JPS6367579A - Ic testing device - Google Patents

Abstract

PURPOSE:To easily convert a performance substrate by pressing the performance substrate against spring contact pins connected to a pin electronic substrate by using an operation lever and a link mechanism and connecting them. CONSTITUTION:Lower end parts of the respective spring contact pins implanted in a pin-implanted ring 22 are connected to the wiring pattern (not shown in figure) of a guard board 18 and connected electrically to the pin electronic substrate 12 through connectors 20 and 14. The performance substrate 26 is pressed against the top surface side of the pin-implanted ring 22 by the operation lever and the link mechanism consisting of members 64 and 66, shafts 68 and 70, etc., to connect a contact and (not shown in figure) on the reverse surface of the substrate 26 to the upper end parts of the pins 24. Consequently, no large force is required to attach or detach the performance substrate 26.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an IC test device, and more specifically,
This invention relates to improvements related to the attachment and detachment of performance boards in IC test equipment.

[Prior Art] Generally, in an IC test device, a large number of pin electronics boards are arranged in a part called a test head, and a performance board according to the purpose is electrically connected to the pin electronics board in a replaceable manner. It looks like this.

Traditionally, electrical connections for this performance board are made by manually pressing the performance board onto the pin electronics board and mating the connectors on the pin electronics board with the corresponding connectors on the backside of the performance board. It is structured to do so.

[Problem to be solved] However, in the case of IC test equipment for testing ICs with many pins, the number of pin electronics boards increases significantly, and the number of connectors also increases accordingly, so it takes a large amount of force to insert and remove connectors. Therefore, there is a problem that it is not easy to replace the performance board.

[LJ Object of the Invention Accordingly, an object of the present invention is to provide an IC test device that allows easy replacement of performance boards.

[Means for Solving the Problems] In order to achieve the above object, an IC test device according to the present invention includes a fixed pin mounting body in which a plurality of spring contact pins are mounted, and a pin mounting body in which a plurality of spring contact pins are mounted. means for electrically connecting to the electronics board; and pressing fixing means for pressing the performance board against the spring contact pins of the pin mounting body and fixing the performance board in a state in which the contact pads of the performance board are pressed against the spring contact pins. The pressing and fixing means includes an operating lever and a link mechanism that enhances and converts the rotational force of the operating lever into a pressing force against the performance board.

[Function] As mentioned above, in the IC test device of the present invention, the performance board is pressed against the spring contact pins electrically connected to the pin electronics board,
By pressing the contact pads of the performance board against the spring contact pins, an electrical connection is made between the performance board and the pin electronics board.

With this configuration, almost no force is required to remove the performance board, but the force required for attachment (pressing and fixing) is also reduced compared to the conventional connector connection structure.

Moreover, the means for pressing and fixing the performance board is configured to increase the rotational force of the operating lever using a link mechanism and converting it into pressing force, so it is far more effective than pressing the performance board directly by hand. The performance board can be pressed and fixed with a small amount of operating force.

Therefore, the performance board can be replaced more easily than before.

[Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic vertical cross-sectional view with a part of the test head section of the IC test apparatus of the present invention omitted.

FIG. 2 is a schematic plan view of the head portion.

In FIGS. 1 and 2, reference numeral 10 denotes an outer frame of the test head section, and a large number of pin electronics boards (pin electronics cards) 12 are arranged radially inside the outer frame. Each pin electronics board 12
A connector 14 is attached to the upper end of the connector 14 facing upward.

A base port 16 is made of an aluminum plate or the like, and is fixed to the -L end of the outer frame 10.

A guard board (printed wiring board) 18 is fixed to this base port 16, and a connector 20 that is fitted to the connector 14 of the pin electronics board 12 is provided on the back surface thereof.

A pin planting ring (pin planting body) 22 is attached to the surface of the guard board 18. A large number of spring contact pins 24 are installed in this pin installation ring 22 so as to pass through the front and back sides thereof.

At least one end of the spring contact pin 24 can be moved back and forth in the axial direction, and is biased in the L direction by a built-in spring (not shown).

The lower end of each spring contact pin 24 planted in the pin planting ring 22 is electrically connected to a wiring pattern (not shown) on the guard board 18 by soldering or the like, and is connected to the connector 20 through the wiring pattern. electrically connected. Therefore, connector 20 is
4, each spring contact pin 24 can be electrically connected to the pin electronics board 12.

26 is a performance board (printed wiring board), which needs to be replaced depending on the purpose of the test.

This performance board 26 is pressed and fixed 1 to be described later.
As shown in the figure, the step is pressed against the L side of the pin implant ring 22 and fixed to the base port 16. On the back side of the performance board 26, there is a pin-embedding ring 22.
A contact pad (not shown) corresponding to each spring contact pin 24 is provided, and is pressed against the upper end of the corresponding spring contact pin 24 to be electrically connected to each other.

This connection connects the performance board 26 and the pin electronics board 12 to the spring contact pins 24.
, wiring pattern of guard board 18, and connector 1
They are electrically connected to each other via 4.20.

In addition, for purposes such as positioning the buff T-once board 26, a positioning post 28 is provided protruding from the pin planting ring 22, and a positioning hole that fits with the positioning post 28 is formed in the performance board 26.

As described above, since the performance board 26 is pressed into contact with the spring contact pin 24, the performance board 26 is
The force required for attachment and detachment is small, but in order to further reduce the operating force, the structure of the pressing and fixing means has been devised as described below.

In addition, the guard board 18 and the pin electronics board 1
Since the guard board 18 is connected to the guard board 18 by a connector, a large amount of force is required to attach and detach the guard board 18. However, since the pin planting ring 22 can be configured to be shared by multiple types of performance boards 26, the guard board 18 does not need to be replaced frequently unlike the performance board 26, and there is no particular problem in this respect.

Here, the performance board 26 is fixed by pressing its periphery by a pressing and fixing means to be described later, but if the performance board 26 becomes large, the contact pads of the performance board 26 may warp due to the performance board 26 being warped. Contact with the seven-spring contact pin 24 may become unstable.

Therefore, in this embodiment, the central portion of the performance board 26 is tightened using the fastener 30! It is designed to be tightened onto the pin planting ring 22 from the − side.

This tightening tool 30 has a structure in which a holding ring 32 that comes into contact with the upper surface of the performance board 26 is attached to the lower surface side of the tightening ring 34 so as to be rotatable by a predetermined angle.

The holding ring 32 has a hole (not shown) through which the positioning post 28 can pass.

The clamping ring 34 is bored with an arcuate hole 36 associated with the positioning post 28 . One end 36a of this arcuate hole 36 is enlarged to a size that allows the positioning post 28 to pass through, but the other part is designed to allow the rt passage of the roller 38 attached to the upper end of the positioning post 28. It is so wide that it is not allowed.

Further, a slope portion 40 is formed on the “Y” surface portion along the arcuate hole 36. The slope portion 40 is lowest at one end 36a of the arcuate hole 36 and gradually becomes higher toward the other end.

When tightening the performance board 26, the fastener 30 is placed on the performance board 26 with one end 38a of the arc-shaped hole of the tightening ring 34 aligned with the hole of the holding ring 32, and the hole aligned with the positioning post 28.

Then, when the tightening ring 34 is turned clockwise,
The roller 38 of the positioning post 28 moves along the ramp 40, and the holding ring 32 is gradually pressed against the performance board 26 by the tightening ring 34.

Finally, by rotating the tightening ring 34 to the angle shown in FIG. 2, the performance board 28 is sufficiently tightened to the pin planting ring 22, and the contact pads of the performance board 28 and one end of the spring contact pin 24 are stabilized. It can be pressed against the

When removing the performance board 26, turn the tightening ring 34 in the opposite direction to remove the - end 36 of the arcuate hole 36.
a to match the positioning post 28. In this way, the fastener 30 can be removed upward, and the performance board 26 can be removed by releasing the fixing by the pressing fixing means described later.

Next, the means for pressing and fixing the performance board 26 will be explained. This pressing and fixing means has a basic structure that enhances and converts the turning force of the operating lever into a pressing force of the performance board 26 using a link mechanism. Specifically, as shown in FIG. It consists of an operating unit 46 fixed to the base port 44 and two fixed units 48 fixed to the base port 16. Two sets of these are provided as shown in the figure, but both have the same structure.

FIG. 3 is a partially cutaway schematic plan view of a set of pressing and fixing means, and FIG. 4 is a partially cutaway schematic front view of the pressing and fixing means. The detailed structures of the operating unit 46 and the fixing unit 48 will be described with reference to these figures.

First, regarding the operation unit 46, 50 is an operation lever, which is fixed to a member 52. This member 52 is supported at its intermediate portion by a shaft 56 on a frame 54 fixed to a reinforcing frame 44.
It is possible to move simultaneously using the fulcrum. This frame 54
An escape hole 58 for the rotation of the member 52 is formed at the bottom.

A member 64.6 is attached to each end of member 52 by an axle 60.62.
One end of 6 is attached. Each member 84,86 is paired as shown. At the other end of each member 64.86, the proximal end of the shirt 88.70 is attached to the shaft 7.
2.74.

One end of each of the shafts 72, 74 is guided in a long groove 76, 78 formed in the frame 54 so that it can slide horizontally. Further, the other ends of the shafts 72 and 74 are guided by elongated holes 80 and 82 formed in the frame 54, respectively, so that they can slide in the horizontal direction.

Ends protruding from long holes 80, 82 of each shaft 72, 74;
Tension springs 84, 86 are suspended between the member 52 and the protruding end of the support shaft 56.

The shirt 68.70 is supported by the reinforcing frame 40 at a position near its tip by a bearing 88.94 so that it can move back and forth in the axial direction. And shaft 68
．． Rollers 92 and 94 are attached to the tip of 70.

Next, the structure of the fixing unit 48 will be explained. As shown in the figure, two fixing units 48 are arranged corresponding to each end of the operating unit 46, but the structures of the fixing units 48 on either side are the same except for the orientation.

An inner surface 96 of the upper wall of each fixing unit 48 is a surface that engages the roller 92, and the inner surface thereof is an upwardly inclined surface.

The pressing and fixing of the performance board 26 by the pressing and fixing means having such a structure will be explained below.

The performance board 26 is positioned by the guide post 28 and placed on the pin planting ring 22.

In this state, the operating lever 50 is rotated to a substantially horizontal position as shown. This rotation causes member 64.
As 6B advances outwardly, shaft 68.70 advances outwardly.

The rollers 92 and 94 at the tip of the shaft 8.70 move forward by rolling on the retaining surface 98 of the fixing unit 48, but since the inner part of the retaining surface 96 is an inclined surface, the shaft 88.70 As the shaft advances, the shaft 88, 70 is pushed downwardly through the rollers 92, 94, and as a result, the performance board 26 is forced downwardly.

After passing through the inclined surface portion of the retaining surface 96, the axis 72.74
is locked at one end of the elongated groove 78.78 and the elongated hole 80.82, and the shaft 68.70 cannot advance any further.

In this way, the performance board 26 is pressed and fixed, but since the rotational force of the lever 50 is amplified by the ring mechanism as described above and converted into a pressing force, it can be operated with a considerably smaller force than the pressing force. The lever 50 can be operated.

Note that tightening by the tightening tool 30 described above is performed in this state.

When removing the performance board 26, first remove the fastener 30, and then rotate the operating lever 50 in the opposite direction to a substantially vertical position.

This rotation of the operating lever 50 moves the members 64 , 66 inwardly, so that the shaft 88 , 70 is drawn inward and its rollers 92 , 94 are disengaged from the engagement surface 96 of the fixing unit 48 . Thus, the fixation of the performance board 26 is released, and the performance board 26 can be removed.

Note that due to the tensile force of the tension springs 84, 86, the member 84. ee has shaft 72.74 with long groove 78.78
The operating lever 50 is held in a position where it is engaged with the other end of the elongated hole 80, 82, and therefore the operating lever 50 is held in a substantially vertical position.

Although one embodiment has been described above, the present invention is not limited thereto.

For example, if there is no concern that the contact between the contact pads of the performance board and the spring pins will become unstable due to warping of the performance board, the fastener can be omitted.

In the embodiments described above, the spring contact pins of the pin planting ring are connected to the pin electronics board via the guard board and its connector, but it goes without saying that the connection means can be changed as appropriate.

The structure of the means for pressing and fixing the performance board can also be changed as appropriate.

Further, in the above embodiment, the pin electronics substrates are arranged radially, but the present invention can be similarly applied to cases where the pin electronics boards are arranged linearly in the vertical and horizontal directions.

In addition to the above, the present invention may be modified in various ways without departing from the spirit thereof.

[Effects of the Invention] As explained above, the IC test device according to the present invention includes a fixed pin mounting body in which a plurality of spring contact pins are implanted, and electrically connecting the spring contact pins to a pin electronics board. and the means to
It has a pressing fixing means for pressing the performance board against the spring contact pins of the pin mounting body and fixing the contact pads of the performance board in a pressed state against the spring contact pins. and a link mechanism that enhances and converts the rotational force of the operating lever into a pressing force against the performance board, so the force required to attach and detach the performance board is significantly reduced compared to conventional connector connection structures.

As described above, according to the present invention, an IC test device in which the performance board can be easily replaced can be realized.

[Brief explanation of drawings]

FIG. 1 is a schematic vertical cross-sectional view of a part of the test head section of the IC test device of the present invention, FIG. 2 is a schematic view of the head section, and FIG. FIG. 4 is a partially cutaway schematic front view of the pressing and fixing means. 12... Pin electronics U board, 14... Connector, 16... Base port, 18... Guard board, 20... Connector, 22... Pin planting ring,
24... Spring contact pin, 26... Performance board, 30... Tightener, 46... Operating unit, 48... Fixing unit, 50... Operating lever, 68... Shaft, 92 ... Laura, 96
...Engagement surface.

Claims (1)

[Claims] (1) A performance board is electrically connected to a multiple pin electronics board in a replaceable manner.
C test apparatus comprising a fixed pin implant having a plurality of spring contact pins implanted therein, means for electrically connecting the spring contact pins to the pin electronics board, and the performance board. It has a pressing and fixing means that presses against the spring contact pin and fixes the contact pad of the performance board and the spring contact pin in contact with each other, and the pressing and fixing means has an operation lever and a rotating force of the operation lever. and a link mechanism that increases and converts the pressing force of the performance board into a pressing force of the performance board.