JP3347117B2 - Tape pressure welding device and tape pressure welding method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TCP (Tape Car) in which a driving circuit is mounted on a flexible wiring board.
The present invention relates to a tape pressing apparatus and a tape pressing method for thermocompression-bonding a package on a panel (a glass substrate provided with electrodes).

[0002]

2. Description of the Related Art In a manufacturing process of a liquid crystal display (LCD), there is a process of mounting TCP on a panel electrode.
This step includes a step of attaching an anisotropic conductive film (ACF) to a glass substrate, a step of positioning the TCP on the glass substrate, and a step of bonding the TCP to the electrodes by heating and pressing the TCP. . Hereinafter, the pressure bonding step will be described with reference to the side view of FIG.

[0003] First, as shown in FIG. 3 (a), the tip of the panel 7 on which the anisotropic conductive film 3 is adhered and the TCP 4 is aligned is conveyed from the stage 6 onto the receiving table 5.

After the panel is transported, as shown in FIG. 3B, the pedestal 5 rises to support the panel 7 from below. When the signal indicating that the support is completed is sent to the upper pressure contact head 1, as shown in FIG. 3C, the pressure contact head 1 is lowered, and the panel 7 is pressed with a cushion material (a material for evenly applying pressure). Press with head 1 and cradle 5.

After the pressing is completed, the press contact head 1 is raised, and the receiving table 5 is lowered. The pressure welding head 1 is mainly made of stainless steel. The receiving table 5 is made of stainless steel and is heated to a temperature ranging from room temperature to 400 ° C. together with the press-contact head.

[0006]

However, when TCP is mounted on the electrodes of the panel using the above-described conventional tape pressing apparatus, foreign particles present below the panel exert various adverse effects. For example, accidents such as breakage of the glass substrate, disconnection of the TCP terminal due to breakage of the glass substrate, and insufficient press-fitting due to floating of the glass and loss of connection reliability occur.

The foreign particles include anisotropic conductive film dust, TCP cutting dust, glass dust, equipment wear dust, and the like.
It varies from μm to 5 mm. Conventionally, such foreign particles have been removed by a worker by deciding the frequency of cleaning on the pedestal and visually removing the particles using a cutter blade or tweezers.

[0008] However, increasing the frequency of cleaning leads to a reduction in the operating time of the equipment, as well as problems such as variations in the force applied by the operator when removing foreign particles and missed foreign particles.

It is an object of the present invention to provide a tape pressing apparatus and a tape pressing method capable of removing foreign particles under the panel when pressing the TCP to the panel and reducing poor connection between the panel and the TCP. It is in.

[0010]

According to a first aspect of the present invention, there is provided a tape pressing apparatus having a rectangular surface having a protruding portion in which a longitudinal portion of the rectangular surface protrudes to one side, and having a reverse L-shaped cross section. And a rectangular surface which is provided on the support and extends from the protruding portion and is rotatable around a portion of one side in the longitudinal direction which extends. A rotating plate having: a motor for rotating the rotating plate; a stopper movably provided on the rotating plate to control rotation of the rotating plate; and an electrode of the panel provided on the rotating plate. And a press-contact head for press-contacting the TCP and the TCP. A tape pressing device according to a second aspect of the present invention uses the tape pressing device according to claim 1 to clean the surface of the rotary plate by rubbing the surface of the rotary plate with a protruding portion of the receiving table, and then place the panel on the rotary plate to position the panel. And the TCP are thermocompression-bonded.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 and FIG. 2 are a front view and a side view of a tape pressing apparatus for explaining an embodiment of the present invention.

Referring to FIG. 1 and FIG. 2, the tape pressing apparatus of the present invention has a protruding portion 5A in which a longitudinal portion of a rectangular surface protrudes to one side, and has a reverse L-shaped cross section. A pedestal 5 of a panel 7 configured to be movable in the vertical direction;
A rotating plate 10 having a rectangular surface provided on the cradle 5 and extending from the protruding portion 5A so as to be rotatable around a portion of one side in the longitudinal direction, and the rotating plate 10
, A stopper 9 movably provided on the rotating plate 10 for controlling rotation of the rotating plate 10, an electrode of the panel 7 provided on the rotating plate 10, and T
It mainly comprises a pressure contact head 1 for pressure contact with the CP 4.

The rotating plate 10 is formed larger than the surface of the receiving table 5. The protruding portion 5A of the pedestal 5 is formed to be thinner than other portions, and the side surface of the protruding portion 5A in contact with the surface of the rotating plate 10 is formed to be coarser than other portions. The rotating plate 10 and the pedestal 5 are formed of stainless steel, and the thickness of the protrusion 5A of the rotating plate 10 and the pedestal 5 is about 1 mm. 1 and 2, 2 is a cushion material, 3 is AC
F, 4 are TCPs, 8 is a saucer, and S1 to S3 are sensors.

Next, a method of pressing the TCP on the panel 7 by using the tape pressing apparatus having the above-mentioned structure will be described with reference to FIG.
This will be described with reference to FIG. In FIG. 2, one motor 11 is omitted.

First, as shown in FIG. 1 and FIG.
The panel 7 having the TCP 4 aligned via the CF 3 is moved to the lowering position of the press contact head 1, and the end of the panel 7 is supported via the rotating plate 10 by the receiving table 5 heated by the heater.

Next, after the pressure contact head 1 is lowered and the TCP 4 is pressed against the panel 7 via the cushion material 2, FIG.
The press contact head 1 is raised as shown in FIG. Next, the panel 7 is moved by the transfer arm.

When the first sensor S1 detects that the panel 7 has moved to a certain position, the stopper 9 moves in the horizontal direction and shifts outside, and as shown in FIG.
Are 270 on one side in the longitudinal direction and 270 on the motor 11 as an axis.
It rotates about a degree and contacts the protruding portion 5A of the receiving table 5. Non-adhesive glass chips, TCP cutting chips, and the like existing on the rotating plate 10 due to the impact at the time of contact are dropped into the tray 8.

When the second sensor S2 detects that the rotating plate 10 has come into contact with the protrusion 5A of the pedestal 5, the pedestal 5 is moved to the position shown in FIG.
As shown in (d), it moves downward. The side surface of the protruding portion 5A that comes into contact with the surface of the rotating plate 10 is formed roughly to remove foreign particles. The foreign particles removed in this step are mainly sticky substances such as ACF and resin dust.

When the third sensor S3 detects that the cradle 5 has reached the middle of the lowermost point, the stopper 9 returns to the original position. The stopper 9 may return immediately after the movement. When the cradle 5 which has stopped the movement of the rotating plate 10 is lowered to the lowest point, the rotating plate 10 becomes free and the stopper 9
, And the pedestal 5 rises. Next, as shown in FIG. 2A, the next panel 7 on which the TCP 4 has been aligned is again conveyed onto the rotating plate 10, and the pressing operation by the pressing head 1 is repeated.

With the above operation, the foreign particles on the rotating plate 10 are subjected to the impact when the rotating plate 10 comes into contact with the protrusion 5A of the receiving table 5 and the brushing effect on the rotating plate 10 when the receiving table 5 descends. Can be removed reliably. In the above-described embodiment, the case where the motors 11 are provided on both sides of the rotating plate 10 has been described, but they may be provided on only one side. Further, a portion serving as an axis of the rotating plate 10 may be protruded so as to be connectable to the rotating shaft of the motor 11.

[0021]

As described above, according to the present invention, a rotary plate is provided on a pedestal, a TCP is pressed against a panel, and then the rotary plate is rotated to collide with a projection of the pedestal. By lowering and brushing the surface of the rotating plate,
Since foreign particles on the surface of the rotating plate can be reliably removed, poor contact between the panel and the TCP can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view of a tape pressing device for describing an embodiment of the present invention.

FIG. 2 is a side view of the tape pressing device for explaining the embodiment of the present invention.

FIG. 3 is a side view of a tape pressing device for explaining a conventional tape pressing method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pressing head 2 Cushion material 3 ACF 4 TCP 5 Receiving stand 5A Projection 6 Stage 7 Panel 8 Receiving tray 9 Stopper 10 Rotating plate 11 Motor

Claims (6)

(57) [Claims] 1. A panel receiving pedestal having a rectangular surface having a projecting portion protruding to one side and having an inverted L-shaped cross-section and movable vertically. A rotating plate having a rectangular surface provided on the receiving table and extending from the protruding portion and provided rotatably around a portion of one side in the longitudinal direction extending therethrough; and a rotating plate for rotating the rotating plate. A motor, movably provided on the rotating plate,
A tape pressing device, comprising: a stopper for controlling rotation of the rotary plate; and a pressing head provided on the rotary plate for pressing an electrode of the panel against TCP. 2. The tape pressing apparatus according to claim 1, wherein the rotating plate is formed larger than a surface of the receiving table. 3. The tape pressure welding device according to claim 1, wherein a side surface of the projecting portion of the receiving table that is in contact with the surface of the rotating rotating plate is formed to be coarser than other portions. 4. The tape pressure welding device according to claim 1, wherein a dust tray is provided below the projecting portion of the tray. 5. The tape pressure welding apparatus according to claim 1, wherein the thickness of the projecting portion of the receiving table is smaller than the thickness of the other portion. 6. A tape pressing device according to claim 1,
After cleaning the surface of the rotating plate by rubbing it with the protrusion of the cradle,
A tape pressing method comprising placing a panel on a rotating plate, positioning the panel, and thermocompression bonding an electrode of the panel and TCP.