TWI485094B - Packing structure of dicing die bonding film and packing method - Google Patents

Description

Bundling structure and packing method for cutting die film

The present invention relates to a packing structure of a die-bonding film for dicing used in the manufacture of a semiconductor device and a packaging method therefor.

Conventionally, a die dicing bonding film has been developed which has both functions of a dicing tape and a die bonding film, and the dicing tape is used to cut a semiconductor wafer. The semiconductor wafer is fixed when being separated into individual wafers for bonding the cut semiconductor wafer to a lead frame or a package substrate or the like. Such a die-cut film for cutting is usually subjected to pre-cut processing.

Fig. 8 is a view showing a film 100 as an example of a die-cut film for dicing, Fig. 8(a) is a front view, and Fig. 8(b) is a cross-sectional view taken along line D-D of Fig. 8(a). The film 100 is composed of a release film 103, an adhesive layer 105, and an adhesive film 107 composed of a circular label portion 107a and a peripheral portion 107b.

The subsequent layer 105 is processed into a circular shape corresponding to the shape of the wafer, and is disposed on the release film 103. The adhesive film 107 is removed from the peripheral region of the circular portion corresponding to the shape of the dicing joint frame. The circular label portion 107a of the adhesive film 107 covers the adhesive layer 105, and the outer peripheral portion is in contact with the release film 103.

As shown in FIG. 8(b), the portion where the adhesive layer 105 and the circular label portion 107a are laminated is thicker than the peripheral portion 107b of the adhesive film 107. Therefore, when rolled into a roll shape as a product, the step of the adhesive layer 105 and the laminated portion of the circular label portion 107a and the peripheral portion 107b are superimposed, and the step is transferred to the soft one. Next to the surface of the agent layer 105. If such a transfer mark is generated, there is a wafer addition due to the adhesion of the adhesive layer 105 and the semiconductor wafer. There is a problem with working conditions.

On the other hand, in order to suppress the generation of such a transfer mark, there is a method of weakening the winding force of the tape. However, this method causes the winding of the product to be irregular due to the vibration during transportation.

In response to this, a method of working in a pre-cut shape has been studied to prevent such label marks (for example, Patent Document 1).

Advanced Technology Literature Patent Literature

Patent Document 1 Japanese Patent Laid-Open Publication No. 2007-2173

However, as in the method of the patent document 1 in the pre-cut shape, in addition to the difficulty in shape adjustment, once the film winding tension is increased, the occurrence of label marks cannot be prevented. Therefore, the winding tension must be adjusted. Further, in the conventional packaging method, when the coil is conveyed, there is a possibility that the product is damaged by applying force to a part of the product or slipping the product.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a packaging structure for a dicing die film for dicing which is excellent in suppressing winding defects and excellent in handleability, and a packaging method therefor.

In order to achieve the above-described first aspect of the invention, there is provided a packaging structure for a die-bonding film for dicing, characterized in that it comprises a hollow core and an elongated cut which is wound into the core and pre-cut into a predetermined shape. a roller formed of a die-bonding film; a side plate having a convex portion corresponding to the hollow portion of the core; and two or four straps fixing the roller and the side plate; and the convex portion is mounted to be fitted to the foregoing At both ends of the core, at least two of the aforementioned straps are tied to the foregoing The amount of change in the distance between the side plates when the side plates of the pair of the side plates are placed in a state in which the side plates are placed in the vertical direction and the upper side plates are lifted upward, before the side plates are lifted The distance between the side plates is 1% or less.

The side plate and the roller fixed by the strap may be arranged in two or more rows and housed in the packing box.

A recess is provided on an opposite side surface of the convex portion of the side plate, and at least two of the bundles may intersect at the recess. At least two of the aforementioned straps may be fixed to each other at the intersection.

According to the first aspect of the invention, since the roller is sandwiched by the pair of side plates, the film is conveyed at a medium level, and winding is not caused. Further, since the side plates and the roller system are fixed so that at least two of the straps are crossed, the side plate offset does not occur. Further, by setting the amount of change in the distance between the side plates during the treatment to 1% or less, the film can be reliably prevented from being wound at the time of processing.

In addition, the stacking property of the packing box is also excellent in that two or more rolls are accommodated in a packing box in parallel. Further, a concave portion is formed on the outer surface of the side plate so that the band can be easily caught by the manner in which the band is crossed by the concave portion, and the handling work such as taking out the roller from the packing box is excellent. Moreover, the offset of the strap can be prevented by fixing the intersection of the straps.

According to a second aspect of the invention, there is provided a method for packaging a die-bonding film for dicing, characterized in that an elongated die-cut film for pre-cutting into a predetermined shape is wound around a hollow core to form a roll, which has a corresponding core a pair of side plates of the convex portion of the hollow portion are attached to the roller so that the convex portion is fitted to both ends of the core, and the roller and the aforementioned roller are fixed in a manner that two to four straps intersect each other The side plate is such that the side plates of the pair are placed in the up-and-down direction, and the side of the upper side plate is lifted upward. The amount of change in the distance between the plates is 1% or less of the distance between the side plates before lifting the side plates.

After the straps are attached, at least two of the straps may be fixed to each other at the intersection.

According to the second aspect of the invention, it is possible to reliably prevent the film from being wound out, and it is also excellent in handleability, and it is possible to prevent the occurrence of transfer marks.

According to the present invention, it is possible to provide a packing structure for a dicing die film for dicing which is excellent in suppressing winding defects and excellent in handleability, and a packing method therefor.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is an exploded perspective view showing the packing structure 1, and FIG. 2 is a perspective view showing the packing structure 1. The packing structure 1 is mainly composed of a roller 5, a side plate 3, a storage bag 11, a strap 15, a packing box 13, and the like.

The roll 5 is formed by attaching the film 9 to the hollow core 7. Further, the film 9 is substantially the same as the film 100 shown in Fig. 7, and a film for dicing for embossing is formed on the surface.

The winding tension of the film 9 to the core 7 is preferably, for example, about 10 N to 20 N. When the winding tension of the film 9 exceeds 20 N, a transfer mark in accordance with the above-described uneven shape is generated. Further, when the winding tension of the film 9 is less than 10 N, the film 9 may be unwound or the like. Further, although the details are described later, the winding tension of the film is usually set to about 15 N in consideration of the winding irregularity. However, the present invention is applied to a lower packing capacity of about 8 N by adopting a conventionally unpacked structure. Winding, still does not produce winding defects.

The roller 5 is placed in the storage bag 11. Further, when a light (ultraviolet) curable composition or the like is used as an adhesive or an adhesive constituting the film 9, the film can be used. The opaque material is used as the storage bag 11.

The roller 5 is placed in the storage bag 11, and the side plates 3 are provided at both end portions in a state of being deaerated and heat-sealed. 3 is a view showing the side plate 3, FIG. 3(a) is a plan view, and FIG. 3(b) is a cross-sectional view taken along line A-A of FIG. 3(a).

The side plate 3 is a member having a substantially rectangular shape that is radially formed as a rib from the center. A recess 17 is provided substantially at the center of the upper surface of the side plate 3. Further, a convex portion 19 is provided substantially at the center of the lower surface side of the side plate 3. The convex portion 19 is a substantially cylindrical portion that protrudes toward the lower side of the side plate. A rib is formed in the outer edge portion of the side plate 3 in the same direction as the direction in which the convex portion 19 is formed. The ribs may have a continuous plate shape, or may be a through hole penetrating as shown in FIG. Further, the four corners of the substantially rectangular shape of the side plate 3 may have an angle, or may be curved as shown in Fig. 3(a). In order to relax the force applied from the up and down direction and to be difficult to disperse, it is preferable to form a curved shape via a hole or/and a hole. Further, the shape of the side plate 3 is not limited to the illustrated example, and the outer shape of the side plate 3, the shape and size of the concave portion 17, the convex portion 19, the rib shape, and the like can be appropriately set. Further, the side plate 3 can be formed by one molding using a mold or the like, or can be divided into a substantially rectangular plate and a member such as the convex portion 19, and then separately manufactured and then combined. If it is manufactured according to each part, it can be disassembled and stored, so it is easy to handle.

Further, since the film 9 is used for manufacturing a semiconductor device, it is usually handled in a clean room. Therefore, the core 7, the side plate 3, the storage bag 11, the strap 15 and the like constituting the packing structure 1 are made of a resin or the like which can be handled in a clean room. That is, materials such as paper, cardboard, and fiber are not suitable. In terms of the resin, it is preferable to reduce the environmental burden particularly when a naturally decomposable resin is used.

Among them, the amount of deformation is preferably 2% or less with respect to a compressive force of 1500 N from the side of the side plate 3. Fig. 4 is a schematic view showing an experimental method of compressive strength of the side plate 3. As shown in FIG. 4, on the side of the side panel 3 (with the recess 17, The jig 21 is placed in the direction in which the convex portion 19 is formed in the direction perpendicular to the direction in which the convex portion 19 is formed, and the compressive force (direction of the arrow C in the figure) is applied to the jig 21 with a force of 1500 N, and the amount of compressive deformation at this time is measured. When the amount of deformation is more than 2% with respect to the original twist, the side plate 3 is deformed at the time of conveyance or when it is fixed by a strap, and there is a possibility that the film 9 is not wound around the film 9 or the like.

As shown in FIGS. 1 and 2, the convex portion 19 of the side plate 3 is fitted and fitted to the hollow portion of both end portions of the core 7. Here, in a state where the side plate 3 is attached to the roller 5, the roller 5 (film 9) is sandwiched by the side plate 3. Therefore, the film 9 is fixed to the side plate 3 at both side portions in the roll state.

Here, when the side plate 3 is pushed into the core 7, in order to prevent the side plate 3 from damaging the side end portion of the film, the twist of the core 7 and the twist of the film 9 are preferably substantially the same or slightly smaller. Further, when the side plate 3 is fitted to the core 7, in order to reliably hold both end portions of the film 9 by the side plate 3, a cushioning elastic member may be disposed in the gap between the side plate 3 and the film 9 side end portion as necessary. Wait. Further, when the size of the side plate 3 is set to be slightly larger than the outer diameter of the roller 5, and the roller 5 is housed inside the rib of the outer edge portion of the side plate 3, the contact between the inner surface of the packing box and the roller 5 can be prevented.

As shown in FIG. 2, the side plate 3 and the roller 5 are fixed by the two straps 15 with respect to the roller 5 in which the pair of side plates 3 are attached to the upper and lower ends. The strap 15 is attached to the outside of the side panel 3 and the roller 5 (the storage bag 11) over the entire circumference in at least two intersecting manners, and the side panel 3 and the roller 5 are fixed.

When there are two straps, the two straps 15 are arranged at substantially the center of the side panel 3. That is, the intersection of the two straps 15 is the position of the recess 17 (Fig. 3). Therefore, the vicinity of the intersection of the two straps 15 is prevented from coming into contact with the side plate 3, and a gap is formed between the side plates 3 (the recesses 17). Therefore, when the roller 5 is lifted up, the hand (finger) can be inserted into the gap formed by the recessed portion 17, and the intersection of the strap 15 can be grasped and lifted. Therefore, when taken out from the packing box, it can be arranged side by side in a plurality of rolls 5 The roller 5 is easily lifted in the state.

Further, the packing structure 1a shown in Fig. 5 can be further increased into four straps. In this case, the four straps are formed in a well pattern by two strips. Therefore, it becomes difficult to easily cross the roller 5 at the center portion, but it is difficult to lift the roller 5 easily, but the roller 5 can be lifted up by inserting a finger or the like into an oblique portion, that is, the roller 5 can be taken out with a good balance. . Further, when there are four straps, one or three straps may be tied to each other. Either one or more intersections can be provided, whereby the roller 5 can be easily lifted.

Further, the intersections of the two straps 15 can be fixed to each other. For example, the straps 15 can also be welded or bonded to each other or secured by other binding members. Further, a shallow groove in which the strap is fitted may be provided at the outer edge portion of the side plate 3 to fix the position where the strap is bundled, thereby inducing the position where the intersection portion comes to the recess portion 17 (Fig. 3). In this way, the position of the intersection is not shifted and is easier to handle.

Further, the strap 15 is preferably made of a resin that can be carried into the clean room. In particular, it is better to reduce the environmental burden when using a naturally decomposable resin. Further, as described above, in order to avoid the breakage of the strap when the strap 15 is lifted by the strap 15, the tensile breaking strength or the 5% modulus is preferably 200 N or more.

Fig. 6(a) is a front view showing the packing structure 1 (excluding the packing box). The roller 5 is disposed such that the pair of side plates 3 are positioned in the up and down direction. In this state, the side plates 3 are reliably fixed to the rolls 5 by the straps 15. The distance between the side plates 3 at this time is H1.

Next, as shown in FIG. 6(b), the upper side plate 3 (in the direction of the arrow B in the drawing) is lifted from this state. The distance between the side plates 3 when the roller 5 is completely lifted is H2. That is, (H2-H1) is a distance change amount by the extension of the strap 15 and the remainder of the side panel 3 by the weight of the bale structure itself.

In the present invention, it is preferable to set the amount of change in the distance between the side plates (H2-H1) to 1% or less of H1 in consideration of the weight of the packing structure, the strength of the band 15, the remainder of the side plates 3, and the like. In other words, after the weight of the packing structure is set, the strength of the band 15 and the margin of the side plate 3 are set so as to have the above relationship. Further, since the dicing die film is placed in an environment of 5 ° C or lower during transportation, storage, or the like, and is placed at room temperature during the treatment, it is preferably less affected by the temperature change. Specifically, in the case of the band 15 at 0 ° C to 30 ° C, the expansion ratio in the longitudinal direction is preferably within ±1%.

As shown in FIGS. 1 and 2, the roller 5 and the like thus formed are inserted into the packing box 13. Further, the packing box 13 is protected during transportation and storage, and the internal roller 5 or the like is taken out before being processed in the clean room. Therefore, the packing box 13 can also be made of cardboard.

Moreover, in the figure, the two rolls 5 are exemplified in the packing box 13, but the present invention is not limited thereto. However, in consideration of the lamination property and handleability of the packing box at the time of conveyance, it is preferable to accommodate the roll 5 of 2 rolls or 4 rolls for one packing case 13. The roll 5 of one roll makes the bottom area of the packing case 13 small and becomes unstable, so it is difficult to laminate a plurality of layers. Moreover, when it is six or more rolls, the size of the packing case 13 becomes large and becomes heavy, and it becomes difficult to process. Therefore, it is preferable to store the roll 5 of 2 rolls or 4 rolls in the packing case 13.

As described above, according to the present invention, since the roller 5 is sandwiched by the side plate 3, the winding tension is weaker than usual, and the occurrence of winding irregularity can be prevented. Further, since the convex portion 19 of the side plate 3 is fitted to the core 7, the side plate 3 does not shift during transportation or the like. Moreover, since the strength of the side plate 3 is sufficient, positional displacement due to deformation or the like can be prevented.

Further, since the side plate 3 is formed with a concave portion and the band 15 is intersected at the position of the concave portion 17, the intersection portion of the band 15 can be easily grasped to lift the roller 5. also, When the intersections are fixed to each other or the straps are fixed to the bundled position, the positions of the intersections are not offset.

Moreover, the side plate 3 is arranged in the vertical direction, and the amount of change in the distance between the side plates when the upper side plate 3 is lifted is 1% or less of the distance between the original side plates, and it is possible to prevent the winding from being uneven during the processing.

The embodiments of the present invention have been described above with reference to the drawings, but the technical scope of the present invention is not limited to the above embodiments. It is a matter of course that various modifications and changes can be made without departing from the spirit and scope of the invention.

"Embodiment"

The evaluation of various bale forms was carried out. The film to be evaluated was used as a dicing film for dicing as shown in Fig. 8 . Hereinafter, a manufacturing method of each configuration will be described.

<Production of adhesive film>

In 400 g of toluene of a solvent, 128 g of n-butyl acrylate, 307 g of 2-ethylhexyl acrylate, 67 g of methyl (meth)acrylate, and 1.5 g of methacrylic acid were used as a polymerization initiator. The amount of the dropwise addition was appropriately adjusted, and the reaction temperature and the reaction time were adjusted to obtain a solution of the compound (1) having a functional group.

Next, the polymer solution was used as a compound (2) having a radiation-curable carbon-carbon double bond and a functional group, and 2-hydroxyethyl (meth)acrylate 2.5 g synthesized from methacrylic acid and ethylene glycol. The hydroquinone which is a polymerization inhibitor is adjusted and appropriately added, and the reaction temperature and the reaction time are adjusted to obtain a solution of the compound (A) having a radiation-curable carbon-carbon double bond. Next, 100 parts by mass of the compound (A) in the solution of the compound (A) is added as a polyisocyanate. One part by mass of the ester (B), CORONET L, manufactured by Polyurethane Co., Ltd., is used as a photopolymerization initiator, 0.5 parts by mass of IRGACURE 184 manufactured by Ciba-geigy Co., Ltd., and 150 parts by mass of ethyl acetate as a solvent. The compound (A) solution is added and mixed to prepare a radiation curable adhesive composition.

Next, the prepared adhesive layer composition was applied to a film having a thickness of 100 μm to a dry film thickness of 20 μm, and dried at 110 ° C for 3 minutes to prepare an adhesive film 1A.

<release film>

The release film 2A was a release-treated polyethylene terephthalate film having a thickness of 25 μm.

<Production of bonding film>

In the epoxy resin cresol novolac type epoxy resin (epoxy equivalent 197, molecular weight 1200, softening point 70 ° C) 50 parts by mass, as a decane coupling agent γ-mercaptopropyl trimethyl decane 1.5 mass A component comprising 3 parts by mass of γ-ureidopropyltriethyl decane and 30 parts by mass of a cerium oxide filler having an average particle diameter of 16 nm was added to cyclohexanone, stirred and mixed, and further kneaded using a bead mill for 90 minutes.

100 parts by mass of an acrylic resin (mass average molecular weight: 800,000, glass transition temperature - 17 ° C), 5 parts by mass of polydipentaerythritol hexaacrylate as a 6-functional acrylate monomer, and 6-membered as a hardener 0.5 parts by mass of an adduct of methyl diisocyanate and 2.5 parts by mass of curezol 2PZ (trade name of Nippon Kasei Co., Ltd., 2-phenylimidazole) were stirred and mixed, and deaerated under vacuum to obtain an adhesive. The above-mentioned adhesive agent was applied onto the release film 2A, and dried by heating at 110 ° C for 1 minute to form a coating film having a film thickness of 20 μm in a B-stage state (hardened intermediate state of the thermosetting resin), and a release film. The adhesive layer 3A is formed on 2A and stored in a refrigerator.

<Pre-cutting processing>

The release film 2A on which the adhesive layer 3A having been stored in the refrigerator is formed is returned to normal temperature, and the adhesive layer is adjusted so that the depth of cut into the release film is 10 μm or less, and a circular pre-cut process of 220 mm in diameter is performed. Then, the unnecessary portion of the adhesive layer is removed, and the release film 2A is laminated at room temperature so that the adhesive layer of the adhesive film 1A is in contact with the adhesive layer. Then, the adhesive film 1A is adjusted so that the cut-in depth to the release film is 10 μm or less, and a circular pre-cut process having a diameter of 290 mm concentric with the adhesive layer is performed to prepare a wafer processing tape 4A. .

The film produced according to the above was bundled in various ways.

(Example 1)

The pre-cut processed wafer processing tape 4A was provided with an unlabeled portion of about 1.2 m at the start winding and the end winding, and 300 sheets were taken at 10N. This was housed in a polyethylene bag, degassed, and then heat-sealed, and the side plates made of polypropylene in the shape of Fig. 3 were attached to both end portions. Further, the two PP straps are bundled into a cross and welded to join. The amount of change in the distance between the side plates (H2-H1 in Fig. 5) is 0.3% of the distance (H1) between the side plates. Two rolls of the same volume were produced, and as shown in Fig. 7 (a), two rolls were stored in a packing box 13 of a cardboard box, and the tape processing package for wafer processing of Example 1 was obtained.

(Example 2)

As shown in Fig. 7 (b), the wafer processing tape package of Example 2 was obtained in the same manner as in Example 1 except that the four rolls were housed in the packing box 13a.

(Example 3)

The wafer processing tape of Example 3 was obtained in the same manner as in Example 1 except that the PP strap was bundled so that the distance between the side plates was changed by 1%. Bundle body.

(Example 4)

The wafer processing tape package of Example 4 was obtained in the same manner as in Example 1 except that the four straps were bundled into a well pattern.

(Example 5)

The wafer processing tape package of Example 5 was obtained in the same manner as in Example 1 except that the two PP straps were not welded, and the grooves were provided on the outer edges of the four sides of the side panels.

(Comparative Example 1)

The wafer processing tape package of Comparative Example 1 was obtained in the same manner as in Example 1 except that the winding tension was 40 N.

(Comparative Example 2)

As shown in Fig. 7 (c), the wafer processing tape package of Comparative Example 2 was obtained in the same manner as in Example 1 except that one roll was stored in the packing box 13b.

(Comparative Example 3)

The wafer processing tape package of Comparative Example 3 was obtained in the same manner as in Example 1 except that the side plate was made of kraft paper.

(Comparative Example 4)

The wafer processing tape package of Comparative Example 4 was obtained in the same manner as in Example 1 except that the PP tape was bundled into a distance change of 2% between the side plates.

The results are shown in Table 1.

The "wound winding" and "transfer marks" in the table were evaluated in the following manner. First, each package was stored in a refrigerator (5 ° C) for one month, and then placed in a transport truck. In a refrigerated state, it was moved back and forth between Japan and the Shrine (about 1000 km). Then, the bundles are bundled, the package is returned to normal temperature, and the package is opened. Only the core is fixed and the roller is placed under natural load for 1 minute, and then the presence or absence of winding is observed. If the winding is not 2 mm. It is "○" inside, and "X" when the winding is 2 mm or more.

Next, the roll was unwound, and the presence or absence of a transfer mark was visually observed and evaluated. When it is visually observed from various angles, it is impossible to confirm that the transfer marks or voids are "◎", and it is confirmed that some transfer marks or voids are "○" depending on the angle, and any transfer marks or voids on the film can be confirmed by visual observation from any angle. It is "X".

In addition, each of the bundles was stacked in three layers and stored in a refrigerator (5 ° C) for one month, and then placed in a transporting trolley to observe the presence or absence of a cargo collapse at an acceleration of 0.01 m/sec ² to 0.25 m/sec ² . under. "○" when there is no cargo collapse, and "X" when the cargo collapses.

Moreover, each package body was bundled, and the handleability was evaluated at the time of taking out a roll. very much Those who are easy to handle, have excellent handling and productivity, are "◎", and those who are easy to handle, have good handling and productivity are "○", and those who are difficult to handle, have poor handling and productivity are "X".

In the first to third embodiments and the comparative examples 1 to 3 in which the side plates were used, the winding was not generated, but the comparative example 4 in which the amount of change in the distance between the side plates was large was caused to be misaligned. It is known that the winding amount is prevented in such a manner that the amount of change in the distance between the side plates is small.

Regarding the transfer marks, each of the examples and the comparative examples was completely uncontrollable, but was evaluated as "x" in Comparative Example 1 in which the winding tension was as high as 40 N. That is, it is known that there is a difference in the generation of transfer marks depending on the winding tension.

Regarding the lamination property, the product was collapsed in Comparative Example 2 in which one roll was stored in the packing box. When it is found that two or more rolls are accommodated in the packing box, the stability after lamination is high.

Regarding the handleability, in Examples 1 to 2, Example 5, and Comparative Example 1 in which the bundles were strongly bundled, the product was easily taken out. In the embodiment 3, the bundle has a certain amount of looseness, so that the product take-out property is slightly inferior. In the fourth embodiment, the intersecting portions of the straps have no depressions, so that they are not easily caught when taken out, and the handleability is slightly inferior. In the second comparative example, the product was easily taken out, but it was stored in the bale case in one roll and one roll. Therefore, it was necessary to open the bundle in one roll and one roll, and the productivity was inferior. In Comparative Example 3, since the side plate made of kraft paper was used, it was not possible to directly carry it into the clean room in which the product was used, and it was necessary to remove the side plate treatment in the clean room, and the handleability was poor. In Comparative Example 4, the strength of the band was weak, so that it was difficult to hold and the handleability was poor.

1, 1a‧‧‧ bale structure

3‧‧‧ side panels

5‧‧‧ Roll

7, 101‧‧ core

9, 100‧‧‧ film

11‧‧‧ storage bag

13, 13a, 13b‧‧‧ bundled boxes

15‧‧‧Band

17‧‧‧ recess

19‧‧‧ convex

21‧‧‧Clamp

103‧‧‧ release film

105‧‧‧ adhesive layer

107‧‧‧Adhesive film

107a‧‧‧Circular label

107b‧‧‧ peripherals

Distance between H1, H2‧‧‧ side panels 3

Fig. 1 is an exploded perspective view showing the bale structure 1.

2 is a perspective view showing the bale structure 1.

3(a) and 3(b) are views showing the side plate 3, and Fig. 3(a) is a plan view. 3(b) is a cross-sectional view taken along line A-A of Fig. 3(a).

Fig. 4 is a schematic view showing an experimental method of compressive strength of the side plate 3.

Fig. 5 is an exploded perspective view showing the packing structure 1.

6(a) and 6(b) are views showing a state in which the bale structure 1 is lifted up.

7(a) to 7(c) are diagrams showing the storage form of the roller 5.

8(a) and 8(b) are views showing the film 100, Fig. 8(a) is a front view, and Fig. 8(b) is a cross-sectional view taken along line D-D of Fig. 8(a).

1‧‧‧Bundle structure

3‧‧‧ side panels

5‧‧‧ Roll

7‧‧ ‧ core

9‧‧‧film

11‧‧‧ storage bag

13‧‧‧Bundle box

15‧‧‧Band

17‧‧‧ recess

19‧‧‧ convex

Claims (6)

A packing structure for a die-bonding film for dicing, comprising: a roll comprising a hollow core and an elongated die-cut film which is wound around the core and pre-cut into a predetermined shape; a pair of side plates, a projection having a hollow portion corresponding to the core; and two to four straps for fixing the roller and the side plate; wherein the strap is in a range of 0 ° C to 30 ° C, and the expansion ratio in the longitudinal direction is ± 1% or less; the convex portion is attached to one end of the core; at least two of the straps are intersected with each other at a portion of the side plate; and each of the pair of side plates is placed in a vertical direction The amount of change in the distance between the side plates when the upper side plate is lifted upward is 1% or less of the distance between the side plates before the side plates are lifted up. The binding structure of the dicing film for dicing according to the first aspect of the invention, wherein the side plate and the roller system fixed by the tying tape are arranged in two or more rows and housed in a packing box. The packing structure of the die-bonding film for cutting according to the first aspect of the invention, wherein the width of the core is smaller than a width of the roller, and a concave portion is provided in a center of the opposite side surface of the convex portion of the side plate, in the concave portion At least two of the aforementioned straps intersect. In the packing structure of the dicing die for cutting according to the first aspect of the invention, at least two of the slats are fixed to each other at the intersection. A method for packaging a die-bonding film for cutting, wherein a long-shaped die-cut film for pre-cutting into a predetermined shape is wound around a hollow core to form a roll; and a convex portion having a hollow portion corresponding to the core is formed Install the side panel to the front The roller is such that the convex portion is fitted to both ends of the core; at 0 ° C to 30 ° C, a stretch band having a stretch ratio of ±1% in the longitudinal direction is used; and the bundle of two to four is used. The distance between the side plates when the upper side plate is lifted upward in a state where the pair of the side plates are placed in the vertical direction so that the pair of side plates are placed in the vertical direction The amount is 1% or less of the distance between the side plates before lifting the side plates. The method for packaging a dicing film for dicing according to claim 5, wherein after the tying is attached, at least two of the slats are fixed at intersections of the two.