JP2576561Y2 - Test equipment for TAB with tape break detection error prevention mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to a TAB testing device,
More specifically, the present invention relates to a TAB test apparatus that prevents a tape breakage detection sensor from operating due to play between a reel hob and a reel shaft in a TAB auto handler.

[0002]

2. Description of the Related Art A TAB is formed by forming a semiconductor chip on a tape-like film as described in, for example, Japanese Patent Application No. 63-155847. Such a TAB
The configuration of a TAB test apparatus for testing the test will be described with reference to FIG. In FIG. 6, 21A, 21B, 22A and 22B are rollers,
1A and 1B are reels, 24A and 24B are sprockets,
25 is a TAB and 26 is a measuring unit.

[0006] The test apparatus shown in FIG. 6 is symmetrical, so that the TAB 25 can be transported to the right or left. For example, the TAB 25 before the test is wound around the reel 1A, and the TA that has been measured by the measuring unit 26 is wound around the reel 1B.
Wind up B25. The sprockets 24A and 24B transport the TAB 25 from the reel 1A to the reel 1B.

Next, the structure of the roller 21A in FIG. 6 will be described with reference to FIG. When transporting and positioning the TAB 25, a TAB 25 is used to eliminate bending and waving of the TAB 25.
Apply some tension to B25.

In FIG. 7, 27A is a roller guide, 28A is a pulley, 29A is a rope, and 30A is a weight. With this configuration, the roller 21A is constantly provided with a tension corresponding to the weight 30A.

The configuration of a TAB test apparatus using this tension mechanism will be described with reference to FIG. 8, 31 in FIG.
Denotes a sensor, 33 denotes a tape break detection sensor, and 34 denotes a detection plate attached to the roller 21A.

When the reel 1A is fixed and the TAB 25 is conveyed rightward by the 24A sprocket, the roller 2A
1A also moves rightward, and the detection plate 34
Is detected by At this time, the reel 1A starts rotating the TAB 25 in the feed direction at a speed faster than the transport speed of the TAB 25.

FIG. 9 is a state diagram in which the roller 21A has moved leftward from FIG. As shown in FIG. 8, when the reel 1A rotates, the roller 21A moves leftward regardless of the feed of the TAB 25.

FIG. 10 is a view showing a state in which the roller 21A is further moved leftward from FIG. As shown in FIG.
Is detected by the sensor 32, the reel 1A is set to TAB2
Stops regardless of the feed of 5. By transporting the TAB 25 from FIG. 10, the roller 21A moves rightward until the state of FIG. 8 is reached. The contents described with reference to FIG. 6 to FIG.
It is described in the specification of 2-41356.

[0010]

In the prior art shown in FIG. 10, the reel 1A always stops when the detection plate 34 is detected by the sensor 32, but when the TAB 25 is cut, the roller 21A is further moved to the left. Because of the movement, the detection plate 34 is detected by the tape breakage detection sensor 33, and the test apparatus itself stops.

However, in the prior art, although the reel 1A is stopped, the roller 21A moves to the left in addition to the TAB 25 being cut, and the tape break sensor 33 detects the detection plate 34. Sometimes. This state is referred to as "tape break error detection" in this specification, and will be described in detail below.

FIG. 2 is a sectional view of the reel rotating unit, wherein 1 is a reel, 2 is a reel shaft, 3 is a key which enters a key groove 13 of a reel hob 12 located at the center position of the reel 1 described in FIG. Is a stopper to fix the reel,
Reference numeral 5 denotes a collar for adjusting the width of the reel, 6 denotes a plate, 7 denotes a rotating shaft, 8 denotes a guide shaft, and 9 denotes a spring.

The plate 6 uses the four guide shafts 8 as guides to continuously push the reel 1 in the direction of the stopper 4 by means of a spring 9. The collar 5 serves as an adjusting spacer when the width of the reel 1 is changed, and has a configuration in which the reel 1 is sandwiched between the collar 5 and the plate 6.

The reel shaft 2 includes a motor (not shown)
Is further connected to the rotating shaft 7 connected to the rotating shaft 7. Key 3
Is a guide for the key groove 13 of the reel 1 and rotates the reel 1 by rotating the reel shaft 2.

As shown in FIG. 3, the reel shaft 2 and the key 3 are slightly smaller than the reel hob 12 and the key groove 13. On the contrary, the relief holes of the collar 5 and the plate 6 are made larger than the reel hob 12. Therefore, the key 3 presses the key groove 13 to transmit rotation to the reel 1.

Next, the relationship between the reel shaft 2 and the reel 1 will be described with reference to FIGS. First, even if the reel shaft 2 rotates from the state shown in FIG. 3, the reel 1 does not rotate until the key 3 contacts the end face of the key groove 13 as shown in FIG. On the other hand, even if the rotation of the reel shaft 2 stops,
Since the reel 1 tries to rotate even immediately after the reel shaft 2 stops due to the inertial force, the reel 1 does not stop until the end face on the opposite side of the key groove 13 is hit by the key 3 as shown in FIG.

As described above, in the conventional reel rotating mechanism of the TAB test apparatus, the key 3 of the reel shaft 2 is connected to the key groove 13 of the reel hob 12, and the reel 1 rotates and stops. In such a conventional technology, when the reel hob 12 shown in FIG. 5 is a one-inch type, a clearance of about 1 mm occurs between the key 3 and the key groove 13 at a position about 15 mm from the center of rotation.

Next, returning to FIG. 10, "error detection of tape break"
An occurrence situation will be described. Assuming that the outer diameter of the reel 1A is 600 mm, the TAB 25 wound to the outermost diameter is sent out by about 20 mm after the reel shaft 2 stops after calculating from FIG. Move in the direction.

If the distance between the sensor 32 and the tape breakage detection sensor 33 is within 10 mm, the detection plate 34 is detected by the tape breakage detection sensor 33, resulting in "tape breakage", and the test apparatus stops.

Therefore, it is sufficient to extend the space between the sensor 32 and the tape breakage detection sensor 33, but the device itself becomes larger accordingly. Further, when the reel shaft 2 is thinner, for example, 8 mm in diameter type and 8 mm in prismatic diameter type, the material of the reel is generally aluminum or synthetic resin material. There was an expansion. In such a case, the feed amount of the TAB 25 from the reel 1A after the stop of the reel shaft 2 is further increased, so that there is a problem that the distance between the sensors has to be further extended according to the use situation.

This invention solves such disadvantages of the prior art, enables prevention of "erroneous detection of tape breakage" without increasing the size of the apparatus itself, and deforms and expands even if the keyway is used for a long period of time. It is an object of the present invention to provide a TAB test apparatus with a tape breakage erroneous detection prevention mechanism having excellent reliability and durability.

[0022]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention connects the key 3 of the reel shaft 2 and the key groove 13 of the reel hob 12 to rotate the reel 1,
The TAB test apparatus that winds the reel 25 after measuring the B25 transmits the power of the reel shaft 2 that transmits the rotation to the reel 1 to the reel 1 by the close contact members 10 and 11, and rotates and stops.

[0023]

According to the invention, when the reel shaft 2 rotates, the reel member 2 is attached to the reel 1 by the elastic members 10 and 11.
Is transmitted and the reel 1 rotates, and when the reel shaft 2 stops, the elastic members 10 and 11 are connected to the reel 1 so that the reel 1 stops without rotation after the reel shaft 2 stops.

[0024]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment of the test apparatus for B will be described in detail. In this embodiment, the structure other than the reel rotating unit is the same as that of the prior art, and a duplicate description will be omitted.

FIG. 1 is a sectional view of a reel rotation unit showing an embodiment of a TAB test apparatus with a tape breakage error detection prevention mechanism according to the present invention. In FIG. 1, reference numerals 10 and 11 denote adhesion members having high adhesion, such as rubber. The rubber 10 is fixed to a collar 35, and the rubber 11 is fixed to a plate 36. Also, the relief holes of the collar 35 and the plate 36 are:
Reel hob 12 of reel 1 (see FIG. 3) and keyway 1
3, the clearance between the reel shaft 2 and the key 3 is set to the strictest dimensional relationship.

By the mechanism of the rotating unit, the collar 3
5, reel 1 and plate 36 are rubber 10, rubber 1
1 and is brought into close contact with the stopper 4 by the reaction force of the guide shaft 8 and the spring 9. In FIG. 1, the reel shaft 2
When the key 3 rotates, the key 3 rotates the collar 35 and the plate 36 without play, and at the same time, the reel 1 in close contact with the collar 5 and the plate 6 can also rotate.

That is, in this embodiment, the key 3 of the reel shaft 2 and the key groove 13 of the reel hob 12 are connected to rotate and stop the reel 1 as in the prior art described with reference to FIGS. It is not a transmission mechanism, but rubber 10.1
The rotation of the reel shaft 2 is transmitted to the reel 1 by bringing the collar 35, the reel 1, and the plate 36 into close contact with each other by the frictional conduction of 1 and the reaction force of the stopper 4, the guide shaft 8 and the spring 9.

Therefore, in the state shown in FIG. 10, it is possible to stop the reel 1A at the same time when the detection plate 34 is detected by the sensor 32, and the TAB 25 is sent out by the inertia force of the reel 1 and the "tape out""Erroneousdetection" can be prevented.

[0029]

According to the present invention, since the reel shaft can be stopped regardless of the play between the reel shaft and the reel hob, "erroneous detection of tape breakage" in the tension mechanism can be prevented. Further, since a load is not directly applied to the reel hob and the key groove, even if the reel is used for a long period of time, it is possible to improve the durability without wear and deformation.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a reel rotating unit to which a mechanism for absorbing play of a reel shaft and a reel hob according to the present invention is added.

FIG. 2 is a configuration diagram of a reel rotation unit according to the related art.

FIG. 3 is an explanatory diagram showing a state in which a reel hob follows a rotation of a reel shaft according to a conventional technique.

FIG. 4 is an explanatory diagram showing a state in which a reel hob follows the rotation of a reel shaft according to a conventional technique.

FIG. 5 is an explanatory view showing a state in which a reel hob follows a rotation of a reel shaft according to a conventional technique.

FIG. 6 is a configuration diagram of a conventional TAB test apparatus.

FIG. 7 is a configuration diagram of a tension mechanism in FIG. 6;

FIG. 8 is an operation explanatory view of the tension mechanism of FIG. 7;

FIG. 9 is an operation explanatory view of the tension mechanism of FIG. 7;

FIG. 10 is an operation explanatory view of the tension mechanism of FIG. 7;

[Explanation of symbols]

 Reference Signs List 1 reel 2 reel shaft 3 key 4 stopper 7 rotation axis 8 guide shaft 9 spring 10 rubber 11 rubber 12 reel hob 13 key groove 35 collar 36 plate

Claims (1)

(57) [Scope of request for utility model registration] A reel (1) is rotated by connecting a key (3) of a reel shaft (2) and a key groove (13) of a reel hob (12),
In a TAB test device that measures the TAB (25) and winds it on the reel (1), the power of the reel shaft (2), which transmits rotation to the reel (1), is transmitted to the reel (1) by the contact members (10, 11). TAB with a mechanism to prevent erroneous detection of tape break, characterized by rotating and stopping
Test equipment.