JPH0712947Y2 - Parts testing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial application field" The present invention relates to a component testing apparatus for testing the quality of a component such as a semiconductor integrated circuit element, and in particular, automatically retests a component determined to be defective. The object of the present invention is to provide a component testing device with an added function that can be performed.

"Conventional Technology" In a conventional component testing device for testing semiconductor integrated circuit devices (hereinafter simply referred to as IC), ICs to be tested are aligned and stored in a cylindrical magazine, and this magazine is stored on the component supply side of the IC testing device. It is installed in the magazine stocker of and the parts whose orientations in the head and tail directions are specified are sequentially supplied from the magazine to the test equipment.

The test device sequentially tests the ICs ejected from the magazine, sorts out the good products and the bad products according to the test results, sorts the good products and the bad products into separate magazines and stores them, and finishes the test.

“Problems to be solved by the device” When a large number of defective products are generated in the test results, the following two causes can be considered. A mistake in the manufacturing process of the device. Defective test equipment.

Retesting is required to determine whether the cause of the defect is present.

Conventionally, a magazine containing ICs that have been determined to be defective is manually transferred to the supply-side magazine stocker of the test device and retested.

This is an obstacle to manpower, omission in the testing department, and unmannedness.

An object of the present invention is to provide a component testing apparatus having a function of automatically retesting a defective product when the defective product occurs.

"Means for Solving the Problems" In this invention, a supply-side magazine support part in which a magazine storing parts to be tested is placed in a cylindrical magazine, and parts to be tested are loaded from the magazine arranged in this magazine support part. A component aligning device that sequentially takes out and aligns a plurality of components at a predetermined position, and a first component transferring device that transfers the plurality of components aligned by the component aligning device to a tray that circulates in the device. The tray on which the parts are transferred by the transfer device is transferred, and the tray is mounted on this tray from the testing device that tests the quality of the mounted parts and the tray that comes with the parts tested by this testing device. Second component transfer device for transferring the existing components to the linear transport device, and a receiving-side magazine supporting a plurality of empty magazines whose openings face each other toward the linear transport device. Non-defective product sorting device that picks up non-defective products from the support unit and the parts that are mounted on the linear transport device and is transferred to the non-defective product storage empty magazine supported by the receiving magazine support unit. And a defective product selection device and an empty magazine support that select defective products from the parts that are mounted on the linear transport device and are transferred and take the defective products into the empty magazine for storing defective products supported by the receiving magazine support section A component testing device is configured by a defective magazine transport device that transports the defective magazine for storage of defective products supported by the unit to the supply-side magazine support unit in a full state.

According to the component testing apparatus of the present invention, the components determined to be defective by the test are stored in the magazine arranged to store the defective products.

When the defective article storage magazine storing the defective articles is taken into the magazine until the defective articles are full, the carrying device starts operating and is automatically carried to the supply magazine stocker by the carrying apparatus.

As described above, according to the present invention, every time the magazine containing the defective product is full, the magazine containing the defective product is conveyed to the supply-side magazine stocker, and the parts determined to be defective are automatically retested. To be done.

Therefore, according to this invention, it is possible to re-test a component that has been determined to be defective without manpower, and it is possible to determine, as a result of the re-test, whether the component itself is defective or the test device is malfunctioning. It is convenient and convenient.

[Embodiment] FIGS. 1 to 3 show an example of a component testing apparatus according to the present invention. FIG. 1 shows a plan view of a component testing apparatus according to the present invention, and FIG. 2 shows a front view.

Reference numeral 100 shown in FIG. 1 represents a test apparatus. The test apparatus 100 is electrically connected to the test head 101,
The component 10 attached to is operated to test whether it is normal or not.

In this example, a structure is shown in which the test head 101 is provided inside the constant temperature bath 102, and the component 10 is operated in a desired temperature environment to perform a test.

A tray transfer path 103 for transferring the component 10 is provided across the inside and outside of the constant temperature bath 102. This tray transport path 1
03 constitutes a closed loop, and the tray 104 is the tray transport path 1
It is guided by 03 and is sequentially circulated in the order of A-B-C-D-E-F.

At least the first component transfer device 200 is provided outside the thermostatic chamber 102.
In order to take in the supply side magazine support portion 400 for feeding the component 10 to the second component transfer device 300 and the first component transfer device 200, and the tested component 10 discharged from the second component transfer device 300. Empty magazine support 500 with empty magazines
And are provided.

Below the supply-side magazine support portion 400 and the empty magazine support portion 500, a magazine transport device 600 is provided. The magazine transport device 600 can use, for example, a transport mechanism using a belt, and can drive the belt by, for example, a pulse motor to move the magazine M placed on the belt in either direction of arrows P and Q. Constitute.

As shown in FIG. 2, a supply-side magazine stocker 401 and a reception-side magazine stocker 501 are provided on the upper side of each of the supply-side magazine support portion 400 and the empty magazine support portion 500.

In the supply-side magazine stocker 401, magazines M, which are filled with the components 10 to be tested, are stacked and stocked.

Magazines M containing the tested parts are stacked and stocked in the receiving magazine stocker 501.

1 Magasin M on the bottom of the supply magazine stocker 401
Escape mechanism is provided to send out one by one, lifting device 40
When 2 arrives at the bottom, an operation of delivering one magazine M to the lifting device 402 is performed.

On the other hand, the receiving magazine stocker 501 is provided with a latch mechanism at the bottom, and when the magazine M filled with the tested parts 10 is pushed in by the elevating device 502, the magazines M already stacked are pushed up together and lifted. apparatus
The operation of receiving the magazine M pushed in at 502 is performed.

The elevating devices 402 and 502 are driven by, for example, air cylinders, and as shown in FIG.
It is provided inside the belt that constitutes 0.

The magazine support 400 on the supply side is moved from the lifting device 402 to the magazine M.
A rotating arm 403 for receiving and supporting the component, and a component feeding device 4
It is composed of 04 and.

The rotating arm 403 is attached to the housing so that its free end can be rotated in the vertical direction, and is provided with a lock mechanism that locks the rotating arm 403 in a horizontal posture position. When the magazine M in the full state is received and descends, the rotating arm 403 is locked in a horizontal posture so that the magazine M can be received and supported.

When the rotating arm 403 is in a horizontal posture and the magazine M is mounted on the rotating arm 403, the lifting device 402 moves up and approaches the magazine M. The lock mechanism is unlocked,
The weight of the magazine M causes the rotating arm 403 to start rotating downward. At this time, the lifting / lowering device 402 is located below the magazine M, and the magazine M is received by the lifting / lowering device 402 and is transferred to the lifting / lowering device 402. Therefore, the magazine, which is supported by the supply-side magazine support portion 400 and has discharged the component 10, is sent to the magazine transport device 600 by the elevating device 402.

A component feeding device 404 is provided on an extension of the rotating arm 403 in a horizontal posture. The part feeding device 404 is the floor 40.
5 and a belt 40 provided under the floor 405 as shown in FIG.
6 and a pin 407 planted in the belt 406. The belt 406 is driven by, for example, a stepping motor, and the pin 407 is inserted into the magazine M through a slit formed in the floor 405 and the bottom surface of the magazine M. The component 10 in the magasin M is pushed from the rear by 407, and the component 10
Are ejected one by one from the open portion of the magazine M.

Aligning device 40 for laterally aligning the components 10 facing the opening of the magazine supported by the supply-side magazine support 400.
9 is provided. As the aligning device 409, for example, a conveying device using a belt can be used.

That is, when the components 10 are discharged one by one from one magazine by the component feeding device 404, the components 10 discharged from the magazine M are placed on the belt forming the aligning device 409. The belt forming the aligning device 409 moves laterally one step when one component 10 is placed. By alternately loading the components 10 and moving the aligning device 409, the components 10 can be aligned in a line.

The components 10 arranged in a line are placed on the tray 104 by the first component transfer device 200. The tray 104 is formed with a recess 104A in which the component 10 is stored, and the component 10 is dropped into this recess 104 and positioned.

About 40 to 80 parts 10 are mounted on the tray 104 at a time.

The first component transfer device 200 is composed of a moving base 201 supported so as to be movable in the Y-axis direction, and a suction bed 202 attached to the moving base 201 to suck components by the suction force of air. In this example, a case where eight suction heads 202 are attached to the moving table 201 is shown. Therefore, the trays 104 are picked up by eight pieces of the components 10 aligned by the aligning device 409.
Can be placed on top. When the first component transfer device 200 transfers the eight components 10 from the alignment device 409 to the tray 104, the alignment device 409 moves by the pitch of the arrangement pitch of the components 10 and the transfer operation of the first component transfer device 200. Prepare for

Although the first component transfer device 200 takes in the components 10 from the alignment device 409 in principle, the transfer is completed and the empty tray 104
Alignment device using the idle time until
The component 10 on 409 is also loaded into the component buffer 410.

When a predetermined number of parts 10 are transferred onto the tray 104, the tray 104 is fed into the constant temperature bath 102 and stopped at the position of the test head 101, and at this position, the parts 10 are transferred to the test head 101 one by one, and the test apparatus 100 Is electrically connected to and tested.

The parts are numbered according to the number assigned to the tray 104 and the arrangement position on the tray 104, and data representing the test result is added to the number and stored.

Therefore, when transferring the tested component 10 from the tray 104 to the linear transport device 509 when the tray 104 moves to the position of the second component transfer device 300, the pass / fail position of the component 10 on the linear transport device 509. Is transmitted to the sorting device 700.

The sorting device 700 is provided with a non-defective product sorting device 701 for sorting non-defective products and a defective product sorting device 702 for sorting defective products. The non-defective product sorting device 701 activates a drive device such as an air cylinder when a non-defective product out of the parts transported by the linear transport device 509 arrives immediately before, and supports the component judged to be non-defective in the empty magazine support portion 500. Push it into the empty magazine M for storing good products.

Further, when the defective product selection device 702 and the component 10 determined as defective arrives immediately before, the component is emptied into the empty magazine support unit 500.
Push it into the empty magazine for storing defective products supported by.

When a good product and a bad product are repeatedly pushed into the magazine M and the magazine M containing the good products becomes full, the optical switch detects the state through a hole provided on the closed end side of the magazine M. Non-defective product sorting device based on this detection signal
701 interrupts the sorting operation, the lifting device 502 starts to move up, and the magazine M containing good products is received in the receiving magazine stocker 501.
In contrast to the supply-side magazine stocker 401 described above, the receiving-side magasin stocker 501 is provided with a mechanism on the bottom surface for taking in the magazine M pushed in from below.

When the elevating device 502 stores the magazine M containing good products in the receiving magazine stocker 501, the elevating device 502 moves to the lower side of the magazine transport device 600, and the empty magazine M is sent from the empty magazine stocker 503. wait. Lifting device 5 when empty magazine M is sent from empty magazine stocker 503
02 lifts the empty magazine M, and the empty magazine M
Are supported by the empty magazine support section 500.

Here, in this invention, as soon as the magazine M containing the defective product is full, the magazine M is not stored in the receiving magazine stocker 501 but is moved to the magazine transport device 600 by the elevating device 502 and returned to the supply magazine supporting unit 400. It is characterized by the point.

In other words, the parts 10 determined to be defective are stored in the magazine M,
This magazine M is conveyed to the lower side of the supply-side magazine support portion 400 by the magazine transfer device 600, and the rotary arm 403 of the supply-side magazine support portion 400 supports this magazine M so that the parts determined to be defective are automatically transferred. Can be retested.

In the supply-side magazine support portion 400, the position of the defective part mounted on the tray 104 can be defined by predetermining the position for receiving the magazine M containing the defective product.

[Advantage of the Invention] As described above, according to the present invention, the parts determined to be defective are automatically returned to the supply side, so that, for example, when a defect occurs due to contact failure in the test head 101 part. In this case, the component judged to be defective at that time is retested.

Therefore, it is possible to automatically retest a component determined to be defective without human intervention, and it is possible to determine to be truly defective when the retest is repeated a predetermined number of times or more.

In addition, since no labor is required, there is an advantage that the test can be performed unattended.

As a result, the effect is remarkable when a large number of parts are tested without manpower.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a sectional view for explaining a structure of a part for taking out parts from a magazine. 100: test device, 104: tray, 200: first component transfer device, 30
0: Second component transfer device, 400: Supply side magazine support part, 409:
Parts aligning device, 500: Empty magazine support part, 600: Magazine transport device, 701: Good product sorting device, 702: Defective product sorting device, M: Magazine.

Claims (1)

[Scope of utility model registration request] 1. A supply-side magazine support part in which a magazine containing parts to be tested is arranged in a cylindrical magazine, and B. parts to be tested are sequentially taken out from the magazine arranged in this magazine support part C. a parts aligning device for aligning the parts in a predetermined position, C. a first parts transferring device for transferring a plurality of parts aligned by the parts aligning device to a tray circulating in the device, and D. first parts The tray on which the parts are transferred by the transfer device is transferred, and the test device that tests the quality of the mounted parts, and E. The tray that comes with the parts tested by this test device and arrives on this tray. A second component transfer device that transfers the mounted components to the linear transport device, and F. A receiving-side magazine support part that supports a plurality of empty magazines with openings facing each other toward the linear transport device. And G. above straight transport A non-defective item selection device that picks up non-defective items from the parts mounted and transferred to the device and takes in the determined non-defective items to the non-defective item storage empty magazine supported by the receiving magazine support section, H. A defective product storage device that selects defective products from the parts mounted and transferred to the transport device and loads the defective products into the empty magazine for storing defective products supported by the receiving magazine support section, I. A component testing device, comprising: a magazine transport device for transporting a defective article storage empty magazine supported by the side magazine support part to the supply side magazine support part in a full state.