CN101885951B - Aeolotropic conductive tape and attaching device and attaching method thereof - Google Patents

Abstract

The invention discloses an aeolotropic conductive tape and an attaching device and an attaching method thereof, and relates to the field of aeolotropic conductive tapes and attaching devices and attaching methods thereof. In order to solve the technical problems, the invention provides the easily-attached aeolotropic conductive tape. The aeolotropic conductive tape comprises a release paper tape and a multi-section glue material arranged on the first surface of the release paper tape, wherein the glue material and the first surface of the release paper tape have chromatic aberration.

Description

Anisotropic conductive tape and its attachment device and attachment method

【Technical field】

The invention relates to a conductive adhesive tape, an attaching device and an attaching method thereof, in particular to an anisotropic conductive adhesive tape, an attaching device and an attaching method thereof.

【Background technique】

Anisotropic Conductive Film (ACF) has been widely used in the assembly of precision electronic devices. Compared with traditional soldering techniques, it can connect devices with denser pins. FIG. 1 shows a schematic side view of an anisotropic conductive adhesive tape in the prior art, which includes a release paper tape 11 and a continuous adhesive material 12 disposed on one surface of the release paper tape 11 . Fig. 2 depicts the schematic diagram of the pasting process of the anisotropic conductive tape in the prior art, the feed wheel 15 transports the anisotropic conductive tape 10 along the arrow E direction, and the cutter 18 moves up and down along the arrow F direction according to a certain frequency, from the glue Cut out the rubber material section 121 on the material 12. When the adhesive material segment 121 runs between the indenter 13 and the target object 14 , the indenter 13 presses down to press the adhesive material segment 121 on the target object 14 . Release paper tape 11 is taken up by recovery wheel 16 then.

The anisotropic conductive tape in the prior art has disadvantages. In the process of attaching it, incomplete cutting by the cutter is prone to occur, which in turn leads to wrinkles, folds, and missing of the adhesive material on the target object. Poor connection can cause damage to electronic devices. In addition, the cutting knife is expensive, needs to be replaced frequently, and the adjustment of the precision (the adhesive material must be cut, but the release paper tape cannot be cut) is time-consuming, which adds a lot of cost to the manufacturing process.

【Content of invention】

An object of the present invention is to provide an anisotropic conductive adhesive tape that is easy to attach, which includes: a release paper tape; a multi-section adhesive material arranged on the first surface of the release paper tape, the adhesive material and There is color difference on the first surface of the release paper tape.

As an optional technical solution, the length of the section of glue material is greater than 20 mm, and the distance between two adjacent sections of glue material is 1 mm to 8 mm.

As an optional technical solution, the adhesive material is black.

As an optional technical solution, the first surface of the release paper tape is black.

As an optional technical solution, the adhesive material contains conductive particles.

Another object of the present invention is to provide a device for attaching anisotropic conductive tape, which includes: a tape supply mechanism; a release paper tape recovery mechanism; arranged between the tape supply mechanism and the release paper tape recovery mechanism The glue bonding mechanism between them; the color difference detector arranged between the adhesive tape supply mechanism and the glue bonding mechanism.

As an optional technical solution, the color difference detector includes a charge coupled device (Charge Coupled Device; CCD).

As an optional technical solution, the color difference detector is a laser emitting and receiving device.

Another object of the present invention is to provide a method for attaching an anisotropic conductive tape, which includes:

Step 1: providing the above-mentioned attaching device;

Step 2: provide anisotropic conductive tape, the anisotropic conductive tape includes: a release paper tape and a multi-section adhesive material arranged on the first surface of the release paper tape, the adhesive material and the release paper tape There is a color difference on the first surface of the paper tape;

Step 3: using the tape supply mechanism to supply the anisotropic conductive tape to the release paper recovery mechanism;

Step 4: using the color difference detector to detect the position of the glue;

Step 5: When a section of the adhesive material reaches the adhesive material bonding mechanism, the adhesive material bonding mechanism attaches the section of adhesive material to the target object;

Step 6: Recover the release paper tape by using the release paper tape recycling mechanism.

As an optional technical solution, the color difference detector judges the position of the glue material by finding a gap between two sections of the glue material.

Compared with the prior art, the advantage of the anisotropic conductive adhesive tape of the present invention is that it does not need to use a cutter during the attaching process, avoiding defects caused by incomplete cutting, and also saving the maintenance cost of the cutter.

【Description of drawings】

FIG. 1 shows a schematic side view of an anisotropic conductive adhesive tape in the prior art;

Fig. 2 depicts a schematic diagram of the attaching process of the anisotropic conductive tape in the prior art;

3 is a schematic side view of an anisotropic conductive adhesive tape according to a first embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating the attaching process of the anisotropic conductive tape in FIG. 3 .

【Detailed ways】

FIG. 3 is a schematic side view of the anisotropic conductive tape according to the first embodiment of the present invention. As shown in Figure 3, the anisotropic conductive adhesive tape 20 of the present embodiment includes: a release paper tape 21; a multi-section adhesive material 221 arranged on the first surface of the release paper tape 21, the adhesive material 221 and There is color difference on the first surface of the release paper tape. The anisotropic conductive adhesive tape 20 of this embodiment is applied to the manufacture of liquid crystal display devices. The adhesive material contains conductive particles, which are responsible for connecting the driving module and the glass substrate. Therefore, the length d of a section of adhesive material 221 is greater than the length of one driving module, that is, 20 mm. There is a gap 222 between two adjacent sections of glue, and the distance between two adjacent sections of glue is 1 mm to 8 mm, preferably 3 to 5 mm. The multi-segment adhesive material 221 may be formed on the release paper tape 21 by segment coating.

In this embodiment, the adhesive material 221 is black. The first surface of the release paper tape 21 is any color other than white, gray or black. In other embodiments, the first surface of the release paper tape may be black, and the adhesive material may be other colors than black.

FIG. 4 is a schematic diagram illustrating the attaching process of the anisotropic conductive tape in FIG. 3 . As shown in Figure 4, the anisotropic conductive tape attachment device of an embodiment of the present invention includes: an adhesive tape supply mechanism 25; a release paper tape recovery mechanism 26; The glue bonding mechanism 23 between the recovery mechanism 26 ; the color difference detector 29 arranged between the adhesive tape supply mechanism 25 and the glue bonding mechanism 23 . In this embodiment, the color difference detector 29 is a laser emitting and receiving device. In other embodiments, the color difference detector may be a camera including a Charge Coupled Device (CCD).

The attachment process of anisotropic conductive tape includes:

Step 1: providing the above-mentioned attaching device;

Step 2: providing the anisotropic conductive tape 20 as shown in FIG. 3;

Step 3: use the tape supply mechanism 25 to supply the anisotropic conductive tape 20 to the release paper recovery mechanism 26 along the direction of arrow G;

Step 4: Use the color difference detector 29 to detect the position of the adhesive material. The detection method is: the color difference detector 29 emits laser light to the adhesive tape 20; if no reflected laser signal is received, it means that the position corresponding to the color difference detector 29 has a black adhesive material 221; if the reflected laser signal is received, it means the color difference The position corresponding to the detector 29 is the gap 222 , and a section of glue material 221 has reached the glue material bonding mechanism 23 . In other embodiments, the gap 222 can also be found by using a charge-coupled device, so as to determine the location of the glue.

Step 5: When a section of the glue 221 reaches the glue laminating mechanism 23, the glue laminating mechanism 23 attaches the section of glue 221 to the target object 24; the glue laminating mechanism 23 can be A pressure head, which transmits the pressure to the adhesive material 221 through the release paper tape 21 without directly contacting the adhesive material 221 .

Step 6: Use the release paper tape recycling mechanism 26 to recover the release paper tape 21 .

It should be noted that the adhesive tape supply mechanism 25 in the anisotropic conductive tape attachment device in the above-mentioned embodiment; the release paper tape recovery mechanism 26; The stability and reliability of the structure may require a more complex structure, but this is not the focus of the present invention, so it will not be described again.

Claims (8)

1. aeolotropic conductive tape attaching method is characterized in that comprising:

Step 1: adhering device is provided, and described adhering device comprises:

The adhesive tape feed mechanism;

Separate-type paper is taken back and is received mechanism;

Be arranged on described adhesive tape feed mechanism and described separate-type paper and take back the glue material fit body of receiving between the mechanism;

Be arranged on the aberration detector between described adhesive tape feed mechanism and the described glue material fit body;

Step 2: aeolotropic conductive tape is provided, and described aeolotropic conductive tape comprises: release paper tape and be arranged on multistage glue material on the first surface of described release paper tape, and there is aberration in the first surface of described glue material and described release paper tape;

Step 3: use described adhesive tape feed mechanism to supply with described aeolotropic conductive tape to described separate-type paper recovering mechanism;

Step 4: use described aberration detector to detect the position of described glue material;

Step 5: when one section described glue material arrived described glue material fit body, described glue material fit body attached described one section glue material to target piece;

Step 6: use described separate-type paper to take back receipts mechanism and reclaim described release paper tape.

2. attaching method according to claim 1 is characterized in that described aberration detector judges the position of described glue material by the gap of finding two sections described glue materials.

3. attaching method according to claim 1 is characterized in that the length of one section described glue material greater than 20 millimeters, between adjacent two sections glue materials at a distance of 1 millimeter to 8 millimeters.

4. attaching method according to claim 1 is characterized in that described glue material is black.

5. attaching method according to claim 1, the first surface that it is characterized in that described release paper tape is black.

6. attaching method according to claim 1 is characterized in that comprising electrically conductive particles in the described glue material.

7. attaching method according to claim 1 is characterized in that described aberration detector comprises charge coupled device.

8. attaching method according to claim 1 is characterized in that described aberration detector is the Laser emission receiving device.

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