JPH09266400A - IC insertion / extraction device - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide an automatic device for inserting / extracting an IC into / from a B / I board, which is performed before and after one B / T in an IC manufacturing process,
For a large number of manufactured IC types, the setup work time for inserting and extracting type changes is shortened, and the yield of IC manufacturing and the work efficiency are improved. SOLUTION: In an IC insertion / extraction device 4, an IC memory card selector 17 automatically changes a plurality of IC memory cards 16 in which previously taught work positions and work orders are stored and stored, by an operation from a device body control unit 7. .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to mounting an IC on a burn-in board [hereinafter referred to as B / I board] or a B / T before a burn-in test [hereinafter referred to as B / T] in an IC manufacturing process. The present invention relates to an IC insertion / extraction device used for subsequent IC extraction and classification storage.

[0002]

2. Description of the Related Art In the sorting process, which is one of the IC manufacturing processes, there is a process called B / T, which is important for quality assurance to screen all the manufactured ICs.
After mounting the ICs 2 in a plurality of sockets 3 arranged on a printed circuit board for electrical characteristics test called a board 1,
The B / I board 1 is housed in a B / T device, and B / T, which is a high temperature electrification acceleration test, is performed. After finishing B / T, B / I board 1
The ICs 2 are pulled out from the sockets 3 arranged above, sorted in the storage jig according to the grade of the ICs, and stored. B / I at this time
The IC insertion / extraction device 4 inserts / extracts the IC 2 into / from the socket 3 on the board 1.

IC2 in the IC insertion / extraction device 4 is
An example of a method of inserting into the socket 3 on the I board is called surface mounting type IC shown in FIGS. 5 to 7.
It will be explained based on item 2.

The surface-mounting type IC2 storage jig is called a tray 5, and the IC 2 stored in the positioned tray 5 is moved up and down and twisted by the rectangular coordinate system transfer device 6 of the IC insertion / extraction device 4. The socket 3 on the B / I board 1 positioned by the possible suction head 8
Insert inside and implement. At this time, the IC2 is adsorbed by the adsorption head 8, conveyed above the socket 3 to release the IC2 from the adsorption, and is dropped by its own weight, the IC2 is set at a predetermined position while following the insertion guide portion 3b of the socket 3,
The lead 2b of the IC 2 and the contact portion 3c of the socket come into contact with each other, and electrical conduction is obtained.

Further, the B / I board 1 includes the type of the IC 2, the package 2a shape, the external dimensions 2c or 2d, and the leads 2.
The type of the socket 3 and the printed circuit and electric wiring of the B / I board, which are arranged depending on the number of b's and the characteristic test conditions of the IC 2, are different from each other, so that the type of the B / I board 1 is various.

ICs currently manufactured by IC manufacturers
There are a large number of types of the two types, and the B / I boards 1 corresponding to them are also various types.
/ I have been forced to own an I-board. Therefore, I
In the C insertion / extraction device, various types of sockets 3 having various shapes and a wide variety of B / I boards 1 equipped with such sockets correspond to family register management, so
The positions of the sockets 3 on the / I board 1 and the B / I board 1 are used as insertion / extraction points 12, so to speak, the family register and address of the B / I board are classified and registered in the initial setting.

For such classification and registration, a method of expressing the distance from the reference point of the Cartesian coordinate system carrier 6 and the height of the insertion / extraction point 12 by X, Y and Z coordinates, respectively, is referred to as teaching. .

Next, the operation of the IC insertion / extraction device 4 will be described. In the IC insertion operation, the board positioning pin is brought into contact with the B / I board 1 conveyed to the IC insertion / extraction position portion 10 and the positioning cylinder is pressed to position the B / I board 1 in the X and Y directions.

Similarly, the positioning cylinder is pressed against the tray 5 that has been conveyed to the tray positioning section 11 before the B / T, that is, the tray 5 in which the IC 2 not yet B / T is stored, to perform positioning in the X and Y directions. I stored in order in the positioned tray 5
The position of C2 is regularly and sequentially stored as the operating position of the suction head 8 of the Cartesian coordinate system transport device 6. Similarly, the position of the socket 3 arranged on the B / I board 1 positioned at the IC insertion / extraction position portion 10 is regularly and sequentially stored as the operation position of the suction head 8 of the Cartesian coordinate system transfer device 6 and the initial value is set. Register as data.

Next, the suction head 8 of the rectangular coordinate system transfer device 6
, The IC 2 in the registered tray 5 is suction-held, the Cartesian coordinate system transfer device 6 is operated, and the B / I board 1 is moved.
The work of inserting into the upper socket 3 is sequentially repeated to perform the IC inserting work.

These individual I's arranged on the tray 5 are
Storing and registering the C position and individual positions (points) of the socket 3 arranged on the B / I board 1 and storing and registering the operation sequence (step) of the rectangular coordinate system transport device 6 are called teaching. .

On the other hand, after the B / T, the IC 2 mounted in the socket 3 on the B / I board 1 is sucked by the suction head 8 and pulled out from the socket 3, and the Cartesian coordinate system transfer device 6 is moved to move the B / T. Only the IC2e that passed in step 5 is released on the tray 5 and stored in the tray 5, and the IC that failed in B / T
The operation of accommodating 2f in the B / T defective IC storage 18 is sequentially repeated to perform IC extraction work.

As described above, the conventional IC insertion / extraction device is
Take out the IC2 stored in the tray 5 before
The work of inserting and mounting in the socket 3 arranged on the I board 1 is performed, and after the B / T, the IC 2 is pulled out from the socket 3, and the B / T pass IC 2e and the fail IC 2f are respectively placed in the tray 5 and the defective IC. The work of sorting and storing in the storage 18 was automatically performed.

On the other hand, a personal computer, which is a large customer of ICs,
In recent years, electronic devices such as facsimiles, copiers, and mobile phones have become smaller and lighter and thinner, and printed circuit boards that are built into electronic devices and control the devices are smaller and have higher packing density. In addition, it strongly demands that the components be made thin and mounted on both sides of the substrate.

In particular, with regard to the IC 2, there is a demand for high performance such as small size, thinness and high memory capacity, and high performance such as an increase in the number of leads in the same external dimension. For example, recent electronic devices include SOP [small size shown in FIG. 5 and thin lead 2b extending in two directions] and SOJ [small size shown in FIG.
Thin IC with lead 2b extending in two directions and shaped into a J shape]
FP [a thin type with leads 2b shown in four directions shown in FIG. 7] called a type (surface-mount type) IC mounted on the surface of a printed circuit board is being used in a large amount, and recent electronic devices are We are requesting IC manufacturers to mass-produce these surface-mount type ICs and supply them to the market.
It is said that this tendency will continue in the future.

[0016]

As described above, in recent years, as the size and weight of electronic equipment have been rapidly reduced and the performance thereof has been improved rapidly, the IC 2 used for them has also become smaller and thinner.
Higher performance is required. Therefore, specifically, IC
2 packages 2a are required to be smaller and thinner, the number of leads is increased (multi-lead), and the narrower lead pitch 2g (narrower pitch) is demanded and produced, and the number of IC types is greatly increased. Diversified.

Further, there is a unique IC type to be used depending on the type of electronic equipment, and there are numerous types of electronic equipment, and ICs are always used in the electronic equipment.
The variety of ICs is enormous, and it is said that the number will rapidly increase in the future.

The B / T is one of electrical characteristic tests,
This is a high-temperature energization acceleration test in which an IC is mounted in a socket on a B / I board and a current is applied for several tens of hours at high temperature. Since the type of B / I board corresponding to each IC type is determined, the IC
Manufacturers also have an enormous variety of B / I boards 1 corresponding to the enormous IC types 2.

Actually, in the IC manufacturing process, B /
Before attempting to insert an un-B / T IC2 into the socket 3 on the B / I board 1, find the B / I board 3 corresponding to the IC2, and in advance corresponding to the IC2 and the B / I board 1. Positions (points) and sequences (steps) relating to the registered IC insertion, that is, the teaching data is called and transmitted to the control unit 13 of the present device 4 and the controller 7 of the Cartesian coordinate system transfer device to perform the insertion / extraction work of a predetermined IC. It will be possible to do. Whenever the IC type is changed, the teaching data is called up each time, and the device 4
Control unit 13 and controller 7 of Cartesian coordinate system transfer device
It was necessary to transmit to.

Where to store, register, and store the enormous teaching data of the present device 13 and the Cartesian coordinate system transfer device 7 corresponding to the enormous types of B / I boards is a serious problem, and the IC type There is a problem of how to reduce the work time at the time of switching, and the insertion / extraction device manufacturer has been having a hard time.

[0021]

An IC insertion / extraction device according to the present invention is configured so that each IC point in a tray 5 positioning portion 11 accommodating an IC 2 which is not B / T and a B / T in which a socket 3 for mounting the IC 2 is arranged. Each point of the socket 3 in the IC insertion / extraction position portion 10 of the I board 1 and each IC,
The sequence (step) of inserting operation between both points of each socket, and the socket 3 at each position of the B / I board 1 in which the socket 3 having the B / T-completed IC 2 mounted is arranged and the position at which the empty tray is positioned An enormous teaching of various ICs such as each point of IC and B / T failure and re-inspection, each point of IC storage section in IC storage area, each IC after B / T, and the order of extracting and storing between both points of each socket The data is registered by dividing the IC type into groups, the teaching data of each group IC is registered and stored in a commercially available IC memory card, and for the IC type to be inserted or extracted by this IC insertion / extraction device, The corresponding IC memory card 16 is selected by the memory card selector 17, and the control unit 13 of this apparatus 4 and the rectangular coordinate system transfer. By transmitting to the controller 7 of the location, a short time subjected to type switching of IC, having means capable of performing insertion or sampling operations precisely.

Generally, transmission from the IC memory card 16 to the controller 7 of the Cartesian coordinate system transfer device is called download, and transmission to the IC memory card 16 to the controller 7 of the Cartesian coordinate system transfer device is called upload.

In addition, the automatic removal of the IC memory card 16 by the memory card selector 17 and the automatic transmission of the data stored therein to other control units, etc.
Called C memory card automatic changer.

[0024]

1 and 2 are perspective views of an entire IC insertion / extraction device showing an embodiment of the present invention and a perspective view for explaining a controller for a rectangular coordinate system transfer device and an automatic changer for an IC memory card. FIG. 3 is a diagram showing how to take out the tray 5, the storage point 12b and the B / I board 1.
It is an operation explanatory view of IC insertion work and extraction work about insertion and extraction point 12a of upper socket 3. In this embodiment, a vertical and twist movable shaft 6c having a suction head 8 at the tip is mounted on the Y-axis 6b of the Cartesian coordinate system carrier 6 in the vertical direction, and the Cartesian coordinate system carrier body 6 is placed on the upper surface of the gantry. , The Cartesian coordinate system transport device controller 7 is arranged in the under-cover of the gantry, and these are electrically connected by the connecting cable 9, and a plurality of sheets are provided near the front cover of the gantry on the side face of the Cartesian coordinate system transport device controller 7. An IC memory card 16 and a memory card selector 17 are provided, and teaching data surface-mounted on a printed circuit board 14 of the controller provided in the memory card selector 17 and the Cartesian coordinate system transfer device controller 7 are stored, Memory I to store
The C15 is electrically connected so that various data can be transmitted. Further, the IC memory card is a commercially available product, which is inexpensive, and its storage capacity is said to be 256 kilobytes. In the embodiment, one sheet can store teaching data of about 10 IC types, for example, as shown in FIG. If you can set the IC memory card selector, you can store data for about 50 IC types. Others are the same as conventional ones.

[0025]

According to the present invention, the controller, the IC insertion / extraction device main body control unit, the operation panel, and the IC memory card selector 17 are provided near the controller 7 of the Cartesian coordinate system transfer device so that teaching data can be transmitted. By connecting a plurality of IC memory cards storing and storing the teaching data to the IC memory card selector 17, when switching IC types to insert or remove many types of ICs with this IC insertion / extraction device, IC can be transmitted only from the main body control unit and operation panel
By the card selector 17, the IC memory card 16 storing the teaching data corresponding to the IC to be switched can be selected and automatically loaded, that is, automatically changed, so that the apparatus setup time for switching the IC type can be greatly increased. There is an effect that an IC insertion / extraction device that can be shortened and does not make a mistake in the switching operation can be obtained, and an inexpensive IC insertion / extraction device that uses a commercially available IC memory card can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of an IC insertion / extraction device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an IC insertion / extraction device showing an embodiment of the present invention.

FIG. 3 is an explanatory view of an operation of taking out an IC from a tray and inserting it into a socket on a B / I board, and an operation of taking out from the socket and storing it in the socket.

FIG. 4 is an explanatory diagram of an operation of inserting an IC into a socket on a B / I board.

FIG. 5 is an explanatory diagram of a package and a lead of an SOP which is a type of surface mount type IC.

FIG. 6 is an explanatory diagram of a SOJ package and a lead, which is a type of surface mount type IC.

FIG. 7 is an explanatory diagram of a QFP package and a lead, which is a type of surface mounting type IC.

FIG. 8 is a top view of an IC insertion / extraction device showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... B / I board, 4 ... IC insertion / extraction device, 5 ... Tray, 6 ... Cartesian coordinate system conveyance device, 7 ... Controller, 8 ... Suction head, 9 ... Cable, 13 ... Device main body control section and operation panel, 16 ... IC memory card, 17 ... IC memory card selector, 19 ... B / I board loader / unloader, 20 ... Tray loader / unloader.

Continuation of the front page (72) Inventor Rim Shoten 800 Tomita, Ohira-cho, Shimotsuga-gun, Tochigi Prefecture Hitachi Co., Ltd.

Claims (1)

[Claims] 1. A tray positioning unit for mounting a head for picking up an IC on a Cartesian coordinate system transfer device capable of vertical and twisting operations, and a tray positioning unit for carrying and positioning a tray for storing the IC, and for mounting the IC. An IC insertion / extraction device main body which has an IC insertion / extraction position portion for carrying and positioning a burn-in board provided with a socket and a plurality of IC memory cards for storing data in which the operation position and operation sequence of the Cartesian coordinate system transportation device are previously taught. A control unit and a transmission-storable storage and storage unit are provided, and the IC memory card corresponding to the IC type is automatically selected and automatically loaded by an operation from the IC insertion / extraction device body control unit. Above I
An IC insertion / extraction device having a function of operating the above-described Cartesian coordinate system conveying device according to the data output from the C memory card to perform IC insertion / extraction and storage work.