JPH0712948Y2 - 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 mounted on the magazine stocker of and the parts whose orientations in the front and rear directions are specified are sequentially supplied from the magazine to the test equipment.

The test device sequentially tests the ICs discharged from the magazine, sorts the good products into defective products according to the test result, stores the good products and the defective products separately in the magazine, and ends 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, the 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, labor saving in the testing department, and eventually unmanned operation.

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 Problem" In the present invention, a component aligning device for receiving components delivered from a component supply unit and aligning them in a line, and a plurality of components aligned by the component aligning device are circulated in the device. A first component transfer device that transfers the components to a tray, a tray that transfers the components transferred by the first component transfer device, and a test device that tests the quality of the mounted components, and a test device that tests The second component transfer device that transfers the components mounted on this tray to the linear transport device from the tray that comes with the mounted components, and is determined to be a good product among the components transported by the linear transport device. Non-defective product sorting device that ejects the parts that have been ejected from the linear transport device, a non-defective product storage unit that stores the components that are ejected from the linear transport device by this non-defective product sorting device, the end of the linear transport device, and the component alignment device And a defective product conveying device which is provided between the defective product conveying device and the non-defective product selecting device and returns the defective product conveyed to the end of the linear conveying device to the component aligning device.

According to the configuration of the present invention, the parts determined to be defective as a result of the test are carried to the end of the linear carrying device without being selected by the non-defective product sorting device.

Since a defective product conveying device is provided between the end of the linear conveying device and the component aligning device provided on the component supply side, if defective products are not sorted by the good product sorting device and are conveyed to the end of the linear conveying device, defective products The transport device operates and the defective product can be returned to the component alignment device provided on the component supply side.

Therefore, according to this invention, even if a defective product occurs, the defective product can be automatically returned to the component supply side, and the defective product can be automatically retested. Therefore, there is an advantage that a defective product can be repeatedly tested a predetermined number of times or more without manpower.

"Embodiment" FIG. 1 shows an embodiment of the present invention. 100 shown in FIG.
Indicates a test device. This test apparatus 100 has a test head 101.
The operation of the component 10 electrically connected to the test head 101 and mounted on the test head 101 is tested to determine whether it is good or bad.

In this example, the test head 101 is provided inside the constant temperature bath 102, and the component 10 is operated in a desired temperature environment so that it can be tested whether or not a predetermined operation is performed.

An indoor rail 103 is provided in an annular shape across the inside and outside of the constant temperature bath 102. The tray 104 is guided by the guide rail 103 so that the inside and the outside of the constant temperature bath 102 are ABCDE-E-
The part 10 is conveyed by moving in the order of F.

The component 10 to be tested is stored in the component supply unit 200 located at the lower left of the figure, and the component 10 is delivered from the component supply unit 200 to the alignment device 300.

The aligning device 300 can be configured by, for example, a belt type conveying device, and the movement amount can be controlled by, for example, a pulse motor, and the components 10 can be moved in either forward or reverse directions. In the normal component supply state, the component is moved only in one direction, but when a defective product conveying device 400 described later conveys a defective product, it can be driven in the opposite direction to convey the defective product to an arbitrary position. .

A first component transfer device 500 is provided so as to face the alignment device 300.
The first component transfer device 500 includes a movable base 501 that is supported so as to be movable in the Y-axis direction, and a plurality of suction heads 50 that suction the components 10 by the suction force of air supported by the movable base 501.
It can be composed of 2 and. In this example, the movable table 5
The case where eight suction heads 502 are attached to 01 is shown.

The first component transfer device 500 sucks eight components 10 arranged in a line by the aligning device 300 at a time onto the suction head 502,
Transfer to tray 104.

The tray 104 has eight recesses 104A for storing components in one row, and eight components 10 are dropped into the recesses 104A for storing components from the suction head 502.

When this transfer operation is repeated for the number of rows of the recesses 104A formed in the tray 104, the tray 104 becomes full and is conveyed to the position of the test head 101 through the route A-B.

At the position of the test head 101, the parts 10 are taken out one by one from the tray 104, and the taken-out parts are taken out by the test head 101.
The component is mounted on the component mounting part of (1) and the operation of the component is tested by the test apparatus 100.

When the test is complete, the part 10 is returned to its original position on the tray 104. Parts between test head 101 and tray 104
As a transfer device for carrying 10, an air suction head, X
It can be configured by a movable table that moves in two directions of -Y.

When the transport device that moves in the X and Y directions returns the finished component 10 to the tray 104, the testing device 100
4 at the storage position corresponding to the position of the recess 104A on the recess 104
The quality of the component 10 stored in A is stored.

When all the components 10 on the tray 104 have finished the test, the tray 104 moves to the lower part of the second component transfer device 600 through the route CD.

The second component transfer device 600 has the same Y as the first component transfer device 500.
A movable table 601 supported movably in the axial direction, and a suction head 602 supported by the movable table 601.
When the suction head 602 sucks the parts on the tray 104, the moving table
601 moves toward the linear transport device 700.

When the suction head 602 reaches above the linear transport device 700, the suction head 602 releases the component 10 from the suction and transfers the component 10 to the linear transport device 700.

The linear transport device 700 is a component aligner 300 provided on the component supply side.
Similarly to the above, it may be configured by a belt type transport mechanism.

The non-defective product sorting device 720 and the parts storage section are located on both sides of the linear transport device 700.
And 740. The non-defective product sorting device 720 can be composed of, for example, a plurality of air cylinders, and the linear transport device 70 can be used.
The component 10 determined to be non-defective among the components 10 carried by 0 is discharged from the top of the linear transport device 700, and is stored in the component storage section 740 provided opposite thereto.

The non-defective item selection device 720 operates based on the result of quality judgment stored corresponding to the position of the component on the tray 104, and selects only non-defective items and stores them in the component storage section 740.

The component 10 determined to be defective reaches the end 701 of the linear transport device 700 without being discharged by the non-defective product storage unit 740.

In the present invention, a defective product is arranged between the terminal 701 of the linear transport device 700 and the aligning device 300 from the linear transport device 700.
The structure is characterized in that a defective product conveying device 400 for returning to 300 is provided.

The defective product conveying device 400 includes a movable base 401 supported so as to be movable in the X-axis direction, and a suction head 402 attached to the movable base 401.
It can be configured by and.

When the component 10 arrives at the end 701 of the linear transport device 700, the state is detected by an optical switch or the like. When a component arrives at the terminal 701, the defective product conveying device 400 starts operating,
The component 10 that has reached the end 701 is adsorbed by the adsorption head 402 and conveyed to the alignment device 300.

When the defective products are conveyed to the aligning device 300, the testing device 100 specifies the positions of the defective products to be transferred to the tray 104 according to the number of defective products, and recognizes the retest of the defective products.

The test apparatus 100 counts the number of retests of defective products and determines whether the same component has been retested more than a specified number of times, and when the same component has been retested more than a specified number of times, it is determined to be truly defective. To do.

[Advantage of Invention] As described above, according to this invention, even if a defect occurs in a tested component, the defective component can be automatically retested.

As a result, even if the test head 101 accidentally gives a failure determination result due to a contact failure, the parts that are determined to be defective are automatically returned to the retest, so the correct test can be performed by the retest without human intervention. Can be done.

Also, if the test head 101 fails and contact failure occurs, all of the tested components are determined to be defective and a large number of defective products occur, but these defective products are automatically retested and manpower is applied. The retest can be repeated without.

Also, in this case, when the number of parts to be retested is abnormally large and the number of retests reaches the specified number, the test equipment stops the test and only in this state is the test equipment artificially broken or the parts are It suffices to make a determination as to whether or not it is truly defective.

Therefore, according to this invention, it is possible to automatically remedy a failure determination event due to a contact failure or the like that sometimes occurs, and automation of the test can be achieved.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention. 10: Parts, 100: Testing device, 101: Test head, 102: Constant temperature bath, 103: Guide rail, 104: Tray, 200: Parts supply unit, 30
0: aligning device, 400: defective product conveying device, 500: first component transfer device, 501: movable table, 502: suction head, 600: second component transfer device, 601: movable table, 602: suction head, 700: Linear transport device,
720: Non-defective item sorting device, 740: Non-defective item storage section.

Claims (1)

[Scope of utility model registration request] 1. A component arranging device for receiving a component delivered from a component supply unit and arranging it as an example; B. Transferring a plurality of components aligned by this component arranging device to a tray circulating in the device. C. the first component transfer device, C. the tray on which the components are transferred by the first component transfer device is transferred, and the test device for testing the quality of the mounted component is tested by this test device. The second component transfer device that transfers the components mounted on this tray to the linear transport device from the tray that comes with the mounted components, and E. Non-defective products among the components transported by the linear transport device. The non-defective product sorting device that discharges the parts determined to be from the above-mentioned linear transport device; F. The non-defective product storage unit that stores the parts discharged from the above-mentioned linear transport device by this non-defective product sorting device; And the parts aligning device Is provided between the, device test apparatus defective products carried at the end of the straight conveying apparatus without being screened by the non-defective sorting device constituted by a defective conveying device for feeding back to the component alignment apparatus.