Component crimping device and control method for component crimping device

Abstract

To provide a component press-mounting device or the like capable of detecting performance degradation of a static elimination part at an early stage.SOLUTION: A component press-mounting device 100 is used for press-mounting a component 300 to a base plate 200. The component press-mounting device 100 includes: a charge amount measuring part 140 for measuring a charge amount of a predetermined area within the component press-mounting device 100; a static elimination part 150 for supplying ionized air to the predetermined area; and a determination unit 160 for determining the existence of abnormality in the static elimination part 150 based on the measured amount measured by the charge amount measuring part 140.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a component crimping device and a method for controlling the component crimping device. [Background technology]

[0002] Conventionally, there is a component bonding device that bonds components to a substrate (see, for example, Patent Document 1). A bonding device, which is an example of the component bonding device disclosed in Patent Document 1, includes a charge amount measuring device that measures the charge amount of a carrier tape or the like, and a static electricity removing device (static elimination unit) that removes static electricity from the carrier tape or the like. The bonding device disclosed in Patent Document 1, for example, stops the bonding operation of the bonding device depending on the charge amount measurement result of the charge amount measuring device.

[0003] According to this, even if the static eliminator is not able to properly remove static electricity from the carrier tape or the like, the bonding operation is stopped before the static electricity causes damage to components or the like. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 4-49632 Summary of the Invention [Problem to be solved by the invention]

[0005] As described above, deterioration in the performance of the static eliminator can lead to destruction of components and the like due to static electricity, so it is desirable to detect this early.

[0006] The present invention provides a component crimping device and the like that can detect performance degradation of a static eliminator at an early stage. [Means for solving the problem]

[0007] A component crimping device according to one embodiment of the present invention is a component crimping device that crimps a component onto a substrate, and includes a charge amount measuring unit that measures the charge amount in a predetermined area within the component crimping device, a static eliminator that supplies ionized air to the predetermined area, and a judgment unit that judges whether or not there is an abnormality in the static eliminator based on the measurement value measured by the charge amount measuring unit.

[0008] Furthermore, a control method for a component crimping device according to one aspect of the present invention is a control method for a component crimping device that crimps a component onto a substrate, and includes a charge amount measurement step of measuring the charge amount in a predetermined area within the component crimping device, a charge removal step of supplying ionized air to the predetermined area by a charge removal unit, and a determination step of determining whether or not there is an abnormality in the charge removal unit based on the measurement value measured in the charge amount measurement step.

[0009] These comprehensive or specific aspects may be realized as a system, a method, an integrated circuit, a computer program, or a computer-readable recording medium such as a CD-ROM, or may be realized as any combination of a system, a method, an integrated circuit, a computer program, and a recording medium. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a component crimping device and the like that can detect performance degradation of a static eliminator at an early stage. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic diagram showing a component crimping device according to an embodiment. [Figure 2] FIG. 2 is a block diagram showing the functional configuration of the component crimping device according to the embodiment. [Figure 3] FIG. 3 is a diagram showing a specific example of the measurement result of the charge amount measurement unit according to the embodiment. [Figure 4] FIG. 4 is a flowchart showing the processing procedure of the component crimping device according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] Below, a component crimping device and the like according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that each of the embodiments described below represents a specific example of the present invention. Therefore, the numerical values, shapes, materials, components, component arrangements and connection forms, steps, and step sequences shown in the following embodiments are merely examples and are not intended to limit the present invention. Therefore, among the components in the following embodiments, components that are not described in the independent claims that represent the highest concept of the present invention will be described as optional components.

[0013] In addition, each drawing is a schematic diagram and is not necessarily an exact illustration. In addition, the same components are denoted by the same reference numerals in each drawing.

[0014] (Embodiment) [composition] First, the configuration of the component crimping device according to the embodiment will be described.

[0015] FIG. 1 is a schematic diagram of a component crimping device 100 according to an embodiment.

[0016] In FIG. 1, the computer 90 is illustrated as a functional block.

[0017] The component pressure-bonding apparatus 100 is an apparatus that pressure-bonds a component 300 to a substrate 200. The component pressure-bonding apparatus 100 is, for example, part of a component mounting system for producing display panels or the like. In the component mounting system, for example, an attachment apparatus (not shown) attaches an anisotropic conductive film (ACF) to an electrode portion provided on the substrate 200, and a pre-pressure-bonding apparatus (not shown) pre-pressure-bonds the substrate 200 and the component 300 via the ACF. The component pressure-bonding apparatus 100 pressure-bonds the component 300 to the substrate 200 on which the component 300 has been placed (placed), which has been transported, for example, by a substrate transport apparatus (not shown) from an upstream apparatus (e.g., a pre-pressure-bonding apparatus). The substrate 200 on which the component 300 has been pressure-bonded is transported, for example, downstream of the component pressure-bonding apparatus 100 by the substrate transport apparatus.

[0018] Examples of the substrate 200 include a film-like flexible substrate made of resin or the like, or a rigid substrate such as a glass substrate.

[0019] Examples of the component 300 include electronic components such as an IC (Integrated Circuit), a TCP (Tape Carrier Package), and an FPC (Flexible Printed Circuits).

[0020] As shown in FIG. 1, the component crimping device 100 includes a sheet holding unit 20, a feed roller 21, a crimping head 50, a motor 51, a guide 52, a stage 70, a backup stage 80, a charge amount measuring unit 140, and a charge removal unit 150.

[0021] Although not shown, these components are supported by a drive mechanism for driving (moving) the components such as a guide and a motor, a support member for fixing the position, and the like.

[0022] Furthermore, these components and the drive mechanisms for driving these components are communicatively connected to a computer 90 provided in the component crimping device 100 via wireless or control lines, etc., and are controlled by the computer 90 to perform predetermined tasks.

[0023] Computer 90 is a computer that controls each of the components included in component crimping apparatus 100. Computer 90 is realized by, for example, a communication interface for communicating with each of the components included in component crimping apparatus 100, non-volatile memory in which a program is stored, volatile memory that is a temporary storage area for executing the program, input / output ports for transmitting and receiving signals, a processor that executes the program, and the like.

[0024] The sheet holding unit 20 is a reel that stores the protective sheet 400 and supplies the stored protective sheet 400. The protective sheet 400 is wound up by the rotation of the feed roller 21 and supplied below the crimping head 50.

[0025] Supplying the protective sheet 400 also means that the position of the protective sheet 400 located below the crimping head 50 changes. For example, the position of the protective sheet 400 is moved every time the crimping head 50 crimps the component 300 onto the substrate 200. In other words, the protective sheet 400 is supplied every time the crimping head 50 crimps the component 300 onto the substrate 200.

[0026] The sheet holding unit 20 is a support member that supports the protective sheet 400. In this embodiment, the protective sheet 400 is held in a rolled (wound) state by the sheet holding unit 20. The protective sheet 400 is drawn out by the feed roller 21 and supplied below the crimping head 50.

[0027] It should be noted that the protective sheet 400 does not have to be held in the sheet holding section 20 in a rolled state, but may be held in the sheet holding section 20 in a folded and stacked state, for example.

[0028] The feed roller 21 is a drive mechanism that rotates to pull the protective sheet 400 held by the sheet holding unit 20 out of the sheet holding unit 20 and supply the protective sheet 400 below the crimping head 50 .

[0029] The crimping head 50 is a head that presses the component 300 placed on the substrate 200 via the protective sheet 400, thereby crimping the component 300 onto the substrate 200. For example, the crimping head 50 is attached to a guide 52, and a motor 51 is driven by the computer 90 to move up and down, thereby pressing the component 300 via the protective sheet 400, thereby crimping the component 300 onto the substrate 200.

[0030] The stage 70 is a base on which the substrate 200, on which components are arranged, is placed. Specifically, the stage 70 holds the substrate 200 in a state where it does not overlap the edge of the substrate 200 in a top view (i.e., the end of the substrate 200 protrudes). The stage 70 is, for example, a three-axis stage that is controlled by a computer 90 and can move in the X, Y, and Z directions.

[0031] The backup stage 80 is a base that supports the edge of the substrate 200 placed on the stage 70. The backup stage 80 is, for example, a one-axis stage that is controlled by a computer 90 and is movable in the Z direction.

[0032] The charge amount measuring unit 140 is a device that measures the charge amount of a predetermined region within the component crimping apparatus 100, that is, measures a physical quantity related to the charge amount. The term "inside the component crimping apparatus 100" refers to, for example, at least one of the following: the inside of a housing that houses each component of the component crimping apparatus 100; each component of the component crimping apparatus 100; components such as the component 300, the substrate 200, and the protective sheet 400 handled by the component crimping apparatus 100; and a space surrounded by each component of the component crimping apparatus 100. In this embodiment, the predetermined region is a portion of the protective sheet 400. Specifically, the predetermined region is, for example, the region of the protective sheet 400 that is surrounded by the dashed ellipse shown in FIG. 1 . That is, in this embodiment, the charge amount measuring unit 140 measures the charge amount of the protective sheet 400. For example, the charge amount measuring unit 140 measures the protective sheet 400 pulled out from the sheet holding unit 20. In this embodiment, the charge amount measuring unit 140 measures the position after the sheet is pulled out from the sheet holding unit 20 and is closer to the sheet holding unit 20 than the position where the pressure bonding head 50 presses the sheet.

[0033] The charge amount measuring unit 140 may measure the protective sheet 400 held by the sheet holding unit 20, or may measure a position on the opposite side of the sheet holding unit 20 from the position pressed by the crimping head 50.

[0034] Furthermore, charge amount measuring unit 140 may be a contact sensor or a non-contact sensor as long as it can measure the charge amount in a predetermined area. In this embodiment, a non-contact sensor that can measure protective sheet 400 without coming into contact with protective sheet 400 is used as charge amount measuring unit 140.

[0035] Furthermore, the charge amount measuring unit 140 may measure the surface potential or the charge amount itself as a measurement related to the charge amount. That is, the charge amount measuring unit 140 measures, for example, the surface potential or charge amount of a predetermined area as a measurement value. The charge amount measuring unit 140 is, for example, a surface electrometer.

[0036] The static eliminator 150 is an ionizer that supplies ionized air to a predetermined area. In this embodiment, the static eliminator 150 reduces the amount of charge on the protective sheet 400 by spraying ionized air. Specifically, the static eliminator 150 sprays air toward the area of ​​the protective sheet 400 that is surrounded by the dashed ellipse shown in FIG. 1 .

[0037] The static eliminator 150 generates ions by, for example, generating a corona discharge, and then sprays air containing the generated ions toward the protective sheet 400. More specifically, the static eliminator 150 sprays air toward, for example, a position on the protective sheet 400 that is pressed by the crimping head 50. For example, the static eliminator 150 is disposed below the protective sheet 400, and sprays air toward the lower surface of the protective sheet 400 at a position opposite the upper surface that is pressed by the crimping head 50.

[0038] Next, a description will be given of the characteristic functional configuration of the component crimping device 100 having the above-described hardware configuration.

[0039] FIG. 2 is a block diagram showing the functional configuration of the component crimping apparatus 100 according to the embodiment.

[0040] The component crimping device 100 includes a substrate support unit 110, a protective sheet supply unit 120, a crimping tool 130, a charge amount measurement unit 140, a charge removal unit 150, a determination unit 160, a notification unit 170, a control unit 180, and a memory unit 190.

[0041] The substrate support 110 is a base that supports the substrate 200. Specifically, the substrate support 110 supports the substrate 200 on which the components 300 are arranged. The substrate support 110 is realized by, for example, a stage 70 and a backup stage 80.

[0042] The protective sheet supply unit 120 is a device that supplies the protective sheet 400 between the crimping head 50 and the component 300. Specifically, the protective sheet supply unit 120 supplies the protective sheet 400 between the crimping tool 130 (more specifically, the crimping head 50) and the component 300 arranged on the substrate 200 placed on the substrate support unit 110. Specifically, when the substrate 200 on which the component 300 is arranged is located at the crimping position (for example, the position of the substrate 200 shown in FIG. 1 , where the lower edge of the substrate 200 is supported by the backup stage 80), the protective sheet supply unit 120 supplies the protective sheet 400 below the crimping head 50 included in the crimping tool 130 and above the component 300 arranged on the substrate 200 placed on the substrate support unit 110. For example, the protective sheet supply unit 120 supplies the protective sheet 400 by shifting the position of the protective sheet 400 each time the crimping tool 130 presses the component 300 together with the protective sheet 400 against the substrate 200 to crimp the component 300 to the substrate 200.

[0043] The protective sheet 400 is held in a roll by the protective sheet supply unit 120 (more specifically, the sheet holding unit 20 provided in the protective sheet supply unit 120), for example. The protective sheet supply unit 120 (more specifically, the feed roller 21 provided in the protective sheet supply unit 120) supplies the protective sheet 400 between the crimping tool 130 (more specifically, the crimping head 50 provided in the crimping tool 130) and the component 300, for example, by pulling out the protective sheet 400 held in the roll by the sheet holding unit 20.

[0044] The protective sheet supply unit 120 is realized by, for example, a sheet holding unit 20, a feed roller 21, and a motor (not shown) that rotates the feed roller 21.

[0045] The crimping tool 130 is a mechanism for crimping the component 300 onto the substrate 200 supported by the substrate support unit 110. Specifically, the crimping tool 130 crimps the component 300 onto the substrate 200 by pressing the component 300 together with the protective sheet 400 supplied by the protective sheet supply unit 120 against the substrate 200. The crimping tool 130 is realized by, for example, a crimping head 50, a motor 51, and a guide 52.

[0046] The determination unit 160 is a processing unit that determines whether or not there is an abnormality in the static eliminator 150 based on the measurement value measured by the charge amount measurement unit 140. The measurement value is a physical quantity related to the charge amount measured by the charge amount measurement unit 140, that is, a physical quantity for calculating the charge amount, or the charge amount itself. The measurement value is, for example, the surface potential or charge amount in a predetermined area. For example, the determination unit 160 determines whether or not there is an abnormality in the static eliminator 150 based on the measurement value measured by the charge amount measurement unit 140 at a predetermined timing in the operation sequence performed by the component crimping device 100 to crimp the component 300 onto the substrate 200.

[0047] The operation sequence is a series of processes for crimping the component 300 onto the substrate 200, which are repeatedly performed by the component crimping apparatus 100, such as the process flow shown in FIG. 4, which will be described later.

[0048] The predetermined timing is, for example, during a series of processes for crimping component 300 onto substrate 200 that are repeatedly performed by component crimping apparatus 100, such as simultaneously with or between each process in the flow shown in Fig. 4 described below. For example, the predetermined timing is when substrate 200 is not positioned between charge amount measuring unit 140 and a predetermined region. In this embodiment, this timing is after substrate 200, to which component 300 has been crimped, has been transported downstream of component crimping apparatus 100 and protective sheet 400 has been moved, and before the edge of substrate 200 placed on stage 70 starts to move to a position where it is supported by backup stage 80.

[0049] FIG. 3 is a diagram showing a specific example of measurement results relating to measurements taken by the charge amount measuring unit 140 according to the embodiment. Specifically, FIG. 3 is a graph showing the surface potential (unit: V) of a predetermined region versus the number of processes (cumulative number of processes / unit: sheets) in which the component 300 has been pressure-bonded to the substrate 200 by the component pressure bonding apparatus 100. That is, in this example, the measurement value measured by the charge amount measuring unit 140 is the surface potential. In FIG. 3, circles represent measured values, and diamonds represent average values. For example, the determination unit 160 calculates an average value (i.e., a moving average value) using the 10 most recent measurement results (the measurement results of the most recent 10 sheets) taken by the charge amount measuring unit 140. In addition, if the number of measurement results does not reach 10, the determination unit 160 calculates the average value using all of the measurement results.

[0050] 3, the average value is stable with little fluctuation up to the cumulative number of processed sheets of about 50 (for example, from the cumulative number of processed sheets of 0 to the dashed line shown in FIG. 3), which indicates that the performance (neutralization performance) of the static eliminator 150 is stable.

[0051] On the other hand, the average surface potential gradually increases after the cumulative number of processed sheets reaches about 50 (for example, after the cumulative number of processed sheets indicated by the dashed line in FIG. 3). This indicates that the static eliminator 150 is no longer able to properly eliminate static electricity, that is, the static eliminator 150 is deteriorating.

[0052] For example, the judgment unit 160 judges that there is an abnormality in the static elimination unit 150 when the average value is equal to or greater than a first threshold value (a judgment threshold value for determining deterioration of the static elimination unit 150 shown by a dotted line in Figure 3), and judges that there is no abnormality in the static elimination unit 150 when the average value is less than the first threshold value.

[0053] The measured surface potentials exhibit a certain degree of variation. On the other hand, the average value exhibits smaller variation than the measured surface potentials. Therefore, by using the average value to determine whether or not there is an abnormality in the static eliminator 150, the determination unit 160 can suppress the influence of variation in the measured values ​​and appropriately determine whether or not there is an abnormality in the static eliminator 150. In this manner, for example, the determination unit 160 determines whether or not there is an abnormality in the static eliminator 150 based on multiple measured values ​​measured by the charge amount measuring unit 140 at predetermined timings in each of the operation sequences repeatedly performed by the component crimping device 100. For example, the determination unit 160 determines whether or not there is an abnormality in the static eliminator 150 based on the average value (e.g., the moving average value described above) of multiple measured values ​​repeatedly measured by the charge amount measuring unit 140 each time the component 300 is mounted on the substrate 200.

[0054] Of course, the determining section 160 may determine whether or not there is an abnormality in the static eliminator 150 based on one measurement value measured by the charge amount measuring section 140.

[0055] Furthermore, as described above, although there is a certain degree of variation in the measured values, if the measured value is too large, that is, if the amount of charge is too large, it may have an adverse effect on the board 200 or the component 300. Therefore, for example, the determination unit 160 may determine that the measured value is abnormal if the measured value is equal to or greater than a second threshold value (a determination threshold value for charge abnormality indicated by a two-dot chain line in FIG. 3), and may determine that the measured value is not abnormal if the measured value is less than the second threshold value.

[0056] For example, based on the determination result of determination unit 160, control unit 180 causes notification unit 170 to notify the determination result or stops the processing executed by component crimping apparatus 100. For example, when determination unit 160 determines that there is an abnormality in static eliminator 150, control unit 180 causes notification unit 170 to notify the determination result and continues to execute the processing executed by component crimping apparatus 100. On the other hand, for example, when determination unit 160 determines that there is an abnormality in the measurement value, control unit 180 causes notification unit 170 to notify the determination result and stops the processing executed by component crimping apparatus 100.

[0057] The first threshold and the second threshold may be arbitrarily determined in advance and are not particularly limited. Threshold information indicating the first threshold and the second threshold is stored in advance in the storage unit 190, for example.

[0058] Furthermore, the number of measurement results of the measurement values ​​used by the judgment unit 160 to calculate the average value does not have to be 10, but may be, for example, 5, 20, 50, or all of the measurement results, and may be set arbitrarily.

[0059] Furthermore, for example, the determination unit 160 determines whether or not there is an abnormality in the static eliminator 150 based on the measurement value measured by the charge amount measurement unit 140 when the air volume supplied from the static eliminator 150 is a predetermined air volume. In other words, the air volume is the same at each timing when the charge amount measurement unit 140 repeatedly measures the measurement value.

[0060] The predetermined air volume may be determined arbitrarily in advance and is not particularly limited. The static eliminator 150 may appropriately change the volume of air to be supplied at a time other than when the charge amount measuring unit 140 measures the measured value.

[0061] The notification unit 170 is a device that notifies a user of information indicating that an abnormality has occurred in the static eliminator 150 when the determination unit 160 determines that an abnormality has occurred in the static eliminator 150. The notification unit 170 is realized, for example, by an audio device having a speaker or the like that outputs sound and / or a display device that displays an image. The notification unit 170 notifies a user of the information indicating that an abnormality has occurred in the static eliminator 150 by outputting sound and / or an image. For example, when the determination unit 160 determines that an abnormality has occurred in the static eliminator 150, the control unit 180 controls the notification unit 170 to notify the user of the information indicating that an abnormality has occurred in the static eliminator 150. The sound information and / or image information indicating that an abnormality has occurred in the static eliminator 150 is stored in advance in, for example, the storage unit 190.

[0062] If the determining unit 160 determines that the static eliminator 150 is normal, the notifying unit 170 may notify the user of information indicating that the static eliminator 150 is normal.

[0063] The control unit 180 is a processing unit that controls the operation and operation timing of each component of the component crimping device 100, such as the substrate support unit 110, the protective sheet supply unit 120, the crimping tool 130, the charge amount measurement unit 140, the static elimination unit 150, and the notification unit 170.

[0064] For example, the control unit 180 controls the substrate support unit 110 , the protective sheet supply unit 120 , the pressure bonding tool 130 , the charge amount measurement unit 140 , the static elimination unit 150 , and the notification unit 170 based on the determination result of the determination unit 160 .

[0065] Furthermore, for example, the control unit 180 controls the supply of the protective sheet 400 by the protective sheet supply unit 120 based on the measurement value measured by the charge amount measurement unit 140. For example, the control unit 180 controls the supply of the protective sheet 400 by the protective sheet supply unit 120 by controlling the pull-out speed at which the protective sheet supply unit 120 pulls out the protective sheet 400 held by the sheet holding unit 20 based on the measurement value measured by the charge amount measurement unit 140. For example, when the measurement value measured by the charge amount measurement unit 140 is greater than a third threshold, the control unit 180 reduces the pull-out speed at which the protective sheet supply unit 120 pulls out the protective sheet 400 held by the sheet holding unit 20. If the pull-out speed is high, the protective sheet 400 is more likely to become charged. Therefore, by reducing the pull-out speed, the amount of charge on the protective sheet 400 can be reduced.

[0066] The third threshold may be arbitrarily determined in advance and is not particularly limited. Threshold information indicating the third threshold is stored in the storage unit 190 in advance, for example.

[0067] The time period during which the control unit 180 controls the protective sheet supply unit 120 to continue supplying the protective sheet 400 and the time period during which the supply of the protective sheet 400 is stopped may be determined arbitrarily in advance and is not particularly limited. These times may be the same or different. Information indicating these times may be stored in the storage unit 190 in advance.

[0068] Furthermore, the time period during which the control unit 180 continues to stop the supply of the protective sheet 400 by controlling the protective sheet supply unit 120 does not have to be predetermined at the time the stoppage is initiated. For example, the control unit 180 may cancel the stoppage when the crimping by the crimping tool 130, which was performed while the supply of the protective sheet 400 was stopped, is completed.

[0069] Furthermore, the control unit 180 may control the protective sheet supply unit 120 to slacken the protective sheet 400 during the period from when the supply of the protective sheet 400 is stopped until the crimping operation by the crimping tool 130 is performed. By slackening the protective sheet 400, it is possible to prevent the protective sheet 400 from interfering with the crimping operation by the crimping tool 130.

[0070] Alternatively, the control unit 180 controls the supply of the protective sheet 400 by the protective sheet supply unit 120, for example, by controlling the time (predetermined time) during which the protective sheet supply unit 120 stops the process of drawing out the protective sheet 400 held in the sheet holding unit 20.

[0071] The control unit 180 causes the crimping tool 130 to press the component 300 onto the substrate 200 together with the protective sheet 400 supplied by the protective sheet supply unit 120 controlled as described above, thereby crimping the component 300 onto the substrate 200.

[0072] Furthermore, for example, the control unit 180 changes the volume of air blown out from the static eliminator 150 based on the measurement value measured by the charge amount measuring unit 140. For example, the control unit 180 increases the volume of air when the measurement value measured by the charge amount measuring unit 140 is greater than a fourth threshold value. This makes it easier to reduce the amount of charge in a predetermined area.

[0073] The fourth threshold may be arbitrarily determined in advance, and is not particularly limited. Threshold information indicating the third threshold is stored in the storage unit 190 in advance, for example.

[0074] Furthermore, the static eliminator 150 has a fixed position at which it blows air onto a specific position on the protective sheet 400 (for example, a position pressed by the crimping tool 130). Therefore, in order to prevent the static eliminator 150 from unnecessarily blowing air onto the protective sheet 400, for example, the air volume may be reduced when the supply of the protective sheet 400 is stopped (in other words, when crimping is being performed by the crimping tool 130).

[0075] The judgment unit 160 and the control unit 180 are realized, for example, by a processor such as a CPU (Central Processing Unit) possessed by the computer 90, a control program stored in a memory possessed by the computer 90 and executed by the processor, and a communication interface for communicating with the substrate support unit 110, the protective sheet supply unit 120, the crimping tool 130, etc.

[0076] Storage unit 190 is a storage device that stores information indicating the types and sizes of substrate 200, component 300, and protective sheet 400, various data indicating the crimping position, crimping direction, operation of each component, timing of the operation, timing of transferring substrate 200 to a component crimping device or the like located downstream of component crimping device 100, control programs executed by determination unit 160, control unit 180, etc. Storage unit 190 is realized by, for example, a flash memory, an HDD (Hard Disk Drive), etc.

[0077] [Processing Procedure] Next, the processing procedure of the component crimping apparatus 100 according to the embodiment will be described in detail.

[0078] FIG. 4 is a flowchart showing the processing procedure of the component crimping apparatus 100 according to the embodiment.

[0079] First, the control unit 180 controls the protective sheet supply unit 120 to start supplying the protective sheet 400 (S101). For example, the control unit 180 controls the supply of the protective sheet 400 based on a measurement value of the charge amount of the protective sheet 400 previously measured by the charge amount measurement unit 140. For example, the control unit 180 controls the supply speed of the protective sheet 400 by the feed roller 21 based on a measurement value of the charge amount of the protective sheet 400 previously measured by the charge amount measurement unit 140. Alternatively, for example, the control unit 180 determines the timing of supplying the protective sheet 400 (more specifically, a predetermined time during which the supply of the protective sheet 400 will be stopped) based on the measurement value of the charge amount of the protective sheet 400 previously measured by the charge amount measurement unit 140, and rotates the feed roller 21 at the determined timing to move the protective sheet 400 held by the sheet holding unit 20.

[0080] Note that, for example, when there is no measurement value for the charge amount of the protective sheet 400 previously measured by the charge amount measuring unit 140, such as immediately after the component crimping apparatus 100 is started, the control unit 180 may control the supply of the protective sheet 400 based on sheet supply information indicating a predetermined sheet supply speed or sheet supply timing that is pre-stored in the storage unit 190. Furthermore, for example, when the component crimping apparatus 100 is stopped, the control unit 180 may store charge amount information in the storage unit 190 that indicates the measurement value for the charge amount of the protective sheet 400 last measured by the charge amount measuring unit 140. In this case, for example, the control unit 180 may control the supply of the protective sheet 400 based on the charge amount information, such as immediately after the component crimping apparatus 100 is started.

[0081] Next, the charge amount measuring unit 140 measures the charge amount of a predetermined region (in this embodiment, the protective sheet 400) (S102). For example, the charge amount measuring unit 140 measures the surface potential of the predetermined region. At this time, the stage 70 is positioned farther away from the backup stage 80 than the position shown in FIG. 1. Therefore, the charge amount measuring unit 140 can measure the protective sheet 400 without being obstructed by the stage 70 and the substrate 200 held by the stage 70. The determining unit 160 acquires information indicating the measurement value measured by the charge amount measuring unit 140.

[0082] At the timing when charge amount measuring unit 140 performs the measurement, protective sheet 400 may be in the process of being moved by protective sheet supply unit 120 or may be stopped.

[0083] Next, the determination unit 160 determines whether or not there is an abnormality in the static eliminator 150 based on the measurement value measured by the charge amount measuring unit 140 (S103).

[0084] If the determining unit 160 determines that there is an abnormality in the static eliminator 150 (Yes in S103), the notifying unit 170 notifies the user of information indicating that there is an abnormality in the static eliminator 150 (S104).

[0085] If the determination unit 160 determines that there is no abnormality in the static eliminator 150 (No in S103), or after step S104, the control unit 180 causes the stage 70 to support the board 200 on which the components 300 are arranged (S105). For example, the control unit 180 controls a board transport unit (not shown) that transports the board 200, thereby holding the board 200 on the stage 70.

[0086] Next, the control unit 180 adjusts the position of the substrate 200 supported by the substrate support unit 110 (S106). Specifically, the control unit 180 controls the substrate support unit 110 (more specifically, the stage 70) to move the substrate 200 so that the edge of the substrate 200 is placed on the backup stage 80, that is, so that the substrate 200 is positioned below the crimping tool 130 (more specifically, the crimping head 50).

[0087] Next, the control unit 180 causes the static eliminator 150 to supply ionized air to a predetermined area (protective sheet 400 in this embodiment) (S107). For example, the control unit 180 controls the volume of air blown out from the static eliminator 150 based on the previous measurement value of the protective sheet 400 measured by the charge amount measuring unit 140.

[0088] Note that, for example, when there is no previous measurement value of the protective sheet 400 measured by the charge amount measuring unit 140, such as immediately after the component crimping apparatus 100 is started, the control unit 180 may control the volume of air blown from the static eliminator 150 based on air volume information indicating a predetermined air volume pre-stored in the storage unit 190. Furthermore, for example, when the component crimping apparatus 100 is stopped, the control unit 180 may store in the storage unit 190 charge amount information indicating the measurement value of the protective sheet 400 last measured by the charge amount measuring unit 140. In this case, for example, the control unit 180 may control the volume of air blown from the static eliminator 150 based on the charge amount information, such as immediately after the component crimping apparatus 100 is started.

[0089] Next, control unit 180 controls crimping tool 130 to press component 300 against substrate 200 together with protective sheet 400 supplied by protective sheet supply unit 120, thereby crimping component 300 to substrate 200 (S108). Specifically, control unit 180 controls protective sheet supply unit 120 to stop the supply of protective sheet 400, and with the supply of protective sheet 400 stopped, lowers crimping head 50 to press component 300 via protective sheet 400, thereby crimping component 300 to substrate 200.

[0090] From step S108 onwards, substrate 200 to which component 300 has been pressure-bonded is carried out from stage 70, and the process returns to step S101, where the flow shown in Fig. 4 is repeatedly executed. Therefore, the result of static elimination by static eliminator 150 executed in step S107 is reflected in the measurement result of charge amount measuring unit 140 executed in step S102 the next time the flow shown in Fig. 4 is executed.

[0091] Note that step S107 may be performed between step S105 and step S106, or may be performed after step S108. Alternatively, the supply of air by the static eliminator 150 may be performed at all times.

[0092] [Effects, etc.] As described above, component crimping apparatus 100 according to the embodiment is a component crimping apparatus that crimps component 300 onto substrate 200. Component crimping apparatus 100 includes charge amount measuring unit 140 that measures the amount of charge in a predetermined area within component crimping apparatus 100, static eliminator 150 that supplies ionized air to the predetermined area, and determination unit 160 that determines whether or not there is an abnormality in static eliminator 150 based on the measurement value measured by charge amount measuring unit 140.

[0093] This allows the determination unit 160 to determine whether the static eliminator 150 has properly neutralized a predetermined region based on the measurement results of the charge amount measuring unit 140. That is, based on the measurement results of the charge amount measuring unit 140, the determination unit 160 properly determines whether the performance of the static eliminator 150 has deteriorated, i.e., whether there is an abnormality in the static eliminator 150. Conventionally, the static eliminator 150 may have a self-diagnosis function for determining whether the static eliminator performance has deteriorated. However, the self-diagnosis function of the conventional static eliminator 150 could not determine whether static elimination was actually successful. Therefore, the component crimping device 100 uses the charge amount measuring unit 140 to measure the actual amount of charge. Therefore, the component crimping device 100 allows the self-diagnosis function of the conventional static eliminator 150 to determine that the static eliminator performance is not deteriorated, but if the static eliminator performance desired by the user is not being achieved, this can be detected early. That is, component crimping device 100 can detect early deterioration in the performance of static eliminator 150. Therefore, for example, when determination unit 160 determines that static eliminator 150 has an abnormality, notification unit 170 or the like can immediately notify the user that static eliminator 150 has an abnormality, allowing the user to perform maintenance on static eliminator 150 early before the abnormality adversely affects board 200, component 300, or the like.

[0094] Furthermore, for example, the judgment unit 160 judges whether or not there is an abnormality in the static elimination unit 150 based on the measurement value measured by the charge amount measurement unit 140 at a predetermined timing in the operation sequence performed by the component crimping device 100 to crimp the component 300 onto the substrate 200.

[0095] By appropriately setting the specified timing, for example, when the specified area is the protective sheet 400, the occurrence of a problem such as the charge amount measuring unit 140 being unable to perform measurements properly due to the substrate 200 or the like being positioned between the charge amount measuring unit 140 and the protective sheet 400 can be suppressed.

[0096] Furthermore, for example, the judgment unit 160 judges whether or not there is an abnormality in the charge removal unit 150 based on multiple measurement values ​​measured by the charge amount measurement unit 140 at predetermined timings in each of the operation sequences repeatedly performed by the component crimping device 100.

[0097] According to this, for example, the judgment unit 160 calculates the average value of multiple measurement values ​​(for example, measurement results of surface potential or charge amount, etc.) and uses the calculated average value to judge whether or not there is an abnormality in the static elimination unit 150, thereby suppressing the influence of variations in each measured measurement value and making it possible to appropriately judge whether or not there is an abnormality in the static elimination unit 150.

[0098] Also, for example, the predetermined timing is when the substrate 200 is not positioned between the charge amount measuring unit 140 and the predetermined region.

[0099] 1, the charge amount measuring unit 140 may be disposed such that the substrate 200 is located between the charge amount measuring unit 140 and a predetermined region when the component 300 is being crimped onto the substrate 200, and the substrate 200 is not located between the charge amount measuring unit 140 and the predetermined region when the component 300 is not being crimped onto the substrate 200. Therefore, even if the charge amount measuring unit 140 is disposed in such a position, the predetermined timing is set to a time when the substrate 200 is not located between the charge amount measuring unit 140 and the predetermined region, so that the charge amount measuring unit 140 can appropriately measure the charge amount.

[0100] Moreover, for example, component crimping apparatus 100 further includes a crimping head 50 that presses component 300 placed on substrate 200 via protective sheet 400, and a protective sheet supply unit 120 that supplies protective sheet 400 between crimping head 50 and component 300. In this case, for example, the predetermined area is a part of protective sheet 400.

[0101] Furthermore, for example, the judgment unit 160 judges whether or not there is an abnormality in the static elimination unit 150 based on the measurement value measured by the charge amount measurement unit 140 when the air volume supplied from the static elimination unit 150 is a predetermined air volume.

[0102] This prevents a decrease in the measurement accuracy of the charge amount measuring unit 140 due to a change in the air flow rate.

[0103] Moreover, for example, the component crimping device 100 further includes a notification unit 170 that notifies the abnormality of the static eliminator 150 when the determination unit 160 determines that the static eliminator 150 has an abnormality.

[0104] This allows the user to be immediately notified that there is an abnormality in the static eliminator 150.

[0105] Furthermore, the control method for a component crimping device according to the embodiment is a control method for component crimping device 100 that crimps component 300 onto substrate 200. The control method for component crimping device 100 includes a charge amount measurement step (S103) of measuring the charge amount in a predetermined area within component crimping device 100, a charge removal step (S107) of supplying ionized air to the predetermined area by charge removal unit 150, and a determination step (S104) of determining whether or not there is an abnormality in charge removal unit 150 based on the measurement value measured in the charge amount measurement step.

[0106] This provides the same effects as those of the component crimping device 100.

[0107] (Other embodiments) Although the component crimping device and the like according to the present embodiment have been described above based on the above embodiment, the present invention is not limited to the above embodiment.

[0108] For example, in the above embodiment, the predetermined area is a partial area of ​​the protection sheet, but it may be a component, a substrate, a stage, a backup stage, or the like that is not a protection sheet.

[0109] Furthermore, for example, all or some of the components of the processing unit, such as the determination unit and control unit, included in the component crimping device may be configured with dedicated hardware, or may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit, such as a CPU or processor, reading and executing a software program recorded on a recording medium, such as a HDD or semiconductor memory.

[0110] Furthermore, the components of the processing section of the component crimping device may be configured with one or more electronic circuits, each of which may be a general-purpose circuit or a dedicated circuit.

[0111] The one or more electronic circuits may include, for example, a semiconductor device, an IC, or an LSI (Large Scale Integration). The IC or LSI may be integrated on a single chip or on multiple chips. Although the IC or LSI is referred to here as an IC or LSI, the name may vary depending on the degree of integration, and may be called a system LSI, a VLSI (Very Large Scale Integration), or an ULSI (Ultra Large Scale Integration). Also, a field programmable gate array (FPGA), which is programmed after the LSI is manufactured, can be used for the same purpose.

[0112] The present invention can be realized not only as a component crimping device, but also as a program including, as steps, processes performed by each constituent element of the component crimping device, and as a computer-readable recording medium such as a DVD (Digital Versatile Disc) on which the program is recorded. In other words, the comprehensive or specific aspects described above may be realized as a system, a device, an integrated circuit, a computer program, or a computer-readable non-transitory recording medium, or as any combination of a system, a device, an integrated circuit, a computer program, and a recording medium.

[0113] In addition, the present invention also includes forms obtained by applying various modifications to each embodiment that a person skilled in the art would think of, and forms realized by arbitrarily combining the components and functions of each embodiment within the scope of the present invention. [Industrial Applicability]

[0114] The component bonding apparatus according to the present invention can be used as a component bonding apparatus for bonding components to a substrate such as a display panel. [Explanation of symbols]

[0115] 20 Sheet holding part 21 Feed roller 50 crimping head 51 Motor 52 Guide 70 stages 80 Backup Stage 90 Computer 100 Component crimping device 110 Substrate support 120 Protective sheet supply unit 130 Crimping Tool 140 Charge amount measurement unit 150 static elimination unit 160 Judgment section 170 Information Department 180 Control Unit 190 Memory section 200 boards 300 parts 400 protective sheet

Claims

1. A component crimping device that crimps components onto a substrate, a crimping head that presses the component placed on the board via a protective sheet; a movable stage on which the substrate is placed; a backup stage located below the compression bonding head and supporting an edge of the substrate placed on the stage; a protective sheet supply unit including a sheet holding unit that holds the protective sheet, the protective sheet being drawn from the sheet holding unit and supplied to a region between the crimping head and the component; a charge amount measuring unit that measures the charge amount of the protective sheet at a position after the protective sheet has been pulled out from the sheet holding unit and that is closer to the sheet holding unit than the position where the protective sheet is pressed by the crimping head; a static elimination unit that supplies ionized air toward the protective sheet; a determination unit that determines whether or not there is an abnormality in the static eliminator based on the measurement value measured by the static charge measurement unit; a control unit, The control unit a first step of controlling the protective sheet supply unit to supply the protective sheet below the crimping head; a second step of supporting the substrate on which the components are arranged on the stage; a third step of controlling the stage to move the substrate so that the edge of the substrate is placed on the backup stage; a fourth step of supplying the air from the static eliminator; a fifth step of controlling the crimping head to crimp the component onto the substrate; the determination unit determines whether or not there is an abnormality in the static elimination unit based on the measurement value measured by the static charge measurement unit when the substrate is not positioned between the static charge measurement unit and the protective sheet between the first step and the second step in the operation sequence. Component crimping device.

2. the determination unit determines whether or not there is an abnormality in the static eliminator based on the plurality of measurement values ​​measured by the charge amount measurement unit in each of the operation sequences repeatedly performed by the component crimping device. The component crimping device according to claim 1 .

3. the determination unit determines whether or not there is an abnormality in the static eliminator based on a measurement value measured by the charge amount measurement unit when the air volume of the air supplied from the static eliminator is a predetermined air volume. The component crimping device according to claim 1 or 2.

4. The device further includes a notification unit that notifies the abnormality of the static eliminator when the determination unit determines that the static eliminator has an abnormality. The component crimping device according to any one of claims 1 to 3.

5. A control method for a component crimping device that crimps a component onto a substrate, comprising: The component crimping device includes: a crimping head that presses the component placed on the board via a protective sheet; a movable stage on which the substrate is placed; a backup stage located below the compression bonding head and supporting an edge of the substrate placed on the stage; a protective sheet supply unit including a sheet holding unit that holds the protective sheet, the protective sheet being drawn from the sheet holding unit and supplied to a region between the crimping head and the component; a charge amount measuring unit that measures the charge amount of the protective sheet at a position after the protective sheet has been pulled out from the sheet holding unit and that is closer to the sheet holding unit than the position where the protective sheet is pressed by the crimping head; a static elimination unit that supplies ionized air toward the protective sheet, a first step of controlling the protective sheet supply unit to supply the protective sheet below the crimping head; a second step of supporting the substrate on which the components are arranged on the stage; a third step of controlling the stage to move the substrate so that the edge of the substrate is placed on the backup stage; a fourth step of supplying the air from the static eliminator; a fifth step of controlling the crimping head to crimp the component onto the substrate; a charge amount measuring step, which is performed between the first step and the second step in the operation sequence and which measures the charge amount when the substrate is not positioned between the charge amount measuring unit and the protective sheet; a determination step of determining whether or not there is an abnormality in the static eliminator based on the measurement value measured in the charge amount measurement step; A method for controlling a component crimping device.

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