KR102570988B1 - Handler for testing electronic components and method of operating the same - Google Patents

Abstract

The present invention relates to a handler for testing electronic components.
According to the electronic component test handler according to the present invention, a transfer, a tray mover, a tray transfer device, and a tray positioning device are applied to support testing of a large electronic component such as an SSD and having an electrical contact terminal at one end.
According to the present invention, it is possible to implement a new type of handler supporting a test of a large electronic component such as an SSD having an electrical contact terminal at one end.

Description

Handler for testing electronic components and its operation method {HANDLER FOR TESTING ELECTRONIC COMPONENTS AND METHOD OF OPERATING THE SAME}

The present invention relates to a handler supporting a test of an electronic component.

Produced electronic parts (for example, semiconductor devices, boards, SSDs, etc.) are tested by testers and then divided into good products and defective products, and only good products are shipped.

An electronic component can be tested only when it is electrically connected to the tester. In this case, a handler is a device that supports the electronic component to be tested by electrically connecting the electronic component to the tester.

As in Korean Patent Publication No. 10-2016-0045161 or 10-2015-0123377, the handler is being proposed and manufactured by Dongbu according to the development of new electronic components, and various future developments for stabilization are being made.

On the other hand, SSD (Solid State Drive) is a trend that is expanding in recent years.

When only a small amount was produced due to low demand, the SSD was electrically connected to the tester by hand, disconnected, and classified according to test grade. However, as the demand soared, manual test support became difficult.

Therefore, it is expected that a handler capable of automatically supporting tests for SSDs will be required in the near future. However, since the thickness, structure and weight of SSDs are different from those of conventional electronic components, the conventional handlers cannot be applied as they are. It is necessary to create a handler.

The present invention electrically connects a tester with a large electronic component such as an SSD that can be electrically connected to the test socket by being inserted into a slit of the test socket, and then sorting and recovering the electronic components that have been tested by test grade. It is to provide a new handler.

An electronic component test handler according to the present invention includes a stacker portion that supplies a customer tray loaded with electronic components to be tested or collects a customer tray loaded with electronic components whose tests have been completed; a tray transfer device for transporting customer trays from the stacker portion to the front of a plurality of rows of testers in a left and right direction or transferring customer trays loaded with electronic components for which tests have been completed to the stacker portion; A plurality of tray positioning devices for placing customer trays loaded with electronic components to be tested or empty customer trays for loading electronic components whose tests have been completed on the upper side of the tray transfer device on a set position; A picking device that grasps electronic components to be tested from the customer trays located by the plurality of tray positioning devices, electrically connects them to the tester, and moves the electronic components that have completed the test to an empty customer tray while classifying them by test grade. ; Including, the stacker part, a plurality of stacks provided in the vertical direction and in multiple rows in the forward and backward directions to supply customer trays loaded with electronic components to be tested or to retrieve customer trays loaded with electronic components whose tests have been completed. Cuddle; and a relay device for relaying customer trays between the stackers and the tray transfer device. includes

elevators for lifting customer trays transported by the tray transfer device and supplying the customer trays to the plurality of position devices, and lowering customer trays to be retrieved from the plurality of position devices and moving them to the tray transfer device; It further includes, and the elevators are provided below the tray transfer device.

The relay device includes a tray mover having a moving belt for moving the customer tray in the forward and backward directions; a transfer for moving customer trays from the stackers to the tray mover or moving customer trays from the tray mover to the stackers; and elevators for moving the customer tray placed on the moving belt for smooth movement of the customer tray by the tray mover. includes

a stand-by device provided on one side of the testers and capable of keeping electronic components on stand-by; Further, the waiting device has gripping grooves into which some of the electronic components can be inserted, and the picking device inserts the electronic component that needs to be waiting into the holding groove of the waiting device.

The handler further includes a connector capable of connecting a new tray transfer device parallel to the tray transfer device so that testers can be added and arranged in the left and right directions.

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

The tray transfer device includes a transfer boat for carrying customer trays, and the transfer boat has a through hole through which customer trays 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 supplying an electronic component to be tested in a supply stacker to a tester and electrically connecting the electronic component and the tester; and a second step of recovering, after being supplied to the tester by the supplying step, the electronic components for which the test has been completed are recovered to a recovery stacker. The first step includes a 1-1 step of moving the customer tray in the supply stacker to the supply and recovery position; Step 1-2 of transferring the customer tray at the supply/return position to the lower part of the set position for supply; 1-3 steps of raising the customer tray below the set position for supply to the set position for supply; Steps 1-4 of rotating the gripped electronic component to a vertical state after the picking device grabs the electronic component from the customer tray at the set position for supply; The picking device includes steps 1-5 of electrically connecting the electronic component in a vertical state to the tester, and in the second step, the picking device grabs the electronic component for which the test has been completed and then removes the electronic component in the vertical state. Step 2-1 of rotating to a horizontal state; A 2-2 step in which the picking device moves the electronic parts in a horizontal state to the customer tray at the set position for collection; Step 2-3 of lowering the corresponding customer tray downward when the electronic components for which the test is completed are filled in the customer tray at the recovery set position; 2-4 steps of transferring the lowered customer tray to a supply and recovery position; and a 2-5 step of moving the customer tray in the supply and recovery position to the recovery stacker. includes

According to the present invention, it is possible to implement a new type of handler supporting a test of a large electronic component such as an SSD having an electrical contact terminal at one end.

1 is a reference diagram for explaining an electrical connection structure between an electronic component and a tester.
2 is a schematic structural diagram of a handler for testing an electronic component according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a stacker applied to the handler of FIG. 2 .
4 is a schematic diagram of an elevator applied to the handler of FIG. 2 .
It is a schematic plan view of the transfer boat configured in the tray transfer device applied to the handler of FIG. 2 .
6 is a schematic diagram of a tray positioning device applied to the handler of FIG. 2 .
FIG. 7 is a schematic plan view of gripping levers in the tray positioning device of FIG. 6 .
8 is an extension example of the handler of FIG. 2 .
9 is an application example of the handler of FIG. 2 .
FIG. 10 is a reference diagram for explaining a coupling relationship between a handler and a tester of FIG. 2 .

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

<Description of electrical connection between electronic components and tester>

The handler according to the present invention is more appropriately applied in the case of a method in which the contact terminal side of an electronic component is inserted into a test socket of a tester, such as an SSD.

For example, as shown in FIG. 1, the tester is provided with a test socket (TS) having a slit (S), and the terminal (T) side of the electronic component (ED) is inserted into the corresponding test socket (TS) so that the electronic component (ED) is inserted. The component ED and the tester are electrically connected.

<Description of handler>

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

The handler HR according to this embodiment includes a stacker part 100, a tray transfer device 200, 6 elevator devices 310 to 360, 6 tray position devices 410 to 460, a picking device ( 500), a standby device 600 and a connector 700.

The stacker portion 100 is provided to supply customer trays loaded with electronic components to be tested or to retrieve customer trays loaded with electronic components whose tests have been completed, and stackers 111 to 114 and the relay device 120 includes

The stackers 111 to 114 are provided to accommodate customer trays loaded with electronic components to be tested before supplying them or to collect and store customer trays loaded with electronic components whose tests have been completed. These stackers 111 to 114 are arranged in 7 rows in the front-back direction and 4 in each in the vertical direction in multiple stages. Of course, depending on implementation, the stackers 111 to 114 may be arranged in fewer or more rows than 7 in consideration of the size or processing capacity of electronic components, or in a number of fewer than 4 or more in the vertical direction. It can be.

All the stackers 111 to 114 can accommodate several customer trays (CT), and as shown in the schematic diagram of FIG. 3, the customer trays (CT) that are stored are pushed to the right or collected You can move the piles to the left. To this end, the stackers 111 to 114 include a loading frame LF capable of loading the customer tray CT and a moving source MS capable of moving the loading frame LF in left and right directions. Of course, the loading frame LF of all the stackers 111 to 114 can be further moved to the left for the convenience of further supplying or collecting the customer tray CT to the stackers 111 to 114. It can also be sufficiently considered to implement so.

In addition, the stackers 111 to 114 in each row may have their respective uses to maximize processing capacity, as in the present embodiment.

Stackers 111 in the first and second rows are provided to supply customer trays (CT) loaded with electronic components to be tested. Therefore, in this embodiment, the stackers 111 in the first and second columns may be referred to as supply stackers.

The stackers 112 in the third to fifth rows are provided to collect the customer tray CT loaded with the electronic parts determined to be good after the test is finished.

The stackers 113 in the sixth row are provided to supply an empty customer tray (CT) on which the electronic components whose tests are initially completed are loaded.

The stackers 114 in the seventh row are provided to collect customer trays CT loaded with electronic parts judged to be defective or subject to retest after the test is finished. The stackers 113 to 115 in the third to fifth rows mentioned above along with the stackers 114 in the seventh row are used to collect the customer tray CT loaded with the electronic parts for which the test has been completed. In this respect, it can be called a recovery stacker.

The relay device 120 relays the customer trays CT between the stackers 111 to 114 and the tray transfer device 200 using the supply and recovery location SRP as a transfer point. To this end, the relay device 120 includes a tray mover 121, a transfer 122, and elevators 123a to 123c.

The tray mover 121 moves the customer tray CT in the forward and backward directions, and includes a pair of moving belts 121a-1 and 121a-2 and a rotating member 121b.

A pair of moving belts (121a-1, 121a-2) are spaced apart from each other at regular intervals in the left and right directions, and rotate forward and backward with both ends as turning points, thereby moving the customer tray (CT) placed on the upper surface in the forward and backward directions. am.

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

The transfer 122 grips the customer tray CT of the stackers 111 and 113 and places it on the moving belts 121a-1 and 121a-2 or the customer placed on the moving belts 121a-1 and 121a-2. The tray CT is gripped and moved to the stackers 112 and 114 . Of course, if necessary, transfer the customer trays (CT) of the stackers 111 and 113 to the tray transfer device 200 or directly transfer them from the tray transfer device 200 to the stackers 112 and 114 ( 122) can also be considered advantageous.

The elevators 123a to 123c lift the customer tray CT placed on the moving belts 121a-1 and 121a-2 for smooth movement of the customer tray by the tray mover 121. These elevators 123a to 123c are provided below the transfer belts 121a-1 and 121a-2 and may be composed of a support plate SP and an elevator member UD as shown in FIG.

The support plate (SP) can support the customer tray (CT), and has a narrower left and right width than the left and right widths between the pair of moving belts (121a-1, 121a-2), so that the pair of moving belts (121a-1, 121a) -2) You can go up and down by passing between them.

The lift member UD lifts the support plate SP.

Therefore, when the customer tray (CT) requiring forward and backward movement and the customer tray (CT) not requiring forward and backward movement are placed together on the moving belts (121a-1, 121a-2), the elevators (123a to 123c) When the customer tray CT that does not need to be moved is raised, only the customer tray CT that needs to be moved can be moved to a required position by the operation of the tray mover 121.

In addition, the elevator 123c at the supply and recovery position SRP in the vertical direction lifts the customer tray CT placed on the moving belts 123a to 123c and transfers it to the tray transfer device 200 or the tray transfer device 200 ) also performs the function of lowering the customer tray (CT) that has come to the supply and recovery position (SRP) and placing it on the moving belts (121a-1, 121a-2).

The tray transfer device 200 has a similar function to the above tray mover 121, and moves the customer tray CT from the stacker part 100 in the left and right directions in front of the testers TT equipped with a plurality of rows and at the set position. The customer tray (CT) is moved in the left and right directions in order to transfer the customer tray (CT) loaded with the electronic components on which the test is completed to the stacker part (100). To this end, the tray transfer device 200 includes a transfer belt 210, a moving boat 220 and a transfer source 230.

The transfer belt 210 moves the transfer boat 220 in the left and right directions by forward and reverse rotation of both ends at the turning point.

As shown in FIG. 5, the transfer boat 220 is provided to transport two customer trays CT at once, and has a pair of through holes TH through which the customer trays CT can pass in the vertical direction. Therefore, the customer tray CT may rise from the lower side of the transfer boat 220 to the upper side or descend from the upper side of the transfer boat 220 to the lower side through the through hole TH. Of course, the transfer boat 220 is provided with supports 221 capable of supporting both left and right ends of the customer tray CT or releasing the supports.

The supporter 221 is in a supported state to prevent the customer tray (CT) loaded on the transfer boat 220 from falling or to release the support state so that the customer tray (CT) can pass through the through hole (TH) and go up and down can Since this holder 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, the description of the positioning devices 410 to 460 to be described later will be replaced. do.

For reference, the testers TT are provided in four rows in the left-right direction, but may be provided in fewer or more rows than the four rows as needed, and are also provided in multiple stages in the vertical direction. And, as mentioned above, a plurality of long slits S are formed in each tester TT in the vertical direction to be electrically connected to the electronic component.

The six elevator devices 310 to 360 lift and move the customer tray CT to supply the customer tray CT of the transfer boat 220 to the tray position devices 410 to 460, or the tray position device 410 to 460), the customer tray (CT) to be recovered is moved down to the transfer boat (220). Since these elevator devices 310 to 360 have the same structure as the previously described elevators 123a to 123c, their descriptions are omitted.

The six tray positioning devices 410 to 460 are located in front of the testers TT provided in four rows in the left and right directions and above the transfer belt 210, and more specifically, in the vertical direction, the lifting devices 310 to 460 360) and corresponds one to one with the elevator devices 310 to 360. These tray positioning devices 410 to 460 place a customer tray (CT) loaded with electronic components to be tested or an empty customer tray (CT) for loading electronic components whose tests have been completed, on the setting positions (SP1 to SP6) . To this end, as shown in FIG. 6, the tray positioning devices 410 to 460 include a gripping lever GL and a gripping support GS.

The gripping lever GL grips both left and right ends of the customer tray CT, but releases gripping.

The gripping support GS allows the customer tray CT to be gripped by the gripping levers GL or released by the gripping levers GL by spacing both gripping levers GL in the left and right directions by a predetermined interval.

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

On the other hand, if the above-mentioned setting positions (SP1 to SP6) are divided in detail, the setting positions for supply (SP1 and SP2) where the customer tray (CT) loaded with the electronic parts to be tested are located and the electronic parts for which the test has been completed are It can be divided into collection setting positions (SP3 to SP6) where the empty customer tray (CT) is located. Accordingly, the tray positioning devices 410 and 420 position the customer trays (CT) loaded with the electronic parts to be tested at the supply setting positions (S1, S2), respectively, and the tray positioning devices 430 to 460 end the test. The empty customer tray (CT) to be loaded with the electronic parts is placed at the recovery set position (S3 to S6). Here, an empty customer tray (CT) for loading electronic parts judged to be good among the electronic parts tested is located at the set positions for recovery of symbols SP3 to SP5, and at the set positions for recovery at the symbol SP6, the electronic parts whose tests have been completed Among them, an empty customer tray (CT) on which electronic parts determined to be defective or retested are placed. Of course, it is natural that each setting position (SP1 to SP6) can be exchanged for the convenience of operation and control.

The picking device 500 grips the electronic components to be tested from the customer tray CT located at the supply setting positions SP1 and SP2, electrically connects them to the tester TT, and grips the electronic components for which the test has been completed. and move them to the empty customer trays (CT) located at collection setting positions (SP3 to SP6) while classifying them by test grade.

The picking device 500 is provided to convert the held customer tray CT into a vertical state or convert the vertical customer tray CT into a horizontal state. This is because it is necessary to change the posture to a vertical state in order to insert the electronic component loaded in the customer tray CT in a horizontal state into the slit S of the tester TT. Since this picking device 500 is presented by Application No. 10-2017-0145931 previously filed by the present applicant, a detailed description thereof will be omitted.

The standby device 600 is provided to the left of the testers TT in the left column, and is provided to standby electronic components. To this end, the waiting device 600 has gripping grooves (GS) into which some of the electronic components can be inserted, and the picking device 500 is used to change the customer tray (CT) at the setting positions (SP1 to SP6) or to test time. When it is necessary to keep the electronic component on standby due to the elongation of the electronic component, the electronic component can be inserted into the holding groove GS of the standby device 600 to be in a standby state, and other tasks can be performed. Of course, when the standby state is released, the picking device 500 moves the electronic component in the standby device 600 to a desired position.

The connector 700 further connects a new tray transfer device 200 to the right side of the tray transfer device 200 so that the handling capacity of the handler HR can be expanded. This will be explained later.

<Description 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 is supplied to the tester (TT) and then tested. The electronic components that have been completed are recovered to the collection stackers 112 and 114. This will be described in more detail in terms of the method of moving (supply and collect) electronic parts.

1. In case of supplying electronic parts to be tested

go. When the supply stacker 111 pushes the stack of customer trays (CT) in the right direction, the transfer 122 grips the customer tray (CT) in the supply stacker 111 and then transfers it to the tray mover 121. convey 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 mover 121.

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

all. The elevator 123c lifts the customer tray CT at the supply and retrieval position SRP and transfers the customer tray CT to the tray transfer device 200 by loading it on the transfer boat 220 . At this time, the ascending customer tray (CT) passes through the passage hole (TH) of the transfer boat 220 and rises, and then is loaded while being seated on the transfer boat 220 by the operation of the supports 221.

la. The tray transfer device 200 transfers the customer tray CT to the front of the tester TT and below the supply set positions SP1 and SP2.

mind. The elevator devices 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 position devices 410 and 420 lift the customer tray CT. to grip

bar. The picking device 500 grabs the electronic components one by one from the customer tray CT at the set positions for supply (SP1, SP2), and rotates the held electronic components in a vertical state.

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

2. How to supply empty customer trays

The empty customer tray (CT) is supplied from the stacker 113 in the sixth row to the collection set positions SP3 to SP6, and even at this time, the empty customer tray in the stacker 113 Since the tray CT is supplied to the recovery setting positions SP3 to SP6, further explanation is omitted.

3. In case of recovering electronic parts that have been tested

go. When the test for a specific electronic component is finished, the picking device 500 grabs the electronic component for which the test has been completed and then rotates the held electronic component in a horizontal state.

me. The picking device 500 sorts the electronic parts in a horizontal state according to the test results and moves them to the customer tray CT located at the collection setting positions SP3 to SP6.

all. When the test-completed electronic parts are filled in the customer tray (CT) at the collection set position (SP3 to SP6), the tray position devices (430 to 460) and the elevator devices (330 to 360) operate to ) is lowered and moved to the moving boat 220 of the tray transfer device 200.

la. The tray transfer device 200 transfers the customer tray CT to the supply and recovery position SRP.

mind. Subsequently, the elevator 123c and the support 221 operate to transfer the customer tray CT to the transfer belts 121a-1 and 121a-2 of the tray mover 121. At this time as well, the customer tray CT passes through the through hole TH and is seated on the transfer belts 121a-1 and 121a-2 of the mover 121 while moving downward. The tray mover 121 and the transfer 122 operate to move the customer tray CT to the stackers 112 and 114 for collection.

<Notes>

1. The handler HR according to the present embodiment further arranges the testers TT in the right direction as shown in FIG. It can be further expanded by connecting a novel tray transfer device (N200) to. At this time, the operating range of the picking device 500 may be further increased to the right or a separate picking device may be added. Of course, it is also possible to consider expanding by connecting two or more tray transfer devices to the right according to the processing capacity.

2. In this embodiment, only one tray transfer device 200 is provided, but depending on the implementation, a plurality of tray transfer devices 200 may be provided side by side in the front and rear directions as shown in FIG. Since the roles of the two tray transfer devices 200 are separated, the processing speed can be improved. Of course, in this case, a tray positioning device will also have to be added.

3. In addition to FIG. 9 , a pair of tray transfer devices sharing the supply and collection operations of the customer tray CT may be provided in the vertical direction. In this case, a separate elevator needs to be provided to move the customer tray between the pair of upper and lower tray transfer devices.

4. In addition, as shown in FIG. 10, the coupling platform of the handler (HR) can be implemented so that the testers (TT) can be moved in the forward and backward directions, and in this case, tasks such as parts replacement or breakdown repair can be performed appropriately in the future. .

5. For reference, in the above-described embodiment, an example is taken in which six tray positioning devices 410 to 460 and six elevator devices 310 to 360 are separately configured in pairs. However, depending on implementation, the tray positioning devices 410 to 460 and the elevator devices 310 to 360 forming a pair may be implemented as a single tray positioning device. For example, if one single tray positioning device grips the front and rear ends of the customer's tray (CT) to raise and lower it, the customer's tray (CT) can be moved to the supply setting position (SP1, SP2) or moved to the mobile boat 220 from the collection set positions (SP3 to SP6).

As described above, the detailed description of the present invention has been made by the embodiments with reference to the accompanying drawings, but since the above-described embodiments have only been described with reference to preferred examples of the present invention, the present invention is limited to the above embodiments. It should not be understood as being limited, and the scope of the present invention should be understood as the following claims and their equivalents.

HR: Handler for testing electronic components
100: stacker part
111, 112, 113, 114: Stacker
120: relay device
121: tray mover 122: transfer
123a, 123b, 123c: elevator
200: tray transfer device
310 to 360: lifting device
410 to 460: tray position device
500: Picking device
600: waiting device
700: connector

Claims (7)

a stacker portion supplying customer trays loaded with electronic components to be tested or collecting customer trays loaded with electronic components whose tests have been completed;
a tray transfer device for transporting customer trays from the stacker portion to the front of a plurality of rows of testers in a left and right direction or transferring customer trays loaded with electronic components for which tests have been completed to the stacker portion;
A plurality of tray positioning devices for positioning a customer tray loaded with electronic components to be tested or an empty customer tray for loading electronic components whose tests have been completed on the upper side of the tray transfer device on a set position;
Electronic components of the customer tray located at the set position are electrically connected to the tester by the plurality of tray position devices, and the electronic parts for which the test has been completed are classified by test grade and moved to the empty customer tray located at the set position letting device;
elevators for lifting customer trays transported by the tray transfer device and supplying the customer trays to the plurality of position devices, and lowering customer trays to be retrieved from the plurality of position devices and moving them to the tray transfer device; including,
The stacker part,
Stackers provided in multiple rows in a vertical direction and in multiple rows in a vertical direction to accommodate customer trays loaded with electronic components to be tested before supplying them or to collect and store customer trays loaded with electronic components whose tests have been completed; and
a relay device for relaying customer trays between the stackers and the tray transfer device; containing
Handler for testing electronic components.
According to claim 1,
Each of the plurality of tray positioning devices
A pair of gripping levers for gripping or releasing both left and right ends of the customer tray; and
a gripping support that allows the customer tray to be gripped by the pair of gripping levers or to release the gripping; Including,
The lifting devices are provided below the tray transfer device
Handler for testing electronic components.
According to claim 1,
The relay device,
Tray moving machine equipped with a moving belt for moving the customer's tray in the forward and backward directions;
a transfer for moving customer trays from the stackers to the tray mover or moving customer trays from the tray mover to the stackers; and
Elevators for moving the customer tray placed on the moving belt for smooth movement of the customer tray by the tray mover; containing
Handler for testing electronic components.
According to claim 1,
a stand-by device provided on one side of the testers and capable of keeping electronic components on stand-by; Including more,
The waiting device has gripping grooves into which some of the electronic components can be inserted,
The device for moving to the empty customer tray located at the set position inserts the electronic component that needs to be waiting into the gripping groove of the waiting device.
Handler for testing electronic components.
According to claim 1,
Further comprising a connector capable of connecting a new tray transfer device in parallel to the tray transfer device so that more testers can be added and placed in the left and right directions
Handler for testing electronic components. According to claim 1,
The tray transfer device is provided with a plurality in the forward and backward directions
Handler for testing electronic components.
According to claim 1,
The tray transfer device includes a transfer boat for carrying customer trays,
The transfer boat is an electronic component test handler having a through hole through which the customer tray can pass in the vertical direction.

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