JPH03187237A - Method and mechanism for feeding ic chip in handling apparatus - Google Patents

Abstract

PURPOSE:To feed an IC chip smoothly one by one by a method wherein a stopper which receives the IC chip and a pusher which pushes the second IC chip from the stopper toward an IC chip supply side and retains it are operated alternately. CONSTITUTION:An IC chip 50a supplied to the shoot rail 2 of the IC chip supply side of a handling apparatus is received by a stopper 6 and, at the same time, a pusher 13 is turned to push the second IC chip 50b from the stopper 6 toward the IC chip supply side and retain it. Then the stopper 6 is released and the first IC chip is fed out. After that, the pusher 13 is turned to release the IC chip and, at the same time, the IC chip 50a is received by the stopper 6 again and the pusher 13 is turned again to retain the second IC chip 50b from the stopper 6 while pushing the IC chip 50b toward the IC chip supply side. The above mentioned process are repeated. With this constitution, the entangling between the burrs of the IC chips can be avoided, so that the IC chip 50 can smoothly be fed one by one.

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to an IC chip feeding method and its mechanism for a handling device that measures the electrical characteristics of semiconductor devices to determine pass/fail and sort them.

<Prior Art> In a handling device, an IC chip feeding mechanism is provided on the shade rail on the IC chip supply side for feeding 14 IC chips at a time to a measuring section.

A conventional IC chip feeding mechanism will be explained with reference to FIG.

In a conventional IC chip feeding mechanism 2I shown in FIG. 3, a shade rail 2 for aligning and feeding a plurality of IC chips 50 is installed at an angle.

A stopper driving section 4 is provided above the IC chip delivery side 2a of the chute rail 2. This stopper drive section 4 is provided with a piston rod 5 which can be raised and lowered freely. A stopper 6 is provided at the tip of the piston rod 5.

Further, a feed drive section 7 is provided on the IC chip supply side 2b from the stopper drive section 4. This feed drive unit 7 is provided with a feed piston rod 8 that is movable up and down. The tip side of this feeding piston rod 8 is provided at a position longer than the length of one IC chip and shorter than the length of two IC chips from the stopper 6.

A pressing portion 13 is provided at the tip of the feeding piston rod 8. This pressing portion 13 is made of a soft resin such as synthetic rubber or vinyl chloride resin.

Next, the operation of the conventional IC chip feeding mechanism 21 will be explained.

First, the stopper driving section 4 is driven to lower the stopper 6 onto the chute rail 2. Further, the feeding drive section 7 is driven to raise the pressing section 13.

Next, a plurality of IC chips 50 are supplied to the chute rail 2 and slid to the stopper 6 position. Then, the feed drive unit 7 is driven, and the pressing unit 13 moves the second I from the stopper 6.
Lock the C chip 50b (so).

Next, the stopper drive section 4 is driven to raise the stopper 6. Then, the IC chip 50a on the IC chip exit side 28 (
50) Send 1 piece.

Then, the stopper drive unit 4 is driven to lower the stopper 6 onto the chute rail 2. Also, the feed drive section 7 is driven to raise the suppression section 13.

As described above, the stopper 6 and the pressing part 13 are raised and lowered to send out the IC chips 50 one by one to the IC chip delivery side 28.

Next, another conventional IC chip feeding mechanism will be explained with reference to FIG.

In another conventional IC chip feeding mechanism 31 shown in FIG.
A chute rail 2 for aligning and supplying a plurality of IC chips 50 is installed obliquely.

A stopper driving section 4 is provided above the IC chip delivery side 28 of the chute rail 2. This stopper drive section 4 is provided with a piston rod 5 which can be raised and lowered freely. A stopper 6 is provided at the tip of the piston rod 5.

Further, a feed drive section 7 is provided on the IC chip supply side 2b from the stopper drive section 4. This feed drive unit 7 is provided with a feed piston rod 8 that is movable up and down. A link IO is provided on the tip end side of the feed piston rod 8, which rotates in response to the rise and fall of the feed piston rod 8. This link IO
A cut-out pin 32 is provided at. This cutting pin 32
is made of a soft resin such as synthetic rubber or vinyl chloride resin that will not damage the package of the IC chip 50.

Next, the operation of the above-mentioned other conventional IC chip feeding mechanism 31 will be explained.

First, the stopper drive unit 4 is driven to lower the stopper 6 onto the chute rail 2. Further, the feeding drive section 7 is driven to rotate the cutting pin 32 to the IC chip feeding side 2a.

Next, a plurality of IC chips 50 are supplied to the chute rail 2 and slid to the stopper 6 position. Then, the feed drive unit 7 is driven to rotate the cut-out pin 32, and the cut-out pin 32 is moved from the stopper 6 to the first IC chip 50a.
(50) and the second IC chip 5ob(so). Then, the second and subsequent IC chips 50 are locked.

Next, the stopper drive unit 4 is driven to raise the stopper 6. Then, the IC chip 50a on the IC chip sending side 2a (
50) Send 1 piece.

Then, the stopper drive unit 4 is driven to lower the stopper 6 onto the chute rail 2. Further, the feeding drive section 7 is driven to rotate the cutting pin 32 to the IC chip feeding side 2a.

As described above, by raising and lowering the stopper 6 and rotating the cutting pin 32, the IC chips 50 are delivered one by one to the IC chip delivery side 2a.

<Problems to be Solved by the Invention> However, in each of the conventional IC chip feeding mechanisms described above, the ridges around the package formed during molding of the plastic package of the IC chip catch each other, so that one IC chip cannot be transported. It is difficult to send out IC chips smoothly one by one, and therefore, when IC chips get caught, it is necessary to remove the stuckness manually, making it difficult to make the handling device unmanned.

Also, since the length of the opening is about 0.0 to 0.5,
Since the distance between the IC chip and the adjacent IC chip is not constant, the cutting pin does not enter the gap between the IC chip and the adjacent IC chip and tends to get caught on the IC chip surface, making it impossible to send out the IC chip. It ends up.

<Means for Solving the Problems> The present invention has been made to solve the above problems, and provides an IC chip feeding mechanism and an IC chip feeding method that have excellent IC chip feeding performance in a handling device. The purpose is to

That is, the IC chip supplied to the chute rail on the IC chip supply side of the handling device is received by the stopper, and the pressing part is rotated to press the second IC chip from the stopper toward the IC chip supply side and engage it. After stopping, remove the stopper and send out the first IC chip. After that, rotate the pressing part to remove it from the IC chip.

The IC chip is received by the stopper again, and the pressing part is rotated again to press and lock the second IC chip from the stopper, which is repeated. and 1 IC chip
This is a method of sending each item one by one.

Further, there is an IC chip feeding mechanism provided on a chute rail on the IC chip supply side of the handling device, and the IC chip feeding side of the chute rail includes a stopper drive section provided on the frame, and a mechanism that moves up and down with respect to the stopper drive section. A freely provided piston rod and a stopper provided at the tip of the piston rod are provided. Further, on the IC chip supply side from the stopper drive unit, a feeding drive unit provided on the frame;
A feed piston rod is provided to be able to move up and down with respect to the feed drive unit, a link receiving portion provided at the tip of the feed piston, and a link receiving portion that is in contact with the link receiving portion and is rotatable relative to the frame. a link provided, a biasing means provided on the frame to support this link, a rotating portion provided at a rotation fulcrum of the link, and two pieces extending from the stopper toward the IC chip supply side. It is provided so as to be able to press freely against the second IC chip, and is provided with a pressing part formed at the outermost part of the rotating part.

<Operation> The IC chip feeding method and mechanism of the handling device having the method and configuration described above includes a stopper that receives the IC chip and a pressing portion that pushes up and locks the second IC chip from the stopper while pressing it in the IC chip supply direction. By alternately operating the IC chips and sending out the IC chips one by one, the IC chips are sent out one by one while preventing the IC chips from getting entangled with each other due to the IC chips being damaged.

Also, from the stopper towards the IC chip supply side, the second IC
By providing a pressing part on the chip and at the outermost part of the rotating part, this pressing part acts to rub the IC chip toward the IC chip supply side and locks the IC chip while pressing it against the chute rail. . This prevents the burrs of the IC chip received by the stopper from becoming entangled with the burrs of adjacent IC chips.

<Example> An example of the present invention will be described with reference to a schematic explanatory diagram shown in FIG.

As shown in the figure, in the IC chip feeding mechanism l, a plurality of IC chips
A chute rail 2 for aligning and supplying chips 50 is installed at an angle of 30° to 45°.

A stopper drive section 4 is provided on the frame 3 on the L side of the IC chip delivery side 2b of the chute rail 2. This stopper drive section 4 is provided with a piston rod 5 which can be raised and lowered freely. A stopper 6 is provided at the tip of the piston rod 5.

Further, a feed drive section 7 is provided on the frame 3 on the IC chip supply side 2b from the stopper drive section 4. This feed drive unit 7 is provided with a feed piston rod 8 that is movable up and down. A link receiving portion 9 is provided at the tip of this feeding piston rod 8. The link receiving portion 9 is movable while contacting a link surface, which will be described later, and is formed by, for example, a rotatable wheel. Further, a link IO is attached to the frame 3 so as to be in contact with the link receiving portion 9 and to be rotatable with respect to the frame 3. A biasing means 11 is attached to the link 1O on the opposite side of the rotation fulcrum 10a. The biasing means 11 is formed of a coil spring or the like, and is supported by the frame 3. Furthermore, a rotating portion 12 is attached to the link 10 on the rotating fulcrum 10a side. At the outermost part of this rotating part 12, from the stopper 6 to the IC chip supply side 2b.
A pressing portion 13 is provided on the second IC chip 5ob (so) at a height such that it can press freely against the surface of this IC chip 5ob.

Also, in order to avoid damage to the surface of the IC chip 50 pressed by this pressing part 13, it is desirable to provide an O-ring 14 made of an elastic material around the outer periphery of the rotating part 12, including the pressing part 13. Instead of the O-ring 14, the pressing portion 13 may be made of a soft resin that does not damage the surface of the IC chip 50 and contains an antistatic agent.

Further, the link 10, the rotating portion 12, and the pressing portion 13 may be formed integrally.

Further, the attachment position of the biasing means 11 to the link 10 and the abutment position of the link receiving portion 9 are not limited to those described with reference to FIG. 1. The second example is
This will be explained with reference to Figures (a) to (C).

As shown in FIG. 2(a), the link IO is rotatably supported by the frame 3. A link receiving portion 9 of a feed piston rod 8, which is provided so as to be movable up and down, is brought into contact with the link 10 on the opposite side from the rotation fulcrum 10a. A biasing means 11 is provided on the link 10 between the pivot point 10a and the position where the link receiving portion 9 abuts. This biasing means II
is formed of a coil spring or the like and is supported by the frame 3. Furthermore, a rotating portion 12 is attached to the link 10 on the rotating fulcrum 10a side.

Further, in the structure shown in FIG. 2(b), the link IO is rotatably supported on the frame 3 with the center portion of the link IO serving as a pivot point 10a. A link receiving portion 9 of the feeding piston rod 8 is provided on one end side of the link IO so that it can be raised and lowered.
or be touched. In addition, a frame 3 is attached to the other end of the link 10.
A biasing means 11 supported by is attached. This biasing means 11 is formed of a coil spring or the like. Further, a rotating portion 12 is attached to the link 10 on the rotating fulcrum 10a side.

Furthermore, in the one shown in FIG. 2(c), the link 10 is rotatably supported by the frame 3. Further, at the pivot point 10a of the link 10, there is a biasing means 11 supported by the frame 3.
can be installed. This biasing means 11 is formed of a mainspring or the like. Further, a link receiving portion 9 of a feed piston rod 8 provided so as to be movable up and down is brought into contact with the link lO on the opposite side from the rotation fulcrum 10a.

Next, the operation of the above-described IC chip feeding mechanism will be explained in order of operation with reference to FIG. 1 mentioned above.

Operation (2): Drive the stopper drive unit 4 to lower the stopper 6 onto the chute rail 2.

Operation (2): Drive the feeding drive section 7 to direct the pressing section 13 toward the IC chip sending side 2a.

Operation ①: The IC chip 50 is supplied to the shade rail 2 and slid to the stopper 6 position.

Operation ■: Drives the feeding drive unit 7, raises the feeding piston rod 8, rotates the rotating unit 12 toward the IC chip supply side 2b by the urging force of the urging means 11, and presses the stopper by the pressing unit 13. Rub the 2a-th IC chip 5ob (so) from 6 and lock it.

Operation (2): Drive the stopper drive unit 4 and raise the stopper 6 to send out the IC chip 50a (50).

Operation (2): Drive the stopper drive unit 4 to lower the stopper 6 onto the chute rail 2.

Operation ■: Drives the feed drive unit 7 to move the feed piston rod 8
while lowering the rotating part 12 to the IC chip delivery side 2.
a to separate the suppressor 13 from the IC chip 5ob(so) and slide the IC chip 50 to the stopper position.

Operation (2): The above operations (2) to (2) are repeated in order until there are no more IC chips 50 on the chute rail 2.

In the above operation (2), the IC chip 5 is pressed by the pressing part 13.
When locking the IC chip 50 by the pressing part 13,
Is it necessary to adjust the amount of rubbing to bring the amount of static electricity generation below a safe value? As a means for adjusting the amount of rubbing, (1) a rotating portion 12 having a radius corresponding to the package thickness of the IC chip 50 is used;

(2) The rotating portion 12 is made of an elastic material to reduce the pressing force of the pressing portion 13 against the IC chip 50. ■Rotation fulcrum 10
For example, adjusting the height of a.

<Effects of the Invention> As described above, according to the present invention, the stopper is provided so as to be movable up and down, and the pressing portion is configured to be able to press the second IC chip from the stopper toward the IC chip supply side. Since it is provided at the outermost part of the rotating part, 2
Each IC chip can be locked by rubbing it up on the IC chip supply side using the pressing part. Furthermore, since the stopper and the pressing part can be operated alternately, it is possible to prevent the IC chips from getting entangled with each other and to smoothly feed out the IC chips one by one.

Therefore, the handling device can be operated smoothly and can be unmanned.

[Brief explanation of drawings]

Fig. 1 is a schematic explanatory diagram of the embodiment; Fig. 2 (a) to (c) are partial explanatory diagrams of another feeding mechanism; Fig. 3 is a perspective view of a conventional example; FIG. 2 is a perspective view of a conventional example. l...IC chip feeding mechanism. 2... Shoot rail. 2a...IC chip sending side. 2b...IC chip supply side, 3...Frame. 4...Stopper drive unit, 5...Piston rod. 6... Stopper, 7... Feeding drive unit. 8... Piston rod for feeding, 9... Link receiving part. 10... Link, 10a... Rotating fulcrum. DESCRIPTION OF SYMBOLS 11... Urging means, 12... Rotating part, 13... Pressing part. 50...IC chip.

Claims (2)

[Claims] (1) The IC chip supplied to the chute rail of the IC chip supply section of the handling device is received by the stopper, and the pressing section is rotated to press the second IC chip from the stopper toward the IC chip supply side. After locking, remove the stopper and send out the first IC chip, then rotate the pressing part to remove it from the IC chip, catch the IC chip again with the stopper, and rotate the pressing part again. An IC chip feeding method for a handling device, characterized in that IC chips are fed out one by one by repeatedly pressing and locking a second IC chip from a stopper. (2) An IC chip feeding mechanism provided on a chute rail of an IC chip supply section of a handling device, comprising a stopper drive section provided on a frame on the IC chip sending side of the chute rail, and a stopper drive section that moves up and down with respect to the stopper drive section. a piston rod provided freely; a stopper provided at the tip of the piston rod; a feed drive section provided on the frame on the IC chip supply side from the stopper drive section; a feed piston rod provided at the feed piston rod; a link receiving portion provided at the tip of the feeding piston rod; a link abutting the link receiving portion and rotatably relative to the frame; and a link supporting the link. a biasing means provided on the frame; a rotating portion attached to the rotation fulcrum side of the link; and a pressing unit that presses against the second IC chip from the stopper toward the IC chip supply side. 1. An IC chip feeding mechanism for a handling device, characterized in that the IC chip feeding mechanism comprises a pressing part which is freely provided and is formed at the outermost part of the rotating part.