TWI625291B - Tape transmitting device and method for transmitting a tape - Google Patents

Abstract

A tape conveying device is used for conveying a tape. The tape includes a plurality of functional areas arranged along a first direction and two driving areas located on both sides of the functional area and extending along the first direction. The two driving areas Each includes two first conductive bars extending along a first direction. The belt conveying device includes a transmission unit, a track, a magnetic field supply module and a power supply module. The transmission unit is used to drive the belt. The track is located in the conveying path of the tape. The magnetic field supply module is disposed on the track. The power supply module is used to supply power to the two first conductive bars to control the current direction of the two first conductive bars. When the tape is transported to the track and the power supply module supplies power to the two first conductive bars, the tape is supplied by a magnetic field. The magnetic field provided by the module floats on the track. The invention further provides a method for conveying the belt.

Description

Tape conveying device and method

The present invention relates to a conveying device and a conveying method, and more particularly to a tape conveying device and a method for conveying a tape.

In recent years, chip packaging technology often uses tape-and-reel automatic bonding technology. The so-called tape-and-reel automatic bonding technology connects a wafer with a metal circuit provided on a flexible wafer carrier tape. Known tape and reel wafer packaging technology, such as Tape Carrier Package (TCP), Chip-On-Film Package (COF package), etc. Through this kind of strip-shaped wafer carrying belt, various wafers are carried, and it is convenient to store and transport. Compared with the traditional wire bonding technology, the advantages of the tape and tape automatic bonding technology are that it can reduce the metal pad spacing on the integrated circuit wafer, thereby increasing the density of circuit contacts, and through the Reel to Reel process method. Production efficiency can be greatly improved.

Generally, when a reel is supported by a transmission unit (for example, a conveying wheel) and transmitted on each work machine, it passes through a track for restricting the travel path of the reel. However, during the process of conveying the reel, the reel is liable to rub against the track and be scratched and damaged, and contamination of the working environment by foreign matter may occur.

The invention provides a tape conveying device, which is used for conveying the tape and can make the tape less prone to wear during the conveying process.

The invention provides a method for conveying a reel, which can reduce the probability of the abrasion of the reel during the conveying process.

A tape conveying device of the present invention is used for conveying a tape, wherein the tape includes a plurality of functional areas arranged along a first direction and two driving areas located on both sides of the plurality of functional areas and extending along the first direction. The two driving regions respectively include two first conductive bars extending along the first direction. The belt conveying device includes a transmission unit, a track, a magnetic field supply module and a power supply module. The transmission unit is used to drive the belt. The track is located in the conveying path of the reel, and is used to define the conveying path of the reel. The magnetic field supply module is disposed on the track. The power supply module is used to supply power to the two first conductive bars to control the current direction of the two first conductive bars. When the tape is transported to the track and the power supply module supplies power to the two first conductive bars, the tape is supplied by a magnetic field. The magnetic field provided by the module floats on the track.

The invention provides a method for conveying a tape, comprising: providing a tape conveying device, wherein the tape conveying device comprises a transmission unit, a track and a magnetic field supply module arranged on the track; placing the tape on the tape conveying device, wherein the The belt includes a plurality of functional areas arranged along a first direction and two driving areas located on both sides of the plurality of functional areas and extending along the first direction. The two driving areas respectively include two first areas extending along the first direction. A conductive strip; operating a transmission unit to drive the reel; and supplying power to two first conductive strips, the two first conductive strips being subjected to a magnetic field provided by a magnetic field supply module to float the reel on a track.

Based on the above, the present invention sets two first conductive bars in two driving areas of the tape, and the power supply module can supply power to the two first conductive bars, and the magnetic field supply module is arranged on the track, and the tape is transported to the track and When the power supply module supplies power to the two first conductive bars, the two driving areas of the tape are floated on the track by the magnetic field provided by the magnetic field supply module, so as to reduce the friction between the tape and the track. The magnetic field supply module can be two different magnetic poles arranged on the two side walls of the track, or it can be a conductive layer arranged on the bottom surface of the track, a projection superimposed on the two first conductive bars, and passing current, or a bottom surface of the track. 2. Project the two first conductive bars that overlap the two first conductive bars and pass current. The power supply module provides a specific direction of current to the two first conductive bars, so that the two first conductive bars are subjected to the magnetic field supply module. The magnetic field provided generates a magnetic force, and then moves away from the bottom surface of the track. The two first conductive bars move upwards to float the coiled tape together to reduce the chance of collision or friction between the coiled tape and the track. Damaged by scratches and foreign matter, thus preventing foreign matter from contaminating the working environment. The present invention also provides a method for conveying a reel, which uses the above method to reduce the probability of collision or friction between the reel and the track.

In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a tape conveying device 100 and a tape 200 according to an embodiment of the present invention. Referring to FIG. 1, the tape conveying device 100 of this embodiment is used for conveying the tape 200. The tape 200 may be a tape-and-reel chip package. As shown in FIG. 1, the tape 200 includes a plurality of functional regions 210 and two driving regions 220. These functional areas 210 are located in the center and are arranged along the first direction D1. A chip 212 may be disposed on each functional area 210. For the sake of brevity, the pins on the functional area 210 are hidden in Figure 1. In fact, there will be multiple pins on the functional area 210 connected to the chip 212. The solder layer is covered and only part of the pads are exposed (not shown). In subsequent processes, these functional areas 210 can be cut and separated from each other, and the chip 212 can be electrically connected to other electronic components through unillustrated pins.

The two driving regions 220 of the tape 200 are respectively located on two sides of the plurality of functional regions 210 and extend along the first direction D1. In this embodiment, the two driving regions 220 include two first conductive bars 221 extending along the first direction D1, respectively. FIG. 2 is a schematic partial cross-sectional view of the tape 200 of FIG. 1. Referring to FIG. 2, in this embodiment, each driving region 220 includes a base layer 223, a conductive layer 224 (ie, a first conductive bar 221) provided on the base layer 223, and an insulating layer 225 provided on the conductive layer 224. The material of the base layer 223 is, for example, polyimide, polyester resin (PET), or other suitable materials. The material of the conductive layer 224 is, for example, copper or other metals or alloys. The material of the insulating layer 225 is, for example, solder resist green paint, polyimide, or other suitable materials. In other embodiments, the driving region 220 may not have the insulating layer 225 disposed on the conductive layer 224, that is, the conductive layer 224 on the driving region 220 may be exposed. The designer can choose whether to cover the conductive layer 224 with the insulating layer 225 according to requirements.

Please return to FIG. 1, the tape conveying device 100 includes a transmission unit 105, a track 110, a magnetic field supply module 120 and a power supply module 130. The transmission unit 105 is used to drive the reel 200. The transmission unit 105 is, for example, a ratchet wheel or a roller, but the type of the transmission unit 105 is not limited, and the number and position of the transmission units 105 are not limited to the drawings. In this embodiment, two driving areas 220 of the reel 200 are provided with tooth holes 222, which can be used to engage with a transmission unit 105 such as a ratchet (not shown), so that the reel 200 can be driven by the transmission unit 105. drive.

The track 110 is located in the conveying path of the reel 200 and is used to define the conveying path of the reel 200. Generally, the track 110 is located on each operating machine (not shown) in the packaging process, and is mainly used to limit the travel path of the tape 200. As shown in FIG. 1, in this embodiment, the track 110 is inverted. That is, the track 110 includes two side walls 113 extending along the first direction D1 and a bottom surface 112 connected to the two side walls 113. Located between the two side walls 113 and above the bottom surface 112 of the track 110. In order to prevent the tape 200 from being damaged by friction with the bottom surface 112 of the track 110 during the conveying process, the tape conveying device 100 of this embodiment uses the magnetic field supply module 120 and the power supply module 130 to make the tape 200 may be slightly suspended above the track 110, thereby reducing the probability of the tape 200 rubbing against the bottom surface 112 of the track 110. This is described further below.

As shown in FIG. 1, the magnetic field supply module 120 is disposed on the rail 110. In this embodiment, the magnetic field supply module 120 includes two different magnetic poles 121 and 122, which are respectively located on two side walls 113 of the track 110. For example, the magnetic pole 121 is the N pole, and the magnetic pole 122 is the S pole. Therefore, the direction of the magnetic field between the two magnetic poles 121 and 122 is from the N pole to the S pole.

The power supply module 130 is used for supplying power to the two first conductive bars 221 to control the current direction of the two first conductive bars 221. When the tape 200 is to be slightly suspended on the bottom surface 112 of the track 110 during the process of conveying the tape 200 onto the track 110, the power supply module 130 can be supplied with power to the two first conductive bars 221, and the two first conductive bars 221 are passed in. The current direction may be opposite to the first direction D1. According to the right-hand opening rule, the current on the two first conductive bars 221 will generate an upward magnetic force after receiving the magnetic field from the N pole to the S pole. The operator only needs to adjust the amount of current flowing into the two first conductive bars 221. Then, magnetic forces of different sizes can be obtained. When the magnetic forces received by the two first conductive bars 221 are slightly greater than the gravity of the tape 200, the tape 200 can float on the bottom surface 112 of the track 110. The operator can first apply a large current to the two first conductive strips 221 to move the tape 200 upward, and then slightly reduce the current value through the two first conductive strips 221, so that the upward magnetic force and direction The force of gravity reaches equilibrium. In this way, the tape 200 can be spaced a short distance from the bottom surface 112 of the track 110 to avoid friction between the two.

This embodiment also provides a method for conveying the tape 200, which can be achieved by using the tape conveying device 100 shown in FIG. 1. The method for conveying the tape 200 includes the following steps: First, provide a tape such as that shown in FIG. 1. Conveying device 100 and tape 200. Next, the tape 200 is placed on the tape conveying device 100. Then, the transmission unit 105 is operated to drive the reel 200. Finally, power is supplied to the two first conductive bars 221, and the two first conductive bars 221 are subjected to the magnetic field provided by the magnetic field supply module 120 (for example, the two-phase different magnetic poles 121 and 122 in FIG. 1), so that the tape 200 floats on On track 110.

Of course, the type of the tape conveying device 100 is not limited to the above. The other types of tape conveying devices 100a, 100b, and 100c will be described below. In the following embodiments, only the main differences between different embodiments will be performed. It should be noted that the same or similar elements in the following embodiments as those in the foregoing embodiments are indicated by the same or similar symbols, and will not be described again.

3A is a schematic diagram of a tape conveying device 100a and a tape 200 according to another embodiment of the present invention. Please refer to FIG. 3A. The main difference between the tape conveyor device 100a of FIG. 3A and the tape conveyor device 100 of FIG. 1 is that in FIG. 3A, the magnetic field supply module 120a includes a conductive layer 123 extending along the first direction D1, The bottom surface 112 of the track 110 is arranged, and the projections of the two first conductive strips 221 on the bottom surface 112 overlap the conductive layer 123.

In this embodiment, since the length of the track 110 is much larger than the width, the conductive layer 123 can also be regarded as a long straight wire. Therefore, when the tape 200 is to be transported onto the track 110, it can be slightly suspended. When the bottom surface 112 of the track 110 is on, the two first conductive bars 221 and the conductive layer 123 can be respectively passed with reverse current. In this way, the first conductive strips 221 and the conductive layer 123 can be regarded as two wires with opposite current directions. According to the current magnetic effect, two parallel current-carrying wires have opposite magnetic forces between the reverse currents. The magnetic force in the direction away from the conductive layer 123 is caused to cause the tape 200 to float above the bottom surface 112 of the track 110. In this embodiment, the current flowing into the conductive layer 123 may be provided by the power supply module 130 (shown in FIG. 1) or other power supply modules not shown.

Therefore, if the operator conveys the tape 200 through the tape conveying device 100a of this embodiment, the difference from the previous embodiment is that in this embodiment, in the step of supplying power to the two first conductive bars 221, Including passing a current opposite to the two first conductive bars 221 to the conductive layer 123, the tape 200 can be floated above the bottom surface 112 of the track 110.

Of course, it should be noted here that although the current directions of the two first conductive bars 221 are the same in this embodiment, the designer can adjust the distance between the two first conductive bars 221 and the conductive layer 123, the two The distance between the first conductive strips 221, the material characteristics of the tape 200 itself, and the magnitude of the current flowing into the first conductive strips 221 and the conductive layer 123, respectively, make the first conductive strips 221 receive the magnetic field generated by the conductive layer 123. The influence of the formed magnetic force is much greater than that of the first conductive strip 221 by the magnetic force of another first conductive strip 221. That is, in this embodiment, the magnetic force generated by one of the first conductive strips 221 by the magnetic field of the other first conductive strip 221 is not enough to cause the tape 200 to flex perpendicularly to the first direction D1, so The reel 200 can still be suspended horizontally above the bottom surface 112 of the track 110.

It is worth mentioning that if the material of the track 110 is non-conductor, the conductive layer 123 can be arranged on the bottom surface 112 of the track 110 directly as shown in FIG. The conductive layer 123 is used to prevent persons or articles from touching the conductive layer 123. If the material of the track 110 is a conductor, the configuration of the conductive layer 123 on the bottom surface 112 of the track 110 can be referred to FIG. 3B. FIG. 3B is a bottom surface 112 of the track 110 of a tape conveying device according to another embodiment of the present invention. A schematic cross-sectional view of the conductive layer 123 and the insulating layer 125. Please refer to FIG. 3B. In this embodiment, the bottom surface 112 of the track 110 is made of metal. In order to prevent the conductive layer 123 of the magnetic field supply module 120a1 from directly contacting the bottom surface 112 of the track 110, the entire track 110 is energized. At least two upper and lower surfaces of 123 will cover the insulating layer 125, so that the bottom surface 112 of the track 110 and the conductive layer 123 are separated by the insulating layer 125. In this embodiment, as shown in FIG. 3B, the conductive layer 123 of the magnetic field supply module 120a1 is covered with the insulating layer 125 all around. The designer can adjust the position of the insulating layer 125 and the relative relationship with the conductive layer 123 according to needs. As long as the conductive layer 123 can be insulated from the track 110.

FIG. 4 is a schematic diagram of a tape conveying device 100b and a tape 200 according to another embodiment of the present invention. Please refer to FIG. 4. The main difference between the tape conveying device 100 b of FIG. 4 and the tape conveying device 100 a of FIG. 3A is that in FIG. 4, the magnetic field supply module 120 b includes two second conductive lines extending along the first direction D1. The strips 124 are disposed on the bottom surface 112 of the track 110 and correspond to two first conductive strips 221, respectively. Each of the second conductive strips 124 and the corresponding first conductive strips 221 is passed with a reverse current, thereby causing the tape 200 to float. Starting from the bottom surface 112 of the track 110.

That is, in this embodiment, the bottom surface 112 of the track 110 is not the entire conductive layer 123, but two second conductive bars 124 are provided at positions corresponding to the two first conductive bars 221. Similarly, in this embodiment, each of the second conductive strips 124 and the corresponding first conductive strips 221 are respectively passed with reverse currents. According to the current magnetic effect, two parallel current-carrying wires have magnetic phases between the reverse currents. Therefore, each of the first conductive strips 221 is subjected to a magnetic force in a direction away from the second conductive strips 124, and the reel 200 is floated above the bottom surface 112 of the rail 110 in conjunction.

Therefore, if the method for conveying the tape 200 by the operator through the tape conveying device 100b of this embodiment is different from the previous embodiment, in this embodiment, in the step of supplying power to the two first conductive bars 221, A current opposite to the corresponding first conductive strip 221 is passed to each of the second conductive strips 124 respectively. In this way, each of the first conductive strips 221 will receive a magnetic force in a direction away from the second conductive strips 124 and cause the tape 200 to float. Above the bottom surface 112 of the track 110.

It should be noted that although in FIG. 4, the current directions of the two first conductive bars 221 are the same, and the current directions of the two second conductive bars 124 are the same, since It may be disconnected, and the two second conductive bars 124 may be disconnected. Therefore, the directions of the currents passed by the two first conductive bars 221 may also be opposite, and the directions of the currents passed by the two second conductive bars 124 may also be opposite, as long as each of the second conductive bars 124 and the corresponding first It suffices that the conductive strip 221 is passed with a reverse current.

In addition, although in FIG. 4, the two second conductive strips 124 are directly disposed on the bottom surface 112 of the rail 110 as an example, the two second conductive strips 124 and the bottom surface 112 of the rail 110 may also be as shown in FIG. 3B. It is separated by the insulating layer 125.

FIG. 5 is a schematic diagram of a tape conveying device 100c and a tape 200 according to another embodiment of the present invention. Please refer to FIG. 5. The main difference between the tape conveying device 100 c in FIG. 5 and the tape conveying device 100 b in FIG. 4 is that in FIG. 5, the magnetic field supply module 120 c further includes a vertical extending direction D1 and connecting two first The two conductive strips 124 communicate with the conductive strips 126, and the communication conductive strips 126 are disposed on the bottom surface 112 of the rail 110. That is, in this embodiment, the magnetic field supply module 120c includes a ㄇ -type conductive strip composed of two second conductive strips 124 and a communication conductive strip 126.

Due to the communication between the two second conductive strips 124 and the communication conductive strips 126, a current will be transmitted from one of the second conductive strips 124 to the other second conductive strip 124 through the communication conductive strips 126, so that the two second conductive strips 124 The direction of the current will be reversed. Therefore, when the tape 200 is to be slightly suspended on the bottom surface 112 of the track 110 during the process of conveying the tape 200 onto the track 110, the power supply module 130 should pass reverse current to the two first conductive bars 221, and each The direction of current flowing through a conductive strip 221 and the direction of current flowing through a corresponding second conductive strip 124 are also opposite. In this way, the reel 200 can float above the bottom surface 112 of the rail 110.

Similarly, although in FIG. 5, the two second conductive bars 124 and the communication conductive bars 126 are directly disposed on the bottom surface 112 of the track 110 as an example, the two second conductive bars 124 and the bottom surface 112 of the track 110 are in communication with each other. The conductive strip 126 and the bottom surface 112 of the track 110 may also be separated by an insulating layer 125 as shown in FIG. 3B.

To sum up, the present invention provides two first conductive bars in two driving areas of the tape, and the power supply module can supply power to the two first conductive bars, and the magnetic field supply module is arranged on the track, and the tape is transported to the track. When the power supply module supplies power to the two first conductive bars, the two driving areas of the tape are floated on the track by the magnetic field provided by the magnetic field supply module, so as to reduce the friction between the tape and the track. The magnetic field supply module can be two different magnetic poles arranged on the two side walls of the track, or it can be a conductive layer arranged on the bottom surface of the track, a projection superimposed on the two first conductive bars, and passing current, or a bottom surface of the track. 2. Project the two first conductive bars that overlap the two first conductive bars and pass current. The power supply module provides a specific direction of current to the two first conductive bars, so that the two first conductive bars are subjected to the magnetic field supply module. The magnetic field provided generates a magnetic force, and then moves away from the bottom surface of the track. The two first conductive bars move upwards to float the coiled tape together to reduce the chance of collision or friction between the coiled tape and the track. Damaged by scratches and foreign matter, thus preventing foreign matter from contaminating the working environment. The present invention also provides a method for conveying a reel, which uses the above method to reduce the probability of collision or friction between the reel and the track.

Although the present invention has been disclosed as above with the examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some modifications and retouching without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the attached patent application.

D1‧‧‧ first direction
100, 100a, 100b, 100c‧‧‧‧belt conveyor
105‧‧‧Drive unit
110‧‧‧ track
112‧‧‧ underside
113‧‧‧ sidewall
120, 120a, 120a1, 120b, 120c‧‧‧ Magnetic field supply module
121, 122‧‧‧ magnetic poles
123‧‧‧ conductive layer
124‧‧‧Second conductive strip
125‧‧‧ Insulation
126‧‧‧Connecting conductive strip
130‧‧‧Power supply module
200‧‧‧Tape
210‧‧‧ Functional Area
212‧‧‧Chip
220‧‧‧ drive zone
221‧‧‧The first conductive strip
222‧‧‧perforation
223‧‧‧ basal layer
224‧‧‧ conductive layer
225‧‧‧ Insulation

FIG. 1 is a schematic diagram of a tape conveying device and a tape according to an embodiment of the present invention. FIG. 2 is a schematic partial cross-sectional view of the tape of FIG. 1. 3A is a schematic diagram of a tape conveying device and a tape according to another embodiment of the present invention. 3B is a schematic diagram of a bottom surface, a conductive layer and an insulating layer of a tape conveying device according to another embodiment of the present invention. 4 is a schematic diagram of a tape conveying device and a tape according to another embodiment of the present invention. 5 is a schematic diagram of a tape conveying device and a tape according to another embodiment of the present invention.

Claims (12)

A tape conveying device is used for conveying a tape, wherein the tape includes a plurality of functional areas arranged along a first direction and two functional areas located on both sides of the plurality of functional areas and extending along the first direction. A strip driving area, the two driving areas respectively including two first conductive strips extending along the first direction, and the tape conveying device includes: a transmission unit for driving the tape; The transport path of the tape is used to define the transport path of the tape; the magnetic field supply module is arranged on the track; and the power supply module is used to supply power to the two first conductive bars to control the The current direction of the two first conductive bars, wherein when the tape is transported to the track and the power supply module supplies power to the two first conductive bars, the tape is subjected to the magnetic field supply module The provided magnetic field floats on the orbit. The tape conveying device according to item 1 of the patent application scope, wherein the track includes two side walls and a bottom surface extending along the first direction, and the tape is located between the two side walls. The tape conveying device according to item 2 of the scope of patent application, wherein the magnetic field supply module includes two different magnetic poles respectively located on the two side walls of the track. The tape conveying device according to item 2 of the patent application scope, wherein the magnetic field supply module includes a conductive layer extending along the first direction, and is disposed on the bottom surface of the track, and the two first The projection of the conductive strip on the bottom surface overlaps the conductive layer, and the two first conductive strips and the conductive layer are respectively passed with a reverse current, so that the tape is floated on the track. Above the bottom. The tape conveying device according to item 2 of the scope of patent application, wherein the magnetic field supply module includes two second conductive strips extending along the first direction, which are arranged on the bottom surface of the track and are respectively Corresponding to the two first conductive strips, each of the second conductive strips and the corresponding first conductive strip are respectively passed with a reverse current, so that the tape is floated on the bottom surface of the track Up. The tape conveying device according to item 5 of the scope of patent application, wherein the magnetic field supply module further includes a connecting conductive bar extending perpendicular to the first direction and connecting the two second conductive bars, and the connecting conductive A strip is arranged on the bottom surface of the track. A method for transporting a reel includes: providing a reel transport device, wherein the reel transport device includes a transmission unit, a track, and a magnetic field supply module configured on the track; placing a reel on the reel transport device Wherein the reel includes a plurality of functional areas arranged along a first direction and two driving areas located on both sides of the plurality of functional areas and extending along the first direction, the two driving areas being respectively Comprising two first conductive bars extending along the first direction; operating the transmission unit to drive the tape; and supplying power to the two first conductive bars, the two first conductive bars being subjected to the magnetic field The magnetic field provided by the supply module causes the tape to float on the track. According to the method of claim 7, the track includes two side walls and a bottom surface extending along the first direction, and the tape is located between the two side walls. According to the method of claim 8, wherein the magnetic field supply module includes two different magnetic poles, which are respectively located on the two side walls of the track. The method for conveying a tape according to item 8 of the scope of patent application, wherein the magnetic field supply module includes a conductive layer extending along the first direction, and is disposed on the bottom surface of the track, and the two second The projection of a conductive bar on the bottom surface overlaps the conductive layer. In the step of supplying power to the two first conductive bars, the method further includes: passing a current opposite to the two first conductive bars to the conductive layer. Layer, so that the reel is floated above the bottom surface of the track. The method for conveying a reel according to item 8 of the scope of patent application, wherein the magnetic field supply module includes two second conductive strips extending along the first direction, and is disposed on the bottom surface of the track and Respectively corresponding to the two first conductive bars, and in the step of supplying power to the two first conductive bars, the method further includes: passing currents corresponding to the corresponding two first conductive bars to the two first conductive bars, respectively; Two conductive strips, so that the coiled tape floats above the bottom surface of the track. The method for conveying a tape according to item 11 of the scope of patent application, wherein the magnetic field supply module further includes a communication conductive strip extending perpendicular to the first direction and connecting the two second conductive strips, and the communication A conductive strip is disposed on the bottom surface of the track.