KR20240027135A - Cutting device and method of manufacturing cut products - Google Patents

Abstract

The cutting device is configured to cut the object to be cut with a blade. The cutting device includes an imaging unit and a control unit. The imaging unit is configured to move relative to the dress board and capture a partial area of the dress board. The control unit is configured to control the imaging unit to sequentially image the plurality of first areas of the dress board and determine the presence or absence of a cut line in each of the plurality of first areas based on the imaging results by the imaging unit. It is done. Two adjacent first areas among the plurality of first areas are spaced apart from each other with the second area in between. The control unit determines whether a determination of the presence or absence of a cut line in the second area is necessary based on the presence or absence of a cut line in each of the plurality of first areas.

Description

Cutting device and method of manufacturing cut products

The present invention relates to a cutting device and a method of manufacturing a cut product.

Japanese Patent Laid-Open No. 2017-168575 (Patent Document 1) discloses a cutting device. In this cutting device, for example, the spindle rotation speed when dressing the cutting blade is different from the spindle rotation speed when machining the workpiece. In order to take into account the influence of bending of the cutting blade during machining of the workpiece, an alignment groove is formed on the dressing board at the spindle rotation speed during machining of the workpiece. Using this alignment groove, the cutting blade (spindle) is aligned. As a result, the influence of positional misalignment due to bending of the cutting blade during machining of the workpiece is eliminated, so the cutting position can be aligned with high precision (see Patent Document 1).

Japanese Patent Publication No. 2017-168575

In the cutting device disclosed in Patent Document 1, the alignment groove formed on the dressing board (dress board) is imaged by an imaging means. However, in Patent Document 1, a technique for detecting a dressable area of a dress board is not disclosed.

The present invention was made to solve this problem, and its purpose is to provide a cutting device capable of efficiently detecting a dressable area of a dress board and a method of manufacturing a cut product using the cutting device.

A cutting device according to an aspect of the present invention is configured to cut an object to be cut with a blade. Dressing of the blade is done using a dress board. The cutting device includes an imaging unit and a control unit. The imaging unit is configured to move relative to the dress board and capture a partial area of the dress board. The control unit is configured to control the imaging unit to sequentially image the plurality of first areas of the dress board and determine the presence or absence of a cut line in each of the plurality of first areas based on the imaging results by the imaging unit. It is done. Two adjacent first areas among the plurality of first areas are spaced apart from each other with the second area in between. The control unit determines whether a determination of the presence or absence of a cut line in the second area is necessary based on the presence or absence of a cut line in each of the plurality of first areas.

A method of manufacturing a cut product according to another aspect of the present invention is a method of manufacturing a cut product using the above-described cutting device, comprising a step of dressing a blade in an area of the dress board determined by a control unit that a cut line does not exist, and dressing the dressed It includes a step of cutting the cutting object with a blade.

According to the present invention, a cutting device capable of efficiently detecting a dressable area of a dress board and a method of manufacturing a cut product using the cutting device can be provided.

1 is a plan view schematically showing a cutting device.
Fig. 2 is a diagram schematically showing the plane of the holding member.
Figure 3 is a side view schematically showing the spindle portion.
Figure 4 is a diagram schematically showing the hardware configuration of a computer.
Figure 5 is a diagram schematically showing the plan view of an example of a dress board used for dressing several times.
Figure 6 is a diagram for explaining each detection area.
Figure 7 is a diagram schematically showing a software configuration for realizing automatic detection of unused areas.
Figure 8 is a diagram schematically showing an example of a dress board with no unused area.
Fig. 9 is a diagram schematically showing an example of a dress board with an unused area at the top.
Fig. 10 is a diagram schematically showing an example of a dress board in which an unused area exists in more than half of the area including the upper part.
Fig. 11 is a diagram schematically showing an example of a dress board with an unused area below.
Fig. 12 is a diagram schematically showing an example of a dress board with unused areas at the top and bottom.
Fig. 13 is a diagram schematically showing an example of a new dress board.
Figure 14 is a flow chart showing the preparation procedure for dressing the blade.
FIG. 15 is a flowchart showing the processing performed in step S130 in FIG. 14.
FIG. 16 is a flowchart showing the processing performed in step S220 in FIG. 15.
FIG. 17 is a flowchart showing the processing performed in step S355 in FIG. 16.

Hereinafter, an embodiment (hereinafter also referred to as “this embodiment”) regarding one aspect of the present invention will be described in detail using the drawings. In addition, the same or significant parts in the drawings are given the same reference numerals and their descriptions are not repeated. In addition, each drawing is schematically drawn with objects appropriately omitted or exaggerated for ease of understanding.

[One. composition]

<1-1. Full configuration of cutting devices>

1 is a plan view schematically showing the cutting device 1 according to this embodiment. The cutting device 1 is configured to separate the package substrate (cutting object) into a plurality of electronic components (package components) by cutting the package substrate (cutting object). In a package substrate, a substrate or lead frame on which a semiconductor chip is mounted is sealed with resin.

Examples of package substrates include Ball Grid Array (BGA) package substrate, Land Grid Array (LGA) package substrate, Chip Size Package (CSP) package substrate, Light Emitting Diode (LED) package substrate, and Quad Flat No-leaded (QFN) package substrate. A package substrate may be mentioned.

In this example, the package substrate P1 is used as the cutting object, and the cutting device 1 separates the package substrate P1 into a plurality of electronic components S1. Hereinafter, of the two surfaces of the package substrate P1, the resin-sealed surface is referred to as the mold surface, and the surface opposite to the mold surface is referred to as the ball/lead surface.

As shown in FIG. 1, the cutting device 1 includes a cutting module A1 and an inspection/storage module B1 as components. The cutting module A1 is configured to manufacture a plurality of electronic components S1 (cut products) by cutting the package substrate P1. The inspection/storage module B1 is configured to inspect each of the plurality of manufactured electronic components S1 and then store the electronic component S1 in a tray. In the cutting device 1, each component is detachable from and exchangeable with respect to other components.

The cutting module A1 mainly includes a substrate supply unit 3, a positioning unit 4, a cutting table 5, a spindle unit 6, and a transport unit 7.

The substrate supply unit 3 supplies the package substrates P1 one by one to the positioning unit 4 by pushing the package substrates P1 one by one from the magazine M1 that accommodates the plurality of package substrates P1. At this time, the package substrate P1 is arranged with the ball/lead surface facing upward.

The positioning unit 4 positions the package substrate P1 pushed out from the substrate supply unit 3 on the rail unit 4a. Afterwards, the positioning unit 4 transports the positioned package substrate P1 to the cutting table 5 .

The cutting table 5 holds and supports the package substrate P to be cut. In this example, a cutting device 1 of a twin cut table configuration with two cutting tables 5 is illustrated. The cutting table 5 includes a holding member 5a, a rotation mechanism 5b, and a moving mechanism 5c.

Fig. 2 is a diagram schematically showing the plane of the holding member 5a. The holding member 5a holds the package substrate P1 transported by the positioning portion 4 by adsorbing it from below.

As shown in FIG. 2, the holding member 5a includes a holding member main body portion 5a1 and a dress board holding portion 5a2. The holding member main body portion 5a1 has a rectangular shape in plan view and is configured to attract the package substrate P1 from below. A dress board holding portion 5a2 is integrally formed on the side surface of the holding member main body portion 5a1. The dress board holding portion 5a2 has a rectangular shape in plan view and is configured to attract the dress board 8 from below.

The dress board 8 is used for dressing the blade 6a (described later). Dressing refers to the operation of removing the bond material covering the abrasive grains on the blade 6a and protruding the abrasive grains. In other words, dressing refers to sharpening the blade 6a to eliminate clogging of the blade 6a. Dressing of the blade 6a is performed by forming a cut line on the dress board 8 with the blade 6a. For example, cutting of the package substrate P1 is performed by the dressed blade 6a. Dressing of the blade 6a will be described in detail later.

Referring again to FIG. 1, the rotation mechanism 5b is capable of rotating the holding member 5a in the θ1 direction in the drawing. The moving mechanism 5c is capable of moving the holding member 5a along the Y-axis in the drawing.

The spindle portion 6 separates the package substrate P1 into a plurality of electronic components S1 by cutting the package substrate P1. In this example, a cutting device 1 of twin spindle configuration with two spindle portions 6 is illustrated. The spindle portion 6 is movable along the X-axis and Z-axis of the drawing. Additionally, the cutting device 1 may have a single spindle configuration with one spindle portion 6.

Figure 3 is a side view schematically showing the spindle portion 6. As shown in FIG. 3, the spindle portion 6 includes a blade 6a, a rotating shaft 6c, a first flange 6d, a second flange 6e, and a fastening member 6f. I'm doing it.

The blade 6a rotates at high speed to cut the package substrate P1 and separate the package substrate P1 into a plurality of electronic components S1. The blade 6a is mounted on the rotating shaft 6c in a state sandwiched between one flange (first flange) 6d and the other flange (second flange) 6e. The first flange 6d and the second flange 6e are fixed to the rotating shaft 6c by a fastening member 6f such as a nut. The first flange 6d is also called an inner flange, and the second flange 6e is also called an outer flange.

The spindle unit 6 includes a cutting water nozzle that sprays cutting water toward the high-speed rotating blade 6a, a coolant nozzle that sprays coolant, and a cleaning water nozzle that sprays cleaning water that cleans cutting debris, etc. (all shown) (not done), etc. are prepared.

Referring again to FIG. 1, after the cutting table 5 adsorbs the package substrate P1, the package substrate P1 is imaged by the first position confirmation camera 5d, and the position of the package substrate P1 is confirmed. Confirmation using the first position confirmation camera 5d is, for example, confirmation of the position of a mark provided on the package substrate P1. The mark indicates, for example, the cutting position of the package substrate P1.

After that, the cutting table 5 moves toward the spindle portion 6 along the Y-axis in the drawing. After the cutting table 5 moves below the spindle portion 6, the package substrate P1 is cut by moving the cutting table 5 and the spindle portion 6 relative to each other. After that, the package substrate P1 is imaged by the second position confirmation camera 6b as necessary, and the position of the package substrate P1, etc. is confirmed. Confirmation using the second position confirmation camera 6b is, for example, confirmation of the cutting position and cutting width of the package substrate P1. Additionally, the second positioning camera 6b is also used for dressing the blade 6a. Details will be explained later.

After the cutting of the package substrate P1 is completed, the cutting table 5 moves in a direction away from the spindle portion 6 along the Y-axis in the figure while adsorbing the plurality of electronic components S1 that have been separated into pieces. In this moving process, the upper surface (ball/lead surface) of the electronic component S1 is cleaned and dried by the first cleaner 5e.

The conveyance unit 7 adsorbs the electronic component S1 held on the cutting table 5 from above, and conveys the electronic component S1 to the inspection table 11 of the inspection/storage module B1. In this conveyance process, the lower surface (mold surface) of the electronic component S1 is cleaned and dried by the second cleaner 7a.

The inspection/storage module B1 mainly includes an inspection table 11, a first optical inspection camera 12, a second optical inspection camera 13, a placement unit 14, and an extraction unit 15. I'm doing it. Additionally, the first optical inspection camera 12 may be provided in the cutting module A1.

The inspection table 11 holds the electronic component S1 for optical inspection of the electronic component S1. The inspection table 11 is movable along the X-axis of the drawing. Additionally, the inspection table 11 can be turned upside down. The inspection table 11 is provided with a holding member that holds the electronic component S1 by adsorbing the electronic component S1.

The first optical inspection camera 12 and the second optical inspection camera 13 image both surfaces (ball/lead surface and mold surface) of the electronic component S1. Based on the image data generated by the first optical inspection camera 12 and the second optical inspection camera 13, various inspections of the electronic component S1 are performed. Each of the first optical inspection camera 12 and the second optical inspection camera 13 is arranged near the inspection table 11 to capture images from above.

The first optical inspection camera 12 captures an image of the mold surface of the electronic component S1 transported by the transport unit 7 to the inspection table 11 . After that, the transport unit 7 places the electronic component S1 on the holding member of the inspection table 11 . After the holding member adsorbs the electronic component S1, the inspection table 11 is turned upside down. The inspection table 11 moves above the second optical inspection camera 13, and the ball/lead surface of the electronic component S1 is imaged by the second optical inspection camera 13.

In the placement unit 14, the inspected electronic component S1 is placed. The arrangement unit 14 is movable along the Y axis in the drawing. The inspection table 11 places the inspected electronic component S1 on the placement unit 14 .

The extraction unit 15 transfers the electronic component S1 placed in the placement unit 14 to a tray. Electronic component S1 is classified into a “good product” or a “defective product” based on the results of the inspection using the first optical inspection camera 12 and the second optical inspection camera 13. Based on the results of classification, the extraction unit 15 transfers each electronic component S1 to the tray 15a for good products or the tray 15b for defective products. That is, good products are stored in the good product tray 15a, and defective products are stored in the defective product tray 15b. Each of the tray 15a for good products and the tray 15b for defective products is replaced with a new tray when it is filled with the electronic component S1.

The cutting device 1 further includes a computer 50 and a monitor 20. The monitor 20 is configured to display images. The monitor 20 is comprised of a display device such as a liquid crystal monitor or an organic EL (Electro Luminescence) monitor.

The computer 50 controls each part of the cutting module A1 and the inspection/storage module B1, for example. The computer 50 includes, for example, a substrate supply unit 3, a positioning unit 4, a cutting table 5, a spindle unit 6, a transport unit 7, an inspection table 11, and a first optical inspection. The camera 12, the second optical inspection camera 13, the placement unit 14, the extraction unit 15, and the monitor 20 are controlled.

<1-2. Hardware configuration of your computer >

FIG. 4 is a diagram schematically showing the hardware configuration of the computer 50. As shown in FIG. 4, the computer 50 includes a control unit 70, an input/output I/F (interface) 90, a reception unit 95, and a storage unit 80, each of which includes , are electrically connected through a bus.

The control unit 70 includes a Central Processing Unit (CPU) 72, Random Access Memory (RAM) 74, and Read Only Memory (ROM) 76. The control unit 70 is configured to control each component within the computer 50 and each component within the cutting device 1 according to information processing.

The input/output I/F 90 is configured to communicate with each component included in the cutting device 1 via a signal line. The input/output I/F 90 is used for transmission of data from the computer 50 to each component within the cutting device 1 and reception of data transmitted from each component within the cutting device 1 to the computer 50. It is used. The reception unit 95 is configured to receive instructions from the user. The reception unit 95 is comprised, for example, of part or all of a touch panel, keyboard, mouse, and microphone.

The storage unit 80 is, for example, an auxiliary storage device such as a hard disk drive or solid state drive. The storage unit 80 is configured to store, for example, a control program 81. By executing the control program 81 by the control unit 70, various operations in the cutting device 1 are realized. When the control unit 70 executes the control program 81, the control program 81 is expanded to RAM 74. Then, the control unit 70 controls each component by interpreting and executing the control program 81 developed in the RAM 74 by the CPU 72.

<1-3. Software configuration for automatic detection of dressable areas >

As described above, in the cutting device 1, dressing of the blade 6a is performed. When dressing the blade 6a, a new dress board 8 is not always used. For example, there are cases where the dress board 8, which has already been used for dressing several times, is used for dressing.

Fig. 5 is a diagram schematically showing the plan view of an example of a dress board 8 used for dressing several times. As shown in Fig. 5, a plurality of cut lines CL1 are already formed on the dress board 8. Each cut line CL1 is a groove formed when the blade 6a cuts the dress board 8 during dressing. Dressing of the blade 6a needs to be performed in an area of the dress board 8 where the cut line CL1 is not formed (hereinafter also referred to as an “unused area”).

In order to perform dressing in an unused area, the operator visually confirms the position of the cut line CL1 on the dress board 8, and the operator manually determines the relative position of the blade 6a and the dress board 8. You can think about making adjustments. However, this method requires a lot of labor and time.

In the cutting device 1, the unused area is automatically detected, and the starting position of dressing on the dress board 8 is automatically determined based on the detection result. Therefore, according to the cutting device 1, there is no need for the operator to manually adjust the relative positions of the blade 6a and the dress board 8, so dressing of the blade 6a can be performed efficiently.

In the cutting device 1, detection of the unused area is performed by using the second positioning camera 6b provided in the spindle portion 6. The second positioning camera 6b is configured to move relative to the dress board 8 and capture images of a partial area of the dress board 8. In the cutting device 1, the position information of the area (detection area) of the dress board 8 to be imaged by the second position confirmation camera 6b before starting dressing is stored in advance in the storage unit 80. In the cutting device 1, for example, positional information on 13 detection areas is stored in the storage unit 80. Additionally, the number of detection areas is not limited to this. In the cutting device 1, the unused area is detected based on the image captured by the second positioning camera 6b.

Figure 6 is a diagram for explaining each detection area. As shown in FIG. 6, the first detection area D11-D13, the second detection area D21-D25, and D31-D35 are provided as detection areas in the dress board 8. The positional information of each detection area is stored in the storage unit 80.

Each of the first detection area D11-D13 and the second detection areas D21-D25 and D31-D35 is located in a straight line on the diagonal line of the dress board 8. The first detection area D11 is a detection area located in the lower left corner of the dress board 8 in the figure. The first detection area D12 is a detection area located at the center of the dress board 8 in the figure. The first detection area D13 is a detection area located in the upper right corner of the dress board 8 in the figure. In a state where the dress board 8 is held by the dress board holding portion 5a2, the left and right directions of the dress board 8 correspond to the It corresponds to the Y-axis direction of 1. The up, down, left and right directions of the dress board 8 are common in this specification.

Among the first detection areas D11 - D13, the first detection area D11 and the first detection area D12, which are adjacent to each other, are spaced apart from each other with the second detection area D21 - D25 in between. Among the first detection areas D11-D13, the first detection areas D12 and D13, which are adjacent to each other, are spaced apart from each other with the second detection areas D31-D35 in between. Each detection area is arranged so as not to overlap as much as possible. In this example, the first detection area D12 overlaps the second detection areas D25 and D31, but the detection areas do not overlap in other parts.

For example, each detection area (first detection area and second detection area) is sequentially selected from the detection area (first detection area D11) at the bottom left of the dress board 8 toward the detection area (first detection area D13) at the top right. Let us assume that the presence or absence of the cut line CL1 in (including) is determined. When the presence or absence of the cut line CL1 in each detection area is determined through these procedures, for example, when the unused area exists only above the dress board 8, detection of the unused area requires a long time.

In the cutting device 1, first, captured images for each of the first detection areas D11-D13 are acquired, and the presence or absence of the cut line CL1 in each of the first detection areas D11-D13 is determined by determining the presence or absence of the cut line CL1 in each of the first detection areas D11-D13. It is determined based on the captured image. Then, based on the presence or absence of the cut line CL1 in each of the first detection areas D11-D13, it is determined whether the presence or absence of the cut line CL1 in the second detection areas D21-D25 and D31-D35 is necessary. Therefore, according to this cutting device 1, it is predicted where on the dress board 8 an unused area exists by first determining the presence or absence of a cut line CL1 in each of the plurality of first detection areas, Since the area where the unused area is likely to exist can be examined in more detail, the unused area can be detected efficiently. The software configuration for realizing these functions is explained next.

Figure 7 is a diagram schematically showing a software configuration for realizing automatic detection of unused areas. Referring to FIG. 7, for example, by executing the control program 81 in the computer 50, the acquisition unit 51, the determination unit 52, the decision unit 53, the camera control unit 54, and the spindle unit. Each of the back control section 55 and the monitor control section 56 is realized.

The acquisition unit 51 is configured to acquire, for example, each captured image of the first detection areas D11, D12, and D13 from the second positioning camera 6b. The determination unit 52 determines the presence or absence of the cut line CL1 in each of the first detection areas D11, D12, and D13, based on the captured image acquired by the acquisition unit 51.

When the cut line CL1 exists in any of the first detection areas D11, D12, and D13, the determination unit 52 also determines whether the direction of the cut line CL1 is correct. In addition, in the cutting device 1, the cut line CL1 extending in the left and right directions of the dress board 8 is the cut line CL1 extending in the correct direction. In the cutting device 1, since each of the first detection areas D11, D12, and D13 is provided on a diagonal line of the dress board 8, it can be determined whether the direction of the cut line CL1 is correct.

For example, let us assume that the first detection areas D11, D12, and D13 are provided below the center, in the center, and above the center of the dress board 8, respectively. In this case, for example, the cut line CL1 extending in the vertical direction on the left side of the dress board 8 cannot be detected. In the cutting device 1, since each of the first detection areas D11, D12, and D13 is provided on the diagonal line of the dress board 8, the cut line CL1 extending in this vertical direction can be detected.

The decision unit 53 gives instructions to each of the camera control unit 54, the spindle unit, etc. control unit 55, and the monitor control unit 56, based on the decision result in the determination unit 52. The camera control unit 54, the spindle unit etc. control unit 55, and the monitor control unit 56 respectively control the second positioning camera 6b, the spindle unit 6, etc., and the monitor 20 according to instructions. Next, what decision is made by the decision unit 53 according to the decision pattern made by the decision unit 52 will be explained.

Fig. 8 is a diagram schematically showing an example of the dress board 8 with no unused area. As shown in FIG. 8, in the dress board 8, a cut line CL1 is formed in each of the first detection areas D11, D12, and D13. In this case, since there is no unused area in the dress board 8, the decision unit 53 determines not to determine the presence or absence of the cut line CL1 in each second detection area. Then, the decision unit 53 instructs the monitor control unit 56 to display a message urging replacement of the dress board 8 on the monitor 20.

FIG. 9 is a diagram schematically showing an example of the dress board 8 with an unused area on the upper side. As shown in FIG. 9, in the dress board 8, a cut line CL1 is formed in each of the first detection areas D11 and D12, while a cut line CL1 is not formed in the first detection area D13. not. In this case, since an unused area exists above the dress board 8, the determination unit 53 determines the presence or absence of the cut line CL1 in order from the second detection area D31 to the second detection area D35 (FIG. 6). Decide on the purpose of the decision.

That is, since it has been determined that the cut line CL1 exists in each of the adjacent first detection areas D11 and D12, the decision unit 53 determines the presence or absence of the cut line CL1 in the second detection areas D21-D25. Decide not to do it. In addition, since the determination unit 53 determines that the cut line CL1 exists in the first detection area D12 and also determines that the cut line CL1 does not exist in the first detection area D13, the first detection areas adjacent to each other are determined. It is determined that the presence or absence of the cut line CL1 in the second detection area D31-D35 between the areas D12 and D13 is determined.

Then, the determination unit 53 instructs the control unit 55, such as the spindle unit, to relatively move the second positioning camera 6b in order from the second detection area D31 toward the second detection area D35. The spindle unit etc. control unit 55 controls the positions of the cutting table 5 and the spindle unit 6 according to instructions, for example. The determination unit 53 also instructs the camera control unit 54 to capture images to the second positioning camera 6b in order from the second detection area D31 to the second detection area D35.

For example, when detecting an unused area sequentially from the second detection area D31 to the second detection area D35, if an unused area of sufficient area is detected along the way, detection in the second detection area ends halfway. . Thereby, dressing of the blade 6a can be started earlier. In addition, an unused area of sufficient size is, for example, an unused area of a size required for dressing the blade 6a. For example, when the user can set the number of cut lines CL1 to be formed in dressing, the area of the unused area required to form that number of cut lines CL1 may be the area of the unused area required for dressing.

FIG. 10 is a diagram schematically showing an example of the dress board 8 in which an unused area exists in more than half of the area including the upper part. As shown in FIG. 10, in the dress board 8, a cut line CL1 is formed in the first detection area D11, while a cut line CL1 is not formed in each of the first detection areas D12 and D13. not. In this case, since an unused area exists in more than the upper half of the dress board 8, the decision unit 53 determines the presence or absence of the cut line CL1 in order from the second detection area D21 to the second detection area D25. Decide what you want to do.

That is, since the decision unit 53 has determined that the cut line CL1 does not exist in each of the adjacent first detection areas D12 and D13, it determines the presence or absence of the cut line CL1 in the second detection areas D31-D35. It is decided not to make a decision. In addition, since the decision unit 53 determines that the cut line CL1 exists in the first detection area D11 and also determines that the cut line CL1 does not exist in the first detection area D12, the first detection areas adjacent to each other are determined. It is determined that the presence or absence of the cut line CL1 in the second detection area D21-D25 between the areas D11 and D12 is determined.

Then, the determination unit 53 instructs the control unit 55, such as the spindle unit, to relatively move the second positioning camera 6b in order from the second detection area D21 toward the second detection area D25. The spindle unit etc. control unit 55 controls the positions of the cutting table 5 and the spindle unit 6 according to instructions, for example. The determination unit 53 further instructs the camera control unit 54 to capture images to the second positioning camera 6b in order from the second detection area D21 to the second detection area D25. For example, when detecting an unused area sequentially from the second detection area D21 to the second detection area D25, if an unused area of sufficient area is detected along the way, detection in the second detection area ends halfway. .

FIG. 11 is a diagram schematically showing an example of the dress board 8 with an unused area below. As shown in FIG. 11, in the dress board 8, the cut line CL1 is not formed in the first detection area D11, while the cut line CL1 is formed in each of the first detection areas D12 and D13. there is. In this case, since an unused area exists below the dress board 8, the determination unit 53 determines the presence or absence of the cut line CL1 in order from the second detection area D21 to the second detection area D25. decide

That is, since it has been determined that the cut line CL1 exists in each of the adjacent first detection areas D12 and D13, the decision unit 53 determines the presence or absence of the cut line CL1 in the second detection areas D31-D35. Decide not to do it. In addition, since the decision unit 53 determines that the cut line CL1 does not exist in the first detection area D11 and also determines that the cut line CL1 exists in the first detection area D12, the first detection areas adjacent to each other are determined. It is determined that the presence or absence of the cut line CL1 in the second detection area D21-D25 between the areas D11 and D12 is determined.

Then, the determination unit 53 instructs the control unit 55, such as the spindle unit, to relatively move the second positioning camera 6b in order from the second detection area D21 toward the second detection area D25. The spindle unit etc. control unit 55 controls the positions of the cutting table 5 and the spindle unit 6 according to instructions, for example. The determination unit 53 further instructs the camera control unit 54 to capture images to the second positioning camera 6b in order from the second detection area D21 to the second detection area D25. For example, when detecting an unused area sequentially from the second detection area D21 to the second detection area D25, if an unused area of sufficient area is detected along the way, detection in the second detection area ends halfway. .

FIG. 12 is a diagram schematically showing an example of the dress board 8 with unused areas at the top and bottom. As shown in FIG. 12, in the dress board 8, the cut line CL1 is not formed in each of the first detection areas D11 and D13, while the cut line CL1 is formed in the first detection area D12. there is. In this case, since unused areas exist above and below the dress board 8, the determination unit 53 first cuts the cut line CL1 in order from the second detection area D21 to the second detection area D25. The purpose of determining the presence or absence of .

Then, the determination unit 53 instructs the control unit 55, such as the spindle unit, to relatively move the second positioning camera 6b in order from the second detection area D21 toward the second detection area D25. The spindle unit etc. control unit 55 controls the positions of the cutting table 5 and the spindle unit 6 according to instructions, for example. The determination unit 53 further instructs the camera control unit 54 to capture images to the second positioning camera 6b in order from the second detection area D21 to the second detection area D25.

For example, when detecting an unused area sequentially from the second detection area D21 to the second detection area D25, if an unused area of sufficient area is detected along the way, detection in the second detection area ends halfway. . On the other hand, when an unused area of sufficient area is not detected in the first detection area D11 and the second detection area D21-D25, the determination unit 53 moves from the second detection area D31 toward the second detection area D35. The purpose of determining the presence or absence of the cut line CL1 is determined in turn.

Then, the determination unit 53 instructs the control unit 55, such as the spindle unit, to relatively move the second positioning camera 6b in order from the second detection area D31 toward the second detection area D35. The spindle unit etc. control unit 55 controls the positions of the cutting table 5 and the spindle unit 6 according to instructions, for example. The determination unit 53 also instructs the camera control unit 54 to capture images to the second positioning camera 6b in order from the second detection area D31 to the second detection area D35. For example, when detecting an unused area sequentially from the second detection area D31 to the second detection area D35, if an unused area of sufficient area is detected along the way, detection in the second detection area ends halfway. .

Fig. 13 is a diagram schematically showing an example of a new dress board 8. As shown in Fig. 13, in the dress board 8, the cut line CL1 is not formed in each of the first detection areas D11 to D13. In this case, since the dress board 8 is new, the decision unit 53 determines not to determine the presence or absence of the cut line CL1 in each second detection area. Then, the determination unit 53 determines the starting position of dressing of the blade 6a as the first detection area D11 of the dress board 8.

[2. movement]

Fig. 14 is a flowchart showing the dressing preparation procedure for the blade 6a. The process shown in this flowchart is, for example, executed by the control unit 70 after the number of cut lines CL1 to be formed during dressing is set by the user and an instruction to start dressing is given by the user.

Referring to FIG. 14, the control unit 70 allows the second positioning camera 6b to capture images of the first detection area D11 (FIG. 6) among the dress boards 8 installed on the dress board holding portion 5a2. The relative position of the second positioning camera 6b is controlled so as to be controlled. For example, the control unit 70 controls the relative position of the second positioning camera 6b by controlling the respective positions of the cutting table 5 and the spindle unit 6. And the control unit 70 controls the second positioning camera 6b to image the first detection area D11 (step S100).

The control unit 70 controls the relative position of the second positioning camera 6b so that the second positioning camera 6b can image the first detection area D12. The control unit 70 controls the second positioning camera 6b to image the first detection area D12 (step S110). The control unit 70 controls the relative position of the second positioning camera 6b so that the second positioning camera 6b can image the first detection area D13. The control unit 70 controls the second positioning camera 6b to image the first detection area D13 (step S120).

The control unit 70 executes processing based on the imaging results in each of the first detection areas D11, D12, and D13 (step S130). The processing in step S130 will be explained in detail later. The control unit 70 determines whether the start position of the dress cut (dressing) has been determined as a result of the processing in step S130 (step S140).

When it is determined that the start position of the dress cut is determined (YES in step S140), the control unit 70 controls the spindle unit 6 to start the dress cut from the determined start position (step S150) . On the other hand, if it is determined that the start position of the dress cut is not determined (“No” in step S140), the control unit 70 sends a message urging the user to replace the dress board 8 (the dress board 8). The monitor 20 is controlled to output a message (including a message urging the user to adjust the direction) (step S160).

FIG. 15 is a flowchart showing the processing performed in step S130 in FIG. 14. Referring to FIG. 15, the control unit 70 determines whether the cut line CL1 is detected in any of the first detection areas D11, D12, and D13 (step S200).

If it is determined that the cut line CL1 is not detected in any of the first detection areas D11, D12, and D13 (“No” in step S200), the process proceeds to step S220. On the other hand, when it is determined that the cut line CL1 is detected in any of the first detection areas D11, D12, and D13 (“Yes” in step S200), the control unit 70 detects the image captured by the second positioning camera 6b. Based on this, it is determined whether the direction of the detected cut line CL1 is correct (step S210).

If it is determined that the direction of the cut line CL1 is correct (“YES” in step S210), the control unit 70 executes a process for determining the dress cut position (step S220). The processing in step S220 will be explained in detail later. On the other hand, if it is determined that the direction of the cut line CL1 is incorrect (“No” in step S210), the control unit 70 displays a message on the monitor 20 urging the user to adjust the direction of the dress board 8. After determining that, the process shown in this flow chart is terminated.

FIG. 16 is a flowchart showing the processing performed in step S220 in FIG. 15. Referring to FIG. 16, the control unit 70 determines whether a cut line CL1 is formed in the first detection area D11 based on the captured image in the first detection area D11 (step S300).

If it is determined that the cut line CL1 is formed in the first detection area D11 (“Yes” in step S300), the control unit 70 determines the first detection area D12 based on the captured image in the first detection area D12. It is determined whether the cut line CL1 is formed (step S305). If it is determined that the cut line CL1 is formed in the first detection area D12 (YES in step S305), the control unit 70 determines the first detection area D13 based on the captured image in the first detection area D13. It is determined whether the cut line CL1 is formed (step S310). If it is determined that the cut line CL1 is formed in the first detection area D13 (“Yes” in step S310), the control unit 70 sends a message to the monitor 20 urging the user to replace the dress board 8. What to display is determined (step S315).

In step S310, if it is determined that the cut line CL1 is not formed in the first detection area D13 (“No” in step S310), the control unit 70 moves the cut line CL1 from the second detection area D31 to the second detection area D35 (Figure 6), the cut line CL1 is detected (step S320). That is, the control unit 70 detects the unused area from the second detection area D31 toward the second detection area D35. For example, detection of this unused area ends when an unused area of the required size is detected. When an unused area of the required area is detected, the control unit 70 determines the start position of the dress cut in the unused area (step S325).

In step S305, if it is determined that the cut line CL1 is not formed in the first detection area D12 (“No” in step S305), the control unit 70 moves from the second detection area D21 toward the second detection area D25. The unused area is detected (step S330). For example, detection of this unused area ends when an unused area of the required size is detected. When an unused area of the required area is detected, the control unit 70 determines the start position of the dress cut in the unused area (step S325).

In step S300, if it is determined that the cut line CL1 is not formed in the first detection area D11 (“No” in step S300), the control unit 70 determines whether the cut line CL1 is formed in the first detection area D12. It is determined whether or not (step S335). If it is determined that the cut line CL1 is not formed in the first detection area D12 (“No” in step S335), the control unit 70 determines the first detection area D11 as the start position of the dress cut (step S340) .

In step S335, if it is determined that the cut line CL1 is formed in the first detection area D12 (YES in step S335), the control unit 70 determines whether the cut line CL1 is formed in the first detection area D13. is determined (step S345). When it is determined that the cut line CL1 is formed in the first detection area D13 (“Yes” in step S345), the control unit 70 detects an unused area from the second detection area D21 toward the second detection area D25 ( Step S350). For example, detection of this unused area ends when an unused area of the required size is detected. When an unused area of the required area is detected, the control unit 70 determines the start position of the dress cut in the unused area (step S325).

If it is determined in step S345 that the cut line CL1 is not formed in the first detection area D13 (“No” in step S345), the control unit 70 performs detection processing of the cut line CL1 (step S355) . That is, the control unit 70 performs detection processing of the unused area.

FIG. 17 is a flowchart showing the processing performed in step S355 in FIG. 16. Referring to FIG. 17, the control unit 70 detects an unused area from the second detection area D21 to the second detection area D25 (step S400). The control unit 70 determines whether an unused area of the required area has been detected (step S410). If it is determined that an unused area of the required area has been detected (YES in step S410), the control unit 70 determines the start position of the dress cut in the unused area (step S420).

On the other hand, if it is determined in step S410 that an unused area of the required area is not detected (“No” in step S410), the control unit 70 moves the unused area from the second detection area D31 toward the second detection area D35. Detect (step S430). The control unit 70 determines whether an unused area of the required area has been detected (step S440). If it is determined that an unused area of the required area has been detected (YES in step S440), the control unit 70 determines the start position of the dress cut in the unused area (step S420). On the other hand, if it is determined that an unused area of the required size is not detected (“No” in step S440), the control unit 70 displays a message on the monitor 20 urging the user to replace the dress board 8. After determining that, the process shown in this flowchart is terminated.

[3. characteristic]

As described above, in the cutting device 1 according to the present embodiment, the control unit 70 controls the second positioning camera 6b to sequentially image the first detection areas D11, D12, and D13, Based on the imaging results by the second positioning camera 6b, the presence or absence of the cut line CL1 in each of the first detection areas D11, D12, and D13 is determined. Then, the control unit 70 determines the presence or absence of the cut line CL1 in the second detection areas D21-D25 and D31-D35 based on the presence or absence of the cut line CL1 in each of the first detection areas D11, D12, and D13. Decide whether a decision is necessary. According to this cutting device 1, by first determining the presence or absence of the cut line CL1 in each of the plurality of first detection areas, it is predicted where on the dress board 8 an unused area exists, and the unused area is Since the area where there is a high possibility of presence can be examined in more detail, the unused area can be detected efficiently.

In addition, the cutting device 1 is an example of a “cutting device” in the present invention. The blade 6a is an example of a “blade” in the present invention, and the package substrate P1 is an example of a “cutting object” in the present invention. The dress board 8 is an example of a “dress board” in the present invention. The second positioning camera 6b is an example of the “imaging unit” in the present invention. The control unit 70 is an example of a “control unit” in the present invention. Each of the first detection areas D11, D12, and D13 is an example of a “first area” in the present invention, and each of the second detection areas D21-D25 and D31-D35 is an example of a “second area” in the present invention. This is an example of The monitor 20 is an example of a “display unit” in the present invention. Electronic component S1 is an example of a “cut product” in the present invention.

[4. Other Embodiments]

The idea of the above embodiment is not limited to the embodiment described above. Hereinafter, an example of another embodiment to which the spirit of the above embodiment can be applied will be described.

<4-1>

In the above embodiment, the respective positions of the cutting table 5 and the spindle portion 6 were controlled in order to control the relative positions of the second positioning camera 6b and the dress board 8. However, the relative positions of the second positioning camera 6b and the dress board 8 may be controlled by controlling the position of either the cutting table 5 or the spindle portion 6.

<4-2>

Additionally, in the above embodiment, the dress board 8 was installed on the dedicated dress board holding portion 5a2. However, the installation position of the dress board 8 is not limited to this. For example, the dress board 8 may be installed on the holding member main body portion 5a1 when dressing the blade 6a. Additionally, in this case, a dedicated installation jig may be used to improve the positional accuracy of the dress board 8 in the holding member main body portion 5a1.

<4-3>

Additionally, in the above embodiment, the detection of the unused area in the second detection areas D21-D25 and D31-D35 was completed when the unused area of the required area was detected. However, the detection of the unused area in the second detection areas D21-D25 and D31-D35 does not necessarily end when the unused area of the required area is detected. For example, when detecting the unused area in the second detection area D21-D25, even if the unused area is detected in all of the second detection areas D21-D25, regardless of whether the unused area of the required area is detected. do. Additionally, when detecting the unused area in the second detection areas D31-D35, the unused area may be detected in all of the second detection areas D21-D25, regardless of whether the unused area of the required area is detected.

<4-4>

In addition, when the cut line CL1 is not detected in the first detection areas D11 and D13 and the cut line CL1 is detected only in the first detection area D12 (FIG. 12), it is said that an abnormality has occurred in the dress board 8. It may be judged. In this case, for example, a message urging the user to exchange the dress board 8 may be displayed on the monitor 20.

<4-5>

In addition, in the above embodiment, the number of cut lines CL1 to be formed on the dress board 8 in the dress cut is set by the user. However, in dress cutting, the number of cut lines CL1 to be formed on the dress board 8 does not necessarily have to be set by the user. In dress cutting, the number of cut lines CL1 to be formed on the dress board 8 may be automatically determined by the computer 50, for example.

Moreover, in the above-described embodiment, the cutting device 1 may further be provided with a replacement mechanism for automatically replacing the dress board 8 held by the dress board holding portion 5a2. In this case, for example, in step S160 of FIG. 14, the control unit 70 may transmit a control signal for replacing the dress board 8 held by the dress board holding portion 5a2 to the replacement mechanism. . As a result, the dress board 8 held by the dress board holding portion 5a2 is automatically replaced by the exchange mechanism.

Above, embodiments of the present invention have been described by way of example. That is, for illustrative purposes, the detailed description and attached drawings have been disclosed. Therefore, among the components described in the detailed description and attached drawings, components that are not essential for solving the problem may be included. Therefore, just because these non-essential components are described in the detailed description and attached drawings, these non-essential components should not be recognized as essential.

In addition, the above embodiment is merely an example of the present invention in all respects. The above embodiments can be modified and modified in various ways within the scope of the present invention. That is, in implementing the present invention, specific configurations can be appropriately adopted depending on the embodiment.

1: Cutting device
3: Substrate supply section
4: Positioning unit
4a: rail part
5: cutting table
5a: Retention support member
5a1: Holding support member body portion
5a2: Dress board holding support portion
5b: Rotating mechanism
5c: Movement mechanism
5d: First positioning camera
5e: First Cleaner
6: Spindle part
6a: blade
6b: Second positioning camera
6c: rotation axis
6d: first flange
6e: second flange
6f: fastening member
7: Transport department
7a: second cleaner
8: dress board
11: Inspection table
12: First optical inspection camera
13: Second optical inspection camera
14: Placement part
15: extraction unit
15a: Tray for good quality products
15b: Tray for defective products
20: monitor
50: computer
51: Acquisition Department
52: Judgment panel
53: decision part
54: Camera control unit
55: Control unit, such as spindle unit
56: monitor control unit
70: control unit
72:CPU
74: RAM
76: ROM
80: memory unit
81: Control program
90: Input/output I/F
95: Reception desk
A1: Cutting module
B1: Inspection/storage module
CL1: Cut line
D11, D12, D13: First detection area
D21, D22, D23, D24, D25, D31, D32, D33, D34, D35: Second detection area
M1: Magazine
P1: Package substrate
S1: Electronic components

Claims (10)

A cutting device configured to cut a cutting object by a blade, comprising:
Dressing of the blade is done by using a dress board,
The cutting device,
an imaging unit configured to move relative to the dress board and image a partial area of the dress board;
Control the imaging unit to sequentially image a plurality of first areas of the dress board, and determine the presence or absence of a cut line in each of the plurality of first areas based on the imaging results by the imaging unit. It has a control unit configured,
Two adjacent first areas among the plurality of first areas are spaced apart from each other with a second area in between,
The cutting device wherein the control unit determines whether a determination of the presence or absence of the cut line in the second area is necessary based on the presence or absence of the cut line in each of the plurality of first areas. According to paragraph 1,
The cutting device wherein the control unit does not determine the presence or absence of the cut line in the second area when it is determined that the cut line exists in each of the plurality of first areas. According to claim 1 or 2,
The cutting device wherein the control unit does not determine the presence or absence of the cut line in the second area when it is determined that the cut line does not exist in each of the plurality of first areas. According to any one of claims 1 to 3,
When it is determined that the cut line exists in each of the two adjacent first areas, the control unit determines the cut line in the second area between the two adjacent first areas. A cutting device that does not determine the presence or absence of . According to any one of claims 1 to 4,
When it is determined that the cut line does not exist in each of the two adjacent first areas, the control unit determines that the cut line in the second area between the two adjacent first areas A cutting device that does not determine the presence or absence of a line. According to any one of claims 1 to 5,
The control unit determines that the cut line exists in one first area of the two adjacent first areas, and further determines that the cut line exists in the other first area of the two adjacent first areas. A cutting device that determines the presence or absence of the cut line in the second area between the two adjacent first areas when it is determined that it does not exist. According to clause 6,
The determination of the presence or absence of the cut line in the second area ends when an area of a predetermined area in which the cut line does not exist is detected,
The predetermined area is a cutting device that is required for dressing the blade. According to any one of claims 1 to 7,
The shape of the dress board when viewed in plan is a rectangular shape,
Each of the plurality of first regions is located diagonally on the dress board. According to clause 8,
further comprising a display unit configured to display an image,
The cutting device wherein the control unit determines whether the direction of the cut line in each of the plurality of first areas is correct, and controls the display unit to display a message when it is determined that the direction is incorrect. A method of manufacturing a cut product using the cutting device according to any one of claims 1 to 9,
a step of dressing the blade in an area of the dress board where it is determined by the control unit that the cut line does not exist;
A method of manufacturing a cut product, comprising a step of cutting the cutting object with the dressed blade.

Images