JPH0639451Y2 - Tab tester - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] In the present invention, a large number of ICs are attached to a tape at predetermined intervals, and a lead line of each IC is printed on the tape. A tab tester that automatically conveys a so-called tab tape and presses the tape to the IC test head side during the test to test the IC, and is particularly suitable for preventing misalignment between the wiring pattern in the tape and the IC test head. Regarding tab tester.

[Conventional technology]

A large number of ICs, their wiring patterns, etc. are sequentially attached to a polyester-based film one segment at a time to form a tape. A tab tester has been generally used as a device for testing the pass / fail of ICs in this tape (hereinafter referred to as tab tape).

The tab tape wound on the reel is wound on the index pulley and pitch-fed at a predetermined indexing pitch.
An IC test head for testing an IC is arranged in the middle of the tab tape that is automatically fed by indexing, and the tab tape is pressed against the IC test head side by a pressing head at a position facing the IC test head, and a continuity test, etc. A pass / fail test will be conducted. The tested tab tape is rewound onto the reel, and the segment of the tab tape containing the defective IC is punched out.

[Problems to be solved by the device]

In the above-mentioned tab tester, the tab tape is stretched over a pair of index pulleys on the IC test head, and is pressed toward the IC test head side by the pressing head arranged approximately in the middle. Therefore, the tab tape stretched between the pair of index pulleys may be pushed downward to cause some bending, and the positional deviation may occur due to the downward bending, and the wiring pattern in each segment of the tab tape may be generated. And the position of the IC test head do not match. Since the wiring pattern connected to the IC in each segment in the tab tape has an extremely small width, there is a problem that the continuity test cannot be accurately performed even if a slight displacement occurs.

The present invention solves the above problems, and an object of the present invention is to provide a tab tester capable of performing an accurate test without the positional deviation between the tab tape and the IC test head.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a device for fixing a device in a tab tester that presses an IC arranged in a tape that is automatically conveyed to a side of an IC test head at a predetermined position to conduct a continuity test of the IC. To the frame body that is positioned and movable to the side, and to configure a dove tester that includes a pressing head that presses the tape toward the IC test head side and an index pulley that indexes and rotationally feeds the tape,
A tab tester is provided with tab brake means for temporarily stopping the tape at a predetermined position.

[Action]

The tape delivered from the reel is indexed by an index pulley. Since the index pulley and the pressing head are held by a single frame, both move simultaneously with the movement of the frame. That is, when the pressing head presses the tape toward the IC test head, the index pulley also moves downward at the same time. Therefore,
The tape is pressed toward the IC test head side with almost no downward bending. Therefore, the positional deviation between the IC test head and the extremely small width arrangement pattern of the IC stuck on the tape surface does not occur. Further, since the tape is fixed at a predetermined position by the IC tab brake means prior to the pressing of the tape, the displacement of the tape is completely prevented.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

FIG. 1 is a front view showing the outline of the overall structure of the tab tester of this embodiment, FIG. 2 is a side view of FIG. 1, FIG. 3 is a front view showing the detailed structure of the main parts of the embodiment, and FIG. A side view of FIG. 3,
5 is a top view of FIG. 3, FIG. 6 is a top view of the tab brake means, and FIG. 7 is a front view of FIG.

In FIGS. 1 and 2, the frame 1 is provided with a pressing head 2
A pair of index pulleys 3 and 4 and tab brake means 5 and 6 that engage with the respective index pulleys 3 and 4 are provided. Further, as will be described later in detail, the frame 1 is supported on the main body side of the apparatus by a motor 7 or the like so as to be capable of positioning and moving. The tab tape 8 is a reel 9 that is pivotally supported by the main body of the apparatus.
The tab tape 8 wound on the reel 9 and fed from the reel 9 is wound on the index pulley 3 via the tension pulley 10 and the direction changing pulley 11, advances in the horizontal direction, and is wound on another index pulley 4 to change the direction. 12
And another reel 14 via tension pulley 13
To be wound up. An IC test head 15 is arranged on the lower side facing the pressing head 2 and fixed at a predetermined position by means not shown.

As shown in FIG. 2, the motor 7 is fixed to the frame 16, and the frame 16 is slidably supported on the fixed side of the device. A drive motor 17 is connected to the reel 14.

Next, the detailed structure of the tab tester will be described with reference to FIGS. 3 and 5.

A guide rail 18 is arranged on the fixed side of the device, and a slide base 19 is supported thereon so as to be slidable in the XX direction.
The operation is performed by the motor 20 shown in FIG. A guide rail 21 is arranged on the slide base 19 along the YY direction which is orthogonal to the XX direction on the same plane (FIG. 4), and slidably supports the frame 16 along the YY direction. The operation is performed by the motor 22. The motor 7 is fixed to the support plate 23 fixed to the frame 16. A feed screw 26 is connected to the rotary shaft 24 of the motor 7 via a coupling 25. The feed screw 26 is pivotally supported while being restrained from moving in the axial direction by brackets 27 and 28 that fix the top and bottom of the feed screw 26 to the frame 16 side. The feed screw 26 is in the ZZ direction (vertical direction in the figure)
Are arranged along.

On the other hand, the frame body 1 is composed of frame body portions 1a and 1b which are horizontally spread in the YY direction and a projecting frame body portion 1c projecting upward (in the ZZ direction) at an intermediate portion thereof as shown in FIG. A nut 29 screwed with the feed screw 26 is fixed to the portion 1c. Also,
A guide rail 30 is fixed to the frame 16 side, and a guide member 31 provided on the protruding frame body portion 1c side is slidably engaged.

On the other hand, the pressing head 2 is formed of a frame structure 32 and a head part 33 fixed to the lower end of the frame structure 32 so as to come into contact with the tab tape 8. The guide member 34 fixed to the frame structure portion 32 engages with the guide rail 35 fixed to the protruding frame body portion 1c of the frame body 1, and supports the frame structure portion 32 slidably in the vertical movement (ZZ direction). To do.

Bearings 36 and 37 that pivotally support the index pulleys 3 and 4 are fixed to the frame bodies 1a and 1b of the frame body 1 (FIG. 5). In addition, the rotary shafts 38 and 39 fixed to the index pulleys 3 and 4 are
It is pivotally supported by 7 and connected to index motors 42, 43 via couplings 40, 41.

As well shown in FIGS. 4 and 5, a cylinder 44 is fixed to the protruding frame body portion 1c, and an inclination member is provided at the end of the rod 45 thereof.
45 are connected. Further, on the frame structure 32 side of the pressing head 2, there is provided a roller 46 that abuts and engages with the inclined surface of the inclined member 45.

Next, the tab brake means 5 and 6 (FIG. 1) will be described with reference to FIGS. 6 and 7.

Since the tab brake means 5 and 6 have the same shape, only one will be described. The base 47 is fixed near the index pulleys 3 and 4 of the frame portions 1a and 1b of the frame body 1. Tab tape 8
A guide shaft 50 that movably supports the brake pieces 48 and 49 that are directly in contact with and is movable in the XX direction is fixed to a bracket 51. The bracket 51 is connected to a brake cylinder 52 fixed to the base 47 side.

As shown in FIG. 6, the brake pieces 48 and 49 are for fixing the tab tape 8 by abutting the flat portion 8a on the outer side of the feeding film hole of the tab tape 8 and moving along the guide shaft 50. The reason why the tab tape 8 is supported is that it can accommodate different widths of the tab tape 8.

Next, the operation of this embodiment will be described in more detail.

First, the positioning of the pressing means 2 will be described.

By operating the motor 20 and the motor 22, the frame 16 moves in the X direction and the Y direction. Since the motor 7 is fixed to the frame 16 and the frame 1 is connected to the motor 7 side via the feed screw 24, the frame 1 also moves as the frame 16 moves in the X and Y directions.

On the other hand, when the cylinder 44 fixed to the frame body 1 is operated and the tilting member 45 is moved, 46 fixed to the frame structure 32 of the pressing head 2 is pushed down by the tilted surface of the tilting member 45, and the frame structure 32 and The head portion 33 moves down.

The pressing head 2 supported by the frame 1 by the above operation is the IC
Positioning is performed with respect to the test head 15 side, and alignment is also performed by a CCD camera provided on the IC test head 15 side.

Next, a method of testing the tab tape 8 in this embodiment will be described.

As shown in FIG. 1, the tab tape 8 wound around the reel 9 is sent out by operating the drive motor 17 of the reel 14, and as described above, the tension roller 10, the direction changing roller 11 and the pair of rollers. Through the index pulleys 3 and 4, the direction change roller 12, the tension roller 13, etc., the reel 14
It is wound up on the side. After the tab tape 8 is stretched and installed between the pair of index pulleys 3 and 4, the tab tape 8 is attached to the index motor 4 of the index pulleys 3 and 4.
It will be operated with 2,43 index feeds.

When the tab tape 8 is arranged at a predetermined position facing the IC test head 15, first, the brake cylinders 52 of the tab brake means 5 and 6 are actuated, and the flat portion 8a of the outer edge of the tab tape 8 is activated.
Is pressed by the brake pieces 48, 49 to fix the tab tape 8 at a predetermined position.

Next, when the motor 7 operates, the feed screw 26 rotates at a fixed position, and the nut 29 screwed with the feed screw 26 moves in the Z direction (downward). Since the nut 29 is fixed to the protruding frame pair portion 1c of the frame pair 1, the entire frame body 1 moves downward.

Since the frame structure portion 32 of the pressing head 2 is held in a fixed position on the frame body 1, the entire pressing head 2 moves downward together with the frame body 1 by the same amount. First, since the index pulleys 3 and 4 are pivotally supported by the frame body 1, the index pulleys 3 and 4 are
Also moves downward by the same amount as the frame 1 descends. That is, the tab tape 8 is the index pulley 3,
As a result, the head portion 33 of the pressing head 2 moves to the IC test head 15 side and is pressed to the IC test head 15 side. By the above operation, the tab tape 8 is moved to the IC test head 15 side without any displacement, and the predetermined test is performed by matching the arrangement pattern connected to the IC of each segment with the IC test head 15. become.

When the test is completed, the motor 7 is rotated in the reverse direction, the frame 1 is raised, the pressing head 2 and the index pulleys 3 and 4 are moved upward by the same amount, and then the cylinder 52 of the tab brake means.
And release the brake on the tab tape. Next, the index motors 42 and 43 are sequentially fed, and the next segment of the tab tape 8 is tested according to the same procedure as described above.

[Effect of device]

 According to the present invention, the following effects can be obtained.

(1) Since the pressing head and the index pulley that feeds the index while tensioning the tab tape are configured to move by the same amount at the same time, displacement or displacement of the tab tape due to pressing by the pressing head does not occur, and the tab tape The alignment between the IC wiring pattern inside and the IC test head can be ensured accurately, and high-precision IC testing can be performed.

(2) Since the pressing head and the index pulley are held by the frame body in the same manner, it is not necessary to separately perform relative positioning between them and the IC test head, and the positioning can be performed accurately and easily. You can

(3) By adopting the tab brake means, the tab tape is more securely fixed at a predetermined position, and a highly accurate IC test can be performed.

[Brief description of drawings]

FIG. 1 is a front view showing the outline of the overall structure of an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a front view showing the detailed structure of the main part of the embodiment. 3 is a side view of FIG. 3, FIG. 5 is a top view of FIG. 3, FIG. 6 is a top view of the dove brake means, and FIG. 7 is a front view of FIG. 1 ... frame body, 1a, 1b ... frame body portion 1c ... protruding frame body portion, 2 ... pressing head 3,4 ... index pulley 6 ... tab brake means 7,20,22 ... motor 8 ... … Tab tape, 9,14 …… Reel 10,13 …… Tension pulley 11,12 …… Direction pulley 15 …… IC test head 16 …… Frame, 17 …… Drive motor 18,21 …… Guide rail 19 …… Slide base 23 …… Support plate, 24 …… Rotary shaft 25,40,41 …… Coupling 26 …… Feed screw 27,28,51 …… Bracket 29 …… Nut 30,35 …… Guide rail 31,34… … Guide member 32 …… Frame structure part, 33 …… Head part 36,37 …… Bearing part 38,39 …… Rotary shaft 42,43 …… Index motor 44 …… Cylinder, 45 …… Inclined member 46 …… Roller , 47 …… Base stand 48, 49 …… Brake piece 50 …… Guide shaft 52 …… Brake cylinder

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H01L 21/66 G 7630-4M

Claims (2)

[Scope of utility model registration request] 1. A tab tester that presses an IC attached to an automatically conveyed tape to a side of an IC test head at a predetermined position to perform a continuity test of the IC and the like so that the tab tester can position and move the fixed side of the device. Put the tape on the IC
A tab tester, comprising: a pressing head for pressing the test head side; and an index pulley for indexing and rotating the tape. 2. A tab brake means for temporarily stopping a tape wound around the index pulley at a predetermined position is attached to the frame body supporting the pressing head and the index pulley. Tab tester described in.