conventional case. Therefore,
Even if the arrangement pitch of the wiring, the terminal and / or the electrode is small, the electrical connection state can be reliably formed, and specifically, the arrangement pitch of 100 microns, for example, can be sufficiently dealt with.

Moreover, between the covered electric wire and the wiring, terminal and / or electrode of the printed circuit board to be inspected of the contacted object, the anisotropic conductor and the wiring, the terminal and / or the contact resistance are provided.
Or, only the contact resistance between the electrode and the contact between the anisotropic conductor and the exposed tip of the core wire of the covered electric wire is interposed,
Moreover, the contact resistance due to the pressure contact of the wires, terminals and / or electrodes with respect to the anisotropic conductor, and the core wire tip of the covered electric wire forming the contact can be made extremely small as compared with the resistance of the contact between non-elastic members. Therefore, the contact resistance can be reduced. Therefore, contact can be made very well. Moreover, since the contactor and the covered electric wire are integral and there is no need to connect the contactor and the covered electric wire by soldering or wrapping, the connection work not only reduces the manufacturing cost, but also causes a connection failure. Since there is no occurrence, the failure rate is higher. Therefore, it is possible to make a very good contact and reduce the occurrence rate of failure.

According to the contact device of the second aspect, a pair of contact mechanism parts having the same structure as the contact device of the first aspect are provided so as to face each other, and the anisotropic conductive material is provided by each contact mechanism part. By pressing the contacted object from both surfaces thereof, the portions of the wirings, terminals and / or electrodes on the both surfaces to be contacted are electrically led to the outside by the covered electric wire through the contacts of each contact mechanism section. Therefore, it is possible to simultaneously make contact with the wiring, the terminals and / or the electrodes on both sides of the contacted object. Therefore, it is extremely convenient for inspection of the double-sided printed wiring board. According to the contact device of claim 3,
Since the anisotropic conductor is fixed to the plate by adhering it through an anisotropic conductive adhesive, the anisotropic conductor is securely fixed to the plate, and the adhesive is made of an anisotropic conductive material. Therefore, the conductivity between the anisotropic conductor and the tip of the core wire of the covered electric wire whose plate surface is exposed is not impaired.

According to the method of manufacturing the contact device of claim 4, the tip of the covered electric wire, the coating of the tip of which has been previously peeled from the back side of the contact mounting hole of the prepared plate, is attached to the back side of the plate. , The core wire of the tip projects from the surface of the plate a little longer than a predetermined length, and the coated tip is inserted and fixed so as to engage with the stepped portion between the large diameter portion and the small diameter portion of the contactor mounting hole. The tip of the core wire of the covered electric wire, which becomes the contact from the surface of, can be exposed. Then, on the surface of the plate, a spacer having a core wire insertion hole at a position corresponding to the core wire of each of the coated electric wires and having a thickness substantially the same as the length to be projected from the plate of the core wire, and the spacer in each core wire insertion hole Since the corresponding core wires are aligned and applied so as to pass through, and the portions of the core wires protruding from the spacers are polished and the spacers are removed from the plate, the surface of the plate of the core wire of the covered electric wire forming each contactor The length protruding from the can be made extremely precise and uniform. Then, since the anisotropic conductor is fixed on the plate, the surface of the anisotropic conductor is divided into a portion to be contacted with the wiring, terminals and / or electrodes and a covered electric wire corresponding thereto. Electrical conduction between them can be achieved through the anisotropic conductor, and since the contactor is integral with the covered electric wire, soldering is required for electrical connection between the contactor and the covered electric wire as in the conventional case. do not need. Therefore, the number of man-hours required may be very small, and the occurrence rate of defects may be small.

[Brief description of drawings]

1A and 1B show one embodiment of a contact device of the present invention, FIG. 1A is a perspective view, and FIG. 1B is a sectional view of a plate to which a contact is attached.

2A to 2E are cross-sectional views showing, in the order of steps, a method of assembling a contactor to a plate, which is a main part of a method for manufacturing a contact device of the present invention.

3A and 3B show one of conventional examples of a contact device, FIG. 3A is a perspective view, and FIG. 3B is a cross-sectional view of a plate to which a contact is attached.

[Explanation of symbols]

 1, 2 Upper and lower contact mechanism section 4 Plate 5 Contactor mounting hole 5a Large diameter part of contactor mounting hole 5b Small diameter part of contactor mounting hole 5 Contact object (printed circuit board to be inspected) 7 Wiring 8 Coated wire 9 Coating 10 Core wire 12 Anisotropic conductor 12a Anisotropic conductive adhesive

Claims (4)

[Claims] 1. A plurality of contacts corresponding to a portion to be contacted, which is at least a part of the wiring, terminals and / or electrodes, of a contacted object having a large number of wiring, terminals and / or electrodes, In a contact device that electrically draws out the portion to be contacted to each other through each contactor, a large number of contactor mounting holes with a small diameter on the front side and a large diameter on the back side have wiring and terminals of the contacted object. And / or a plate formed so as to correspond to a portion of the electrode to be contacted, and a tip portion whose coating is peeled off is provided in each contactor mounting hole of the plate, and the tip end of the core wire forming the contactor from the back side. A plurality of covered electric wires that are inserted and fixed so that they protrude from the surface of the plate for a predetermined length and the covered tips engage with the stepped portion between the large diameter portion and the small diameter portion of the contactor mounting hole; Surface of At least a fixed anisotropic conductor, and the correspondence of the wiring, the terminal, and / or the portion to be contacted to the terminal with the contacted object on the surface of the anisotropic conductor, and the contactor. The contact device is characterized in that the parts to be contacted with each other and the covered electric wire are brought into conduction by aligning and press-contacting each other so that they match each other. 2. A plurality of contacts corresponding to a portion to be contacted which is at least a part of the wiring, terminal and / or electrode of a contacted object having a large number of wiring, terminals and / or electrodes on both sides. In a contact device that electrically draws out a portion to take each contact through each contactor, a large number of contactor mounting holes with a small diameter on the front side and a large diameter on the back side have wiring of the contacted object, The plate formed so as to correspond to the portion of the terminal and / or the electrode to be contacted, and the tip portion of which the coating is peeled off, the tip end of the core wire forming the contactor from the back side in each contactor mounting hole of the plate. A large number of covered electric wires protruding from the surface of the plate by a predetermined length so that the covered tips are engaged and fixed to the stepped portion between the large diameter portion and the small diameter portion of the contactor mounting hole, and the surface of the plate. To Two contact mechanism portions provided with at least the defined anisotropic conductor are provided so as to face each other, and the anisotropic conductor is used by the two contact device mechanism portions to contact the object to be contacted from both sides thereof. A contact characterized in that a portion of the wiring, terminals and / or electrodes on both surfaces to be contacted by pressure contact is electrically led to the outside by a covered electric wire through a contact of each contact device. apparatus 3. The contact device according to claim 1, wherein the anisotropic conductor is fixed to the surface of the plate by adhesion with an anisotropic conductive adhesive. 4. A large number of contactor mounting holes, each having a small diameter on the front side and a large diameter on the back side, correspond to a portion to be contacted, which is at least a part of the wiring, terminal and / or electrode of the contacted object. Prepare the formed plate, and put the tip of the covered electric wire whose coating of the tip has been peeled off longer than a predetermined length into each of the contactor mounting holes of the plate from the backside of the plate so that the tip of the core wire forming the contactor is Inserted and fixed so as to project from the surface of the plate a little longer than a predetermined length so that the coating tip engages with the stepped portion between the large diameter portion and the small diameter portion of the contactor mounting hole, and on the surface of the plate, A spacer having a core wire insertion hole at a position corresponding to the core wire of each covered wire and having a thickness approximately the same as the length to be projected from the core wire plate is aligned so that each core wire corresponding to the core wire insertion hole passes through the spacer. Then guess The contact device according to claim 1, 2 or 3, wherein a portion of each core wire protruding from the spacer is polished, the spacer is removed from the plate, and an anisotropic conductor is fixed to the surface of the plate. Manufacturing method