JPH03220747A - Apparatus for correcting position of electronic parts - Google Patents

Abstract

PURPOSE:To provide a positioning device adaptable to a change of shape of parts by using two V-shaped claws, one for smaller parts and the other for larger parts movable in two directions: one is the direction along which the two claws oppose each other and the other is perpendicular to that direction. CONSTITUTION:Corrective blocks 2 and 3, facing each other, have V-shaped claws 21 and 21' provided integrally at their ends, respectively. The claw 21 is smaller than the claw 21'. The blocks 2 and 3 with claws have means for moving them relatively in such a manner that they face each other or they are perpendicular to each other. This means for moving is adjusted by turning a shaft that has two threads cut in the opposite directions. Therefore, there is no need to replace the claws 21 and 21' when the sizes of objects 1 and 9 change. Further, accurate positioning is possible by adjusting the axes of the blocks 2 and 3 if the square object 1 is replaced with the rectangular object 9.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a technology for transporting electronic components, and is mainly used for correcting the setting position of electronic components on an inspection device when inspecting semiconductor integrated circuit devices (hereinafter referred to as IC). The target is the organization.

[Conventional technology]

In IC manufacturing, when transporting RC for the purpose of inspecting and sorting completed ICs using inspection equipment, etc., in order to accurately insert the IC into the socket of the measuring device that connects the IC and the tester, it is necessary to It is necessary to accurately correct the position and angle of the vacuum suction nozzle at a predetermined position while the IC is being transported.

Conventionally, the devices used for this position correction have been able to make corrections in both the X-axis and Y-axis directions within one plane, but the problem is that the structure is complex, the operation is complicated, and it takes time to make corrections. was there.

In contrast, as shown in the principle diagrams in FIGS. 5 and 6, the present applicant has developed an IC by bringing a pair of opposing V-shaped claws closer together.
A correction method has been developed in which the position is corrected while holding the
, Jitsukō 58-18286, Jitsukō 61-22346
).

[Problem to be solved by the invention]

The above-mentioned correction technique using a pair of V-shaped blocks with claws has a simpler structure and easier operation than the conventional correction mechanism in the X-axis and Y-axis directions, but the shape of the electronic component , the response to changes in dimensions is not necessarily sufficiently considered.

For example, when the dimensions of the target part change, it becomes necessary to change the position correction V-shaped claw shown in FIG. 5 to one of a different size.

Alternatively, when the electronic component is rectangular as shown in FIG. 6, it is necessary to prepare claws with sufficiently large dimensions in consideration of the mutual misalignment of the central axes of the opposing V-shaped claws.

The present invention is intended to solve the above problems, and its purpose is to provide a position correction device that can be used without replacing the component parts even if the size or shape of the target part changes. .

[Means to solve the problem]

To achieve the above object, the present invention provides a pair of opposing V
This device has a correction block with a V-shaped claw, and corrects the center position and angle of a square electronic component by holding it diagonally between the V-shaped claws. One of them is adapted to be adapted to small-sized parts, and the other to large-sized parts, and these correction blocks with claws are characterized by having means for relatively movable movement in directions facing each other and in directions perpendicular to each other. That is.

The present invention also provides the above-mentioned position correction device, wherein the means for moving the two correction blocks with claws in a direction perpendicular to the direction in which they face each other is adjusted via one shaft having opposite screws. It is.

[Effect]

According to the above-described means, even if the dimensions of the component to be position corrected change, it can be immediately dealt with without replacing the V-shaped claw for position correction.

Also, even if the part whose position is to be corrected changes to a square or rectangle, V
Accurate position correction is possible simply by shifting the axes of the correction blocks with letter-shaped claws.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view of an electronic component position correcting device which is an embodiment of the present invention, and shows the shape when correcting the position of a square electronic component. FIG. 2 is also a front view thereof.

FIG. 4 is a perspective view of a square electronic component (QFI package IC) as an example of a component whose position is to be corrected.

In Fig. 1, reference numerals 2.3 denote opposing plate-shaped correction blocks, each of which has a V-shaped claw 21, 21' integrally provided at its tip (opposing part);
) is becoming smaller, and the other claw (21') is becoming larger.

The left and right correction blocks 2.3 each have a pedestal l0110
' can be slid laterally along the X-X direction guide 7, and a long spring 5 is inserted between the two blades, so that they are always drawn toward the center. ing. One block (2) and the pedestal (
A short spring 6 is inserted between the blocks (10'') to move the blocks toward the center, and the position is defined by a stopper 8.

Reference numeral 4 denotes a sample stand fixed on a pedestal 17 at a position midway between the left and right correction blocks.

As shown in FIG. 3, the left and right pedestals 10 and 10' can each be slid vertically by a Y-Y direction guide shaft 14 supported by a shaft support 16 on a common pedestal 17, and can be adjusted vertically by an adjustment screw. The positions of the two can be mutually changed.

As shown in Figs. 1 and 2, this adjustment screw has a right-hand thread 19 on one axis provided between the two y-y' direction guides, and a left-hand thread 20 on the other part, respectively. The NAND (projection plate 1) of the pedestal 10.10' is engaged with the pedestal 10, and by turning the adjustment knob 12, the left and right pedestals can be moved and adjusted in opposite directions.

To correct the position of the square electronic component, the correction block 2.3 is driven to open left and right as shown in FIG. Put 1.

Next, release the force of the air cylinder and release the long spring 5 and the short spring 6.
The square electronic component is sandwiched between the V-shaped claws in the diagonal direction by the shrinking force of the square electronic component, and its position and angle are defined. In this case, the center axes of the opposing claws are at the same position.

Once the position of the electronic component is determined, the correction block is moved back, and the electronic component is picked up by suction using a vacuum suction tool or the like and moved to a predetermined position, for example, a socket for inspection, and then inspected.

When correcting the position of a rectangular electronic component, it is necessary to shift the center of each correction block 2.3 by ±a as shown in FIG.

Figure 2 shows a case where the rectangular electronic component 9 is set using the correction device shown in Figure 1, by operating the adjustment screw to move the left and right cradle, and with the center of the correction block shifted. show.

In such a position correction device, one of the V-shaped claws at the tip of the correction block has a large dimension and the other has a small dimension. The dimensions will match the electronic components.

According to the correction apparatus of the present invention described above, (1) in the case of a square electronic component, the correction block 2 is fixed as shown in FIG.
．． (2)
In the case of a rectangular electronic component 9, the center line of the correction block 2.3 is shifted by an arbitrary amount a by rotating the adjustment knob 12 as shown in FIG. Furthermore, electronic parts 1 of the same shape
．． 9, it is easy to adjust the stopper 8 and change the stopping position of the correction block 2 so that the center of the electronic component 1.9 coincides with the center of the sample stage 4. becomes possible.

Note that a cam or the like may be used instead of an air cylinder for the opening operation of the left and right correction blocks.

〔Effect of the invention〕

According to the present invention described in the embodiments above, the following effects can be achieved.

Even if the shape and dimensions of electronic components change, it can be handled flexibly, so by incorporating this device, it has become possible to greatly improve the versatility of the autohandler for characterizing electronic components.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 and FIG. 2 are plan views of an electronic component position correction device that is an embodiment of the present invention. FIG. 3 is also a front view thereof. FIG. 4 is a perspective view showing an example of an electronic component whose position is to be corrected. 9- FIGS. 5 and 6 are schematic plan views showing the positional relationship between a conventional V-shaped correction block with claws and electronic components. FIG. 7 is a schematic plan view showing the principle of the positional relationship between the V-shaped correction block with claws and electronic components according to the present invention. 1... Square electronic component, 2.3... Correction block, 4... Sample stand, 5... Long spring, 6... Short spring, 7... Slide guide 1.8...・Stopper, 9... Rectangular electronic component, 10... Correction plate holder, 1
1... Overhang plate, 12... Adjustment screw, 13...
flange, 14... linear shaft, 15... linear motion bearing, 16... shaft support, 17... base, 18...
・Flange guide, 19...right-hand thread, 20...
Left-hand screw. 10- Figure 1 Figure Figure Figure Figure

Claims (1)

[Claims] 1. It has a pair of opposing V-shaped correction blocks with claws, and a rectangular electronic component is sandwiched diagonally between the V-shaped claws to adjust its center position and angle. This is a correction device, in which one of the left and right V-shaped claws is formed to adapt to small-sized parts, and the other to suit large-sized parts, and these correction blocks with claws are arranged at right angles to the direction in which they face each other. An electronic component position correction device characterized by having a means that is relatively movable in a direction. 2. In the electronic component position correction device according to claim 1,
The means for moving the two claw correction blocks in a direction perpendicular to their facing direction is adjusted via one shaft having opposite threads.