KR20190061291A - Handler for testing electronic components testpicking and method of operating the same - Google Patents

Abstract

The present invention relates to a handler for testing electronic components. According to the present invention, the handler for testing electronic components can support testing of electronic components having the large size such as an SSD and having electrical contacts on one side end, by applying a transfer, a tray mover, a tray feeder, and a tray positioning device. According to the present invention, a new type of handler which supports the testing of electronic components having the large size such as an SSD and having electrical contacts on one side end.

Description

TECHNICAL FIELD [0001] The present invention relates to a handler for testing electronic components and a method of operating the same.

The present invention relates to a handler for supporting testing of electronic components.

The produced electronic components (for example, semiconductor devices, substrates, SSD, etc.) are tested by a tester and then divided into good and defective parts, and only good parts are shipped.

An electronic component can only be tested when it is electrically connected to a tester, and the handler is a device that enables the electronic component to be tested by electrically connecting the electronic component to the tester.

The handler is proposed and manufactured in accordance with the development of new electronic parts as described in Korean Patent Laid-open Nos. 10-2016-0045161 and 10-2015-0123377, and various subsequent developments for stabilization are being made.

On the other hand, solid state drives (SSDs) are becoming popular in recent years.

When the demand is small and only a small amount is produced, the SSD is electrically connected to the tester by manual operation and the connection is disconnected and classified according to the test grade. However, as the demand of the SSD is increased, it is difficult to support the test by hand.

Therefore, it is expected that a handler capable of supporting SSD test automatically in the near future is expected. However, the thickness, structure, and weight of the SSD are different from those of the conventional electronic parts, so that the conventional handler can not be applied as it is. It is necessary to create one handler.

The present invention relates to an electronic device, such as an SSD, which is large and is inserted into a slit of a test socket, thereby electrically connecting an electronic component electrically connected to a test socket to a tester, And to provide a new handler.

The handler for testing electronic parts according to the present invention includes a stacker part for supplying a customer tray containing electronic parts to be tested or retrieving a customer tray containing electronic parts for which testing has been completed; A tray transfer device for transferring a customer tray from the stacker portion to the front of a plurality of rows of testers in the left-right direction or transferring a customer tray containing tested electronic components to the stacker portion; A plurality of tray positioners for placing a customer tray on which electronic parts to be tested to be tested are placed on the tray transporting device or an electronic part for which a tested test is finished, A picking apparatus for picking up electronic components to be tested from a customer tray positioned by the plurality of tray positioners and electrically connecting the electronic components to a tester, ; Wherein the stacker portion includes a plurality of stacks arranged in a plurality of rows in the forward and backward directions to supply a customer tray loaded with electronic components to be tested, Curlers; And a relay device for relaying customer trays between the stackers and the tray transfer device; .

A lifting device for lifting a customer tray transferred by the tray transfer device to supply the plurality of position devices to the plurality of position devices and moving the customer tray to be withdrawn from the plurality of position devices to the tray transfer device; And the elevators are provided below the tray transfer device.

The relay device includes: a tray mover having a moving belt for moving a customer tray in a back and forth direction; A transfer for moving a customer tray from the stackers to the tray mover or moving a customer tray from the tray mover to the stackers; And elevators for raising and lowering a customer tray placed on the moving belt for smooth movement of the customer tray by the tray moving device; .

An atmospheric apparatus provided at one side of the tester and capable of waiting electronic components; Wherein the standby device has gripping grooves into which a part of the electronic components can be inserted, and the picking device inserts an electronic part requiring air into the holding groove of the standby device.

The handler further includes a connector for connecting a new tray transfer device in parallel to the tray transfer device so that the handlers can be additionally arranged in the lateral direction.

The tray transfer device may be provided in a plurality of forward and backward directions.

The tray transfer apparatus has a transfer boat for transferring a customer tray, and the transfer boat has a through hole through which a customer tray can pass in a vertical direction.

A method of operating a handler for testing electronic components according to the present invention includes a first step of electrically connecting an electronic component and a tester by supplying an electronic component to be tested in a supply stacker to a tester; And a second step of recovering the electronic components, which have been supplied to the tester by the supplying step and then have been tested, to the recovery stacker; A first step of moving the customer tray in the supply stacker to a supply and recovery position; A first step of transferring a customer tray at a supply and recovery position to a position below a supply setting position; A step 1-3 of raising the customer tray below the supply setting position to the supply setting position; (1-4) rotating the horizontal electronic component held by the picking device after grasping the electronic component from the customer tray at the supply setting position; And a fifth step of electrically connecting the vertically-positioned electronic component to the tester, wherein the picking device electrically connects the vertically-positioned electronic component to the tester, A second step of rotating in a horizontal state; A step 2-2 in which the picking device moves the horizontal electronic component to the customer tray at the rotation setting position; A second step of lowering the customer tray downward when the tested electronic parts are filled in the customer tray at the recovery setting position; (2-4) transferring the lowered customer tray to the supply and collection position; And (2-5) moving a customer tray at a supply and recovery position to a recovery stacker; .

According to the present invention, it is possible to implement a new type of handler that supports testing of electronic parts such as SSD which are large and have electrical contact terminals on one side.

1 is a reference diagram for explaining an electrical connection structure between an electronic component and a tester.
2 is a schematic structural view of a handler for testing electronic components according to an embodiment of the present invention.
3 is a schematic diagram of the stacker applied to the handler of FIG.
Fig. 4 is a schematic view of a lift applied to the handler of Fig. 2;
5 is a schematic plan view of a transfer boat constructed in the tray transfer apparatus applied to the handler of Fig.
6 is a schematic view of a tray positioner applied to the handler of FIG.
7 is a schematic plan view of the grip levers in the tray positioner of Fig.
8 is an example of an extension to the handler of Fig.
FIG. 9 is an application example to the handler of FIG.
FIG. 10 is a reference diagram for explaining a coupling relation between the handler and the tester of FIG. 2; FIG.

Preferred embodiments according to the present invention will be described with reference to the accompanying drawings, but for the sake of brevity of description, descriptions of redundant or substantially identical configurations are omitted or compressed as much as possible.

<Explanation of Electrical Connection between Electronic Components and Tester>

The handler according to the present invention is more suitably applied when the contact terminal side portion of the electronic component such as the SSD is inserted into the test socket of the tester.

1, a test socket TS having a slit S is provided in the tester, and a portion of the electronic component ED on the side of the terminal T is inserted into the test socket TS. As a result, The part (ED) and the tester are electrically connected.

<Description of Handlers>

FIG. 2 is a schematic structural view of a handler (hereinafter, referred to as a 'handler') for testing electronic components according to an embodiment of the present invention.

The handler HR according to the present embodiment includes a stacker portion 100, a tray conveying device 200, six elevating devices 310 to 360, six tray positioners 410 to 460, 500, a standby device 600, and a connector 700.

The stacker portion 100 is provided to supply a customer tray containing electronic components to be tested or to collect a customer tray containing tested electronic components, and the stackers 111 to 114 and the relay device 120, .

The stackers 111 to 114 are provided to collect and store a customer tray containing electronic components that have been stored or tested before supplying the customer tray containing electronic components to be tested. These stackers 111 to 114 are arranged in a multi-stage manner in four rows in the vertical direction and seven rows in the front-rear direction. Of course, depending on the implementation, the stackers 111 to 114 may be arranged in fewer or more than seven rows in consideration of the size and processing capacity of electronic components, .

All the stackers 111 to 114 can house a plurality of customer trays (CTs) and push the stored customer tray (CT) dummies to the right or retrieve the collected customer tray (CT) The dummies can be moved to the left. To this end, the stackers 111 to 114 include a stacking frame LF capable of loading a customer tray CT and a moving source MS capable of moving the stacking frame LF in the lateral direction. Of course, the stack frame (LF) of all the stackers 111 to 114 can be further moved to the left for convenience of feeding or retrieving the customer tray (CT) to the stackers 111 to 114 It can be fully considered to be implemented.

And the stackers 111 to 114 of each column can be determined for each application to maximize the processing capacity as in the present embodiment.

The stackers 111 of the first and second rows are provided to supply a customer tray (CT) containing electronic components to be tested. Therefore, in this embodiment, the stackers 111 in the first and second rows can be referred to as a supply stack channel.

The stackers 112 of the third to fifth columns are provided to recover a customer tray (CT) containing electronic components that are determined to be good after the test is terminated.

The stackers 113 of the sixth column are provided to supply the empty customer trays CT of the electronic components whose tests have initially been completed.

The stacker 114 in the seventh column is provided to recover a customer tray (CT) containing electronic components that are determined to be defective or subjected to retest after the test is terminated. The stackers 113 to 115 of the third to fifth columns mentioned above together with the stacker 114 of the seventh column are used for the purpose of collecting the customer tray (CT) containing the tested electronic components It can be called the recovery stack color at the point.

The relay apparatus 120 relays customer trays (CT) between the stackers 111 to 114 and the tray transfer apparatus 200 with the supply and return position (SRP) as a transfer point. To this end, the relay apparatus 120 includes a tray mover 121, a transfer 122, and elevators 123a to 123c.

 The tray movement device 121 moves the customer tray CT in the forward and backward directions and has a pair of moving belts 121a-1 and 121a-2 and a rotation source 121b.

The pair of moving belts 121a-1 and 121a-2 are spaced apart from each other by a predetermined distance in the left-right direction, and the conveyor belt to be.

The rotation source 121b may be provided as a normal / reverse rotation motor, and rotates the pair of moving belts 121a-1 and 121a-2 in normal and reverse directions.

The transfer 122 holds the customer tray CT of the stackers 111 and 113 and then places the customer tray CT on the moving belts 121a-1 and 121a-2 or puts them on the moving belts 121a-1 and 121a- The tray CT is gripped and moved to the stacker 112 (114). Of course, it is also possible to transfer the customer tray CT of the stackers 111 and 113 directly to the tray transfer apparatus 200 or to transfer the transfer tray 200 from the tray transfer apparatus 200 directly to the stackers 112 and 114 122 may be preferably controlled.

The elevators 123a to 123c raise and lower the customer tray CT placed on the moving belts 121a-1 and 121a-2 for smooth movement of the customer tray by the tray moving device 121. These elevators 123a to 123c are provided below the conveyance belts 121a-1 and 121a-2 and may be constituted by a support plate SP and a lift source UD as shown in FIG.

The support plate SP can support the customer tray CT and has a width smaller than that of the pair of the moving belts 121a-1 and 121a-2 so that the pair of moving belts 121a-1 and 121a -2). &Lt; / RTI &gt;

Seung Kwan Won (UD) lifts the base plate (SP).

When the customer trays CT that require movement in the forward and backward directions and the customer trays CT that do not need to move in the forward and backward directions are placed together on the moving belts 121a-1 and 121a-2, the elevators 123a to 123c, The user tray (CT), which does not need to be moved, is lifted, so that only the customer tray (CT) requiring the movement can be moved to the required position by the operation of the tray mover (121).

The elevator 123c in the vertical supply and recovery position SRP elevates the customer tray CT placed on the moving belts 123a to 123c to transfer it to the tray transport apparatus 200 or to move the tray transport apparatus 200 The user trays CT are lowered to the supply and recovery positions SRP by the rollers 121a-1 and 121a-2.

The tray transport apparatus 200 has a function similar to that of the tray moving apparatus 121. The tray transport apparatus 200 moves the customer tray CT from the stacker section 100 in the leftward and rightward direction in front of the plurality of rows of tester TTs, The customer trays CT are moved in the left and right direction to transport the customer trays CT loaded with the electronic components that have been transported downward or the tested parts SP1 to SP6 to the stacker portion 100. [ To this end, the tray transfer apparatus 200 includes a transfer belt 210, a moving boat 220, and a transfer source 230.

The conveyor belt 210 moves the conveying boat 220 in the left and right direction by rotating the left and right ends of the conveyor belt 210 in the forward and reverse directions to the turning point.

As shown in FIG. 5, the conveying boat 220 is provided to convey two customer trays CT at a time, and has a pair of through holes TH through which the customer tray CT can pass in the up and down directions. Thus, the customer tray CT can be raised from the lower side of the conveying boat 220 through the through hole TH or down from the upper side of the conveying boat 220. Of course, the conveying boat 220 is provided with supporting devices 221 capable of supporting the left and right ends of the customer tray CT or releasing the support.

The pedestal 221 is in a state of being supported to prevent the dropping of the customer tray CT carried on the conveyance boat 220 or to release the support state so that the customer tray CT can pass through the through hole TH . The positioning device 221 is substantially the same as the structure for holding or releasing the customer tray CT in the tray positioning devices 410 to 460 described later. Accordingly, the description of the position devices 410 to 460 do.

For reference, the tester TT is provided with four rows in the left and right directions, but may be provided with fewer or more rows than the four rows as required, or may be provided in multiple stages in the vertical direction. As described above, in order to be electrically connected to the electronic component, a plurality of long slits S are vertically formed in each tester TT.

The six lift apparatuses 310 to 360 raise or lower the customer tray CT to supply the customer tray CT of the conveyance boat 220 to the tray position apparatuses 410 to 460, The customer tray CT to be retrieved is moved downward to the conveying boat 220. [ Since the elevating devices 310 to 360 have the same structure as the elevating devices 123a to 123c described above, their description will be omitted.

The six tray positioners 410 to 460 are positioned above the conveyor belt 210 in front of the tester TTs provided in four rows in the left and right direction and more specifically, 360 and one-to-one correspondence with the elevating devices 310 to 360. The tray positioners 410 to 460 position the customer tray (CT) on which electronic parts to be tested are mounted or the tested electronic parts on the empty customer tray (CT) on the set positions (SP1 to SP6) . 6, the tray positioners 410 to 460 are provided with a grip lever GL and a wave support GS.

The grip lever (GL) grips the left and right ends of the customer tray (CT), but releases the grip.

The wave support GS allows the user's tray CT to be grasped by the grasping lever GL by releasing the both grasping levers GL by a predetermined distance in the left-right direction, or the grasping thereof can be released.

In addition, the tray positioners 410 to 460 align front, rear, left and right positions of the customer tray CT by the grip lever GL as shown in the plan view of FIG. 7, for proper operation of the picking apparatus 500.

On the other hand, by dividing the above-mentioned setting positions (SP1 to SP6) in detail, the supply setting positions (SP1 and SP2) where the customer tray (CT) (SP3 to SP6) where the empty customer tray (CT) is located. Accordingly, the tray positioner apparatuses 410 and 420 position the customer tray (CT) containing the electronic components to be tested in the supply setting positions S1 and S2, respectively, and the tray positioner apparatuses 430 to 460, And places the empty electronic trays in the empty customer tray CT at the recovery setting positions S3 to S6. Here, in the recovery setting positions of the symbols SP3 to SP5, the empty customer tray CT is positioned where the electronic components that have been judged to be good among the tested electronic components are located, and at the recovery setting position of the mark SP6, (CT) of the electronic components which are judged to be defective or retested are located in the empty customer tray (CT). It goes without saying that the respective setting positions SP1 to SP6 may be mutually changed for convenience of operation and control.

The picking apparatus 500 grasps the electronic components to be tested from the customer tray CT located at the supply setting positions SP1 and SP2 and electrically connects them to the tester TT, And moves to the empty customer tray (CT) in the recovery setting positions (SP3 to SP6) by classifying it according to the test class.

The picking apparatus 500 is provided so as to change the posture of the customer tray CT in a horizontal state held in a vertical state or to change the posture of the customer tray CT in a vertical state in a horizontal state. This is because it is necessary to change the posture in a vertical state in order to insert an electronic component horizontally placed in the customer tray (CT) into the slit (S) of the tester (TT). Such a picking apparatus 500 is proposed by the applicant of the present application filed earlier in the specification of Patent Application No. 10-2017-0145931, and a detailed description thereof will be omitted.

The standby device 600 is provided on the left side of the tester TTs in the left column and is provided for waiting electronic components. To this end, the standby device 600 has gripping grooves GS into which a part of the electronic parts can be inserted, and the picking device 500 moves the customer tray CT in the set positions SP1 to SP6, The electronic device may be inserted into the holding groove GS of the standby device 600 to be in the standby state and perform other operations. Of course, when the standby state is released, the picking device 500 moves the electronic components in the standby device 600 to a required position.

The connector 700 allows the processing capacity of the handler HR to be extended by further connecting a new tray transfer apparatus 200 to the right side of the tray transfer apparatus 200. This will be described later.

<Explanation of how the handler works>

The handler HR supplies the electronic component to be tested in the supply stacker 111 to the tester TT to electrically connect the electronic component and the tester TT or supply the electronic component to the tester TT, And returns the recovered electronic components to the recovery stacker 112, 114. This is described in more detail in terms of the movement (supply and recovery) of electronic components.

1. When supplying electronic components to be tested

end. When the supply stacker 111 pushes the customer tray (CT) pile rightward, the transfer 122 grips the customer tray CT in the supply stacker 111 and then moves to the tray mover 121 . The transfer at this time means that the customer tray CT held by the transfer 122 is placed on the moving belts 121a-1 and 121a-2 of the tray moving device 121.

I. The tray mover 121 moves the customer tray CT received from the transfer 122 to the supply and return position SRP.

All. The elevator 123c raises the customer tray CT at the supply and return position SRP and sends the customer tray CT to the tray transfer apparatus 200 by loading the transfer tray 220 in the transfer boat 220. At this time, the ascending customer tray CT is lifted through the through hole TH of the conveying boat 220 and then mounted on the conveying boat 220 by the operation of the conveyers 221.

la. The tray transfer apparatus 200 transfers the customer tray CT to the lower side of the supply setting positions SP1 and SP2 with the front of the tester TT.

hemp. The elevating apparatuses 310 and 320 raise the customer tray CT which has come to the front of the tester TT to the supply setting positions SP1 and SP2 and the tray positioners 410 and 420 move the customer tray CT Grasp it.

bar. The picking apparatus 500 grasps the electronic components one by one from the customer tray (CT) at the supply setting positions (SP1, SP2), and rotates the gripped electronic components in the vertical state.

four. The picking device 500 electrically connects the electronic component rotated in the vertical state to the tester TT.

2. How to supply an empty customer tray

The empty customer tray CT is supplied from the sixth row stacker 113 to the recovery setting positions SP3 to SP6 at this time as well. Since the tray CT is supplied to the rotation setting positions SP3 to SP6, further explanation is omitted.

3. When recovering tested electronic components

end. When the test for the specific electronic component is completed, the picking apparatus 500 holds the tested electronic component, and rotates the vertically-held electronic component held by the picking apparatus 500 in a horizontal state.

I. The picking apparatus 500 moves the horizontal electronic component to the customer tray CT in the rotation setting positions SP3 to SP6 while classifying it according to the test result.

All. The tray positioners 430 to 460 and the elevating apparatuses 330 to 360 operate so that the corresponding customer tray CT is operated when the tested electronic parts are filled in the customer tray CT at the rotation setting positions SP3 to SP6. And moves to the moving boat 220 of the tray transfer apparatus 200.

la. The tray transport apparatus 200 transports the customer tray CT to the supply and return position SRP.

hemp. The lifting device 123c and the lifting device 221 are operated to transmit the customer tray CT to the conveying belts 121a-1 and 121a-2 of the tray moving device 121. [ At this time, the customer tray CT is likewise mounted on the conveyor belts 121a-1 and 121a-2 of the moving machine 121 while moving down through the through hole TH. The tray mover 121 and the transfer 122 are operated to move the customer tray CT to the recovery stacker 112,

<Reference>

1. The handler HR according to the present embodiment further includes tester TTs further disposed in the right direction as shown in FIG. 8, and is connected to the right side of the conventional tray transfer apparatus 200 using the above- By connecting a new tray transport apparatus N200 to the new tray transport apparatus N200. At this time, the operation range of the picking apparatus 500 may be further increased to the right side or a separate picking apparatus may be added. Of course, it is also possible to consider expanding two or more tray transporting devices to the right depending on the processing capacity.

2. In this embodiment, only one tray transport apparatus 200 is provided. However, as shown in FIG. 9, a plurality of tray transport apparatuses 200 may be provided in parallel in the forward and backward directions. In this case, The role of the both-tray transfer device 200 can be separated and the processing speed can be improved. Of course, in this case, a tray positioner would also have to be added.

3. In FIG. 9, a pair of tray transporting devices, which share the supply operation and the recovery operation of the customer tray CT, respectively, may be provided in the vertical direction. In this case, it is necessary to provide a separate elevator for moving the customer tray between the pair of upper and lower tray transporting devices.

4. Also, as shown in FIG. 10, a joining platform of the handler HR can be implemented so that the tester TTs can be moved in the forward and backward directions. In this case, operations such as replacement of parts and repairing of troubles can be appropriately performed .

5. For reference, in the above-described embodiment, the six tray positioners 410 to 460 and the six elevators 310 to 360 are separately formed as a pair. However, the tray positioners 410 to 460 and the elevating devices 310 to 360, which are paired with each other, may be implemented as a single tray positioner. For example, if a single tray positioner can grip and lift the front and rear ends of the customer tray CT, the customer tray CT can be moved to the supply setting positions SP1, SP2 or move from the recovery setting position SP3 to SP6 to the moving boat 220. [

Although the present invention has been fully described by way of example only with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto. It is to be understood that the scope of the present invention is to be construed as being limited only by the following claims and their equivalents.

HR: Handler for testing electronic components
100: Stacker portion
111, 112, 113, 114: Stacker
120: Relay device
121: Tray shifter 122: Transfer
123a, 123b and 123c:
200: Tray feed device
310 to 360: lifting device
410 to 460: Tray position device
500: Picking device
600: standby device
700: connector

Claims (8)

A stacker portion for supplying a customer tray containing electronic components to be tested or retrieving a customer tray containing tested electronic components;
A tray transfer device for transferring a customer tray from the stacker portion to the front of a plurality of rows of testers in the left-right direction or transferring a customer tray containing tested electronic components to the stacker portion;
A plurality of tray positioners for placing a customer tray on which electronic parts to be tested to be tested are placed on the tray transporting device or an electronic part for which a tested test is finished,
A picking apparatus for picking up electronic components to be tested from a customer tray positioned by the plurality of tray positioners and electrically connecting the electronic components to a tester, ; Lt; / RTI &gt;
Wherein the stacker portion comprises:
A stacker provided with a plurality of rows in the forward and backward direction and a plurality of rows in the vertical direction to supply a customer tray loaded with electronic components to be tested or to collect a customer tray loaded with tested electronic components; And
A relay device for relaying customer trays between the stackers and the tray transfer device; Containing
Handler for testing electronic components. The method according to claim 1,
A lifting device for lifting a customer tray transferred by the tray transfer device to supply the plurality of position devices to the plurality of position devices and moving the customer tray to be withdrawn from the plurality of position devices to the tray transfer device; Further comprising:
The elevators are disposed below the tray transfer device
Handler for testing electronic components. The method according to claim 1,
The relay apparatus includes:
A tray mover having a moving belt for moving a customer tray in a back and forth direction;
A transfer for moving a customer tray from the stackers to the tray mover or moving a customer tray from the tray mover to the stackers; And
Elevators for raising and lowering a customer tray placed on the moving belt for smooth movement of the customer tray by the tray moving device; Containing
Handler for testing electronic components. The method according to claim 1,
An atmospheric apparatus provided at one side of the tester and capable of waiting electronic components; Further comprising:
The standby device has gripping grooves into which a part of the electronic parts can be inserted,
Wherein the picking device inserts an electronic component requiring standby into the holding groove of the waiting device
Handler for testing electronic components. The method according to claim 1,
Further comprising a connector for connecting a new tray transfer device in parallel to the tray transfer device so that further testers can be added laterally
Handler for testing electronic components. The method according to claim 1,
A plurality of the tray transfer devices are provided in the forward and backward directions
Handler for testing electronic components. The method according to claim 1,
The tray transfer apparatus includes a transfer boat for transferring a customer tray,
The transfer boat has a through-hole through which the customer tray can pass in the vertical direction
Handler for testing electronic components. A first step of supplying an electronic part to be tested in a supply stacker to a tester to electrically connect the electronic part and the tester; And
A second step of recovering the electronic components that have been tested and then supplied to the tester by the supplying step to the recovery stacker; / RTI &gt;
In the first step,
A 1-1 stage of moving the customer tray in the supply stacker to a supply and collection position;
A first step of transferring a customer tray at a supply and recovery position to a position below a supply setting position;
A step 1-3 of raising the customer tray below the supply setting position to the supply setting position;
(1-4) rotating the horizontal electronic component held by the picking device after grasping the electronic component from the customer tray at the supply setting position;
(1-5) of electrically connecting the vertical electronic component to the tester,
The second step comprises:
A second step (2-1) of rotating the vertical electronic component gripped by the picking device after gripping and testing the tested electronic component in a horizontal state;
A step 2-2 in which the picking device moves the horizontal electronic component to the customer tray at the rotation setting position;
A second step of lowering the customer tray downward when the tested electronic parts are filled in the customer tray at the recovery setting position;
(2-4) transferring the lowered customer tray to the supply and collection position; And
(2-5) moving the customer tray in the supply and recovery positions to the recovery stacker; Containing
A method of operating a handler for testing electronic components.

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