JP5492808B2 - Electrical inspection jig and method for manufacturing wiring board - Google Patents

Description

  The present invention relates to an electrical inspection jig and a method for manufacturing a wiring board.

  In the manufacturing process of a wiring board such as a printed board, an electrical inspection device is used to inspect the quality of the wiring pattern. In general, such an electrical inspection device is actually an electrical inspection jig for inspecting electrical continuity (cutting of wiring, contact between wirings, etc.) of a wiring pattern by actually making electrical contact with a wiring board. And a tester for measuring an electrical signal (mainly current) obtained by the inspection.

  The electric inspection jig includes an electric inspection jig body and an electric inspection jig head. The electrical inspection jig head has a plurality of probes formed on the bottom or top surface of the housing for actually making electrical connection to the wiring pattern of the wiring board. A plurality of connectors (pins) for connecting external wiring for transmitting the inspected (measured) electrical signal to a tester or the like are formed on at least one side surface of the casing.

  In addition, the electrical inspection jig head is provided with wiring that is electrically connected to each of the plurality of probes in the housing, and the electrical inspection jig body also includes a plurality of connectors ( Pins) are electrically connected to each other. In addition, the wiring of the jig head for electrical inspection and the wiring of the jig body for electrical inspection are electrically connected to each other (see, for example, Patent Document 1).

  In such an electric inspection jig, if the number of inspections on the wiring board increases, the probe of the electric inspection jig head wears down and deteriorates, so the electric inspection jig head is used for electric inspection. It is provided so as to be detachable with respect to the jig main body. When the probe deteriorates, it can be appropriately repaired by removing the electric inspection jig head from the electric inspection jig main body.

  On the other hand, the wiring pattern of the wiring board differs depending on, for example, the product number, and accordingly, the number of connectors (pins) and the number of wires of the electric inspection jig main body of the electric inspection jig, and the number of probes and the number of wires of the electric inspection jig head. Therefore, it is necessary to prepare an electric inspection jig for each product number of the wiring board. Therefore, a plurality of jigs for electrical inspection must be prepared according to the product number of the wiring board, and there is a problem that the cost for performing electrical inspection inevitably increases.

  In addition, when replacing the electrical inspection jig according to the product number of the wiring board, when replacing the electrical inspection jig, the cable attached to the connector (pin) of the used electrical inspection jig body is sequentially removed and a new one to be used. It is necessary to perform the operation of sequentially attaching to the connector of the main body in a jig for electrical inspection. Generally, since the number of pins of a connector reaches several thousand, it takes a long time to remove and attach a cable to such a connector. Therefore, there is a problem that the time required for performing the electrical inspection of the wiring board is inevitably prolonged.

  Furthermore, when replacing the electrical inspection jig according to the product number of the wiring board, the electrical inspection jig must be aligned with the wiring board to be subjected to the electrical inspection each time. There is a problem that the time required to perform the electrical inspection is inevitably prolonged.

  On the other hand, when the electrical inspection as described above is included as an indispensable step in the manufacturing process of the wiring board, there is a problem that the cost required for manufacturing the wiring board increases and the time required for the manufacturing increases. .

JP-A-2005-69954

  The present invention provides an electrical inspection jig capable of performing an electrical inspection of a wiring board at a low cost and in a short time, and by using the electrical inspection jig, a wiring pattern can be formed at a low cost and in a short time. It is an object of the present invention to provide a method for manufacturing a wiring board with electrical inspection.

In order to achieve the above object, the present invention provides:
A plurality of external connection terminals provided on the outer surface of the first housing, and in the first housing, are electrically connected to each of the plurality of external connection terminals, and An electrical inspection jig body having a plurality of first wires extending to the lower surface side;
In the second casing, a plurality of second wirings extending from the upper surface side to the lower surface side, and electrically connected to each of the plurality of second wirings on the lower surface side of the second casing. An electrical inspection jig head having a plurality of probes,
In the third casing sandwiched between the electrical inspection jig main body and the electrical inspection jig head, it extends from the upper surface side to the lower surface side, and at least a part of the plurality of first wirings. An electrical inspection jig connector having a plurality of third wirings that electrically connect each wiring and each of the plurality of second wirings ;
The electric inspection jig head and the electric inspection jig connector are replaceable with respect to the electric inspection jig main body, and relate to an electric inspection jig.

The present invention also provides:
Producing a wiring board having at least one conductor layer and a resin insulation layer, and having a metal terminal electrically connected to the conductor layer exposed from the opening of the resin insulation layer;
The electrical continuity inspection of the conductor layer is performed by bringing the plurality of probes of the electrical inspection jig according to any one of claims 1 to 5 into contact with the metal terminals of the wiring board. Process,
It is related with the manufacturing method of a wiring board characterized by providing.

  The electrical inspection jig of the present invention connects these between the conventional electrical inspection jig body and the electrical inspection jig head, and also connects the wiring of the electrical inspection jig body and the electrical inspection jig head. It has an electrical inspection jig connection body having wiring for connection. Therefore, the external connection terminals and the number of wires of the electrical inspection jig main body are fixed, and only the number of wires of the electrical inspection jig connection body and the number of probes and the number of wires of the electrical inspection jig head are to be inspected. It can be changed according to the product number of the substrate, that is, only the electrical inspection jig connector and the electrical inspection jig head can be replaced.

  Therefore, it is not necessary to replace the electrical inspection jig body according to the product number of the wiring board to be inspected, and the cost required for the electrical inspection of the wiring board can be reduced. In addition, since the number of external connection terminals and the number of wirings of the electrical inspection jig main body can be fixed, the cable attached to the external connection terminal of the main body of the used electrical inspection jig is sequentially removed and a new electric power used. The operation of sequentially attaching to the external snow image terminal of the main body in the inspection jig becomes unnecessary. Furthermore, since it is not necessary to replace the electric inspection jig main body, it is possible to simplify the alignment of the electric inspection jig with respect to the wiring board to be subjected to the electric inspection. As a result, the time required to perform the electrical inspection of the wiring board can be greatly shortened.

  Also, in the method of manufacturing a wiring board that performs an electrical inspection of such a wiring board, the time required for the electrical inspection of the wiring board can be shortened as described above, so that the time required for manufacturing the wiring board is reduced. It can be shortened.

  The electrical inspection jig main body may be provided in advance in a commercially available electrical inspection apparatus.

  In general, a commercially available electrical inspection apparatus is also provided with an electrical inspection jig comprising an electrical inspection jig body and an electrical inspection jig head. However, even in this case, since the wiring pattern of the wiring board used for the inspection differs depending on, for example, the product number, it is necessary to prepare an electrical inspection jig for each product number of the wiring substrate. Therefore, a plurality of jigs for electrical inspection must be prepared according to the product number of the wiring board, and there is a problem that the cost for performing electrical inspection inevitably increases. In addition, there is a problem that a vast space must be secured in order to store a plurality of electric inspection jigs.

  On the other hand, if sufficient space cannot be secured, the existing electrical inspection jig must be discarded. After that, when an electrical inspection of a wiring board that matches the jig is attempted, The same jig as the inspection jig has to be manufactured, and there is a problem that the inspection becomes complicated and the cost is further increased.

  However, in a commercially available electrical inspection device, only the electrical inspection jig main body of the electrical inspection jig of the present invention is provided in advance, and the above-described electrical inspection jig connection is made according to the product number of the wiring board. A body and an electric inspection jig head can be separately provided, and only the electric inspection jig connecting body and the electric inspection jig head can be exchanged according to the product number of the wiring board.

  Therefore, it is only necessary to prepare an electrical inspection jig connection body and an electrical inspection jig head separately according to the product number of the wiring board, so that the cost for performing the electrical inspection can be reduced, and the electrical inspection jig connection body In addition, since only the electrical inspection jig head needs to be stored, the space required for storage can be reduced.

  That is, the electrical inspection jig of the present invention can be applied to a commercially available electrical inspection apparatus, and cost reduction and space saving of jig storage can be achieved. Furthermore, it is possible to avoid the risk of discarding existing electrical inspection jigs in order to secure storage space.

  In the example of the present invention, the number of the second wirings of the electrical inspection jig head and the number of the third wirings of the electrical inspection jig connector are the same as each other, and the first number of the electrical inspection jig main body is the same. The number of wirings can be made equal to or less. In this case, the first number of wires and the number of connectors of the electric inspection jig main body are set to be larger in consideration of the product number of the wiring board to be inspected, etc., and the number of second wires (and It is sufficient to set the number of probes) and the number of third wirings of the electrical inspection jig connection body in accordance with the product number of the wiring board to be inspected, which facilitates the design of the electrical inspection jig. .

  In the electrical inspection jig connector of the electrical inspection jig of the present invention, the plurality of third wirings are electrically connected to at least some of the plurality of first wirings and the plurality of second wirings, respectively. Then, as described above, the number of the second wirings of the electrical inspection jig head and the number of the third wirings of the electrical inspection jig connection body are the same as described above, and This is caused by considering the case where the number of the first wirings of the jig main body is not more than the number.

  Furthermore, in one example of the present invention, the jig body for electrical inspection includes a biasing means electrically connected to each of the tip portions on the lower surface side of the first housing in the plurality of first wires. A plurality of pin-shaped jigs including a plurality of pin-shaped jigs, wherein the electrical inspection jig connector is electrically connected to each of the tip parts on the upper surface side of the third housing in the plurality of third wirings. The plurality of first wirings and the plurality of third wirings are connected to each other through electrical connection between the plurality of pin-shaped jigs and the plurality of metal members. Can be electrically connected. In this case, electrical connection between each of the first wiring and the third wiring can be more reliably performed.

  In one example of the present invention, each of the plurality of second wirings in the electrical inspection jig head and each of the plurality of third wirings in the electrical inspection jig connector includes a plurality of probes in the second housing. The tips of each other can be pressed and electrically connected by an internal stress generated when attaching to the lower surface of the body. In this case, the electrical connection between each of the second wiring and the third wiring described above can be more reliably performed.

  In addition, the concept of “upper surface” and “lower surface” in the present invention is used for convenience in consideration of the normal usage form of the electrical inspection jig in order to define the configuration of the electrical inspection jig of the present invention. The electrical inspection jig body is located at the top, the electrical inspection jig head is located at the bottom, and the electrical inspection jig connector is located between the electrical inspection jig body and the electrical inspection jig head It was used as.

  Therefore, the electrical inspection jig of the present invention is turned upside down, the electrical inspection jig head is located at the top, the electrical inspection jig body is located at the bottom, and the electrical inspection jig connector is the electrical inspection jig body. And the electrical inspection jig head, the above-mentioned concept of “upper surface” and “lower surface” is reversed.

  That is, the concept of “upper surface” and “lower surface” in the present invention is a term for defining a relative positional relationship for defining the configuration of the electric inspection jig of the present invention, and an absolute positional relationship. It is not a word indicating.

  Furthermore, in an example of the present invention, an electrode electrically connected to the first wiring and the third wiring is provided between the electric inspection jig main body and the electric inspection jig connector. An electrical property inspection jig can be provided. In this case, for example, by attaching a socket to the electrode and connecting it to a predetermined measuring instrument via a lead wire attached to the socket, the above-described electrical inspection tool can be used. In addition to inspection, measurement (inspection) of electrical characteristics can be performed almost simultaneously.

  As described above, according to the present invention, an electrical inspection jig capable of performing electrical inspection of a wiring board at a low cost and in a short time is provided, and by using this electrical inspection jig, It is possible to provide a method for manufacturing a wiring board that involves electrical inspection of a wiring pattern at low cost and in a short time.

It is a figure which shows schematic structure of the jig for electrical inspections in 1st Embodiment. Similarly, it is a figure which shows schematic structure of the jig | tool for an electrical test | inspection in 1st Embodiment. Similarly, it is a figure which shows schematic structure of the jig | tool for an electrical test | inspection in 1st Embodiment. Similarly, it is a figure which shows schematic structure of the jig | tool for an electrical test | inspection in 1st Embodiment. Similarly, it is a figure which shows schematic structure of the jig | tool for an electrical test | inspection in 1st Embodiment. It is a figure which shows schematic structure of the jig for electrical inspections in 2nd Embodiment. Similarly, it is a figure which shows schematic structure of the jig | tool for an electrical test | inspection in 2nd Embodiment. It is a figure which shows schematic structure of the jig for electrical inspections in 3rd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
1-5 is a figure which shows schematic structure of the jig for electrical inspections in 1st Embodiment. FIG. 1 is a plan view when viewed from the upper side of the electrical inspection jig of the present embodiment, and FIG. 2 is a plan view when viewed from the lower side of the electrical inspection jig of the present embodiment. 3 is a cross-sectional view of the electrical inspection jig shown in FIGS. 1 and 2 taken along the line II, and FIG. 4 is an electrical inspection jig head of the electrical inspection jig according to the present embodiment. FIG. 5 is an enlarged view of a front end portion A of FIG. 5, and FIG. 5 is an enlarged view of a connection portion B between the electric inspection jig main body and the electric inspection jig connector of the electric inspection jig according to the present embodiment. FIG.

  In FIG. 3, in order to clarify the characteristics of the electrical inspection jig in the present embodiment, the electrical inspection jig body, the electrical inspection jig head, and the electrical inspection jig connector in the electrical inspection jig are: It is described so as to be separated from each other.

  As shown in FIGS. 1 to 3, the electrical inspection jig 10 of the present embodiment includes an electrical inspection jig body 11, an electrical inspection jig head 12 positioned below the electrical inspection jig body 11, the electrical inspection jig body 11, and the electrical inspection. And an electrical inspection jig connector 13 positioned between the electrical jig head 12.

  The electrical inspection jig main body 11 is provided with a plurality of connectors 112 on a pair of opposite side surfaces 111A and 111B of the outer surface of the first casing 111, and the inside thereof is not shown as an external connection terminal. Connector pins are arranged. As shown below, in this embodiment, since the jig body 11 for electrical inspection is used without replacement even if the product number of the wiring board to be inspected is changed, generally, the wiring board to be inspected is used. The total number of pins of connector 112 is determined taking into account the maximum expected electrical contact point. As an example, the number of pins can be 4096.

  In the first casing 111, a plurality of first wirings 113 are provided that are electrically connected to each of the connector pins and extend to the lower surface 111D side of the first casing 111. . Furthermore, at the lower part of the first casing 111, as shown below, in order to facilitate handling when the electric inspection jig head 12 and the electric inspection jig connector 13 are removed and replaced, or an electric inspection is performed. When the electrical inspection of the wiring board is actually performed using the jig 10, a hook 114 is provided for facilitating the fixing to the inspection table. In addition, when fixing the jig 10 for electrical inspection to an inspection stand, it can be fastened with a bolt and a nut through a through hole (not shown), for example.

  The electrical inspection jig head 12 has a plurality of second wires 122 extending from the upper surface 121C side to the lower surface 121D side in the second casing 121, and the second wires 122 on the lower surface 121C. Plural for inspecting the electrical continuity (cutting of wiring, contact between wirings, etc.) of wiring patterns on the wiring board by making electrical contact with the metal terminals of the wiring board to be inspected and actually contacting each The probe 123 is provided.

  As shown in FIG. 4, the probe 123 includes a distal end portion 123A, a central portion 123B, and a base portion 123C. As described above, the front end portion 123A is actually brought into contact with the metal terminal of the wiring board to be subjected to inspection, and used for inspection of electrical continuity (cutting of wiring, contact between wirings, etc.) of the wiring pattern of the wiring board. Is. The central portion 123B is covered with an insulating material and electrically insulated from the outside, and the base portion 123C is press-fitted into the second casing 121. Therefore, the internal stress generated in the second casing 121 due to the above press-fitting acts on the second wiring 122 electrically connected to the probe 123 from the lower surface toward the upper surface.

  The electrical inspection jig connector 13 is positioned so as to be sandwiched between the electrical inspection jig main body 11 and the electrical inspection jig head 12, and in the third casing 131, the upper surface 131C side to the lower surface 131D side. And a plurality of third wirings 132 that electrically connect at least some of the plurality of first wirings 113 and the plurality of second wirings 122 respectively.

  As shown in FIG. 5, a plurality of metal pin-like shapes respectively connected to a plurality of first wires 113 on the lower surface 111D of the first casing 111 of the electrical inspection jig main body 11 A member 115 is provided. The pin-shaped member 115 has a pin-shaped convex portion 115A positioned at the tip and a spring portion 115B as a biasing means positioned rearward, and the convex portion 115A is pushed downward by the biasing force of the spring portion 115B. It is supposed to be.

  In addition, the top surface 131C of the third casing 131 of the electrical inspection jig connector 13 is electrically connected to each of the top ends of the plurality of third wirings 132 on the top surface 131C side. A plurality of metal pads 133 are arranged. The metal pad 133 is formed with a recess (depression) 133 </ b> A so as to correspond to the shape of the pin-shaped protrusion 115 </ b> A located at the tip of the pin-shaped member 115.

  Therefore, the plurality of first wirings 113 of the electrical inspection jig main body 11 and the plurality of third wirings 132 of the electrical inspection jig connecting body 13 are respectively connected to the projections 115A of the plurality of pin-shaped jigs 115 and the plurality of wirings. When the recess 133A of the metal pad 133 is in pressure contact, it is electrically connected. In this case, electrical connection between the plurality of first wirings 113 and the plurality of third wirings 132 can be more reliably performed.

  Further, as described above, in the electrical inspection jig head 12, internal stress generated in the second housing 121 due to the press-fitting of the probe 123 acts on the second wiring 122 from the lower surface toward the upper surface. doing. Therefore, due to the internal stress, the distal end portion of the second wiring 122 on the upper surface 121C side of the second casing 121 is third on the lower surface 131D side of the third casing 131 in the electrical inspection jig connector 13. Each of the wires 132 is pressed against the tip of the wiring 132. Therefore, the second wiring 122 of the electrical inspection jig head 12 and the third wiring 132 of the electrical inspection jig connector 13 are electrically connected to each other by pressing their tips. Electrical connection between these wirings can be performed more reliably.

As described above, the first wiring 113 of the electrical inspection jig body 11 and the second wiring 122 of the electrical inspection jig head 12 are electrically connected to each other via the third wiring 132 of the electrical inspection jig connector 13. The electrical inspection jig 10 shown in FIGS. 1 to 3 ensures electrical continuity from the electrical inspection jig body 11 to the electrical inspection jig head 12 . Although not particularly illustrated, the electrical inspection jig main body 11 to the electrical inspection jig head 12 are mechanically connected via an uneven engagement member or the like formed in each housing.

  As a result, the electric inspection jig main body 11, the electric inspection jig head 12 and the electric inspection jig connecting body 13 constituting the electric inspection jig 10 are electrically and mechanically connected to each other. The jig 10 can be used for inspection of electrical continuity (cutting of wiring, contact between wirings, etc.) of the wiring pattern of the wiring board.

  The electrical continuity can be detected by a tester or the like connected to the connector 112 of the electrical inspection jig main body 11 via a lead wire (not shown).

  The electrical inspection jig 10 of the present embodiment includes an electrical inspection jig connector 13 that electrically and mechanically connects the electrical inspection jig main body 11 and the electrical inspection jig head 12. . Therefore, the number of connectors (pins) of the electrical inspection jig main body 11 and the number of the first wirings 113 are fixed, the number of the third wirings of the electrical inspection jig connector 13, and the electrical inspection jig head 12. Only the number of probes 123 and the number of second wires 122 are changed according to the product number of the wiring board to be inspected, that is, only the electrical inspection jig connector 13 and the electrical inspection jig head 12 are exchanged. Can be.

  Therefore, it is not necessary to replace the electrical inspection jig main body 11 according to the product number of the wiring board to be inspected, and the cost required for the electrical inspection of the wiring board can be reduced. In addition, since the number of connectors (pins) of the electrical inspection jig main body 11 and the number of the first wires 113 can be fixed, they are attached to the connectors (pins) of the main body 11 of the electrical inspection jig 10 used. The operation of sequentially removing the cables and sequentially attaching them to the connectors (pins) of the main body 11 of the new electrical inspection jig 10 to be used becomes unnecessary. Furthermore, since it is not necessary to replace the electric inspection jig body 11, the alignment of the electric inspection jig with respect to the wiring board to be subjected to electric inspection can be simplified. As a result, the time required to perform the electrical inspection of the wiring board can be greatly shortened.

  Also, in the method of manufacturing a wiring board that performs an electrical inspection of such a wiring board, the time required for the electrical inspection of the wiring board can be shortened as described above, so that the time required for manufacturing the wiring board is reduced. It can be shortened.

  Further, in the commercially available electrical inspection apparatus, only the electrical inspection jig main body 11 is provided in advance, and the electrical inspection jig head 12 and the electrical inspection jig connector 13 are separately provided in the product number of the wiring board. Only the electrical inspection jig head 12 and the electrical inspection jig connector 13 can be exchanged according to the product number of the wiring board.

  Accordingly, since only the electrical inspection jig head 12 and the electrical inspection jig connector 13 need be prepared separately according to the product number of the wiring board, the cost for performing the electrical inspection can be reduced, and the electrical inspection jig Since only the head 12 and the electrical inspection jig connector 13 need be stored, the space required for storage can be reduced. Furthermore, it is possible to avoid the risk of discarding existing electrical inspection jigs in order to secure storage space.

  In the present embodiment, as is clear from the above description, the number of the first wirings 113 of the electrical inspection jig body 11, the second wirings 122 of the electrical inspection jig head 12, and the electrical inspection jig connection. The number of the third wirings 132 of the body 13 is the same. However, in general, the number of pins of the connector 112 of the electrical inspection jig main body 11 and the number of the first wirings 113 associated therewith are set to be larger in consideration of the product number of the wiring board to be inspected.

  Therefore, the number of second wirings 122 (and the number of probes) of the electrical inspection jig head 12 and the number of third wirings 132 of the electrical inspection jig connector 13 depend on the product number of the wiring board to be inspected. Will be set to decrease. In this case, in the electrical inspection jig 10 shown in FIGS. 1 to 3, the third wiring 132 of the electrical inspection jig connector 13 is not connected to a part of the first wiring 113 of the electrical inspection jig body 11. It will be.

  The number of pins of the connector 112 of the electrical inspection jig main body 11 and the number of the first wirings 113 associated therewith are set in consideration of the product number of the wiring board to be inspected, etc. The number of the second wirings 122 (and the number of the probes 123) of the jig head 12 and the number of the third wirings 132 of the electrical inspection jig connector 13 are reduced according to the product number of the wiring board to be inspected. Therefore, the electrical inspection jig 10 can be easily designed.

(Second Embodiment)
6 and 7 are diagrams showing a schematic configuration of an electric inspection jig according to the second embodiment. FIG. 6 is a plan view when viewed from the upper side of the electrical inspection jig of the present embodiment, and FIG. 7 is a cross-section when the electrical inspection jig shown in FIG. 6 is cut along the line II-II. is there. Since the plan view and the like when the electrical inspection jig of the present embodiment is viewed from below are the same as those of the first embodiment, in the present embodiment, the electrical inspection jig in the present embodiment is used. Only drawings that clarify the characteristics of the jig are shown. For similar and identical components, the same reference numerals are used throughout the drawings.

  As apparent from FIGS. 6 and 7, the electrical inspection jig 20 in the present embodiment has a through-hole 111 </ b> H penetrating in the thickness direction at the approximate center of the first casing 111 in the electrical inspection jig body 11. The screw member 117 is inserted into the through hole 111H. The screw member 117 includes a head portion 117A, a shaft portion 117B, and a screw portion 117C. The head portion 117A is exposed from the upper surface 111C of the first casing 111, and the screw portion 117C is also exposed from the lower surface 111D of the first casing 111. Further, the through hole 111H is defined by a wall surface material that is the cover shaft 118, and the first wiring 113 provided in the first casing 111 is configured not to contact the screw member 117 inserted into the through hole 111H. Has been.

  On the other hand, on the upper surface 131C side of the third housing 131 of the electric jig connector 13, a thicker portion thicker than the other surfaces is formed, and the screw portion 117C of the screw member 117 is formed at the approximate center. A screw hole 131H that is screwed is formed.

  In the present embodiment, the pin-shaped member 115 passes through the flange 114 extending to the opening of the through hole 111H instead of being attached to the lower surface 111D of the first casing 111 of the electrical inspection jig main body 11. It is provided as such. Further, instead of the metal pads 133 of the electrical inspection jig connector 13, metal pins 135 are provided so as to penetrate through the thick part of the upper surface 131 </ b> C of the third housing 131. Similarly to the first embodiment, a plurality of first wires 113 are connected to each pin-shaped member 115, and a plurality of metal pins 135 are connected to a plurality of pins arranged in the third housing 131. Third wirings 132 are connected to each other.

  As in the case shown in FIG. 5, the electrical connection between the first wiring 113 and the third wiring 132 is caused by press contact between the convex portion 115 </ b> A of the pin-shaped jig 115 and the concave portion 135 </ b> A of the metal pin 135. It will be electrically connected. The second wiring 122 and the third wiring 132 in the electrical inspection jig head 12 are electrically connected in the same manner as in the first embodiment. Therefore, electrical connection between the first wiring 113 and the second wiring 122 is performed through the third wiring 132.

  Although not particularly illustrated, the electrical inspection jig main body 11 to the electrical inspection jig head 13 are mechanically connected via an uneven engaging member or the like formed in each housing.

As in the first embodiment, when the pin-like member 115 of the electrical inspection jig body 11 and the metal pad 133 of the electrical inspection jig connector 13 are directly pressed and brought into contact with each other, several tens of the contact portions are brought into contact with each other. A kilogram load is added. As a result, damage to the pin-shaped member 115 and wear of the metal pad 133 are promoted. However, in this embodiment, the pin-shaped member 115 and the metal pin 135 are brought into contact with each other, and the screw member 117 is screwed into the screw hole 131H of the third casing 131 of the electrical inspection jig connector 13. Yes. Therefore, the contact pressure between the pin-shaped member 115 and the metal pin 135 can be reduced, and damage to the pin-shaped member 115 and wear of the metal pin 135 can be suppressed.

  The electrical inspection jig 20 of the present embodiment also includes an electrical inspection jig connector 13 that electrically and mechanically connects the electrical inspection jig main body 11 and the electrical inspection jig head 12. . Therefore, the number of connectors (pins) and first wirings 113 of the electrical inspection jig main body 11 is fixed, the number of second wirings 122 and the number of probes 123 of the electrical inspection jig head 12, and the electrical inspection. Only the number of the metal pins 135 and the number of the third wirings 132 of the jig connection body 13 are changed according to the product number of the wiring board to be inspected, that is, the electric inspection jig head 12 and the electric inspection jig connection. Only the body 13 can be exchanged.

  Therefore, it is not necessary to replace the electrical inspection jig main body 11 according to the product number of the wiring board to be inspected, and the cost required for the electrical inspection of the wiring board can be reduced. In addition, since the number of connectors (pins) of the electrical inspection jig main body 11 and the number of the first wires 113 can be fixed, they are attached to the connectors (pins) of the main body 11 of the used electrical inspection jig 20. The operation of sequentially removing the cables and sequentially attaching them to the connectors (pins) of the main body 11 of the new electrical inspection jig 20 to be used becomes unnecessary. Furthermore, since it is not necessary to replace the electric inspection jig body 11, the alignment of the electric inspection jig with respect to the wiring board to be subjected to electric inspection can be simplified. As a result, the time required to perform the electrical inspection of the wiring board can be greatly shortened.

  In addition, the wiring board that performs the electrical inspection of such a wiring board, specifically, has at least one each of a conductor layer and a resin insulating layer, and is electrically connected to the conductor layer exposed from the opening of the resin insulating layer. Also in the method of manufacturing a wiring board having a metal terminal connected to the wiring board, the time required for electrical inspection of the wiring board can be shortened as described above, so that the time required for manufacturing the wiring board is shortened. be able to.

  Further, in the commercially available electrical inspection apparatus, only the electrical inspection jig main body 11 is provided in advance, and the electrical inspection jig head 12 and the electrical inspection jig connector 13 are separately provided in the product number of the wiring board. Only the electrical inspection jig head 12 and the electrical inspection jig connector 13 can be exchanged according to the product number of the wiring board.

  Accordingly, since only the electrical inspection jig head 12 and the electrical inspection jig connector 13 need be prepared separately according to the product number of the wiring board, the cost for performing the electrical inspection can be reduced, and the electrical inspection jig Since only the head 12 and the electrical inspection jig connector 13 need be stored, the space required for storage can be reduced. Furthermore, it is possible to avoid the risk of discarding existing electrical inspection jigs in order to secure storage space.

  In this embodiment, as is clear from the above description, the number of the first wirings 113 of the electrical inspection jig main body 11, the second wirings 122 of the electrical inspection jig head 12, and the electrical inspection jig connection. The number of the third wirings 132 of the body 13 is the same. However, in general, the number of pins of the connector 112 of the electrical inspection jig main body 11 and the number of the first wirings 113 associated therewith are set to be larger in consideration of the product number of the wiring board to be inspected.

  Therefore, the number of second wirings 122 (and the number of probes) of the electrical inspection jig head 12 and the number of third wirings 132 of the electrical inspection jig connector 13 depend on the product number of the wiring board to be inspected. Will be set to decrease. In this case, in the electrical inspection jig 20 shown in FIGS. 6 and 7, the third wiring 132 of the electrical inspection jig connector 13 is connected to a part of the first wiring 113 of the electrical inspection jig body 11. Will not be.

  The number of pins of the connector 112 of the electrical inspection jig main body 11 and the number of the first wirings 113 associated therewith are set in consideration of the product number of the wiring board to be inspected, etc. The number of second wirings 122 (and the number of probes 123) of the jig head 12 and the number of third wirings 132 (and the number of metal pins 135) of the electrical inspection jig connector 13 are to be inspected. Since it is sufficient to set the number to be reduced according to the product number of the substrate, the electrical inspection jig 20 can be easily designed.

(Third embodiment)
FIG. 8 is a diagram illustrating a schematic configuration of an electrical inspection jig according to the third embodiment. FIG. 8 is a cross-sectional view of an electrical inspection jig corresponding to FIG. 3 in the first embodiment. For similar and identical components, the same reference numerals are used throughout the drawings.

  In FIG. 8, in order to clarify the characteristics of the electrical inspection jig in the present embodiment, the electrical inspection jig body, the electrical inspection jig head, the electrical inspection jig connector, and the electrical inspection jig in the electrical inspection jig. The characteristic inspection jigs are described so as to be separated from each other. However, in actual use, as described in the first embodiment, these elements are used by being electrically and mechanically connected to each other.

  As shown in FIG. 8, the electrical inspection jig 30 of the present embodiment includes an electrical inspection jig body 11, an electrical inspection jig head 12 positioned below the electrical inspection jig body 11, the electrical inspection jig body 11, and the electrical inspection jig. It has an electrical inspection jig connector 13 positioned between the head 12. Further, a plate-like electrical property inspection tool 31 is provided between the electrical inspection tool body 11 and the electrical inspection tool connector 13.

  As in the first embodiment, the electrical inspection jig main body 11 is provided with a plurality of connectors 112 on a pair of side surfaces 111A and 111B opposite to each other on the outer surface of the first housing 111. Are provided with connector pins (not shown) as external connection terminals. As shown below, in this embodiment, since the jig body 11 for electrical inspection is used without replacement even if the product number of the wiring board to be inspected is changed, generally, the wiring board to be inspected is used. The total number of pins of connector 112 is determined taking into account the maximum expected electrical contact point. As an example, the number of pins can be 4096.

  In the first casing 111, a plurality of first wirings 113 are provided that are electrically connected to each of the connector pins and extend to the lower surface 111D side of the first casing 111. . Furthermore, at the lower part of the first casing 111, as shown below, in order to facilitate handling when the electric inspection jig head 12 and the electric inspection jig connector 13 are removed and replaced, or an electric inspection is performed. When the electrical inspection of the wiring board is actually performed using the jig 30, a hook 114 for facilitating fixing to the inspection table is provided. In addition, when fixing the electric inspection jig 30 to the inspection table, for example, the electric inspection jig 30 can be fastened by a bolt and a nut through a through hole (not shown).

  The electrical inspection jig head 12 has a plurality of second wires 122 extending from the upper surface 121C side to the lower surface 121D side in the second casing 121, and the second wires 122 on the lower surface 121C. Plural for inspecting the electrical continuity (cutting of wiring, contact between wirings, etc.) of wiring patterns on the wiring board by making electrical contact with the metal terminals of the wiring board to be inspected and actually contacting each The probe 123 is provided.

  The electric characteristic inspection jig 31 is positioned so as to be sandwiched between the electric inspection jig main body 11 and the electric inspection jig connector 13 described below. In addition, the electrical property inspection jig 31 has a plurality of electrodes 311 which penetrates in the thickness direction and is provided so that the end portion is exposed from the upper surface 31C.

  The number of the plurality of electrodes 311 can be set, for example, to be the same as the number of pins of the first wiring 113 of the electrical inspection jig body 11, that is, the connector 112. Specifically, the number can be 4096.

  The electrical inspection jig connecting body 13 is positioned so as to be sandwiched between the electrical characteristic inspection jig 31 and the electrical inspection jig head 12, and in the third casing 131, from the upper surface 131C side to the lower surface 131D side. The plurality of third wirings 132 that extend and electrically connect at least a part of the plurality of electrodes 311 of the electrical property inspection jig 31 and the plurality of second wirings 122 respectively.

  The electric inspection jig 30 according to the present embodiment includes an electric characteristic inspection jig 31 in addition to the electric inspection jig body 11, the electric inspection jig head 12, and the electric inspection jig connector 13. ing. Therefore, as shown in FIG. 8, a pair of sockets 312 is provided for the electrode 311 of the electrical property inspection jig 31, and a predetermined electrical property measuring device is provided for the lead wires led out from the pair of sockets 312. When the electrical inspection jig 30 is brought into contact with the wiring board to inspect the electrical continuity (cutting of the wiring, contact between the wirings, etc.) of the wiring board, the electrical inspection is performed. It is possible to measure the electrical characteristics between the wiring patterns of the jig 31 in contact with the electrodes 311 to which the pair of sockets 312 are attached.

  Note that examples of the electric characteristics include electric capacity and electric resistance.

  The other features of the electric inspection jig body 11, the electric inspection jig head 12, and the electric inspection jig connector 13 are the same as those in the first embodiment, and thus description thereof is omitted.

  In the electrical inspection jig 30 of the present embodiment, the number of electrodes 311 provided on the electrical property measuring jig 31 is the same as the number of pins of the first wiring 113 of the electrical inspection jig body 11, that is, the connector 112. Since it can be set, the electric inspection jig body 11 and the electric characteristic measurement jig 31 are fixed integrally, the number of the third wirings 132 of the electric inspection jig connection body 13, and the electric inspection. Only the number of probes 123 and the number of second wirings 122 of the jig head 12 are changed according to the product number of the wiring board to be inspected, that is, the electric inspection jig connector 13 and the electric inspection jig head 12. Can only be exchanged.

  Therefore, it is not necessary to replace the electrical inspection jig main body 11 according to the product number of the wiring board to be inspected, and the cost required for the electrical inspection of the wiring board can be reduced. In addition, since the number of connectors (pins) and the number of first wirings 113 of the electrical inspection jig main body 11 and the number of electrodes 311 of the electrical property measuring jig 31 can be fixed, the electrical inspection used The operation of sequentially removing the cable attached to the connector (pin) of the main body 11 of the jig 30 and sequentially attaching the cable to the connector (pin) of the main body 11 of the new electric inspection jig 30 to be used becomes unnecessary. Furthermore, since it is not necessary to replace the electric inspection jig body 11, the alignment of the electric inspection jig with respect to the wiring board to be subjected to electric inspection can be simplified. As a result, the time required to perform the electrical inspection of the wiring board can be greatly shortened.

  Also, in the method of manufacturing a wiring board that performs an electrical inspection of such a wiring board, the time required for the electrical inspection of the wiring board can be shortened as described above, so that the time required for manufacturing the wiring board is reduced. It can be shortened.

  Furthermore, it is not necessary to replace the electrical property measuring jig 31 according to the product number of the wiring board, and even if the electrode 311 to be measured changes for each product number, the connection of the socket and the like connected to the electrical property measuring device is possible. Since it is only necessary to replace the member with the predetermined electrode 311, there is no need to prepare a plurality of jigs 31 according to the product number of the wiring board. Therefore, when measuring the electrical characteristics in addition to the electrical inspection, the cost for the measurement can be reduced.

  Also, in the commercially available electrical inspection apparatus, only the electrical inspection jig main body 11 and the electrical property inspection jig 31 are provided in advance, and the electrical inspection jig head 12 and the electrical inspection jig are added to the product number of the wiring board. A jig connecting body 13 can be provided separately, and only the electric inspection jig head 12 and the electric inspection jig connecting body 13 can be exchanged according to the product number of the wiring board.

  Accordingly, since only the electrical inspection jig head 12 and the electrical inspection jig connector 13 need be prepared separately according to the product number of the wiring board, the cost for performing the electrical inspection can be reduced, and the electrical inspection jig Since only the head 12 and the electrical inspection jig connector 13 need be stored, the space required for storage can be reduced. Furthermore, it is possible to avoid the risk of discarding existing electrical inspection jigs in order to secure storage space.

  The present invention has been described in detail with specific examples. However, the present invention is not limited to the above contents, and various modifications and changes can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10, 20, 30 Electric inspection jig 11 Electric inspection jig main body 111 1st housing | casing 112 Connector 113 1st wiring 115 Pin-shaped member 117 Screw member 118 Cover shaft 12 Electric inspection jig head 121 2nd housing | casing 122 Second wiring 123 Probe 13 Electrical inspection jig connector 131 Third housing 132 Third wiring 133 Metal pad 135 Metal pin 31 Electrical characteristic inspection jig 311 Electrode 312 (Electric characteristic inspection jig) Electrode 312 Socket 313 (for characteristic inspection jig) Lead wire (for electric characteristic inspection jig)

Claims (6)

A plurality of external connection terminals provided on the outer surface of the first housing, and in the first housing, are electrically connected to each of the plurality of external connection terminals, and An electrical inspection jig body having a plurality of first wires extending to the lower surface side;
In the second casing, a plurality of second wirings extending from the upper surface side to the lower surface side, and electrically connected to each of the plurality of second wirings on the lower surface side of the second casing. An electrical inspection jig head having a plurality of probes,
In the third casing sandwiched between the electrical inspection jig main body and the electrical inspection jig head, it extends from the upper surface side to the lower surface side, and at least a part of the plurality of first wirings. An electrical inspection jig connector having a plurality of third wirings that electrically connect each wiring and each of the plurality of second wirings ;
The electrical inspection jig, wherein the electrical inspection jig head and the electrical inspection jig connector are replaceable with respect to the electrical inspection jig body .   2. The electric inspection jig according to claim 1, wherein the number of the second wirings and the number of the third wirings are equal to each other and equal to or less than the number of the first wirings. . The electric inspection jig main body includes a plurality of biasing means electrically connected to the tip portions of the plurality of first wirings at the tip portions on the lower surface side of the first casing. Having a pin-shaped jig,
The electrical inspection jig connector includes a plurality of metal members electrically connected to the tip portions of the top surfaces of the third housings in the plurality of third wirings. And
Each of the plurality of first wirings and each of the plurality of third wirings are electrically connected through an electrical connection between the plurality of pin-shaped jigs and the plurality of metal members. The electrical inspection jig according to claim 1, wherein the jig is for electrical inspection.   Each of the plurality of second wirings in the electrical inspection jig head and each of the plurality of third wirings in the electrical inspection jig connection body is configured to connect the plurality of probes to the second housing. The electrical inspection jig according to any one of claims 1 to 3, wherein the electrical inspection jig is pressed and electrically connected by an internal stress generated when being attached to the lower surface.   An electrical property inspection jig comprising an electrode electrically connected to the first wiring and the third wiring is provided between the electrical inspection jig main body and the electrical inspection jig connector. The electrical inspection jig according to any one of claims 1 to 4, wherein the jig is used for electrical inspection. Producing a wiring board having at least one conductor layer and a resin insulation layer, and having a metal terminal electrically connected to the conductor layer exposed from the opening of the resin insulation layer;
The electrical continuity inspection of the conductor layer is performed by bringing the plurality of probes of the electrical inspection jig according to any one of claims 1 to 5 into contact with the metal terminals of the wiring board. Process,
A method of manufacturing a wiring board, comprising:

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