TW202413292A - Method for manufacturing glass articles, method for manufacturing electronic components, and jig for substrate peeling - Google Patents

Abstract

When peeling off the upper substrate 4 from the laminate 1 formed by attaching the upper substrate 4 to the lower substrate 3, in the peeling step of inserting the knife 5 into the interface X between the two substrates 3 and 4 to generate the peeling starting point 6, a clamp 2 having a guide surface 2f for guiding the movement of the knife 5 is used, and the knife 5 is moved toward the laminate 1 while being in contact with the guide surface 2f of the clamp 2, thereby inserting the knife 5 into the interface X.

Description

Method for manufacturing glass articles, method for manufacturing electronic components, and jig for removing substrates

The present invention relates to a method for peeling off an upper layer side substrate from a laminate including a substrate such as glass.

In recent years, electronic components such as liquid crystal displays, solar cells, smartphones, and tablet PCs have been increasingly thinned or lightweight, and along with this, there is an increasing demand for thinner substrates, such as glass, used in these electronic components.

In the case where the substrate is thinned, it is difficult to smoothly perform various treatments on the substrate. Therefore, the following situation has been proposed or put into practical use, that is, the substrate is attached to another substrate for reinforcement to produce a laminate, and various treatments are performed on the substrate in the state of the laminate.

Then, after various treatments are applied to the substrate, the substrate is peeled off from the laminate, thereby obtaining a glass substrate as a product. As a peeling method in this case, for example, according to Patent Document 1 or Patent Document 2, it is disclosed that the substrate on the upper layer side is peeled off from the laminate using a knife.

Specifically, these publications disclose that a blade is inserted into the interface between the substrate on the lower layer side and the substrate on the upper layer side of the laminate to generate a peeling starting point, and peeling is advanced from the peeling starting point.

Furthermore, Patent Document 2 discloses that the height position of the knife is adjusted by a height adjustment device. [Prior Art Document] [Patent Document]

[Patent Document 1] International Publication No. 2019/059057 [Patent Document 2] Japanese Patent Gazette No. 6075567

[The problem that the invention wants to solve]

Furthermore, the height adjustment device disclosed in Patent Document 2 is a device for adjusting the height position of the knife when the knife is in the initial state of being separated from the laminate (see paragraph [0064] of the document). Therefore, in the process of the knife moving toward the laminate, there is a risk that the knife's height position may shift or the knife may wobble in the vertical direction. As a result, it is difficult to reliably insert the knife into the interface between the substrate on the lower layer side and the substrate on the upper layer side. In this case, if at least one of the substrates is a glass substrate, it becomes a factor that causes defects or cracks.

From the above viewpoints, the subject of the present invention is to reliably insert the knife into the interface between the substrate on the lower layer side and the substrate on the upper layer side of the laminate. [Means for solving the problem]

(1) The first aspect of the present invention created to solve the above-mentioned problem is a method for manufacturing a glass article, comprising a peeling step, wherein when peeling the upper substrate from a layered structure in which the upper substrate is attached to the lower substrate and at least one of the two substrates is formed of glass, a knife is inserted into the interface between the two substrates to generate a peeling starting point. The method for manufacturing the glass article is characterized in that, in the peeling step, a fixture having a guide surface for guiding the movement of the knife is used, so that the knife moves toward the interface while in contact with the guide surface. Here, the upper substrate refers not only to one substrate but also to a laminated body formed by a plurality of substrates attached to each other. Similarly, the lower substrate refers not only to one substrate but also to a laminated body formed by a plurality of substrates attached to each other (the same shall apply hereinafter).

According to this method, the knife is moved toward the interface between the two substrates of the laminate while being in contact with the guide surface of the clamp, and the knife is inserted into the interface. Therefore, when the knife moves, there will be no problem of the knife's position shifting in the height direction or the knife shaking in the vertical direction. Therefore, by setting the height position of the guide surface of the clamp to correspond to the height position of the interface, the knife can be reliably inserted into the interface. In this way, it is possible to avoid the occurrence of defects or cracks in the glass substrate.

(2) In the structure of (1), the laminate and the clamp are preferably arranged so that when the tip of the knife reaches the interface, the knife is in contact with the guide surface.

If this is done, the knife can be inserted into the interface more reliably.

(3) In the structure of (1) or (2), a film having a thickness of less than 1 μm may be interposed between the two substrates. Here, the film may be, for example, an organic film or an inorganic film.

If so, not only when the two substrates are directly connected in a manner that a close contact force is exerted on each other, but also when there is an extremely thin film with a thickness of less than 1 μm between the two substrates, a peeling starting point can be appropriately generated. In this case, when the two substrates are directly connected, the upper surface of the substrate on the lower layer side and the lower surface of the substrate on the upper layer side become an interface, and the knife is inserted into the interface. On the other hand, when there is a film between the two substrates, any position between the lower surface of the substrate on the upper layer side and the upper surface of the substrate on the lower layer side becomes an interface, and the knife is inserted into the interface.

(4) In any of the structures (1) to (3), the two substrates of the laminate may not extend from each other over the entire circumference.

In this case, when the two substrates do not extend toward each other over the entire circumference, it is particularly difficult to insert a knife into the interface, but this problem can be avoided if a clamp is used as described.

(5) In any one of the structures (1) to (4), it is preferred that the height position of the guide surface of the clamp is substantially the same as or lower than the height position of the interface, and the height difference between the two is smaller than the thickness of the knife.

If so, the knife can be inserted into the interface while the knife is in reliable contact with the guide surface of the clamp.

(6) In any one of the structures (1) to (5), it is preferred that the length of the gap between the clamp and the laminate in the horizontal direction is shorter than the length of the knife along the moving direction.

In this case, the knife can also be inserted into the interface while the knife is reliably in contact with the guide surface of the clamp.

(7) In any one of the structures (1) to (6), it is preferred that the clamp is maintained so as to be able to be adjusted in the vertical direction.

This allows the vertical position adjustment of the jig, thereby being able to cope with differences in thickness of the substrate on the lower layer side.

(8) In any one of the structures (1) to (7), it is preferred that the clamp is maintained so as to be capable of horizontal position adjustment.

If so, the position of the clamp can be adjusted in the horizontal direction, so the gap between the clamp and the laminate can be adjusted in the horizontal direction.

(9) In any one of the structures (1) to (8), it is preferred that the clamp is maintained so as to be capable of adjusting the angle within a horizontal plane.

In this way, the angle of the jig can be adjusted in the horizontal plane, so it is possible to cope with the difference in the angle of the corner of the laminate when viewed from the upper side to the lower side.

(10) In any one of the structures (1) to (9), the clamp is preferably formed along two intersecting sides of the substrate on the lower layer side.

In this way, the knife can be reliably inserted into the interface of the corner of the laminate when viewed from the upper side to the lower side.

(11) In any of the structures (1) to (10), the following preparation step may be performed before executing the peeling step, namely, obtaining an original stacked body by attaching an original substrate on the upper side to an original substrate on the lower side and performing a process on the original substrate on the upper side, and cutting the original stacked body into a plurality of pieces, thereby obtaining the stacked body in which the original substrate on the lower side becomes the substrate on the lower side and the original substrate on the upper side becomes the substrate on the upper side.

If so, among the plurality of laminates obtained, there may be laminates in which the two substrates do not extend from each other over the entire circumference as described above, but even for such laminates, a knife can be inserted between the two substrates without any problem.

(12) The second aspect of the present invention created to solve the above-mentioned problem is a method for manufacturing an electronic component, which is characterized by comprising: a preparation step, in which an original glass substrate on the upper layer side is attached to an original substrate on the lower layer side, and then an original electronic component material containing the original glass substrate is produced, thereby obtaining an original laminate; a cutting step, in which the original laminate is cut into a plurality of pieces, thereby obtaining the original substrate as a substrate and the original electronic component as a substrate; The sub-component material becomes a plurality of laminates of the electronic component material; and a peeling step, when peeling the electronic component material from the laminate, a knife is inserted into the interface between the substrate and the electronic component material to generate a peeling starting point, and in the peeling step, a clamp having a guide surface for guiding the movement of the knife is used to make the knife move toward the interface in a state of contact with the guide surface.

This method also allows the knife to be reliably inserted into the interface between the substrate and the electronic component material (glass substrate).

(13) The third aspect of the present invention created to solve the above-mentioned problem is a substrate stripping jig, which is characterized in that when a knife is inserted into the interface between the two substrates of a laminate in which an upper-layer substrate is attached to a lower-layer substrate to generate a stripping starting point, the substrate stripping jig has a guide surface that contacts the knife and guides the knife to move toward the interface.

If a substrate stripping jig of this structure is used, the knife can be reliably inserted into the interface in the same manner as in the above case. [Effect of the invention]

According to the present invention, the knife can be reliably inserted into the interface between the substrate on the lower layer side and the substrate on the upper layer side of the laminate.

Hereinafter, a method for manufacturing a glass article, a method for manufacturing an electronic component, and a jig for peeling a substrate according to an embodiment of the present invention will be described with reference to the accompanying drawings.

The manufacturing method of the glass article of the present embodiment includes a peeling step for peeling the substrate on the upper layer side from the glass laminate. When performing the peeling step, a jig (substrate peeling jig) can be used.

Fig. 1 is a perspective view showing a glass laminate 1 and a jig 2. As shown in the figure, the glass laminate 1 is formed by attaching a glass film 4 as an upper substrate to a supporting glass substrate 3 as a lower substrate. In this case, the supporting glass substrate 3 and the glass film 4 are directly in contact, and a close contact force acts on the interface X between the two 3 and 4.

The supporting glass substrate 3 and the glass film 4 are both rectangular in shape when viewed from the top to the bottom (hereinafter referred to as a top view), and the two 3 and 4 do not extend from each other over the entire circumference. The thickness of the glass film 4 is, for example, 300 μm or less, preferably 200 μm or less. In addition, the thickness of the supporting glass substrate 3 is, for example, 1500 μm or less, preferably 700 μm or less, and further preferably 500 μm or less. The two 3 and 4 are flexible.

The jig 2 shown in the figure is used when peeling the glass film 4 from the glass laminate 1, and is placed on the same working surface F together with the glass laminate 1. The jig 2 includes: a corner 2a corresponding to the corner 1a of the glass laminate 1 when viewed from above, and a side (one end face) 2b and another side (the other end face) 2c corresponding to one side (one end face) 1b of the glass laminate 1 and the other side (the other end face) 1c connected thereto. The length of the one side 1b and the other side 2c of the glass laminate 1 when viewed from above is, for example, 10 mm to 900 mm, preferably 100 mm to 500 mm.

One side 2b of the clamp 2 bounded by the corner 1a is substantially orthogonal (or substantially orthogonal) to the other side 2c. In addition, the two sides 2d and 2e of the clamp 2 on the side away from the glass laminate 1 are also substantially orthogonal. The overall shape of the clamp 2 is a shape extending with the same width in directions orthogonal to the corner 2a. The clamp 2 can be formed of glass, ceramics, resin, etc., but is formed of glass in this embodiment.

FIG2 illustrates an initial state when the peeling step is performed. As shown in the figure, the two sides 2b and 2c of the clamp 2 bounded by the corner 2a are arranged along the two sides 1b and 1c bounded by the corner 1a of the glass laminate 1 (strictly speaking, the two sides bounded by the corner 1a of the supporting glass substrate 3). In addition, the corner 2a of the clamp 2 is substantially in contact with the corner 1a of the glass laminate 1 (in contact or approximately in contact).

In this peeling step, a knife 5 is used. The upper surface 2f of the jig 2 is set as a guide surface for guiding the knife 5 to move toward the glass laminate 1 (its corner 1a) (movement in the direction of arrow a). In this embodiment, the height position of the guide surface 2f of the jig 2 and the height position of the interface X of the glass laminate 1 are set to be substantially the same (same or approximately the same).

When the knife 5 moves in the direction of arrow a from the initial state in a state of contacting the guide surface 2f of the fixture 2, first, as shown by the solid line in FIG3, the tip 5a of the knife 5 reaches the interface X of the glass laminate 1. In detail, as shown in FIG4, the knife 5 has: a blade portion 5b whose thickness gradually decreases from the blade root side toward the tip 5a, and a blade root side portion 5c whose thickness does not change. And, the knife 5 moves in a state in which only the blade portion 5b (the lower surface) of the knife 5 is in contact with the guide surface 2f of the fixture 2, so that the tip 5a of the knife 5 accurately reaches the interface X of the glass laminate 1. The thickness of the blade 5 (strictly speaking, the thickness of the blade root portion 5c) is 50 μm to 150 μm, preferably 80 μm to 120 μm.

From this state, the knife 5 further moves in the direction of arrow a while in contact with the guide surface 2f of the fixture 2, thereby inserting the knife 5 into the interface X as shown by the solid line in FIG5. As a result, a peeling start point 6 is generated at the interface X. The peeling start point 6 is generated in the form of parallel oblique lines with dashed lines added in FIG6. In addition, the movement of the knife 5 in the direction of arrow a is performed by an operator or a robot arm, etc.

After the peeling starting point 6 is formed, a sheet member (not shown) such as a Teflon sheet (registered trademark) is inserted into the peeling starting point 6, thereby pulling out the knife 5 in a state where re-adhesion can be prevented. Then, the peeling of the interface X is advanced by a method (known method) such as using an adsorption pad. And, the peeling step is completed by the progress of the peeling, and the glass film 4 (glass article) as a product is obtained.

In the peeling step, the height position of the guide surface 2f of the clamp 2 is set to be substantially the same as the height position of the interface X of the glass laminate 1. In this case, the thickness of the knife 5 is extremely thin as already illustrated. Therefore, even if the height position of the guide surface 2f is lower than the height position of the interface X, as long as the height difference between 2f and X is smaller than the thickness of the knife 5, there will be no problem in making the tip 5a of the knife 5 accurately reach the interface X. Therefore, the height position of the guide surface 2f is preferably substantially the same as the height position of the interface X, but even if the height position of the guide surface 2f is lower than the height position of the interface X, as long as the height difference between 2f and X is smaller than the thickness of the knife 5, it will be sufficient.

In the stripping step, the knife 5 is moved in the direction of arrow a with only the blade portion 5b of the knife 5 in contact with the guide surface 2f of the fixture 2, but as shown in FIG7 , the knife 5 may be moved with only the blade root portion 5c (its lower surface) of the knife 5 in contact with the guide surface 2f. In the case of the above-described method, the height position of the guide surface 2f is preferably lower than the height position of the interface X by only 1/2 of the thickness of the knife 5. Furthermore, for example, as shown in FIG8 , the shape of the knife 5 may be a shape in which the thickness gradually decreases from the blade root toward the knife tip 5a along the entire length along the moving direction, etc., and there is no particular limitation.

In order to cope with the situation where the supporting glass substrate 3 is changed to one with a different thickness, the clamp 2 of this embodiment includes the structure shown below. That is, as shown in FIG9 , through holes 2g are formed in the clamp 2 at multiple locations (four locations in the example) excluding the peripheral area of the corner 2a. Rod-shaped guide members 7 extending in the vertical direction are inserted into these through holes 2g. Thereby, the clamp 2 is guided by the guide member 7 and can move up and down. In this case, as shown in FIG10 , a base plate 8 may be arranged below the clamp 2 with a gap S between them, and the lower end of the guide member 7 may be fixed to the base plate 8. If so, the spacer with a different thickness is appropriately changed and inserted into the gap S below the clamp 2, thereby adjusting the position of the clamp 2 in the vertical direction. In addition, the position of the clamp 2 in the vertical direction may be adjusted by using a driving component such as an LM guide or an air cylinder. Alternatively, the guide member 7 may not be used, and bolts may be screwed into threaded holes formed at multiple locations of the clamp 2 from above, and the bolts may be rotated to adjust the position of the clamp 2 in the vertical direction. In this case, the base plate 8 may be provided or may not be provided.

In the stripping step, the corner 2a of the clamp 2 is brought into substantial contact with the corner 1a of the glass laminate 1. However, due to the fact that the shapes of the clamp 2 and the glass laminate 1 are inconsistent with each other when viewed from above, it is sometimes impossible to bring the two corners 1a, 2a into substantial contact. In addition, there is also a demand to increase the degree of freedom in the layout of the clamp 2 and the glass laminate 1. In order to cope with these, the clamp 2 of this embodiment includes the structure shown below. That is, as shown in FIG11, the clamp 2 is maintained so as to be able to slide in the moving direction of the knife 5 and in the opposite direction thereof by a plurality of (two in the example) guide rails 9 arranged thereunder. In this case, as shown in FIG. 12, a base plate 10 is disposed below the clamp 2 with a gap T therebetween, and a guide rail 9 is fixed to the base plate 10. Furthermore, the clamp 2 can be moved by being guided by the guide rail 9 by inserting a groove 2h formed at the bottom of the clamp 2. In this case, a driving component such as an LM guide or a cylinder can also be used. In this way, the position of the clamp 2 in the horizontal direction can be adjusted. Specifically, the length of the gap in the horizontal direction between the clamp 2 and the glass laminate 1 can be adjusted. At this time, the length of the gap to be adjusted is preferably limited to a range shorter than the length of the knife 5 along the moving direction. Here, the length of the gap refers to the length of the gap between the corners 1a and 2a of the two 1 and 2 along the moving direction of the knife 5. In this way, the knife 5 can reach the interface X of the glass laminate 1 with its tip 5a in a state where the knife 5 is reliably in contact with the guide surface 2f of the clamp 2.

In the stripping step, the corner 2a of the clamp 2 is set to be substantially a right angle, but the angle of the corner 1a of the glass laminate 1 is sometimes not substantially a right angle due to errors or the like. In order to cope with this situation, the clamp 2 of the present embodiment includes the structure shown below. That is, as shown in FIG13 , the clamp 2 is divided into two parts with the corner 2a as a boundary. Moreover, each of the divided clamp pieces 2i is maintained so as to be able to slide along the direction of the arc by means of an arc-shaped guide rail 11 disposed below them. Specifically, the guide rails 11 are bent to imitate an arc centered at the corner 2a of the clamp 2. In this case, as in the above case, a base plate may be arranged below the clamp piece 2i, and a guide rail may be fixed to the base plate, and a groove 2j formed at the bottom of the clamp piece 2i may be embedded in the guide rail. Alternatively, a driving component such as an LM guide or a cylinder may be used. Furthermore, by moving one or both of the clamp pieces 2i along the guide rail 11 with the corner 2a as the center, the clamp 2 can be adjusted in angle in the horizontal plane.

The manufacturing method of the glass article of this embodiment includes a preparation step and a cutting step as steps before performing the stripping step.

In the preparation step, first, as shown in FIG. 14 , the original glass film 4A on the upper layer side is directly attached to the original supporting glass substrate 3A on the lower layer side. In this case, the four sides 3Aa of the original supporting glass substrate 3A extend outward from the four sides 4Aa of the original glass film 4A. After that, a transparent conductive film (e.g., an ITO film) is formed on the original glass film 4A, and the film is patterned by etching or the like. In this way, the original glass laminate 1A is obtained.

In the cutting step, the original glass laminate 1A is cut into a plurality of pieces (nine pieces in the example) along the dotted line L shown in the figure by laser or the like. A glass laminate 1 (glass laminate 1 shown in FIGS. 1 and 2 ) is obtained by taking out one piece in the center from the plurality of pieces after the cutting. The stripping step is performed on the glass laminate 1.

Furthermore, the glass film 4 peeled off from the glass laminate 1 in the peeling step is a glass article as an electronic component material. Therefore, the meaning of the manufacturing method of the glass article described above is the same as the manufacturing method of the electronic component.

Next, another example of the method for manufacturing the electronic device according to the present embodiment will be described.

In the preparation step of the manufacturing method, first, by directly attaching the original glass film 4A to the original supporting glass substrate 3A, the original glass laminate 1A shown in FIG. 14 is obtained. Then, another original glass film 4A is attached to the original glass laminate 1A. After that, by performing a process of sealing liquid crystal between the original glass film 4A and another original glass film 4A above it and other necessary processes, the original liquid crystal panel 12A is manufactured on the original supporting glass substrate 3A. In this way, the original glass laminate 1A shown in FIG. 15 is obtained.

In the cutting step, the original glass laminate 1A is cut into a plurality of pieces (nine pieces in the example) along the dotted line M shown in the figure by laser or the like. By taking out one piece in the center from the plurality of pieces after the cutting, a glass laminate 1 having a liquid crystal panel 12 having two glass films 4 attached to a supporting glass substrate 3 is obtained.

In the peeling step, the liquid crystal panel 12 is peeled off from the glass laminate 1. In detail, in this case, as shown in FIG. 16, the interface X is formed between the supporting glass substrate 3 and the liquid crystal panel 12, and the knife 5 is inserted into the interface X to generate the peeling starting point 6. Furthermore, in this case, the supporting glass substrate 3 and the liquid crystal panel 12 may be reversed up and down to generate the peeling starting point 6. Then, by completing the peeling step, the liquid crystal panel 12 used in the manufacture of electronic components such as liquid crystal displays can be obtained.

In this manufacturing method, after the original glass laminate 1A shown in FIG. 15 is manufactured, another original supporting glass substrate 3A is directly attached to the original glass film 4A on the upper side of the original liquid crystal panel 12A. In this case, in the peeling step, the supporting glass substrate 3 is first peeled off from the glass laminate 1 obtained through the same cutting step as described above. If described in detail, in this case, as shown in FIG. 17, the upper supporting glass substrate 3 and the liquid crystal panel 12 become an interface X, and the knife 5 is inserted into the interface X, thereby generating a peeling starting point 6. After the peeling operation is completed, the liquid crystal panel 12 is peeled off in the state shown in Figure 16 (or the state of upside down). In this case, the height position of the guide surface 2f of the clamp 2 is changed.

Furthermore, in the above-mentioned embodiment, the glass film 4 is directly attached to the supporting glass substrate 3, but a film 13 as shown in FIG. 18 may be interposed between the supporting glass substrate 3 and the glass film 4. The film 13 is an organic film or an inorganic film, and its thickness is less than 1 μm. In the peeling step at this time, as shown in the figure, the upper surface of the film 13 and the lower surface of the glass film 4 form an interface X, and a peeling starting point 6 is generated by a knife 5. Furthermore, the interface X may be between the lower surface of the film 13 and the upper surface of the supporting glass substrate 3, or may be any position between the lower surface of the glass film 4 and the upper surface of the supporting glass substrate 3.

In addition, in the embodiment, as shown in FIG. 17 , the liquid crystal panel 12 and the supporting glass substrate 3 are also directly attached, but as shown in FIG. 19 , a film 13 as described above may be interposed between the liquid crystal panel 12 and the supporting glass substrate 3. In the peeling step at this time, as shown in the figure, the lower surface of the upper film 13 and the upper surface of the liquid crystal panel 12 form a first interface X1, and the upper surface of the lower film 13 and the lower surface of the liquid crystal panel 12 form a second interface X2. The figure illustrates a mode in which a peeling starting point 6 is generated for the first interface X1 using a knife 5, and a peeling starting point is generated for the second interface X2 in the same mode (or in a reversed mode). In addition, when the glass laminate 1 does not have the upper supporting glass substrate 3, the peeling starting point portion is generated in the same manner (or in a reversed manner).

The clamp 2 of the embodiment has two sides 2b and 2c bounded by a corner 2a, but as shown in FIG20, it may also be along a straight line without a corner. In other words, the clamp 2 shown in the figure only extends along one side 1b of the glass laminate 1 (strictly speaking, only supports one side of the glass substrate 3). In this case, as shown in the figure, it is preferred that one side 2b of the clamp 2 extends from the corner 1a of the glass laminate 1.

In the glass laminate 1 of the embodiment, the supporting glass substrate 3 and the glass film 4 do not extend from each other over the entire circumference. However, even if one of the supporting glass substrate 3 and the glass film 4 extends from the other, the present invention can be applied in the same manner if the extending length is short. Therefore, for example, in the original glass laminate 1A shown in FIG. 14 , if the extending length of the original supporting glass substrate 3A from the original glass film 4A is short, the present invention can be applied to all of the plurality of glass laminates 1 obtained by cutting the original glass laminate 1A (the same applies to the original glass laminate 1A shown in FIG. 15 ).

The lower substrate and the upper substrate of the glass laminate 1 of the above-described embodiment are both made of glass, but either one of them may be made of other materials such as ceramics or resins, or both of them may be made of other materials such as ceramics or resins.

The glass laminate 1 of the embodiment includes one interface X or two interfaces X1, X2, but may also include three or more interfaces.

1: Glass laminate (laminate) 1A: Original glass laminate 1a: Corner of laminate 1b: Edge of laminate (edge of substrate on lower layer side/one end face) 1c: Edge of laminate (edge of substrate on lower layer side/other end face) 2: Clamp (clamp for substrate peeling) 2a: Corner of clamp 2b: Edge of clamp (one end face) 2c: Edge of clamp (other end [end face]) 2d: Edge 2e: Edge 2f: Guide surface of clamp (upper surface) 2g: Through hole 2h: Groove 2i: Clamp piece 2j: Groove 3: Supporting glass substrate (substrate on the lower side) 3A: Original supporting glass substrate (original substrate on the lower side) 3Aa: Edge 4: Glass film (substrate on the upper side) 4A: Original glass film (original substrate on the upper side) 4Aa: Edge 5: Knife 5a: Tip of knife 5b: Blade 5c: Blade root 6: Peeling start 7: Guide member 8: Base plate 9: Guide rail 10: Base plate 11: Guide rail 12: LCD panel 12A: Original LCD panel 13: Film A-A: Line a: Arrow B-B: Line C-C: Line F: Working surface L: Dotted line M: Dotted line S: gap T: gap X: interface X1: interface (first interface) X2: interface (second interface)

FIG. 1 is a perspective view of a laminate and substrate peeling jig used in a method for manufacturing a glass article according to an embodiment of the present invention. FIG. 2 is a perspective view showing an initial state during a peeling step in a method for manufacturing a glass article according to an embodiment of the present invention. FIG. 3 is a cross-sectional view (hatching omitted) showing a state of a peeling step in a method for manufacturing a glass article according to an embodiment of the present invention and corresponding to the A-A line cross-sectional view of FIG. 2. FIG. 4 is a cross-sectional view (hatching omitted) showing a state of a peeling step in a method for manufacturing a glass article according to an embodiment of the present invention and corresponding to the A-A line cross-sectional view of FIG. 2. FIG. 5 is a cross-sectional view (hatching omitted) showing the state of the peeling step in the method for manufacturing a glass article in the embodiment of the present invention, and is equivalent to the cross-sectional view of the A-A line in FIG. 2. FIG. 6 is a plan view showing the state of the peeling step in the method for manufacturing a glass article in the embodiment of the present invention. FIG. 7 is a cross-sectional view (hatching omitted) showing the state of the first variant of the peeling step in the method for manufacturing a glass article in the embodiment of the present invention, and is equivalent to the cross-sectional view of the A-A line in FIG. 2. FIG. 8 is a cross-sectional view (hatching omitted) showing the state of the second variant of the peeling step in the method for manufacturing a glass article in the embodiment of the present invention, and is equivalent to the cross-sectional view of the A-A line in FIG. 2. FIG. 9 is a perspective view showing a first variant of a substrate peeling jig used in a peeling step in a method for manufacturing a glass article in an embodiment of the present invention. FIG. 10 is a cross-sectional view cut along the B-B line of FIG. 9 . FIG. 11 is a plan view showing a second variant of a substrate peeling jig used in a peeling step in a method for manufacturing a glass article in an embodiment of the present invention. FIG. 12 is a cross-sectional view cut along the C-C line of FIG. 11 . FIG. 13 is a plan view showing a third variant of a substrate peeling jig used in a peeling step in a method for manufacturing a glass article in an embodiment of the present invention. FIG. 14 is a perspective view for explaining the preparation step and the cutting step in the manufacturing method of the glass article of the embodiment of the present invention. FIG. 15 is a perspective view for explaining the preparation step and the cutting step in the manufacturing method of the electronic component of the embodiment of the present invention. FIG. 16 is a cross-sectional view (hatching omitted) corresponding to the A-A line cross-sectional view of FIG. 2, showing the state of the peeling step in the manufacturing method of the electronic component of the embodiment of the present invention. FIG. 17 is a cross-sectional view (hatching omitted) corresponding to the A-A line cross-sectional view of FIG. 2, showing the state of the first variant of the peeling step in the manufacturing method of the electronic component of the embodiment of the present invention. FIG. 18 is a cross-sectional view (hatching omitted) showing the state of the third variant of the peeling step in the method for manufacturing a glass article according to the embodiment of the present invention, and is equivalent to the cross-sectional view along the line A-A of FIG. 2 . FIG. 19 is a cross-sectional view (hatching omitted) showing the state of the second variant of the peeling step in the method for manufacturing an electronic component according to the embodiment of the present invention, and is equivalent to the cross-sectional view along the line A-A of FIG. 2 . FIG. 20 is a perspective view showing a fourth variant of the substrate peeling jig used in the peeling step in the method for manufacturing a glass article according to the embodiment of the present invention.

1: Glass laminate

1a: Corner

1b: Edge

1c: Edge

2: Clamp

2a: Corner

2b: Edge

2c: Edge

2d:edge

2e: Edge

2f: Upper surface (guiding surface)

4: Glass film

5: Knife

5a: Knife tip

A-A: Line

a:arrow

F: Work surface

X: Interface

Claims (13)

A method for manufacturing a glass article, characterized in that it includes a peeling step, wherein when peeling the upper substrate from a laminated body in which the upper substrate is attached to the lower substrate and at least one of the two substrates is formed of glass, a knife is inserted into the interface between the two substrates to generate a peeling starting point. In the method for manufacturing the glass article, in the peeling step, a fixture having a guide surface for guiding the movement of the knife is used, so that the knife moves toward the interface in a state of contact with the guide surface. The method for manufacturing a glass article as described in claim 1, wherein the laminate and the fixture are configured so that when the tip of the knife reaches the interface, the knife is in contact with the guide surface. The method for manufacturing a glass article as described in claim 1 or 2, wherein a film having a thickness of less than 1 μm is interposed between the two substrates. A method for manufacturing a glass article as described in claim 1 or 2, wherein the two substrates of the laminate do not extend from each other over the entire circumference. A method for manufacturing a glass article as described in claim 1 or 2, wherein the height position of the guide surface of the clamp is substantially the same as or lower than the height position of the interface, and the height difference between the two is smaller than the thickness of the knife. A method for manufacturing a glass article as described in claim 1 or 2, wherein the length of the gap between the clamp and the laminate in the horizontal direction is shorter than the length of the knife along the moving direction. A method for manufacturing a glass article as described in claim 1 or 2, wherein the clamp is held so as to be able to be adjusted in the vertical direction. A method for manufacturing a glass article as described in claim 1 or 2, wherein the clamp is maintained so as to be able to adjust its position in the horizontal direction. A method for manufacturing a glass article as described in claim 1 or 2, wherein the clamp is maintained so as to be able to adjust the angle within a horizontal plane. A method for manufacturing a glass article as described in claim 1 or 2, wherein the clamp is formed along two intersecting sides of the substrate on the lower layer side. A method for manufacturing a glass article as described in claim 1 or 2, wherein before executing the peeling step, the following preparation step is performed, namely, an original laminate is obtained by attaching an original substrate on the upper side to an original substrate on the lower side and performing a process on the original substrate on the upper side, and the original laminate is cut into multiple pieces to obtain the laminate in which the original substrate on the lower side becomes the substrate on the lower side and the original substrate on the upper side becomes the substrate on the upper side. A method for manufacturing an electronic component, characterized in that it includes: a preparation step, after attaching an original glass substrate on the upper layer side to an original substrate on the lower layer side, preparing an original electronic component material including the original glass substrate, thereby obtaining an original laminate; a cutting step, by cutting the original laminate into multiple pieces, obtaining multiple laminates in which the original substrate becomes a substrate and the original electronic component material becomes an electronic component material; and a peeling step, when peeling the electronic component material from the laminate, inserting a knife into the interface between the substrate and the electronic component material to generate a peeling starting point, In the stripping step, a fixture having a guide surface for guiding the movement of the knife is used, so that the knife moves toward the interface while in contact with the guide surface. A substrate stripping jig is characterized in that it is used when a knife is inserted into the interface between the two substrates of a laminated body formed by attaching an upper substrate to a lower substrate to generate a stripping starting point. The substrate stripping jig has a guide surface that contacts the knife and guides the knife to move toward the interface.

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