KR101193407B1 - Connector, conductive member, its manufacturing method, performance board, and testing device - Google Patents

Abstract

In the receptacle connector 322 mounted to the board body 310 and to which the coaxial plug 440 is connected, the receptacle connector 322 includes a housing 610 and a plurality of conductive members 500, and each of the conductive members 500 is a coaxial plug. The inner conductor 510 which contacts the signal line of 440, and the outer conductor 520 surrounding the inner conductor 510, and the outer conductor 520 is an inner conductor (when the coaxial plug 440 is connected). It has the shield part 521 which covers the cross section of 444 about the insertion direction and the circumferential part, and the inner conductor 510 is coaxial in the position which deviated to the shielding part 521 side rather than the center of the outer conductor 520. The plug 440 extends in the inserting and detaching direction.

Description

Connector, conductive member, method of manufacturing connector, performance board and test device {CONNECTOR, CONDUCTIVE MEMBER, ITS MANUFACTURING METHOD, PERFORMANCE BOARD, AND TESTING DEVICE}

The present invention relates to a connector, a conductive member, a manufacturing method thereof, a performance board, and a test apparatus. More specifically, the present invention relates to a conductive member having a coaxial structure and a connector having the same.

Patent Literature 1 below describes a structure of a test peak body that forms an electrical connection to a device under test in a semiconductor test system. As described in Patent Document 1, since the test signal transmitted to the device under test has a high frequency, the connection structure of the signal transmission path in the test peak body has a GND pattern and a signal pattern so as to have a specific characteristic resistance. It is formed by combining. As a result, deterioration of the transmitted test signal can be reduced, and a test with high accuracy can be executed.

Patent Literature 2 below describes that a semiconductor test apparatus can be easily corresponded to various devices under test by mounting a motherboard, a socket board, and the like using a connector electrically connected by fitting. As described in Patent Literature 2, in many semiconductor test apparatuses, by forming a signal path of a test signal by an insertable and detachable connector, an expensive semiconductor test apparatus is made to correspond to a device under test and a test having various specifications, thereby providing a test cost. Can be suppressed.

Patent Document 3 described below describes a connector capable of combining a plurality of conductive members in one housing and collectively combining a plurality of signal lines. The coupling group described in Patent Document 3 has a structure in which each of the conductive members can maintain a specific characteristic resistance. As a result, for example, in a semiconductor test apparatus that handles a variety of test signals, realignment of signal lines is facilitated.

In this way, the coupler used in the case of coupling the signal line for transmitting an electrical signal having a high frequency is formed so that the characteristic resistance of the signal line is maintained even in the connector itself. Moreover, in the apparatus which processes several types of signals simultaneously like a semiconductor test apparatus, the connector which can combine or insulate a large number of signal lines collectively is used.

Japanese Patent Laid-Open No. 11-237439 Japanese Patent Publication No. 2003-249322 Japanese Patent Publication No. 2004-355932

In recent years, the scale-up and multifunctionalization of integrated circuits are rapidly progressing, and the number of pins of integrated circuits is increasing. In connection with this, the number of signal lines in a test apparatus for testing an integrated circuit is greatly increasing. Therefore, the connector used therein is also required to have a higher depth.

When the density of the electrically conductive component in a connector is made high, there exists a subject that the signal deterioration in a connector increases, such as the leakage of a signal between adjacent signal lines increases.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, as a 1st Embodiment of this invention, the connector attached to the board | substrate and to which the several coaxial plug is connected is provided, Comprising: It comprises the housing part formed by the dielectric, and the some electrically conductive member accommodated in the housing part. Each of the plurality of conductive members has a shielding wire formed by a conductor and contacting the signal line of the coaxial plug, and a shielding wire formed by a conductor electrically insulated from the signal core wire and surrounding the signal core wire. , The shielding body in the hollow state, the contact portion extending from the shielding body in the inserting / removing direction of the coaxial plug and contacting the shielding line of the coaxial plug, and when the coaxial plug is connected, covering the end face of the shielding line in part of the insertion and circumferential direction. It has a shielding part, and a signal core wire is a contact part which contacts the signal core wire of a coaxial plug, and the center of the shielding main body of a shielding wire. Groups are connected with a core body which extends in the direction of the coaxial plug saptal at position biased to the side portions is provided.

Further, as a second embodiment of the present invention, in a conductive member to which a coaxial plug is connected, a signal core wire formed by a conductor and in contact with a signal line of the coaxial plug and a conductor electrically insulated from the signal core wire are formed of a signal. The shielding wire is provided with a shield wire surrounding the core wire, and the shielding wire extends from the shielding main body in the hollow state, the contact portion extending from the shielding main body in the inserting / removing direction of the coaxial plug, and in contact with the shielding line of the coaxial plug, and the cross section of the shielding line of the coaxial plug. And a shielding portion that covers a part of the circumferential direction, wherein the signal core wire is a contact portion in contact with the signal core wire of the coaxial plug, and a core wire extending in the inserting / removing direction of the coaxial plug at a position biased toward the shielding portion side from the center of the shielding body of the shielding wire. A conductive member having a body is provided.

Furthermore, as a third embodiment of the present invention, in the method of manufacturing a connector to which a plurality of coaxial plugs are connected, the conductor having a contact portion in contact with the shielding line of the coaxial plug, and a core wire body extending in the detachable direction of the coaxial plug, Attaching an insulating resin to the core body of the signal core wire formed by the step; a hollow shielding body; a contact portion extending from the shielding body in the inserting / removing direction of the coaxial plug to contact the shielding line of the coaxial plug; and shielding of the coaxial plug Inserting a signal core wire with resin to the core wire body of the shield wire formed by the conductor having a shielding portion covering the cross section of the wire with respect to the insertion and removal directions and a part of the circumferential direction; Inserting a shielding body into which a signal core wire is inserted, into a hole formed in a housing formed of an insulating resin; A manufacturing method is provided.

Further, as a fourth embodiment of the present invention, a pin is mounted on a motherboard that is detached from a test head having pin electronics that generates a test signal for supplying a device under test and also evaluates a test signal received from the device under test. In a performance board having a connector electrically connected to electronics, the connector includes a housing portion formed of a dielectric and a plurality of conductive members housed in the housing portion, each of the plurality of conductive members being formed of a conductor. And a shielding wire formed by a signal core wire in contact with the signal wire of the coaxial plug, and a conductor electrically insulated from the signal core wire and surrounding the signal core wire, wherein the shielding wire is a hollow shielding body, and detachment of the coaxial plug from the shielding body. In contact with the shielded wire of the coaxial plug and extended in the direction Has a shielding portion that covers the cross section of the shielding line in a part of the insertion and detachment direction and the circumferential direction, and the signal core wire is a coaxial plug at a contact portion that contacts the shield wire of the coaxial plug, and a position biased toward the shielding side rather than the center of the signal core wire of the shield wire. There is provided a performance board having a core body extending in the inserting / removing direction thereof.

Furthermore, as a fifth embodiment of the present invention, a test head having pin electronics for generating a test signal for supplying a device under test and evaluating a test signal received from the device under test, and a connector electrically connected to the pin electronics And a coaxial cable for connecting one end to a socket board disposed at a position opposite to the motherboard to be detached from the test head and to the position under which the device under test is transported, having a performance board having A test apparatus for testing a test device, wherein the connector includes a housing portion formed of a dielectric and a plurality of conductive members housed in the housing portion, each of the plurality of conductive members being formed of a conductor to form a signal line of a coaxial plug. Formed by a signal core in contact with and a conductor electrically insulated from the signal core The shielding wire has a shield wire surrounding the arc core wire, and the shielding wire extends from the shielding main body in the hollow state, the contact portion extending from the shielding main body in the inserting / removing direction of the coaxial plug, and contacts the shielding wire of the coaxial plug; It has a shielding part which covers a part of insertion and removal direction and the circumferential direction, and a signal core wire is extended in the removal direction of a coaxial plug in the contact part which contacts the signal core wire of a coaxial plug, and the position which is biased to the shield part side rather than the center of the shield main body of a shield wire. A test apparatus having a core wire body is provided.

In addition, the summary of the said invention does not enumerate all of the required characteristic of this invention. In addition, subcombinations of these groups of features can also be invented.

FIG. 1: is a figure which shows typically the whole structure of the test apparatus 100. As shown in FIG.
2 is a partially enlarged view of the test head 130.
3 is a perspective view of the performance board 300.
4 is a vertical sectional view of the performance board 300.
5 is a partially enlarged view of the periphery of the plug connector 222.
FIG. 6 is a side view showing the plug connector 222 alone seen from the side.
7 is a plan view showing the plug connector 222 looking down from above.
8 is an enlarged view of the coaxial plug 440 alone.
9 is a view showing a state where the coaxial plug 440 is viewed from a direction perpendicular to the ground.
FIG. 10 is a view illustrating a receptacle connector 322 coupled with a plug connector 222 viewed from the board body 310 side.
FIG. 11 is a bottom view illustrating the shape of the bottom surface of the receptacle connector 322.
12 is a side view illustrating an installation structure of the board body 310 of the receptacle connector 322.
13 is a perspective view illustrating the structure of the conductive member 500.
14 is a diagram illustrating a method of manufacturing the conductive member 500.
15 is a longitudinal cross-sectional view of the conductive member 500.
16 is a horizontal cross-sectional view of the conductive member 500.
17 is a perspective view partially showing a structure near the upper end of the conductive member 500.
18 is an enlarged perspective view of an inner shape of the receiving hole 630 of the housing 610.
19 is a perspective view schematically showing the electrical structure of the receptacle connector 322 mounted to the board body 310.
20 is an enlarged view of the shape of the guide hole 640 formed on the lower surface of the housing 610.
FIG. 21 is a cross-sectional view of the receptacle connector 322 cut away from the plane perpendicular to the ground of FIG. 23.
22 is a cross-sectional view illustrating an internal state of the receptacle connector 322 coupled to the plug connector 222.

Hereinafter, the present invention will be described through examples of the invention, but the following examples do not limit the invention according to the claims. Moreover, not all combinations of the features described in the examples are essential to the solution of the invention.

Example 1

FIG. 1: is a figure which shows typically the whole structure of the test apparatus 100 equipped with the receptacle connector 322 mentioned later. As shown in the figure, the test apparatus 100 includes a test for carrying out tests on a handler 150 for transporting the device under test 152 and a device under test 152 transported by the handler 150. The head 130 and a main frame 110 for comprehensively controlling the operation of the handler 150 and the test head 130. In addition, these handlers 150, test head 130 and main frame 110 are coupled to each other by cable 120.

The test head 130 accommodates the plurality of pin electronics boards 134 in the case 132. The pin electronics board 134 generates a test signal to be transmitted to the device under test 152 under the instruction from the main frame 110. In addition, the test signal transmitted and processed to the device under test 152 is received to evaluate the function and characteristics of the device under test 152.

In addition, the performance board 300 equipped with the device socket 140 is mounted on the upper surface of the test head 130. The device under test 152 transported by the handler 150 is mounted to the device socket 140 to thereby be electrically coupled with the test head 130. This allows the test head 130 to transmit and receive electrical signals to the device under test 152.

In the test head 130 as described above, when the specification of the device under test 152 provided for the test is changed or when there is a request to switch the device under test 152 to another variety, the performance board By replacing the device socket 140 with the 300, the device under test 152 having different specifications can be tested using the same test head 130. Thereby, the utilization efficiency of the expensive test apparatus 100 can be improved.

FIG. 2 is a partially enlarged view of the upper portion of the test head 130 in the test apparatus 100 described above. As shown in the figure, the test head 130 accommodates a plurality of pin electronics boards 134 in the case 132. On the other hand, the performance board 300 to be described later is mounted on the interface plate 200 formed on the upper surface of the case (132).

The interface plate 200 includes a plate-shaped plate body 210 and a plug connector 222 attached to the plate body 210. The plug connector 222 is connected to the pin electronics board 134 via the coaxial cable 136 and the terminal plate 138. In addition, each of the plug connectors 222 has a plurality of coaxial plugs 440 (see FIGS. 8 and 9) individually connected to the pin electronics board 134. These plurality of coaxial plugs 440 are collectively coupled to the plurality of conductive members 500 of the receptacle connector 322 described later.

3 is a perspective view of a performance board 300 mounted with respect to the interface plate 200 as described above. As shown in the figure, the performance board 300 includes a board main body 310 in a disc state, and a device socket 140 mounted at approximately the center of the upper surface thereof.

The board body 310 can be formed using, for example, an electric circuit board material. As a material for an electric circuit board, a paper phenol substrate, a paper epoxy substrate, a glass epoxy substrate, a fluororesin substrate, etc. are known, and what has a certain bending rigidity and insulation is applicable suitably. In addition, the performance board 300 includes a single device socket 140, but there is also a performance board 300 including a plurality of device sockets 140.

The device socket 140 has a terminal (not shown) disposed corresponding to the connection terminal of the device under test 152, and forms an electrical connection by contacting the device under test 152 from above. In addition, on the upper surface of the board main body 310, signal lines 341 and 342 serving as paths for the test signals extend radially about the device socket 140.

Furthermore, vias 343 and 344 are formed around the device socket 140 to penetrate the board body 310. The signal lines 341 and 342 are connected to the bottom surface of the board main body 310 via these vias 343 and 344. The signal lines 341 and 342 may be microstrip lines formed on the board body 310. In FIG. 3, one signal line 341 and 342 is shown, respectively, but in practice, the signal lines 341 and 342 increase in accordance with the number of terminals of the device under test 152 to form a plurality of signal lines consisting of tens to hundreds.

4 is a vertical cross-sectional view of the performance board 300 shown in FIG. As shown in the figure, an outer circumferential member 312 including a receptacle connector 322 is attached to the lower periphery of the board main body 310. The outer circumferential member 312 reinforces the mechanical strength of the board body 310, and guides and positions each member.

In addition, the receptacle connector 322 is attached to the lower periphery of the board main body 310 via the outer peripheral member 312. The receptacle connector 322 is disposed directly below the vias 343 and 344 and is electrically connected to the lower ends of the vias 343 and 344. Upper ends of the vias 343 and 344 are electrically connected to the device socket 140 via the signal lines 341 and 342. Thus, device socket 140 and receptacle connector 322 are electrically connected to each other.

As described above, the performance board 300 has a device socket 140 capable of mounting the device under test 152 on its upper surface and a receptacle connector 322 electrically connected to the device socket 140 on its lower surface. do. Therefore, the device under test 152 attached to the device socket 140 can be connected from the lower side to the outside.

FIG. 5 is a partially enlarged view of the periphery of the plug connector 222 in the interface plate 200 facing the receptacle connector 322 of the performance board 300. As shown in the figure, the plug connector 222 is fixed to the plate body 210 via a rigid support frame 212.

From below the plug connector 222, it is coupled to an internal coaxial plug 440 so that a plurality of coaxial cables 136 extends downward. In addition, the top surface of the plug connector 222 has a shape complementary to the receptacle connector 322 of the performance board 300. Thereby, the electrical connection is formed by fitting the plug connector 222 with the receptacle connector 322.

As already explained, the plug connector 222 is connected to the pin electronics board 134. Therefore, the signal line to the pin electronics board 134 is formed with respect to the device under test 152 mounted in the device socket 140 of the performance board 300 mounted on the interface plate 200.

In addition, the test signal used for the test of the device under test 152 may include a high frequency signal ranging from MHz to GHz. Therefore, even in the signal line formed by the combination of the plug connector 222 and the receptacle connector 322, such a high frequency signal may flow.

FIG. 6 is a side view showing the plug connector 222 alone and seen from the side. As shown in the figure, the plug connector 222 is formed around the housing 410 formed of an insulating resin or the like. From the upper surface of the housing 410, a pair of adjustment pins 420 and a plurality of outer conductors 442 protrude upwards (all of the outer conductors 442 are not shown).

Also, from the lower surface of the housing 410, a number of coaxial cables 136 extend downwards (all of the coaxial cables 136 are not shown). Furthermore, a pair of brackets 430 are mounted on the side of the housing 410. In the vicinity of the lower end of each bracket 430, a screw hole 414 is formed through which a screw is inserted when the plug connector 222 is attached to the support frame 212 described above.

FIG. 7 is a plan view showing the plug connector 222 shown in FIG. 6 looking down from above. As shown in the figure, the housing 410 of this plug connector 222 is formed by one housing portion 411, 413 integrally formed. Convex portions 412 are periodically formed on the side surfaces of each of the housing portions 411 and 413, and are positioned to fit each other when the other plug connector 222 is disposed adjacent thereto.

In addition, each of the housing portions 411 and 413 is provided with a plurality of through holes perpendicular to the upper surface thereof. In each of the through holes, a coaxial plug 440 is accommodated.

8 is an enlarged view of the coaxial plug 440 alone. 9 is a view showing a state where the coaxial plug 440 is viewed from a direction orthogonal to the surface of FIG. 8.

As shown in this figure, the coaxial plug 440 includes an outer conductor 442 and an inner conductor 444 mounted to an end of the coaxial cable 136. The outer conductor is mounted on the braided wire 135 exposed near the end of the coaxial cable 136 from the outside. Meanwhile, the inner conductor 444 is electrically coupled to the core wire 137 of the coaxial cable 136 via the relay conductor 448.

By the above structure, the coaxial structure of the coaxial cable 136 is maintained up to the tip of the coaxial plug 440. Therefore, the characteristic resistance over the entire length of the coaxial plug 440 is kept constant, so that the high frequency signal can be propagated without deterioration.

In the middle of the outer conductor 442, a locking cage 446 slightly bent on the outside is formed. As a result, the coaxial plug 440 inserted into the through holes of the housing portions 411 and 413 is prevented from being dragged by the coaxial cable 136.

FIG. 10 is a view showing the receptacle connector 322 coupled to the plug connector 222 shown in FIGS. 6 and 7 seen alone from the board main body 310 side of the performance board 300. As shown in the figure, the receptacle connector 322 is also formed around the resin housing 610.

The housing 610 is provided with a receiving hole 630 corresponding to the number and arrangement of the coaxial plugs 440 of the plug connector 222. In each of the receiving holes 630, the conductive member 500 is accommodated. Moreover, the screw hole 620 is arrange | positioned instead of one part of the accommodation hole 630. Furthermore, a pair of adjustment pins 622 are also disposed at the corners of the upper surface of the housing 610.

11 is a bottom view illustrating the receptacle connector 322 raised from the bottom. As shown in the figure, guide holes 642 and 644 for inserting the outer conductor 442 and the inner conductor 444 of the plug connector 222 are regularly opened in the lower surface of the housing 610. The lower end of the screw hole 620 is also opened. Furthermore, a guide hole 650 is also formed to fit with the positioning pin 420 of the plug connector 222.

12 is a side view showing the installation structure of the board body 310 of the receptacle connector 322. As shown in the figure, a through hole 313 corresponding to the screw hole 620 of the housing 610 is formed in the board main body 310. Thereby, the housing 610 can be fixed with respect to the board main body 310 using a screw, a rivet, etc.

In addition, near the both ends of the housing 610, a pair of positioning pin 622 protrudes upwards. By inserting such an adjustment pin 622 into the guide hole 311 formed in the board main body 310, the receptacle connector 322 can be easily and reliably positioned with respect to the board main body 310. FIG.

Furthermore, contact legs 512 and 522 (see FIG. 17) protruding from the upper end of the conductive member 500 on the upper surface of the housing 610. The contact legs 512 and 522 contact the pad 319 (see FIG. 19) formed on the lower surface of the board main body 310 to form an electrical connection between the conductive member 500 and the board main body 310. .

FIG. 13 is a perspective view showing the structure of the conductive member 500 mounted to the receptacle connector 322. As shown in the figure, the conductive member 500 has a cylindrical outer conductor 520 and an inner conductor 510 disposed therein.

The outer conductor 520 has a tubular body portion 524 having an octagonal cross-sectional shape, a pair of contact legs 522 formed on an upper surface thereof, and a pair of contact portions 526 extending downward from the lower end thereof. Has Moreover, the notch part 523 which inserts the connection part 612 which is a part of housing 610 mentioned later is formed in the lower end of a main body part.

On the other hand, the inner conductor 510 extends over the entire length of the outer conductor 520 while being electrically separated from the outer conductor 520 by the insulating member 530. A contact leg 512 is also formed on an upper end of the inner conductor 510. Also, at the lower end of the inner conductor, a pair of contact portions 516 extend downward.

14 is a diagram illustrating a method of manufacturing the conductive member 500. As shown in the figure, the inner conductor 510 and the outer conductor 520 are each produced separately.

The outer conductor 520 is formed into a cylindrical shape by bending a member bored from one conductor plate by pressing. Here, in the butt portion 525 formed in the main body portion 524 of the outer conductor 520, mutually complementary irregularities are formed to be alternately fitted. This prevents the butt portion 525 from being opened by the spring back and prevents the signal from leaking from the gap between the butt portions 525 by electromagnetic radiation.

The inner conductor 510 is also formed by bending a member bored from one conductor plate by pressing. The illustrated inner conductor 510 has a U-shaped cross-sectional shape with one surface open. In addition, an insulating member 530 formed of an insulating resin is attached to the inner conductor 510. The insulating member 530 has a shape which is imitated to the inner surface shape of the main body 524 of the outer conductor 520.

As described above, the inner conductor 510 on which the insulating member 530 is mounted is inserted into the outer conductor 520, as indicated by arrow I in the figure. In this way, the conductive member 500 of the coaxial structure shown in FIG. 13 is produced.

In addition, the handle portion 528 is integrally formed on the upper end of the outer conductor 520. Similarly, the handle portion 518 is also formed under the inner conductor. These are sites used temporarily in the case of operating the outer conductor 520 in molding and assembling, and are removed from the finished product.

15 is a longitudinal cross-sectional view of the conductive member 500. As shown in the figure, the inner conductor 510 is fixed inside the outer conductor 520 in a state insulated from the outer conductor 520 by the insulating member 530. At this time, since the upper end of the insulating member contacts the locking cage 527 formed on the inner surface of the outer conductor 520, the inner conductor is positioned at a predetermined relative position with respect to the outer conductor 520. In addition, in the figure, although the contact leg 512 of the inner conductor 510 overlaps with the contact leg 522 of the outer conductor 520, as described below, they are spaced vertically with respect to the ground.

A portion of the insulating member 530 forms a six foot portion 532. As a result, part of the inner conductor 510 and the outer conductor 520 uses air as the dielectric, and the dielectric constant is improved. Thus, the inner conductor 510 and the outer conductor 520 form a coaxial line with the desired characteristic resistance.

In addition, the outer conductor 520 is inserted with respect to the contact portion 526 such that the notched portion 523 is located on the left side of the figure. On the other hand, in the right side of the figure with respect to the contact part 526, the main-body part 524 extends below and the shielding part 521 is formed. When the conductive member 500 is coupled with the coaxial plug 440 as described below, in the notch portion 523, the lower end of the main body portion 524 is higher than the outer conductor 442 of the coaxial plug 440. Located in On the other hand, in the shielding part 521, the lower end of the main body part 524 extends below the upper end of the outer conductor 442 of the coaxial plug 440.

In addition, as the inner conductor 510 moves upward from the contact portion 516, the width in this cross section is gradually narrowed. Incidentally, the inclined surface 514 formed by narrowing the width is formed only on the left side of the inner conductor 510 in the figure. As a result, the electromagnetic center of the inner conductor 510 is biased toward the right side in the drawing as it goes upward.

FIG. 16 is a horizontal cross-sectional view of the conductive member 500 in the plane indicated by dashed-dotted lines A in FIG. 15. As shown in the figure, the inner conductor 510 has a U-shaped horizontal cross-sectional shape, and its effective center is biased in the upper part of the figure.

For this reason, paying attention to the electric field generated by the electric signal flowing through the inner conductor 510, the electric field concentrates in the upper part of the figure in which the outer conductor 520 and the inner conductor 510 form a narrow space | interval d. On the other hand, in the lower part of the figure in which the outer conductor 520 and the inner conductor 510 form a wide space | interval D, an electric field becomes thin.

On the other hand, the outer conductor 520 is a region in which the outer conductor 520 and the inner conductor 510 are concentrated at a narrow distance d, with respect to a part of the removal direction and the circumferential direction by the shielding portion 521. Cover up. As a result, the electromagnetic radiation from the concentrated electric field can be effectively shielded.

On the other hand, on the side where the notched portion 523 of the outer conductor 520 is formed, as shown in FIG. 15, between the outer conductor 442 of the coaxial plug 440 and the main body portion 524 of the outer conductor 520. There is a gap. However, since the outer conductor 520 and the inner conductor 510 form a wide gap D and there is little electromagnetic radiation in the region where the electric field is scarce, from the coaxial line formed by the outer conductor 520 and the inner conductor 510. The electromagnetic wave radiated to the outside is also weak.

With this structure, when the coaxial plug 440 and the conductive member 500 are connected, it is possible to effectively shield the signal leaking from the junction to the outside. Therefore, crosstalk between signal lines can be reduced. In other words, the density in the case of arranging the plurality of conductive members 500 can be made high.

17 is a perspective view partially showing a structure near the upper end of the conductive member 500. As shown in the figure, the contact legs 512 of the inner conductor 510 are fitted to the contact legs 522 of the outer conductor 520 and are spaced apart from each other. Therefore, the upper end of the conductive member 500 can be brought into contact with the horizontal board body 310 to form an electrical connection. Also in this portion, the characteristic resistance of the signal line does not change significantly.

18 is an enlarged perspective view of an inner shape of the accommodation hole 630 formed in the housing 610. As shown in the figure, a receiving hole 634 having an octagonal shape complementary to the outer conductor 520 of the conductive member 500 is regularly arranged on the upper surface of the housing 610. Moreover, inside the accommodating hole 634, the small accommodating hole 632 which can insert the contact part 516 of the inner conductor 510 is also formed. Moreover, at the bottom of the receiving holes 632 and 634, a part of the guide holes 642 and 644 for inserting the outer conductor 442 and the inner conductor 444 of the coaxial plug 440 are visible.

19 is a perspective view schematically showing an electrical structure when the receptacle connector 322 having the plurality of conductive members 500 is attached to the board main body 310 of the performance board 300. As shown in the figure, a plurality of pads 319 corresponding to the contact legs 512 and 522 of the conductive member 500 are formed on the lower surface of the board main body 310. Therefore, the upper end of the conductive member 500 shown in FIG. 17 can contact the board main body 310 from below, and the conductive member 500 and the board main body 310 can be electrically connected.

20 is an enlarged view of the shape of the guide hole 640 formed on the lower surface of the housing 610. As shown in the figure, guide holes 642 and 644 which are opened concentrically are regularly arranged on the lower surface of the housing 610.

Here, each of the guide holes 642 and 644 has a tapered inner surface shape so that both of them are widest at the lower surface of the housing 610 and narrower toward the inner side. As a result, when the plug connector 222 is engaged, the outer conductor 442 and the inner conductor 444 of the coaxial plug 440 are smoothly introduced into the receptacle connector 322 and at the same time, the contacts 516 and 526. Good contact with.

FIG. 21 is a cross-sectional view of the conductive member 500 accommodated in the housing 610 in the same cross section as in FIG. 15. As shown in the figure, the effective center of the inner conductor 510 is disposed to the right side on the figure. On the other hand, since the outer conductor 520 has a shielding portion 521 which covers the area where the inner conductor 510 approaches and the electric field concentrates, the signal leaking from the connection to the outside by electromagnetic radiation is reliably shielded. Therefore, the conductive member 500 can be disposed at a high density without deteriorating the signal.

On the other hand, the notch part 523 is formed in the outer conductor 520 in the area | region where an electric field is scarce and there is little signal leakage to the outside. As a result, a gap is formed between the outer conductor 442 of the coaxial plug 440 and the outer conductor 520 of the conductive member 500 in a part of the insertion and removal direction and the circumferential direction. Therefore, the connection part 612 which supports the resin which forms the inner guide hole 642 from the housing 610 can be formed.

FIG. 22 is a cross-sectional view showing a state of the conductive member 500 when the receptacle connector 322 formed by using the housing 610 as described above is combined with the plug connector 222. As shown in the figure, the outer conductor 442 and the inner conductor 444 of the coaxial plug 440 guided to the guide holes 642 and 644 and plunged into the inside of the housing 610 are each a conductive member ( The contacts 526 and 516 of 500 are electrically connected in contact with each other. Therefore, a coaxial line is formed also at the junction of the plug connector 222 and the receptacle connector 322, and can propagate a high frequency signal without degrading it.

As mentioned above, although this invention was demonstrated using the Example, the technical target range of this invention is not limited to the range as described in the said Example. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiments. It is evident from the description of the claims that the embodiments added with similar changes or improvements are included in the technical target range of the present invention.

100: test apparatus 110: mainframe
120: cable 130: test head
132: case 134: pin electronics board
135: braided wire 136: coaxial cable
137: core wire 138: terminal plate
140: device socket 150: handler
152: device under test 200: interface plate
210: plate body 212: support frame
222: plug connector 300: performance board
310: board body 311, 640, 642, 644, 650: guide hole
312: outer peripheral member 319: pad
322: receptacle connector 341, 342: signal line
343, 344: Via 410, 610: Housing
411, 413: housing portion 412: convex portion
414, 566: screw holes 420, 622: adjustment pin
430 bracket 440 coaxial plug
442: outer conductor 444: inner conductor
446: Gyejojo 448: relay conductor
500: conductive member 510: inner conductor
512, 522: contact leg 514: inclined surface
520: outer conductor 521: shield
523: notch portion 524: body portion
516, 526: contact portion 530: insulating member
518, 528: handle portion 525: butt portion
527: Gyejijo 532: foot
620: screw hole 630, 632, 634: receiving hole
612 connection

Claims (9)

In the connector which is mounted on a board and connected with a plurality of coaxial plugs,
A housing portion formed of a dielectric,
A plurality of conductive members accommodated in the housing part;
Each of the plurality of conductive members is formed of a conductor, a signal core wire contacting the signal line of the coaxial plug, and a shield wire formed by a conductor electrically insulated from the signal core wire to surround the signal core wire in a cylindrical shape. Have,
The shielding line is a hollow main shielding body, a contact portion which extends from the shielding body in the inserting / removing direction of the coaxial plug and contacts the shielding line of the coaxial plug, and the cross section of the shielding line when the coaxial plug is connected. Has a shield that covers a part of the insertion and removal direction and the circumferential direction,
And the signal core wire has a contact portion in contact with the shield wire of the coaxial plug, and a core wire body extending in the inserting / removing direction of the coaxial plug at a position biased toward the shielding portion side from the center of the shielding body of the shielding wire.
The method of claim 1,
And the shielding line of the conductive member further has a substrate-side contact portion which extends from a position biased toward the shielding side at the side end of the substrate and contacts the substrate.
The method of claim 1,
The core wire main body of the signal core of the conductive member has a U-shaped cross section orthogonal to an insertion direction of the coaxial plug, and has a narrow width such that the width of the opposing face of the U-shape is close to the substrate. coupler.
delete The method of claim 1,
And a portion of the housing supporting the conductive member is recessed into a region of the shielding line facing the shielding portion with respect to the circumferential direction. In the conductive member to which a coaxial plug is connected,
A signal core wire formed by a conductor and in contact with the signal wire of the coaxial plug;
A shielding wire formed by a conductor electrically insulated from the signal core wire and surrounding the signal core wire in a tubular shape;
The shielding line includes a shielding body in a hollow state, a contact portion extending from the shielding body in the inserting / removing direction of the coaxial plug to contact the shielding line of the coaxial plug, and a cross section of the shielding line of the coaxial plug in a detaching direction and a circumference. Has a shield that covers a part of the direction,
The signal core wire has a contact portion in contact with the shield wire of the coaxial plug, and a conductive member having a core wire body extending in the inserting / removing direction of the coaxial plug at a position biased toward the shielding part side from the center of the shielding body of the shielding wire. .
In the manufacturing method of the connector with which a some coaxial plug is connected,
Attaching an insulating resin to the core wire body of a signal core wire formed by a conductor having a contact portion in contact with the shield wire of the coaxial plug, and a core wire body extending in the inserting / removing direction of the coaxial plug;
A shield body in a hollow state, a contact portion extending from the shield body in the inserting / removing direction of the coaxial plug to contact the shielding line of the coaxial plug, and a cross section of the shielding line of the coaxial plug with respect to a part of the removing direction and the circumferential direction. In the shielding line of the cylindrical shielding line formed by the conductor having the shielding portion, the signal core wire with resin attached to the core wire main body on the shielding side rather than the center of the shielding main body of the shielding wire. Inserting to be placed in a biased position;
And inserting the shielding body into which the signal core wire with resin is attached to the core wire body is inserted into a hole formed in a housing formed of an insulating resin.
A connector mounted on a motherboard detachably mounted to a test head having pin electronics for generating a test signal for supplying the device under test and evaluating a test signal received from the device under test, and having a connector electrically connected to the pin electronics. In the performance board,
The connector,
A housing portion formed of a dielectric,
A plurality of conductive members accommodated in the housing,
Each of the plurality of conductive members is formed of a conductor and has a shielding wire formed by a conductor in contact with the signal line, and a conductor electrically insulated from the signal core wire and surrounding the signal core wire in a tubular shape,
The shielding line extends from the shielding main body in the hollow state, the contact portion extending from the shielding body in the inserting / removing direction of the coaxial plug to contact the shielding line of the coaxial plug, and the end face of the shielding line when the plug is connected. Has a shield that covers a part of the circumferential direction,
The signal core wire has a performance board including a contact portion in contact with the shield wire of the coaxial plug, and a core wire body extending in the inserting / removing direction of the coaxial plug at a position biased toward the shielding part side from the center of the shielding body of the shielding wire. .
A test head having pin electronics for generating a test signal for supplying the device under test and evaluating a test signal received from the device under test,
A motherboard having a performance board having a connector electrically connected to the pin electronics and detachable from the test head;
A test apparatus for testing a device under test, comprising a coaxial cable for connecting one end to a socket board disposed at a position opposite to a position where the device under test is transported, and connecting the other end to the connector.
The connector,
A housing portion formed of a dielectric,
It has a plurality of conductive members accommodated in the housing portion,
Each of the plurality of conductive members is formed of a conductor and has a shielding wire formed by a conductor in contact with the signal line, and a conductor electrically insulated from the signal core wire and surrounding the signal core wire in a tubular shape,
The shielding wire is inserted into and removed from the shielding main body in a hollow state, a contact portion extending from the shielding body in the inserting / removing direction of the coaxial plug and contacting the shielding wire of the coaxial plug, and when connected to the coaxial plug. Has a shield covering about part of the direction and the circumferential direction,
The said signal core wire has a contact part which contacts the said shielding line of the said coaxial plug, and the core wire main body extended in the removal direction of the said plug at the position which is biased to the said shielding part side rather than the center of the said shielding main body of the said shielding wire.

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