JPH09211069A - Auto handler with stocker for re-sorting - Google Patents

Abstract

(57) An object of the present invention is to provide an auto handler in which an IC carrier 10 circulates without re-loading a tray 20 from a storage loader to a supply loader. SOLUTION: In a supply section 11, an IC1 is attached to an IC carrier 10.
Is supplied, the IC carrier 10 moves to the measuring unit 13, and I
The C carrier 10 moves to the sorting unit 14, and the IC carrier 1
The ICs 1 in 0 are transferred to a plurality of trays 20 by sorting,
The C carrier 10 moves to the supply unit 11. The stocker 15 has a recess 15A for accommodating a plurality of ICs 1, and the stocker 15
The stocker 15 is arranged between the transfer paths of the IC carrier 10 from the supply unit 11 to the supply unit 11, and the stocker 15 determines the defective product I in the classification unit 14.
C1 is stored in the stocker 15 and IC1 is stored in the stocker 15.
When is full, the defective IC 1 is transferred to the empty IC carrier 10 moving from the sorting unit 14 to the supply unit 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auto handler having a stocker for re-sorting. Especially,
The present invention relates to a horizontal carrier type auto handler in which an IC carrier carrying a plurality of ICs circulates inside the apparatus.

[0002]

2. Description of the Related Art Next, the structure of an auto handler according to the prior art will be described with reference to FIG. FIG. 2A is a plan view of the auto handler, and FIG. 2A is a front view. 2, 10 is an IC carrier, 11 is a supply unit, 12 is a preheating unit, 13 is a measurement unit, and 14 is a classification unit. Further, 20 is a tray, 21 is a supply loader, 22 to 24 are accommodating loaders, and 25 is a standby unit.

In FIG. 2, a tray 20 having a plurality of ICs 1 mounted thereon is mounted on a supply loader 21 in multiple stages. The supply hand 31 starts from the uppermost tray 20 of the supply loader 21 to the IC 1
Are sequentially transferred to the IC carrier 10 of the supply unit 11. When the transport operation of the supply unit 11 to the IC transport device 10 is completed, the empty tray 20 is transported by the moving mechanism and stored in the standby unit 25.

The IC carrier 10 of the supply unit 11 has a preheating unit 12
Then, the IC 1 in the IC carrier 10 is heated for a certain period of time. After a certain period of time, the IC carrier 10 moves to the measuring unit 13 and the IC 1 is tested. 2 is a high temperature handler, and the preheating unit 12 and the measuring unit 13 are built in a high temperature tank. In the case of the low temperature handler, the preheating unit 12 is a precooling unit, and the precooling unit and the measuring unit are built in the low temperature tank.

After the IC 1 is tested, the IC carrier 10 moves to the sorting section 14. In the classifying unit 14, the accommodating hand 32 moves to I according to the test result and the preset classification condition.
C1 is classified and transferred to the tray 20 of the accommodating loader. Empty I
The C carrier 10 returns to the supply unit 11.

In FIG. 2, three accommodating loaders are prepared. The first accommodating loader 22 can mount a multi-stage tray 20 in which ICs are accommodated, but when the ICs 1 are insufficiently accommodated, the trays 20 already confirmed to be empty are supplied from the standby unit 25. . The empty tray 20 is transferred from the standby unit 25 to the second storage loader 23. A plurality of empty trays 20 are mounted on the third storage loader 24. Third
The storage loader 24 is used to store the IC 1 as a defective product, for example. It should be noted that the technically similar configuration to that of FIG.
No. 7-91795.

[0007]

In FIG. 2, an IC classified as a defective product may be re-sorted among the classified ICs. For example, when the yield in one lot is different from the expected yield, the tray 20 is pulled out from the accommodating loader set to accommodate defective ICs,
The tray 20 is mounted on the supply loader 21.

According to the present invention, in the auto handler in which the IC carrier is internally circulated, a stocker for re-sorting is arranged between the transfer paths of the IC carrier from the sorting section to the supply section, and the tray is transferred from the storage loader to the supply loader. It is an object of the present invention to provide an auto handler that re-selects inside the auto handler without reloading.

[0009]

In order to achieve this object, according to the present invention, an IC is mounted on an IC carrier 10 in a supply section 11.
1 is sequentially supplied, the IC carrier 10 is moved to the measuring unit 13 and a plurality of ICs 1 are collectively tested, and the IC carrier 10 after the test is moved to the classifying unit 14 and the classifying unit 14 Then, the ICs 1 in the IC carrier 10 are sorted based on the test result, the ICs 1 are sorted and transferred to the plurality of trays 20, and the IC carrier 10 is moved to the supply unit 11.
A stocker 1 that is an auto handler in which the carrier circulates.
5 has a recess 15A for accommodating a plurality of ICs 1, and arranges the stocker 15 between the transfer paths of the IC transporter 10 from the sorting unit 14 to the supply unit 11. The ICs 1 for determining defective products in the sorting unit 14 are stored in the stocker 15. Stored, I in stocker 15
When C1 becomes full, the defective IC 1 for determination is transferred to the empty IC carrier 10 moving from the sorting unit 14 to the supply unit 11.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. 1 is a configuration diagram showing an embodiment of an auto handler according to the present invention. FIG. 1A is a plan view and FIG. 1A is a front view. Note that, in FIG. 1, the same reference numerals as those in FIG. 2 are the same components, and thus the description thereof will be omitted unless particularly necessary.

In FIG. 1, reference numeral 15 is a stocker, and the stocker 15 has recesses 15A for accommodating a plurality of ICs 1 arranged vertically and horizontally. The stocker 15 is arranged in the transfer path of the IC carrier 10 from the sorting unit 14 to the supply unit 11.

The defective product IC 1 in the classification unit 14 is stored in the stocker 15 by the storage hand 32. When the IC1 is full in the stocker 15, the defective IC1 is transferred to the empty IC carrier 10 moving from the sorting unit 14 to the supply unit 11. That is, in FIG. 1, a space is provided on the left side of the stocker 15, and an empty IC is provided in the space.
The carrier 10 stands by, and the accommodation hand 32 transfers the re-sorting IC 1. The IC carrier 1 for re-sorting
The circulation form of 0 is the same as that of normal selection.

[0013]

As described above, according to the present invention, in the auto handler in which the IC carrier circulates internally, the stocker for re-sorting is arranged between the transfer paths of the IC carrier from the sorting unit to the supply unit. It is possible to automatically re-sort inside the auto handler without reloading the tray in the supply loader.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an auto handler according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of an auto handler according to a conventional technique.

[Explanation of symbols]

 1 IC 10 IC Conveyor 11 Supply Section 12 Preheating Section 13 Measuring Section 14 Sorting Section 15 Stocker 15A Recess

Claims (1)

[Claims] 1. The IC is provided in the IC carrier (10) in the supply section (11).
(1) are sequentially supplied, and the IC carrier (10) is a measuring unit (13).
After the test is completed, the IC carrier (10) moves to the classification unit (14), and the classification unit (14) moves to the IC based on the test result. The IC carrier (1
The IC (1) in (0) is sorted and the IC (1) is divided into a plurality of trays (20).
The IC carrier (10) is an auto handler in which the IC carrier moving to the supply unit (11) is circulated, and the stocker (15) is a recess (a) for accommodating a plurality of ICs (1). 15A), a stocker (15) is arranged between the transfer paths of the IC carrier (10) from the classification unit (14) to the supply unit (11), and the IC (1) for determining defective products in the classification unit (14) ) Is the stocker (1
When the stocker (15) is filled with the IC (1) and the stocker (15) is full, the empty IC carrier (10) that moves from the sorting unit (14) to the supply unit (11) determines the defective IC ( Autohandler with re-sorting stocker characterized by transferring 1)