KR200215282Y1 - device for regulating pushing pressure of test unit in handler - Google Patents

Abstract

The present invention relates to a pushing pressure adjusting device in a test part of a handler that enables to maintain a uniform pressing force of a device suspended from a test tray when the lead of the device is connected to a contact pin of a socket. The contact pressure between the lead and the contact pin can be maintained at all times regardless of the mounting accuracy of the carrier module or the lead deformation of the device and whether the socket is installed or the stroke of the drive.

To this end, in the handler configured to fix the plurality of pushing blocks 12 for pushing the carrier module mounted on the test tray 1 to the pushing plate 11, the engaging pieces 16 bent inward to each pushing block. In addition to forming a locking jaw (17) to the pusher (14) so as not to be separated from the pushing block on the pusher 14 and the elastic member 15 is connected to the upper surface of the locking jaw to be installed, Deformation of the lead due to pressurization of the device does not cause a test failure.

Description

Device for regulating pushing pressure of test unit in handler}

The present invention relates to a horizontal handler that moves a device horizontally to test the performance of the device. More specifically, the pressure of the device suspended on the test tray is uniformly applied when the lead of the device is connected to the contact pin of the socket. It relates to a pushing pressure control device in the test section of the handler to be maintained.

1 is a front view showing a test tray used in a horizontal handler, in which a plurality of carrier modules 3 having a cavity 4 on a frame 2 of a test tray 1 are movably mounted thereon The device to be tested is contained in the cavity 4 of the module, or the performance of the device is tested while the test tray 1 is transferred between test processes in a suspended state.

FIG. 2 is a perspective view showing a horizontal handler with a conventional device, and FIG. 3 is a longitudinal cross-sectional view of FIG. 2, wherein a test unit 5 for testing an element contained in or suspended from the cavity 4 of the carrier module 3 is illustrated. Is installed in the horizontal direction, and the test tray 1 is transferred to the test part, so that the lead of the device loaded by pressing the carrier module 3 mounted on the test tray is mounted on the tester fixing device 6. The drive 7 which can be electrically connected to the contact pin (not shown) of this is provided so that raising / lowering is possible.

Therefore, when the test tray 1 is transferred to the test unit 5 while the element loaded in the carrier module 3 is heated at a temperature suitable for testing in the first chamber 8, the test tray 1 is driven downward. Since the drive 7 is lowered and the carrier module 3 loaded with the device is pressed, the lead of the device is electrically connected to the contact pin of the socket installed in the tester fixing device 6, thereby testing each device. The signal is provided to a tester (not shown).

As such, the test signal is transmitted to the tester (not shown), and as a result, the signal is input to the CPU, thereby determining the performance of the device.

After testing the performance of the device according to the operation as described above, the drive 7 that was lowered ascends and the test tray 1 is transferred to the second chamber 9, cooled, and then transferred to the unloading unit. According to the device is sorted and contained in the empty customer tray located in the classification stacking unit, the test work of the device is completed.

However, such a conventional apparatus has a pusher 10 fixed to a drive 7 installed in the drive 7 to press the carrier module 3 mounted on the test tray 1 so that the lead of the element suspended from each carrier module 3 is fixed. There is a problem that the contact pressure of the contact pin is different.

That is, according to the mounting degree of each carrier module (3) mounted on the test tray (1), the position according to the deformation of the lead hanging on the carrier module, and the mounting state of the socket installed on the tester fixing device (6) Although the contact between the lead and the contact pin of the element suspended in the) is different, the pusher 10 fixed to the drive 7 presses the entire carrier module 3 with the same pressure, so that the lead of the element Deformed by pressing or the contact pressure between the lead and the contact pin is lower than the set value has caused a problem that the good product is judged as a defective product.

In particular, if the stroke of the drive 7 is set incorrectly and larger than the set value, the carrier module 3 is excessively pushed toward the tester fixing device 6, which causes a fatal problem in which leads of all the elements loaded on the carrier module are deformed. It became.

The present invention has been made to solve such a problem in the prior art, and improved the structure of the pusher, regardless of the mounting degree of the carrier module mounted on the test tray or the lead deformation of the device and whether or not the socket is mounted, the contact with the lead The purpose is to ensure that the contact pressure of the pin is always constant.

Another object of the present invention is to maintain a constant contact pressure between the lead of the device and the contact pin of the socket without accurately adjusting the stroke of the drive.

According to an aspect of the present invention for achieving the above object, a plurality of pushing blocks for pressing the carrier module mounted on the test tray is fixed to the pushing plate, the pusher can be moved back and forth by the elastic member to each pushing block. The pushing pressure control device in the test section of the resiliently installed handler is provided.

1 is a front view of a test tray used in a horizontal handler

Figure 2 is a perspective view of a horizontal handler with a conventional device

3 is a longitudinal cross-sectional view of FIG.

4 is a cross-sectional view of a test unit in which the present invention device is installed.

5 is a cross-sectional view taken along the line A-A of FIG.

6a and 6b is an enlarged view showing the operating state of the present invention

Explanation of symbols for main parts of the drawings

11: pushing plate 12: pushing block

14 pusher 15 elastic member

16: jam piece 17: jam jaw

Hereinafter, with reference to Figures 4 to 6 showing the present invention as an embodiment in more detail as follows.

4 is a cross-sectional view of a test unit in which the apparatus of the present invention is installed, and FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4, and FIGS. 6A and 6B are enlarged views showing an operating state of the present invention, and the present invention includes a pushing plate 11. A plurality of pushing blocks 12 are detachably fixed to each other by the fastening member 13, and each of the pushing blocks has a pusher 14 removably installed therebetween, and between the pushing plate 11 and the pusher 14. An elastic member 15 such as a coil spring is elastically installed.

The elastic member 15 should use a coil spring of a heat resistant material that can withstand the high temperature of the test unit 5 without being deformed.

The locking pieces 16 are bent inwardly on each of the pushing blocks so that the pushers 14 installed on the pushing block 12 to be retracted and retracted from the pushing blocks by the elastic force of the elastic member 15 and the bending pieces 16 are bent inward. A locking jaw 17 is formed in the pusher 14 to be inserted therein so as not to be separated from the pushing block 12 by being caught by the locking piece 16 and an elasticity between the locking jaw 17 and the pushing plate 11. The member 15 is provided.

However, contrary to the foregoing, the pusher 14 may be extrapolated to the pushing block 12. In this case, since the pusher 14 is extrapolated to the pushing block, the elastic member 15 is also outside the pushing block 12. Must be installed on

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

First, in the state in which the pusher 14 is mounted on the pushing block 12, a state in which the pusher 14 is drawn out to the outside as much as possible by the elastic force of the elastic member 15 installed between the pushing plate 11 and the pusher 14 as shown in FIG. 6A. Will be maintained.

In this state, after the element loaded in the test tray 1 is heated in the first chamber 8 at a temperature suitable for the test, and the test tray is transferred to the test unit 5, the drive 7 drives and the pushing plate ( Since 11) is pushed to the test tray 1 side by a set amount, the pusher 14 which is installed on the pushing block 12 in a retractable manner is connected to the carrier module 3 suspended from the test tray 1 at the same time.

As the pusher 14 is further transferred to the tester fixing device 6 while the pusher 14 is connected to each carrier module 3 as described above, the pusher 14 compresses the elastic member 15 as shown in FIG. 6B. The test tray 1 is transferred to the tester fixing device 6 while the lead of the element loaded in the carrier module 3 is electrically connected to the contact pin of the socket provided in the tester fixing device 6.

In the above operation, even if the mounting accuracy of the carrier module 3 mounted on the test tray 1 or the lead deformation of the device and the mounting precision of the socket are different, or the drive stroke is set larger than the set value, the pushing block Since the pusher 14 installed inside the 12 presses the element with a uniform pressing force by the elastic force of the elastic member 15, the lead of the element is stably in contact with the contact pin of the socket.

On the other hand, after the test is completed in the state in which the lead of the device is in electrical contact with the contact pin of the socket for a predetermined time, the pushing plate 11 is reduced to the initial state and the pusher 14 is separated from the carrier module 3 so as to be elastic. The pusher 14, which was pressed while compressing the member 15, is also reduced to the initial state by the restoring force of the elastic member 15. At this time, the locking step 17 formed on the pusher 14 is applied to the pushing block 12. Since it is caught by the formed engaging piece 16, the movement of the pusher 14 is controlled.

As a result, the element suspended from the carrier module 3 can always be pressed against the socket side of the tester fixing device 6 at a constant pressure.

As described above, the present invention pushes the element suspended from the carrier module to the socket side of the tester fixing device at a constant pressure by the simple structure of elastically installing the pusher on the pushing block. Because of incorrectly set, it is possible to prevent the test failure due to this.

Claims (1)

In the handler configured to fix a plurality of pushing blocks 12 for pushing the carrier module mounted on the test tray 1 to the pushing plate 11, In addition to forming the engaging piece 16 bent inwardly on each of the pushing blocks, the pusher 14 is formed with a catching jaw (17) to be caught in the catching piece so as not to be separated from the pushing block, and the upper surface of the catching jaw is elastic Pushing pressure regulating device in the test section of the handler, characterized in that the member 15 is provided so as to be connected.