JP2001168064A - Member for pushing up pellet and apparatus for picking up pellet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry a pellet up to a pellet pickup table without separating and to pick up the pellet surely under a state where adhesion of an adhesive tape is lowered at the time of picking up a split pellet, e.g. a CSP pellet, attached to the adhesive tape. SOLUTION: The member 10 for pushing up a pellet P attached to the surface of an adhesive tape T from the rear side is provided with means 11 for lowering adhesion of the adhesive tape T in order to push up the pellet P while lowering adhesion of the adhesive tape T. The apparatus for picking up a pellet comprises a pellet pickup table equipped with such a pellet pickup member 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pellet push-up member which pushes up a pellet from the back side when a pellet stuck on the surface of an adhesive tape is peeled and picked up, and a pellet push-up member provided therewith. Related to a pellet pickup device.

[0002]

2. Description of the Related Art For example, when a CSP substrate C is divided into individual CSP pellets using a pellet pickup device 60 shown in FIG. By adhering the undivided CSP substrate C to the attached adhesive tape T, C
A plurality of SP substrates C are housed in the cassette 31 in a state of being integrated with the frame F via the adhesive tape T.

[0003] The CSP boards C integrated with the frame F are taken out of the cassette 31 one by one and placed on the temporary receiving area 33, and then held by the first carrying means 34. Conveyed and held. Then, after the holding table 35 moves in the + X direction and a cutting line is detected immediately below the alignment means 36, the holding table 35 further moves in the same direction, so that the cutting means provided with the rotating blade 37 rotating at high speed. Under the action of 38, the detected cutting line is cut. By moving the holding table 35 back and forth in the X-axis direction while moving the cutting means 38 in the + Y direction by a predetermined distance, all the cutting lines in the same direction are cut. Further, by rotating the holding table 35 by 90 degrees and performing the same cutting as described above, all the cutting lines are cut vertically and horizontally and divided into individual pellets.

The individual pellets thus formed are transported to the cleaning area 40 by the second transport means 39 while being adhered to the adhesive tape T, where they are cleaned and dried. The sheet is conveyed to the temporary receiving area 33 by the third conveying means 41. Note that, in the present embodiment, the first transport unit 34 also serves as the third transport unit 41.

[0005] As shown in FIG. 5 and FIG.
In the rear area 42 provided on the rear side of No. 3, an adhesive force reducing means is provided. When the adhesive tape T is an ultraviolet curable tape whose adhesive force is reduced by being irradiated with ultraviolet rays, the adhesive force reducing means is an ultraviolet irradiating section 42a as shown in the figure. Alternatively, when a type of tape whose adhesive strength is reduced by cooling is used, the tape becomes a heating unit or a cooling unit.

When the CSP substrate C after being divided into pellets is placed on the temporary receiving area 33, the suction portion 43a constituting the fourth transfer means 43 shown in FIG.
, And in this state, the holding portion 43b is guided by the rail 43c and moves in the -Y direction. And the divided C
When the SP substrate C is positioned immediately above the ultraviolet irradiation unit 42a, the suction unit 43a is lowered, and is released on the ultraviolet irradiation unit 42a by releasing the suction force, thereby receiving the ultraviolet irradiation. The adhesive strength of the adhesive tape T decreases.

The CPS substrate C after division, which is adhered to the adhesive tape T having reduced adhesive strength,
4 transports to the temporary storage table 45. In the fifth transport means 44, the holding portion 44b is movable in the X-axis direction along a guide rail 44a provided in the X-axis direction, and the holding portion 44b sucks the frame F at the tip suction portion 44c. Is moved in the −X direction, and the suction unit 44c is lowered directly above the temporary placing table 45 to release the suction force, and thus the divided C integrated with the frame F is separated.
The SP substrate C is placed on the temporary placing table 45.

When the divided CSP board C is placed on the temporary placing table 45 in this way, the sixth transport means 46
Thereby, it is transported to the pellet pickup table 47. Here, in the sixth transport means 46, the holding portion 46b is movable in the Y-axis direction along the guide groove 46a provided in the Y-axis direction, and the holding portion 46b is held while holding the end of the frame F. By moving in the + Y direction, the divided CSP substrate C integrated with the frame F is placed on the pellet pickup table 47.

The table 47 for pellet pick-up
As shown in FIG. 7, the cylindrical mounting portion 47a and the frame F
And a clamp portion 47b for fixing the pellet push-up member 47c slidable in the X-axis direction and capable of moving back and forth in the Z-axis direction. Has been established.

When picking up the pellets, the CSP substrate C divided into individual pellets is placed on the placing portion 47a, the frame F is fixed to the clamp portion 47b, and the placing portion 47a and the clamp portion 47b While moving in the axial direction, the pellet push-up member 47c moves in the X-axis direction, further advances and retreats in the Z-axis direction, and pushes up the individual pellets P upward.

The pellet P thus pushed up and easily separated from the adhesive tape T is transferred to the first pickup section 48a constituting the transfer means 48 shown in FIG.
And the first pickup unit 48a is
After being moved in the direction and being positioned at a predetermined position, the suction is released, and then the device is placed on the centering means 49.

Then, the pellet P is positioned at a predetermined position and then picked up by the second pickup unit 48b. The second pickup unit 48b moves in the -X direction and is positioned at a predetermined position. After the suction is released, the pellets P are transferred to the transfer tray 50.
To be housed. Thus, the pellets are transferred to the transfer tray 5.
When the container is stored at 0, the transport tray 50 is filled with pellets.

[0013]

However, in order to pick up the pellets in the pellet pick-up table 47, if the rear area 42 is sufficiently irradiated with ultraviolet rays to sufficiently reduce the adhesive force of the adhesive tape T, the pellets are not satisfactorily produced. The pellets P may be detached from the adhesive tape T in a process before being transported to the pickup table 47.

On the other hand, when the irradiation of the ultraviolet rays is not sufficiently performed to avoid the detachment of the pellets P during the transportation process,
Since the adhesive strength is not sufficiently reduced, the pickup is hindered.

When the pressure-sensitive adhesive tape is of a type whose adhesive strength is reduced by heating or cooling, it is necessary to lower the adhesive strength by heating or cooling the adhesive tape in the rear region 42. Even if heating or cooling is performed sufficiently, the temperature of the pressure-sensitive adhesive tape may approach the outside temperature in the transporting process, and the pressure-sensitive adhesive strength may return to its original level. In this case, the pickup may be particularly troublesome.

As described above, when picking up the divided pellets, it is necessary to transport the pellets to the pellet pick-up table without detaching them, and to reliably pick up the pellets in a state where the adhesive force is reduced. Has issues.

[0017]

Means for Solving the Problems As a specific means for solving the above-mentioned problems, the present invention relates to a pellet push-up member for pushing up a pellet adhered to the surface of an adhesive tape from the back side of the adhesive tape. Provided is a pellet push-up member provided with an adhesive force reducing means for reducing the adhesive force of a tape.

The pellet pushing-up member is an ultraviolet-curing adhesive tape whose adhesive force is reduced by irradiation of the adhesive tape with ultraviolet rays, the adhesive force reducing means is an ultraviolet irradiation section, and the adhesive tape is heated by heating. Adhesive strength is a heat-curable pressure-sensitive adhesive tape, the adhesive force-lowering means is a heating section, the adhesive tape is a cooling-curable adhesive tape whose adhesive force is reduced by cooling, the adhesive force-lowering means is a cooling section In some cases, the adhesive force reducing means is constituted by a thermo module, and the thermo module has an additional requirement that the thermo module also serves as a heating unit and a cooling unit.

Since the pellet lifting member thus configured is provided with an adhesive force reducing means, it is possible to reduce the adhesive force of the adhesive tape adhered to the pellet simultaneously with the lifting of the pellet. The pellet can be held firmly until immediately before the pickup.

If the pressure-sensitive adhesive tape is of a type that is cured by heating or cooling, the pressure-sensitive adhesive tape approaches the outside temperature in the transportation process up to the pick-up step, so that the pressure-sensitive adhesive returns to its original strength, which hinders pickup. Will not occur.

Further, according to the present invention, when individually picking up CSP pellets constituting a divided CSP substrate,
A pellet pick-up table on which the SP substrate is mounted, and a CS mounted on the pellet pick-up table
Transfer means for individually separating the CSP pellets constituting the P substrate from the adhesive tape and storing the CSP pellets in the transport tray; and a stored tray storage unit for storing the transport tray filled with the CSP pellets stored by the transfer means. And an empty tray storage unit for storing an empty transport tray, and a pellet pickup table provided with the above-mentioned pellet push-up member on a pellet pickup table.

In the pellet pickup device configured as described above, the transfer of the CSP pellets to the transport tray can be performed reliably and smoothly.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A pellet lifting member according to the present invention and a pellet pickup device provided with the same will be described. Since the pellet pickup device of the present invention and the conventional pellet pickup device 60 shown in FIG. 5 are different only in the configuration of the pellet lifting member,
The same reference numerals are given to the components configured in the same manner, and the description of the items already described in the related art will be omitted.

FIG. 1 shows an embodiment of a pellet lifting member according to the present invention.
Reference numeral 0 denotes a pellet pick-up table 20, which is generally composed of a cylindrical mounting portion 21 and a clamp portion 22 for fixing the frame F, and is disposed inside the mounting portion 21 and has an X-axis direction and a Y-direction. Slidable in the axial direction and Z
It is possible to advance and retreat in the direction.

In the portion of the pellet lifting member 10 which comes into contact with the adhesive tape T, an adhesive force reducing means 11 is provided. When the pressure-sensitive adhesive tape T is a UV-curable pressure-sensitive adhesive tape, the pressure-reducing means 11 is, for example, an ultraviolet irradiation unit 11a having a configuration as shown in FIG.

The ultraviolet irradiating section 11a shown in FIG. 2 has a number of optical fibers 12 arranged vertically and is connected to an ultraviolet light source which emits ultraviolet rays at a lower portion although not shown. Then, the ultraviolet light emitted from the ultraviolet light source is irradiated from the optical fiber 12 toward the upper adhesive tape T.

The adhesive force reducing means 11 is a heating unit when the adhesive tape T is a heat-curable adhesive tape,
In the case of a cooling-curable adhesive tape, it is a cooling section. In these cases, by using, for example, a thermo module 11b shown in FIG. 3 as the adhesive force reducing means 11, it is possible to have both a function as a heating unit and a function as a cooling unit.

The thermo module 11b includes a plurality of P
The type semiconductor and the N-type semiconductor are sandwiched between the upper plate 13 and the lower plate 14 such that they are electrically connected in series alternately. When a current flows through this circuit, the upper plate 13 or the lower plate One of the plates 14 generates heat and the other absorbs heat. Therefore, depending on the direction in which the current flows, the upper plate 13 and the lower plate 14 serve as both a heating unit and a cooling unit.

As shown in FIG. 3, the thermo module 11b may be provided with a push-up portion 15 which can move up and down in the vertical direction. In this case, the pellet can be more effectively picked up. The push-up portion 15
Can also be arranged in the ultraviolet irradiation section 11a shown in FIG.

The pellet lifting member 1 constructed as described above
The pellet pick-up table 20 on which 1 is disposed is
For example, it is provided in a pellet pickup device 30 shown in FIG. Here, the pellet pickup device 30
, The CSP substrate C integrated with the frame F is cut through an ultraviolet curing
The case of dividing into P pellets and storing them in a transport tray will be described.

The pellet pickup device 30 shown in FIG.
In the above, the division of the CSP substrate C and the cleaning of the CSP substrate C after the division are performed in the same manner as in the prior art, but since the pellet pushing-up member 10 is provided with the adhesive force reducing means 11, It is not necessary to have.

However, as shown in FIG.
If the adhesive force reducing means (in this case, the ultraviolet irradiator 42a) is provided, if the adhesive force is slightly reduced here, the pellets will not be detached during the transportation and the pellet pickup In the table 20, the irradiation time of the ultraviolet rays can be reduced, and the productivity can be improved.

The divided CSP substrate C after cleaning is transferred to the temporary placing table 45 by the fifth transfer means 44, and then transferred to the pellet pickup table 20 by the sixth transfer means 46.

The pellet pickup table 20
As a whole, it is configured to be movable in the X-axis direction and the Y-axis direction. When picking up the CSP pellet P, the pellet pickup table 20 moves in the X-axis direction or the Y-axis direction to try to pick up at an appropriate position. C
SP pellets P can be positioned.

The pellet pickup table 20
In the vicinity of the X direction, a center aligning means 49 for aligning the center of the CSP pellet P is provided, and by aligning the CSP pellet placed thereon to a predetermined position, the transfer tray 50 is adjusted. The pellets can be reliably stored in the container.

In the vicinity of the centering means 49 in the -X direction, a transport tray 50 for containing CSP pellets is provided.
Is mounted on the transfer tray mounting table 51 on which the table is mounted. The transport tray mounting table 51 is arranged in the X-axis direction,
It is movable in the Y-axis direction and the Z-axis direction, and can descend and pass through the inside of the apparatus to enter the empty tray storage section 52 or the stored tray storage section 53.

Further, a pellet pickup table 2
A transfer means 48 is provided from above 0 to above the transport tray mounting table 51. The transfer means 48 includes a bridge portion 48c extending in the X-axis direction, a first pickup portion 48a movable in the X-axis direction along the bridge portion 48c, and vertically movable in the Z-axis direction. The first pickup unit 48a can adsorb the individual CSP pellets P from the divided CSP substrate C placed on the pellet pickup table 20. Further, the second pickup unit 48b can adsorb the CSP pellet P in the centering unit 49.

The pellet pickup table 20
It is configured as shown in FIG.
Is substantially the same as the structure shown in FIG. 7 except that. C divided into individual CSP pellets P
When the SP substrate C is mounted on the mounting portion 21 and the frame F is fixed by the clamp portion 22, the mounting portion 21 and the clamp portion 22 move in the Y-axis direction while the lifting member 10 moves in the X-axis direction. Each of the pellets P is pushed up while moving forward and backward in the Z-axis direction.

Here, since the adhesive force reducing means 11 is formed at the upper end of the pellet lifting member P, the adhesive force of the adhesive tape T can be reduced at the same time as the pellet P is pushed up. Therefore, the subsequent transfer of the CSP pellets to the transfer tray can be performed reliably and smoothly, and the productivity is improved.

For example, when the pressure-sensitive adhesive tape T is a UV-curable pressure-sensitive adhesive tape and the pressure-reducing means 11 is the UV irradiating section 11a shown in FIG. 2, the pellet push-up member 10 rises to push up the CSP pellet P. While the adhesive tape T is irradiated with ultraviolet rays from the optical fiber 12, the adhesive force of the adhesive tape T is reduced, and the adhesive tape T is easily picked up.

As described above, since the adhesive force reducing means 11 is provided on the pellet lifting member 10, the adhesive force of the adhesive tape T adhered to the CSP pellet P is reduced simultaneously with the lifting of the CSP pellet P. be able to. Therefore,
Since the CSP pellet P can be firmly held until immediately before the pickup of the CSP pellet P, the CSP pellet P does not come off from the adhesive tape T during the transportation so far.
Breakage of the SP pellet P can be prevented.

If the pressure-sensitive adhesive tape T is of a type which is cured by heating or cooling, the pressure-sensitive adhesive tape T approaches the outside temperature in the transport process up to the pick-up step, and the adhesive force returns to the original level. In some cases, the pickup may be hindered. However, by reducing the adhesive force of the adhesive tape T immediately before the pickup, such a problem does not occur, and the pickup can be reliably performed. become.

In this way, the pellet lifting member 10
When the SP pellet P is pushed up and the adhesive force of the adhesive tape T is weakened, the first pickup portion 48a constituting the transfer means 48 moves above the pellet P, descends, adsorbs the pellet, and rises. .

Then, in this state, the first pickup unit 4
8a moves in the −X direction to a position directly above the centering means 49, and the first pickup unit 48a descends to release the suction, thereby allowing the centering means 49 to receive a CS signal.
The P pellet P is placed. Here, the CSP pellet P is positioned at a fixed position by pressing the pellet from all sides.

When the CSP pellet P is aligned in this manner, the second pickup unit 48b moves directly above the CSP pellet P, descends to adsorb the CSP pellet P, and then moves upward in the -X direction. It moves and is positioned immediately above the transport tray mounting table 51. Then, the second pickup unit 48b descends, and the transport tray 50
The pellet P is stored at a predetermined position.

When the above operation is repeated for all the pellets, the CSP pellets P are filled in the transport tray 50. Then, the transport tray 50 filled with the CSP pellets P is stored in the stored tray storage unit 53 by moving the transport tray mounting table 51 in the X-axis direction, the Y-axis direction, and the Z-axis direction.

On the other hand, the adhesive tape T and the frame F remaining on the pellet pickup table 20 after all the CSP pellets P have been picked up are transferred to the sixth transport means 4.
6 is stored in the frame collection unit 54.

When the CSP pellets P are transferred to the transport tray 50 by using the transfer means 48, the first pick-up unit 48a and the second pick-up unit 48b are operated in parallel for pick-up. The transfer can be performed more efficiently.

[0049]

As described above, since the pellet lifting member according to the present invention is provided with the adhesive force reducing means, the adhesive force of the adhesive tape attached to the pellet is reduced simultaneously with the pushing of the pellet. Can be done. Therefore, the pellets can be firmly held until immediately before the pick-up of the pellets, so that the pellets are not detached from the adhesive tape during the transportation so far, and the pellets can be prevented from being damaged.

When the pressure-sensitive adhesive tape is of a type that is cured by heating or cooling, the pressure-sensitive adhesive tape approaches the outside temperature in the transportation process up to the pick-up process, and the pressure-sensitive adhesive returns to its original strength. Since this does not occur, the pickup can be reliably performed.

Further, in the pellet pick-up device according to the present invention, since the pellet pick-up member provided with the adhesive force reducing means is disposed on the pellet pick-up table, the transfer of the CSP pellets to the transport tray can be performed reliably and reliably. It can be performed smoothly, and productivity is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of a pellet lifting member according to the present invention.

FIG. 2 is a perspective view showing a first example of an adhesive force reducing means constituting the pellet pushing-up member.

FIG. 3 is a perspective view showing a second example of the adhesive force reducing means constituting the pellet lifting member.

FIG. 4 is a perspective view showing an example of an embodiment of a pellet pickup device according to the present invention.

FIG. 5 is a perspective view showing a conventional pellet pickup device.

FIG. 6 is a perspective view showing a fourth conveying means constituting the pellet pickup device.

FIG. 7 is a perspective view showing a conventional pellet lifting member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Pellet lifting member 11 ... Adhesion reduction means 11a ... Ultraviolet irradiation part 11b ... Thermo module 12 ... Optical fiber 13 ... Upper plate 14 ... Lower plate 15 ... Push-up part 20 ... Pellet pick-up table 21 ... Placement part 22 ... Clamp part Reference Signs List 30 Pellet pickup device 31 Cassette 32 Unloading means 33 Temporary receiving area 34 First transport means 35 Holding table 36 Alignment means 37 Rotating blade 38 Cutting means 39 Second transport means 40 Cleaning Area 41: Third conveying means 42: Rear area 42a: Ultraviolet irradiation part 43: Fourth conveying means 43a: Adsorbing part 43b: Holding part 43c: Rail 44: Fifth conveying means 45: Temporary placing table 46: No. Sixth conveyance means 46a: guide groove 46b: holding part 47: pellet pickup table Le 47a ... Placement part 47b ... Clamp part 47c ... Pellet lifting member 48 ... Transfer means 48a ... First pickup part 48b ... Second pickup part 48c ... Bridge part 49 ... Center alignment means 50 ... Transport tray 51 ... Transport Tray mounting table 52: Empty tray storage unit 53: Stored tray storage unit 54: Frame recovery unit 60: Pellet pickup device

Claims (6)

[Claims] 1. A pellet push-up member that pushes up a pellet adhered to the surface of an adhesive tape from the back side of the adhesive tape, wherein the pellet push-up member has a reduced adhesive strength that reduces the adhesive strength of the adhesive tape. A pellet lifting member provided with a means. 2. The pellet lifting member according to claim 1, wherein the pressure-sensitive adhesive tape is an ultraviolet-curable pressure-sensitive adhesive tape whose adhesive strength is reduced by being irradiated with ultraviolet rays, and wherein the means for lowering the adhesive strength is an ultraviolet irradiation section. 3. The pellet lifting member according to claim 1, wherein the pressure-sensitive adhesive tape is a heat-curable pressure-sensitive adhesive tape whose pressure-sensitive adhesive force is reduced by heating, and wherein the pressure-sensitive adhesive-reducing means is a heating unit. 4. The pellet lifting member according to claim 1, wherein the pressure-sensitive adhesive tape is a cooling-curable pressure-sensitive adhesive tape whose adhesive force is reduced by cooling, and the adhesive force reducing means is a cooling unit. 5. The push-up member according to claim 3, wherein the adhesive force reducing means is constituted by a thermo module, and the thermo module also serves as a heating unit and a cooling unit. 6. A CSP constituting a divided CSP substrate
A pellet pick-up table on which the CSP substrate is placed when individually picking up the pellets, and a CSP pellet constituting the CSP substrate placed on the pellet pick-up table, which is individually peeled off from the adhesive tape to a transfer tray. And a storage unit for storing a transport tray filled with the CSP pellets stored by the transfer unit, and an empty tray storage unit for storing an empty transport tray. A pellet pickup device, comprising: a pellet pick-up member according to any one of claims 1 to 5 disposed on the pellet pickup table.