KR100352609B1 - Contact device for tester handler - Google Patents

Abstract

The present invention relates to a device contact device of a horizontal handler that contacts a device such as μBGA produced in a manufacturing process to a socket installed in a tester handler. The present invention provides a horizontal and vertical motion of a pusher that presses a device directly on a socket. Installed so that the picker only serves to transport the device, and the device loaded into the socket allows the pusher to always electrically connect with the terminals of the socket at a constant pressing force.

To this end, a through hole 7a is formed so that the terminal 1a of the socket 1 is exposed upward, and an installation plate 7 provided with a stopper 7b on one side thereof, and horizontally movable on the installation plate. A slider 8 provided, an elevating member 12 mounted on the slider so as to elevate, a pusher 14 fixed to the bottom of the elevating member to press a device loaded in the socket, and between the slider and the elevating member. A plurality of links 11 hinged to each other to switch the linear movement of the slider to the vertical movement of the slider, an elastic member 15 installed between the slider and the lifting member to restore the lifting member, and the mounting plate. The fixed means is made of a drive means 16 for moving the slider forward and backward.

Description

Device contact device for horizontal tester handlers {CONTACT DEVICE FOR TESTER HANDLER}

The present invention relates to a horizontal tester handler for testing a device having a relatively narrow pitch ball bumper, such as μBGA produced in a manufacturing process, and more particularly, to a device loaded into a socket. It relates to a device contact device of a horizontal handler that allows the ball bumper to more stably contact the terminal of the socket.

FIG. 1 is a longitudinal sectional view schematically showing a conventional apparatus, and a guider 3 for stably loading a device 2 to be tested in the socket is installed on the upper side of the socket 1 to be manufactured and loaded. In order to test the device contained in the negative tray, one picker 4 moves to the loading side along the X-Y axis.

In this way, after the picker 4 moves to the loading side, the cylinder 5 is driven down to the bottom dead center to hold one device from the tray and then to the top dead center by re-driving the cylinder.

After that, the picker 4 moves along the X-Y axis to the upper side of the socket 1 and when the cylinder 5 is driven, the holding device is loaded into the socket 1, and the loaded device is a picker ( The device is tested for a set time while 4) is pressed, and the picker classifies the tested device into the tray of the unloading unit according to the result.

However, this conventional device has the following problems.

First, since the device 2 loaded in the socket 1 is tested for a predetermined time while the picker 4 is pressed, the time required for the test is delayed and productivity is lowered.

Second, as the utilization rate of expensive equipment is lowered, it is a factor to increase production costs.

Third, the device 2 held in the picker 4 is electrically connected to the socket 1 according to the driving of the cylinder 5 which pushes the picker 4. The defective product is judged to be a defective product, and on the contrary, when the pressing force is set large, the ball bumper is damaged or the terminal of the expensive socket 1 is broken.

The present invention has been made to solve such a problem in the prior art, by installing a pusher for pressing the device in the upper portion of the socket to enable horizontal and vertical movement so that the picker only serves to transport the device and loading in the socket The purpose of the device is to enable the pusher to always electrically connect with the terminals of the socket at a constant pressing force.

Another object of the present invention is to cycle the test time by holding the device to be tested at the loading unit while the picker transfers the tested device to the unloading side while testing the device loaded in the socket. To significantly reduce the

According to an aspect of the present invention for achieving the above object, a through-hole is formed so that the terminal of the socket is exposed to the upper side, the mounting plate is provided with a stopper on one side, the slider provided to be movable horizontally on the mounting plate, An elevating member mounted on the slider so as to elevate, a pusher fixed to the elevating member to pressurize a device loaded in the socket, and hinged between the slider and the elevating member to switch the linear movement of the slider to the elevating member. And a plurality of links, an elastic member installed between the slider and the elevating member to restore the elevating member, and a driving means fixed to the mounting plate to move the slider forward and backward. A contact device is provided.

1 is a longitudinal sectional view schematically showing a conventional apparatus

2 is a perspective view showing an embodiment of the present invention

3 is a perspective view of a slider

4A to 4D are longitudinal cross-sectional views of FIG. 2 for explaining the operating state of the present invention.

4A shows a state where the slider has loaded one device into the socket at the initial position;

4b is a state in which the slider is pushed forward to press the device loaded with the pusher into the socket;

4C is a state in which the pusher sucks the tested device and unloads it into the buffer upon return of the slider.

Figure 4d shows a state in which a device in the buffer is exposed to the outside through the slider aperture by loading the new device into the socket and then re-advancing the slider.

5 is a top view of FIG. 4A

6 is a perspective view showing another embodiment of the present invention

Explanation of symbols for main parts of the drawings

1: socket 7: mounting plate

7: stopper 8: slider

11 link 12 lifting member

14 pusher 15 elastic member

16 drive means 17 vacuum line

18: Buffer 19a, 19b: Picker

Hereinafter, the present invention will be described in more detail with reference to FIGS. 2 to 6 as an embodiment.

Figure 2 is a perspective view showing an embodiment of the present invention, Figure 3 is a perspective view of the pusher drive plate and Figures 4a to 4d is a longitudinal cross-sectional view of Figure 2 for explaining the operating state of the present invention, the present invention is in a test position The mounting plate 7 provided with the through hole 7a is fixed to the base 6 so that the terminal 1a of the socket 1 is exposed upward, and the stopper 7b protrudes upward on one side of the mounting plate. It is provided.

The slider 8 is installed on the mounting plate 7 fixed to the base 6 so as to be movable horizontally. In one embodiment of the present invention, the slider 8 is connected to the pair of guide rods 9. Although it is fitted to move horizontally, the guide rail (not shown) to which the slider 8 is fitted on the mounting plate may be fixed to move horizontally.

A plurality of pins 10 are fixed to the slider 8 which is inserted into the guide rod 9 and moves horizontally so that one end of the link 11 is hinged to the pin and the other end of the link is a lifting member 12. The pin 13 fixed to the hinge 13 is hinged so that the slider 8 moves forward and backward, so that the tip of the link 11 hinged to the elevating member 12 is connected to the stopper 7b, or the elevating member ( 12 moves up and down about the pins 10 and 13 from the slider.

As described above, the pusher 14 for pressing the device 2 loaded in the socket 1 is fixed to the bottom of the elevating member that moves up and down from the slider 8, and the slider 8 and the elevating member 12 are fixed. An elastic member 15 is provided to move the elevating member 12 to the initial state by the elastic force when the elevating member 12 is compressed when the lowering member 12 is lowered by the advance of the slider 8 therebetween. have.

In an embodiment of the present invention, the elastic member 15 is applied as a torsion spring installed between each of the pins 10 and 13, but in another embodiment of FIG. 6, the coil spring is applied by applying a coil spring. Is arranged between the slider 8 and the elevating member 12.

In addition, a pneumatic cylinder, which is a driving means 16 for advancing and retracting the slider 8 on the vertical bulkhead, is formed on the opposite side of the stopper 7b provided in the mounting plate 7. .

On the other hand, it is more preferable to form a stopper 7b which is formed on one side of the mounting plate 7 and the linker 11 hinged to the slider 8 and the elevating member 12 is inclined downward.

This is because when the link 11 provided on both sides of the elevating member 12 contacts the stopper 7b by advancing the slider 8, the link 11 rotates around the pins 10 and 13 even with a small force. This is to ensure that the lifting member 12 is lowered stably.

That is, the horizontal movement of the slider 8 is to be more easily converted to the vertical movement of the elevating member 12.

In the present invention configured as described above, the lifting member 12, which was lowered by forming the vacuum line 17 so as to open the bottom surface of the pusher 14 as shown in Figs. The pusher 14 is configured to hold the completed device, and a buffer 18 is formed on the mounting plate 7 to be located at the bottom of the pusher 14 before the elevating member 12 is operated. As shown in Fig. 3, through holes 8a are formed so that the buffer 18 formed in the mounting plate 7 is exposed to the outside when the slider is moved forward.

This allows the pusher 14, which has been lowered to pressurize the device 2 loaded on the socket 1 for testing purposes, to adsorb the tested device and return it on the buffer 18 upon return after completion of the test. This is to maximize the productivity of the device by minimizing the cycle time of loading and unloading the device into the socket 1.

As such, when the vacuum line 17 is provided on the pusher 14 and the buffer 18 is formed on the mounting plate 7, the picker 19a for holding and transferring the device 2 according to the time required for the test. ) 19b may be configured as one or two, but if the time required for the test of the device is short, it is preferable to apply two. Therefore, only two units 19b will be described.

Referring to the operation of the present invention configured as described above is as follows.

First, when the driving of the pneumatic cylinder, which is the driving means 16, is opened, that is, the slider 8 is located at the right side in the drawing as shown in FIG. 4A, the socket ( The terminal in 1) is exposed on top, allowing the device to be tested to be loaded onto the socket.

Accordingly, the two pickers 19a and 19b simultaneously move along the X-Y axis toward the loading unit (not shown), and then simultaneously adsorb the two devices to be tested contained in the tray and load the socket as the loading position. Although it is conveyed to the upper part of 1), since the picker 19a (19b) operation | movement which adsorb | sucks the device in a tray is the same as before, the detailed description is abbreviate | omitted.

In the above-described operation, the pickers 19a and 19b respectively pick up the two devices 2 and are located directly above the sockets 1, so that the devices 2 held in any one picker are connected to the sockets ( Will be loaded in 1).

After the device 2 to be tested in the socket 1 is loaded as described above, the pneumatic cylinder, which is the driving means 16, operates to advance the slider 8, and thus the lifting member connected to the slider by a plurality of links 11. 12 moves along the guide rod 9 to the left in the drawing together with the slider.

When the link 11 protruding outward from the elevating member 12 by the continuous advance of the slider 8 is connected to the stopper 7b, the elevating member 12 is caught by the stopper 7b and is no longer transported.

In this state, if the slider 8 is slightly moved to the left side in the drawing, the link 11 connected between the pins 10 and 13 is rotated about the pin, and thus the elevating member whose transfer is controlled by the stopper 7b. 12 is lowered in the vertical direction, and thus, the pusher 14 fixed to the bottom of the elevating member 12 presses the device 2 loaded in the socket 1 as shown in FIG. The device can then be tested.

At this time, the elastic member 15, such as a torsion spring provided between the pins 10 and 13, or a coil spring provided between the slider 8 and the elevating member 12, is kept in a compressed state. The pickers 19a and 19b holding the device to be tested are waiting on the upper side of the socket 1.

After the test of the device 2 loaded in the socket 1 is completed, the vacuum pressure is applied through the vacuum line 17 formed through the bottom of the pusher 14, so that the tested device is adsorbed to the pusher 14. At the same time, the pneumatic cylinder, which is the driving means 16, is driven again to return the slider 8, which has been advanced as far as possible, to the initial state.

Therefore, when the slider 8 starts to return, the elevating member 12 which is lowered is provided between the torsion springs compressed between the pins 10 and 13 or between the slider 8 and the elevating member 12. It is vertically raised by the restoring force of the coil spring that has been compressed. The link 11, which lowered the elevating member 12 while being rotated by the stopper 7b as the slider 8 moves forward, is also reduced to the initial state. .

In this manner, after the elevating member 12 rises to the top dead center, after the drive 8 is completely driven, the slider 8 is completely returned to the initial state. ) Is positioned directly above the buffer 18 formed on the mounting plate 7, thereby releasing the vacuum pressure applied to the vacuum line 17 and seating the device on the buffer 18 as shown in FIG. 4C.

When the above operation is completed, the tested device 2 is maintained in the initial state as shown in FIG. 4A except that the tested device 2 is positioned on the buffer 18, and thus is held in one of the pickers 19a and 19b. The previously loaded device is loaded into the socket 1 through the through hole 8a, and the slider 8 is advanced by re-drive of the driving means 16 so that the pusher 14 presses the device to perform a test for a set time. The operation is the same as described above, and thus will be omitted.

When the slider 8 is re-advanced to test the device 2 loaded in the socket 1 as described above, the tested device 2 seated in the buffer 14 is moved to the slider 8 as shown in FIG. 4D. Since it is exposed to the outside through the through hole 8a of the picker of any one of the two pickers (19a) (19b) while testing the device loaded in the socket (1) is tested by adsorbing the tested device from the buffer (14) According to the result according to the unloading in the tray located in the unloading unit.

The pickers 19a and 19b then move to the loading side to adsorb the new device to be tested so that two pickers 19a and 19b simultaneously adsorb the device and then move directly above the socket 1 It is waiting for the test of the device loaded in the socket 1 to be completed.

Therefore, after the test of the device loaded in the socket 1 is completed and the tested device 2 is adsorbed by the pusher 14 and seated on the buffer 18 upon return of the slider 8, the pickers 19a and 19b. Test is performed by reloading any device that has been adsorbed into the socket 1, and the picker that has loaded the device into the socket during the test reholds the device 2 located on the buffer 14 Done.

When the tested device is placed on the buffer 14 in a repetitive operation, the picker loads the untested device held in the pickers 19a and 19b into the socket 1 while the picker loads the buffer 14 while the test is performed. By adsorbing the tested devices seated in), the two tested devices can be classified as good or bad according to the test result and transferred to the unloading part.

However, if the test takes a long time, only one picker is used to hold the device 2 located on the buffer 14 while testing the device 2 loaded in the socket 1. It is understood that the unloading unit can be classified according to the test result and at the same time, the device to be tested on the loading unit can be held on the upper part of the socket.

On the other hand, Figure 6 is a perspective view showing another embodiment of the present invention, in another embodiment the buffer 18 is not provided on the mounting plate (7) because the through hole (8a) is also formed in the slider (8) Since the picker may load or unload only one device 2 into the socket 1, the rest of the configuration is the same as the exemplary embodiment, and thus a detailed description thereof will be omitted.

As described above, the present invention has the following advantages over the conventional device contact apparatus.

First, while the pusher 14 presses the device 2 loaded in the socket 1 to classify the tested device 2 into the unloading part while the test is carried out, at the same time, the new device to be tested is sucked and the upper part of the socket This minimizes the cycle time of the test, thereby maximizing the productivity of the device's test.

Second, when two pickers 19a and 19b are applied, productivity can be further maximized because two devices can be unloaded at the same time.

Third, it is possible to reduce the production cost due to maximizing the operation rate of expensive equipment.

Third, since the descending amount of the pusher 14 is always kept constant by the stroke of the slider 8, it is possible to always press a constant pressure to the socket side of the loaded device, thereby preventing a problem due to the pressurization of the device. Done.

Claims (8)

A through hole is formed to expose the terminal of the socket to the upper side, and on one side of the mounting plate is provided with a stopper, a slider provided on the mounting plate to move horizontally, the elevating member provided to be movable on the slider, the elevating member A pusher fixedly mounted to the pusher to press the device loaded in the socket, a plurality of links hinged between the slider and the elevating member to switch the linear movement of the slider to the elevating member, and between the slider and the elevating member. And a resilient member installed to restore the elevating member, and driving means fixed to the mounting plate to move the slider forward and backward. The method of claim 1, A pair of guide rods are fixed to the installation plate, the device contact device of the horizontal tester handler, characterized in that the slider is fitted to the guide rods configured to guide the retreat movement. The method of claim 1, And the elastic member is a torsion spring installed between each shaft to which the link is hinged. The method of claim 1, And the elastic member is a coil spring installed between the slider and the elevating member. The method of claim 1, And a stopper contacting the slider and the link hinged to the elevating member is inclined downwardly. The method of claim 1, A vacuum line formed on the bottom of the pusher to hold the tested device upon return of the elevating member, a buffer formed on the mounting plate to be located on the bottom of the pusher prior to the operation of the elevating member, and a mounting plate when the slider moves forward And a through hole formed in the slider to expose the buffer formed at the outside of the horizontal tester handler. The method of claim 6, And a picker for loading a device into the socket or unloading a device in a buffer. The method of claim 6, And two pickers for loading a device into the socket or unloading a device in a buffer.