KR20020000926A - Tray transferring system - Google Patents

Abstract

PURPOSE: A transfer system for circulating a tray loaded with a module integrated circuit(IC) is provided to increase test efficiency by a module IC handler regarding a plurality of completed module IC's, by transferring and circulating a plurality of trays positioned in a loading part and an unloading part. CONSTITUTION: The loading part and the unloading part manufactured to have a predetermined depth by a frame(f) are formed in a main body of the module IC handler for testing the completed module IC's. A pellet(1) is installed in the bottom of the loading and unloading parts, moving up/down by a moving-back/forth and up/down unit of a driving unit(11). A fixing unit(3) which grips or releases both sides of the tray by the operation of a cylinder(31) is installed in a higher position from the upper surface of the pellet located in operation parts(a,b) of the loading part and the unloading part by the height of the one tray. A stopper unit(4) with a one-directional stoppers(41) facing each other is formed in a lower portion of supply parts(a',b') of the frame having the same height as the tray. A tray transfer unit(5) which moves back/forth and up/down on a guide bar by the operation of the driving unit while both ends of the tray are gripped by a gripping unit(52) so that the tray supplied upward from the supply units is transferred towards the operation parts and is installed on the loading and unloading parts of the frame.

Description

Module IC Loading Tray Circulation Transfer System {Tray transferring system}

The present invention relates to a modular IC loading tray circular transfer system,

More specifically, for testing a plurality of finished module ICs, the module IC handler is supplied to the module IC handler in a state in which a plurality of module ICs are collected in a certain number of units in the loading part of the module IC handler, or the tested module ICs are tested. In the unloading part, the circulating conveyance of a plurality of trays sequentially supplied to the loading part and the unloading part of the module IC handler in order to be discharged from the module IC handler to the outside in a state where it is collected in a certain number unit. The trays are sequentially supplied to the uppermost side of the module IC handler by being connected to the working part and the supply part of the loading and unloading part so that the test or collection process for the module IC can be performed quickly and stably.

In general, module ICs, which consist of circuits independently fixed by fixing ICs and components on one or both sides of the board, are mounted on the main board and have a function of expanding capacity or function. Since each completed IC has higher added value than sold individually, the IC manufacturer develops and sells it as a main product.

Module ICs with high added value, which are assembled and manufactured sequentially through the manufacturing process, are very important because of their high price and are subject to strict quality testing. As a result, only products that are judged to be good Module ICs that are shipped as a finished product and judged to be defective are collected separately, modified and tested again or discarded entirely.

In order to test the quantity and defectiveness of high value module ICs produced in this way, a plurality of module ICs produced as a unit are inserted into each tray and sequentially supplied to the loading unit of the module IC handler as a test equipment. The purpose of the module IC was to make a test. Also, in order to discharge the tested module ICs out of the module IC handler, the bin trays were sequentially supplied to the unloading part of the module IC handler. The module IC is moved to a tray so that it can be discharged out of the module IC handler.

However, the conventional tray transfer system for automatically transporting the tray containing or containing the module IC for testing the produced module IC as described above automatically in the loading unit and the unloading unit is a loading unit and an unloading unit to which the tray is supplied. The module IC for the tray in the loading section and the unloading section is installed by lifting and lowering means, such as an elevator, which lifts and lowers the tray to be supplied to the double-loading section, or the tray containing the module IC therein is discharged to the outside. Take out and insert the work, and alternatively, use a separate transport robot to lift the supplied tray and move it to the loading part, or for the tray that has finished the work in the loading part, also move the transport robot to the unloading part. To achieve a sequential circular transfer of the desired trays Bar, according to the conventional tray transfer means, the number of steps to achieve the sequential transfer, circulation to the tray is required to not only decrease the test efficiency for the finished module IC, the transfer robot, etc. There was a problem that the production cost of the product was required to be expensive, and the production cost of the product was increased, and the overall productivity of the test equipment could be caused due to frequent failures. .

Accordingly, an object of the present invention is to solve the problems of the conventional tray circulation transfer means as described above, the module IC is mounted or empty in the loading and unloading of the module IC handler for testing the finished module IC It is possible to make the target test work smooth and stable by allowing the trays of the trays to be moved up and down in each of the loading and unloading parts so that a plurality of trays are sequentially and sequentially transferred to the working parts. To provide a modular IC loading tray circulation transfer system that can be made accurately.

1 is a schematic perspective view showing the configuration of a system according to the present invention;

2 is a schematic plan view of a modular IC handler to which the system according to the invention is applied;

3A to 3H are explanatory diagrams showing a circulating conveyance state of a tray by the system of the present invention.

※ Explanation of symbols for main parts of drawing

A: loading part B: unloading part a, b: working part

a´, b´: Supply part f: Frame t: Tray

1: pallet 3: fixing means 4: stopping means

5 tray feed means 11, 51 drive means 12 lifting means

31 cylinder 41 one-way stopper 52 holding means

In order to achieve the above object, the module IC loading tray circulation transfer system according to the present invention, the loading unit (A) is formed to have a predetermined depth by the frame body (f) in the module IC handler body for testing the finished module IC ) And inside each of the unloading section B,

The pallet 1 is installed at the bottom of the pallet 1, which is moved up and down by the driving means 11, and moves up and down by the elevating means 12, and the work of the loading portion A and the unloading portion B is performed. Fastening means (3) for engaging or releasing both sides of the tray (t) by actuating the cylinder (31) from the upper side of the tray (1) from the upper surface of the pallet (1) below the portion (a) (b) At the same time as the lower side of the supply part (a ') (b') of the frame (f) of the same height is provided with a stop means (4) provided with a one-way stopper (41), the upper surface of the frame (f) On the loading part A and the unloading part B of the clamping means 52 for conveying the tray t fed upwardly from the supply part a '(b') to the working part a) (b) side. It is characterized in that the tray feed means (5) for horizontally moving back and forth on the guide rod 52 by the operation of the drive means in the state sandwiching both ends of the tray (t) by All.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art can easily implement the present invention.

1 is a schematic perspective view showing the configuration of a modular IC loading tray circulation transfer system according to the present invention, Figure 2 is a schematic plan view of a modular IC handler to which the system according to the present invention is applied, Figures 3a to 3h An explanatory view showing a circulation transfer state of a tray by the circulation transfer system of the present invention, wherein the structure is largely composed of a frame body (f), a pallet (1) provided in the frame body (f), a fixing means (3), It consists of a stop means 4 and a tray feed means 5.

The frame f is formed at a predetermined depth in the module IC handler main body so as to have a predetermined size of space, so that the loading part A or the unloading part B is formed.

The loading part A or the unloading part B (formed by the frame f) (hereinafter, the two loading parts A and B) will be described by taking only one loading part A as an example. ) Is composed of a working part (a) and a waiting part (a´), and the tray (t) is the uppermost part from the waiting part (a ') to the working part (a) with a plurality of trays (t) installed therein. In the lowermost part, the waiting part a 'side is sequentially transferred from the working part a one by one.

The pallet 1 is moved back and forth by the transfer means 11 while the tray t is placed on the upper surface of the lower portion of the loading portion A formed by the frame body f. It is installed so as to move up and down in the sea, and for the first time, a plurality of trays (t) are placed on its upper surface to be transported to the work part (a) side or the tray (t) downloaded from the work part (a) to the supply part (a ') side. To be transported.

The fixing means (3) is installed on the lower side of the working portion (a) forming the loading portion (A) from the upper surface of the pallet (1) by the tray (t) one in the opposite position to each other in a plurality of cylinders (31) A plurality of trays (t) located on the upper side of the sandwiched tray (t) by holding or sandwiching both sides of the tray (t) by operation to stay in the work area (a) At the same time, the desired work on the tray t on the side is carried out, and at the same time, the finished tray t is sequentially lowered onto the pallet 1 and sequentially transferred to the supply part a 'by the pallet 1. I am trying to.

The stopping means 4 is provided at the same height as the clamping means 3 provided below the working part a, below the supply part a 'forming the loading part A, and is also mutually A plurality of one-way stoppers 41 supported by springs in opposite postures are provided so that the tray t, which is conveyed from the working part a to the lower part of the supply part a 'by the pallet 1, is supplied again to the supply part a. ´) pushed upward to supply the tray t with both ends of the tray t passing through the one-way stopper 41 and the lower end of the tray t being caught by the one-way stopper 41. Since the downward movement is prevented by the stopper 41, the tray t supplied in this way can only move upward from the lower side of the supply portion a ', and the downward movement is performed in the one-way stopper 41. Is made impossible by the presence of It is possible to make circular transfer to the supply part a 'with respect to the tray t sent.

The tray conveying means (5) is installed on the upper portion of the loading portion (A) of the frame (f) so that the tray (t) can be sequentially transported one by one from the supply portion (a ') to the working portion (a) ,

The guide rod 52 is operated by the operation of the driving means 51 in the state of sandwiching the tray t located at the uppermost side of the supply part a 'by the operation of the clamping means 52 which clamps both ends of the tray t. Take a) and move horizontally to the work part (a) to release the tray (t) that was in the pinching state, and finally, one tray (t) is fed from the supply part (a´) to the work part (a). A predetermined operation for testing such as taking out operation of the module IC on the tray t is performed.

The operational operation state of the modular IC loading tray circulation transfer system of the present invention having the above configuration will be described.

Production of the loading unit (A) is completed to install a plurality of trays (t), for example, 20, a plurality of modules IC for a certain number of tests for installation,

In this case, the pallet 1 is driven by driving the conveying means 11 in a state in which the first half of them is stacked on the pallet 1 positioned below the supply part a 'as it is. After the transfer to the side, by operating the lifting means 12 installed under the pallet (1) to raise the pallet (1) as it is and at the same time to operate the fixing means (3) installed below the working part (a), fixed A cylinder 31 horizontally moved outward from the means 3 operates to sandwich and fix both ends of the tray t located at the bottom of the plurality of trays t located on the pallet 1. The ten trays t are positioned in the space of the work part a inside the frame f in a stacked state.

When the ten trays t are stacked in the work part a by the fixing means 3, the pallet 1 which has been raised is returned to its original position by the operation of the elevating means 12. At the same time as it is lowered and moved back to the supply (a ') by the operation of the conveying means (11).

When the pallet 1 is conveyed to the supply part a 'in an empty state, the remaining 10 trays are placed on the pallet 1 in a stacked state, and then the lifting means 12 below the pallet 1 are placed. Stopper means to raise the pallet (1) by one step as it is, the lower tray (t) of the plurality of trays (t) located in the stacked state on the pallet (1) is provided below the supply (a ') At the same time as passing through the one-side stopper 41 of (4), the pallet 1 stops its upward movement, and at the same time, many trays t located in the supply part a 'stop the bottom tray t. The state of being laminated by the means 4 can maintain the laminated installation state.

The finished module in which the module IC handler is loaded in the tray (t) in a state in which the supply of the tray (t) to the work part (a) and the supply part (a´) forming the loading part (A) of the module IC handler is completed. Take out the module IC for testing the IC or reload the loaded module IC or the tested module IC to the tray t or unload the B to the top of the working part a. When the predetermined operation for one tray (t) located is finished. The new tray (t) should be supplied instead of the finished tray (t) at the top of the working part (a),

This is caused by the operation of the elevating means 12 in a state where the pallet 1, which is in the standby state under the supply portion a ′, is moved to the lower side of the work portion a by driving the transfer means 11. When the upper surface comes in contact with the lower surface of the lower tray (t) of the tray (t) located on the work part (a) side, the lower end of the tray (t) is sandwiched and fixed as the cylinder (31). The fixing means (3) is operated to release the clamping state of the lowermost tray (t), so that the plurality of trays (t) is simply placed on the upper surface of the pallet (1).

Then, when the lifting means of the pallet 1 is operated to lower the pallet 1 by one step, the trays t on the pallet 1 are also lowered. At this time, the fixing means 3 which is in the released state is operated again and the lowermost part is operated. While both ends of the tray t positioned immediately above the tray t are pinched and simultaneously, the pallet 1 moves toward the supply part a ', so only one tray t is moved toward the supply part a'. Will be transferred.

Thus, while the operation of conveying one tray t from the lower part of the work part a to the supply part a 'by the operation of the pallet 1 is performed, one tray t is also provided on the upper part of the supply part a'. The operation of transferring the feed from the supply (a ') to the working part (a) is performed at the same time, which means that the pallet (1) moves from the working part (a) to the feeding part (a') and at the same time the tray conveying means (5). In the state where the clamping means 52 of the clamping means 52 pinches both ends of the tray t located at the uppermost part of the supply part a 'and rides the guide rod 52 by the operation of the driving means 51 as it is. After moving to the side, the sandwiching means 52 operates to position the tray t in the form of being placed on the tray t, which is already located in the work part a, and then a new tray for work ( t) is supplied to the working part (a) so that the desired work continues.

As described above, the module IC stack tray circulating transfer system of the present invention returns to the empty tray for discharging the loaded module A to which the module IC is supplied for testing the finished module IC and the tested module IC to the outside of the module IC handler. Pallets for conveying and raising the tray 1 are formed at the lower part by forming the working parts (a) and (b) and the feeding parts (a ') and (b') in communication with each of the unloading parts (B) to be loaded. 1), the conveying means 5 is installed on the upper part so that the pallet 1 and the conveying means 5 move in opposite directions at the same time, respectively. And, by feeding from the feed part a 'to the work part a, accurate and rapid feed to a number of trays t (20 in this example) located in the loading part A and the unloading part B It is trying to make the cycle happen.

In the above configuration, the number of trays (t) to be installed in the above configuration is explained by using 20 pieces in the work part a and 10 pieces in the supply part a 'as an example, but the work part a and the supply part a' are described. If the number of trays (t) located in the same condition to install the number of installation is not limited,

In addition, in the present example, the tray t is circulated from the working part a and the supply part a ′ of the loading part A, but the working part b and the supply part of the unloading part B have been described as an example. The configuration and operation for (b´) are also the same as those made in the working part (a) and the supply part (a ') of the loading part (A), and thus the detailed description thereof is omitted in this example, and the loading part (A) Both the and the unloading unit B have the same configuration and operation, so that a predetermined work on the target tray t is smoothly performed.

As described above, although the present invention has been described with reference to the above embodiments, it is not necessarily limited thereto, and various modifications may be made without departing from the scope and spirit of the present invention.

As can be seen from the above description, according to the module IC loading tray circulation transfer system of the present invention, the working part and the supply part are formed in communication with the loading part and the unloading part of the module IC handler in which the test is performed on the completed module IC. The tray at the bottom of the work side is transported from the work side to the feed side by the lifting, lowering and horizontal conveying operation of the pallet while the multiple trays are stacked in the same number, respectively. It is possible to circulate and transfer a number of trays located in the loading and unloading sections by a series of operating cycles that are transferred from the supply section to the work section by the horizontal transfer operation of the work waiting time for each tray. It is possible to expect stable operation in an unnecessary state, so that the module for a large number of completed module ICs It can increase the test efficiency by the module IC handler, thereby increasing the overall productivity of the semiconductor, thereby lowering the manufacturing cost.

Claims (1)

In constructing the module IC loading tray circulation transfer system for testing the finished module IC, In each of the loading portion A and the unloading portion B, which are formed to have a predetermined depth by the frame body f in the module IC handler body for testing the finished module IC, the driving means ( 11) by installing the pallet (1) to move up and down by the forward and backward and elevating means (12), the working portion (a) (b) of the loading portion (A) and unloading portion (B) At the same time as the tray (t) from the upper surface of the lower pallet (1), the upper portion of the tray (t) by the height of the upper side of the tray (t) by the operation of the cylinder (31) to engage or pinch or release the pinning (3) A stopper 4 having a one-way stopper 41 is provided below the supply portion a '(b') of the frame f having a height, and the loading portion A on the upper surface of the frame f is provided. On the unloading part B, the tray t is fed by the clamping means 52 to transfer the tray t, which is fed upward from the supply parts a 'and b', to the working part a and b side. In that the tray feed means (5) while holding the both ends of the horizontal movement before and after riding guide rod 52 by the drive means operating hayeoseo installation module Damn, characterized stacking tray circulating transport system according to.