JP7038348B2 - Crimping device and crimping method - Google Patents

Description

The present disclosure relates to a crimping device and a crimping method.

Conventionally, a crimping device for crimping a component such as an electronic component on a substrate has been known. For example, Patent Document 1 discloses a bonding apparatus including five tools for crimping an electronic component to an electrode of a substrate. Each tool is connected to the rod of the upper cylinder and moved up and down. The five tools are arranged in a row and the five electronic components are individually crimped and bonded to the substrate.

Japanese Patent Application Laid-Open No. 2003-224165

Patent Document 1 describes that the bonding apparatus simultaneously lowers and raises five tools and crimps five electronic components individually to a substrate. However, even if the five cylinders are of the same type, the speed at which each cylinder moves the rod up and down is not exactly the same. Therefore, if the pressing time of the tool against the electronic component is managed with any cylinder as a reference, the pressing time varies among the tools. This causes variations in crimp quality between tools.

Therefore, the present disclosure provides a crimping device and a crimping method for equalizing the crimping quality of a plurality of crimping tools.

In the crimping device according to one aspect of the present disclosure, the holding table for holding the substrate, the support portion for supporting the mounting portion on which the object is placed on the substrate, and the holding table are moved to move the holding portion described above. A moving device for arranging the support portion, and a plurality of crimping tools for crimping the object of the previously described mounting portion supported by the support portion to the substrate by being located above the support portion and descending. And the storage unit that holds the descent time, which is the arrival time from the descent start time of each of the plurality of crimping tools to the crimping position, and the ascending start timing or descent start timing of the plurality of crimping tools based on the descent time. It is provided with a control unit for adjustment.

The crimping method according to one aspect of the present disclosure includes (a) a step of moving a holding table for holding a substrate, and (b) a plurality of steps of arranging a mounting portion on the substrate on which an object is placed on a support portion. The step of lowering the crimping tool of No. 1 toward the support portion and crimping the object of the previously described portion supported by the support portion, and (c) crimping from the start of lowering of each of the plurality of crimping tools. It includes a step of acquiring a descent time which is an arrival time to a position, and (d) a step of adjusting an ascending start timing or a descent start timing of the plurality of crimping tools based on the descending time.

The above-mentioned comprehensive or specific embodiment may be realized by a recording medium such as a system, an apparatus, a method, an integrated circuit, a computer program, or a computer-readable recording disk, and the system, the apparatus, the method, and the integrated circuit. , Computer programs and any combination of recording media. Computer-readable recording media include non-volatile recording media such as CD-ROMs (Compact Disc-Read Only Memory).

According to the crimping device and the like of the present disclosure, it is possible to equalize the crimping quality of a plurality of crimping tools.

Schematic perspective view of the crimping device according to the embodiment Schematic perspective view showing an example of the configuration of the substrate to which the crimping device according to the embodiment is applied. Schematic side view of the crimping device of FIG. Schematic side view of the crimping device of FIG. 3 as viewed from the table device toward the support portion. A block diagram showing an example of a functional configuration of a crimping device according to an embodiment. A schematic side view showing an example of the positional relationship between the crimping tool of each pressing device according to the embodiment and the tool upper limit position and the tool lower limit position in the same manner as in FIG. A schematic side view showing another example of the positional relationship between the crimping tool of each pressing device according to the embodiment and the tool upper limit position and the tool lower limit position in the same manner as in FIG. A schematic side view showing another example of the positional relationship between the crimping tool of each pressing device according to the embodiment and the tool upper limit position and the tool lower limit position in the same manner as in FIG. A flowchart showing an example of the operation of the crimping device according to the embodiment. A schematic side view showing a state in which the crimping device according to the embodiment positions the substrate for crimping in the same manner as in FIG. A schematic side view showing a state in which the crimping tool of the crimping device according to the embodiment presses the component against the substrate in the same manner as in FIG.

As described in the "Background Art" column, in a crimping device in which each of a plurality of crimping tools is operated by a plurality of cylinders, the operating speed of the cylinders may not be uniform. In such a crimping device, it is difficult to equalize the pressing time for pressing a component during crimping with each crimping tool. However, the pressing time has a great influence on the quality of crimping. Therefore, the present inventors have devised a crimping device or the like that makes it possible to equalize the crimping quality of a plurality of crimping tools as follows.

For example, in the crimping device according to one aspect of the present disclosure, a holding table for holding a substrate, a support portion for supporting a mounting portion on which an object is placed on the substrate, and the holding table are moved and described above. A moving device for arranging the placement portion on the support portion, and a plurality of devices for crimping the object of the previously described placement portion supported by the support portion to the substrate by being located above the support portion and descending. Based on the crimping tool, the storage unit that holds the descent time that is the arrival time from the descent start time of each of the plurality of crimping tools to the crimping position, and the descent time, the ascending start timing or descent start of the plurality of crimping tools. It is equipped with a control unit that adjusts the timing.

According to the above aspect, the ascending start timing or the descending start timing of the plurality of crimping tools is adjusted based on the descending time from the descending start time of each of the plurality of crimping tools to the crimping position. By adjusting the descent start timing, it becomes possible to equalize the timing at which the plurality of crimping tools descend and start pressing the object. Therefore, it is possible to equalize the pressing time of the plurality of crimping tools. In addition, by adjusting the ascending start timing, even if the timings at which the plurality of crimping tools descend and start pressing the object are different, the pressing times of the plurality of crimping tools are made uniform based on the amount of timing deviation. , Multiple crimping tools can be pulled up after pressing. Therefore, the crimping quality of the plurality of crimping tools is equalized.

In the crimping device according to one aspect of the present disclosure, the control unit may adjust the descent start timing so that the plurality of crimping tools reach the crimping position at the same timing.

According to the above aspect, by adjusting the descent start timing, it is possible to make the timing at which the plurality of crimping tools come into contact with the object at the same time. Therefore, it is possible to equalize the crimping quality of a plurality of crimping tools.

In the crimping device according to one aspect of the present disclosure, the storage unit further holds information on the indentation formed at the time of crimping each of the plurality of crimping tools, and the control unit further holds the information on the indentation of the descent time and the indentation. Based on the information, the ascending start timing or the descending start timing may be adjusted.

According to the above aspect, the ascending start timing or the descending start timing of the plurality of crimping tools is adjusted also based on the state of the indentation. The indentation indicates the quality of the crimping state. Therefore, it is possible to equalize the crimping quality of a plurality of crimping tools with high accuracy.

In the crimping apparatus according to one aspect of the present disclosure, the control unit may adjust the ascending start timing or the descending start timing so that the number of indentations in the plurality of crimping tools becomes a predetermined quantity or more. good.

According to the above aspect, the number of indentations indicates the quality of the crimped state. Therefore, it becomes easy to adjust the ascending start timing or the descending start timing of the plurality of crimping tools based on the indentation.

The crimping method according to one aspect of the present disclosure includes (a) a step of moving a holding table for holding a substrate, and (b) a plurality of steps of arranging a mounting portion on the substrate on which an object is placed on a support portion. The step of lowering the crimping tool of No. 1 toward the support portion and crimping the object of the previously described portion supported by the support portion, and (c) crimping from the start of lowering of each of the plurality of crimping tools. It includes a step of acquiring a descent time which is an arrival time to a position, and (d) a step of adjusting an ascending start timing or a descent start timing of the plurality of crimping tools based on the descending time. According to the above aspect, the same effect as the crimping device according to one aspect of the present disclosure can be obtained.

In the crimping method according to one aspect of the present disclosure, the descent start timing may be adjusted so that the plurality of crimping tools reach the crimping position at the same timing.

In the crimping method according to one aspect of the present disclosure, (e) information on the indentation formed at the time of crimping each of the plurality of crimping tools is further acquired, and in the step (d), the descending time and the indentation Based on the information, the ascending start timing or the descending start timing may be adjusted.

In the crimping method according to one aspect of the present disclosure, in the step (d), the ascending start is performed so that the quantity of the indentation after crimping of the plurality of crimping tools in the step (b) becomes a predetermined quantity or more. The timing or the descent start timing may be adjusted.

The above-mentioned comprehensive or specific embodiment may be realized by a recording medium such as a system, an apparatus, a method, an integrated circuit, a computer program, or a computer-readable recording disk, and the system, the apparatus, the method, and the integrated circuit. , Computer programs or any combination of recording media. Computer-readable recording media include non-volatile recording media such as CD-ROMs. Further, the device may be composed of one or more devices. When the device is composed of two or more devices, the two or more devices may be arranged in one device, or may be separately arranged in two or more separated devices. As used herein and in the claims, "device" can mean not only one device, but also a system consisting of a plurality of devices.

Hereinafter, the crimping device and the like according to the present disclosure will be specifically described with reference to the drawings. It should be noted that all of the embodiments described below show comprehensive or specific examples. The numerical values, shapes, components, arrangement positions and connection forms of the components, steps (processes), order of steps, etc. shown in the following embodiments are examples, and are not intended to limit the present disclosure, for example. It can be changed as appropriate according to the specifications of the crimping device and the usage environment. Further, among the components in the following embodiments, the components not described in the independent claim indicating the highest level concept are described as arbitrary components. Further, each figure is a schematic view and is not necessarily exactly shown. Further, in each figure, substantially the same components are designated by the same reference numerals, and duplicate description may be omitted or simplified.

The crimping device 1 according to the embodiment will be described. FIG. 1 is a schematic perspective view of the crimping device 1 according to the embodiment. As shown in FIG. 1, the crimping device 1 fixes the component 3 to the substrate 2 by crimping. Examples of the substrate 2 are, but are not limited to, a liquid crystal panel and an organic or inorganic EL (Electroluminescence) panel. An example of the component 3 is an electronic component such as an IC (Integrated Circuit) chip, but the present invention is not limited to this. Here, the component 3 is an example of an object.

For example, the crimping device 1 is used in the main crimping process or the like in a device for manufacturing a substrate 2 such as a liquid crystal panel. For example, the process in the manufacturing apparatus of the substrate 2 includes a step of arranging the adhesive member 4 on the substrate 2 and a process of temporary crimping in which the component 3 is temporarily fixed by arranging and pressing the component 3 on the adhesive member 4. This includes a step of main crimping in which the component 3 and the adhesive member 4 are pressed to bond the component 3 to the substrate 2.

As shown in FIGS. 1 and 2, the substrate 2 is made of, for example, a translucent material, specifically, a transparent material such as glass. It is preferable that the substrate 2 is transparent so that the crimping state of the component 3 to the substrate 2 can be confirmed from the surface of the substrate 2 opposite to the component 3. Note that FIG. 2 is a schematic perspective view showing an example of the configuration of the substrate 2 to which the crimping device 1 according to the embodiment is applied.

In the present embodiment, the substrate 2 is a rectangular panel. On the mounting surface which is one surface of the substrate 2, a plurality of component mounting positions 2a are set at positions near the peripheral edge of the substrate 2. The component 3 is arranged one by one at each component mounting position 2a. The component 3 is placed at the component mounting position 2a on the mounting surface, that is, temporarily crimped, with the adhesive member 4 interposed therebetween. That is, the component 3 is placed on the mounting surface of the substrate 2 with the adhesive member 4 sandwiched between them. In the present embodiment, the adhesive member 4 includes conductive particles such as metal particles and a resin. An example of the resin is a resin that changes its physical properties by an external action such as a thermosetting resin, a photocurable resin, and a photosoftening resin. In the present embodiment, it is assumed that the adhesive member 4 contains a thermosetting resin.

The adhesive member 4 may be arranged on the mounting surface as a tape or the like made of ACF (Anisotropic Conductive Film), for example, ACP (Anisotropic Conductive Paste) or the like. As a liquid or paste, it may be applied to the mounting surface. ACF is a conductive film formed by molding a thermosetting resin mixed with conductive particles such as fine metal particles into a film shape. ACP is a paste obtained by mixing a thermosetting resin with conductive particles such as fine metal particles. Such an adhesive member 4 is fluidized by being pressurized and heated, and then cured. When the component 3 arranged on the adhesive member 4 is pressed toward the substrate 2, the component 3 and the adhesive member 4 are positioned and temporarily fixed to the substrate 2 by the adhesive force of the adhesive member 4, that is, that is, they are temporarily fixed. Temporarily crimped. The adhesive member 4 does not have to contain conductive particles. In this case, the adhesive member 4 may be arranged on the mounting surface as, for example, a tape made of NCF (Non Conductive Film), or NCP (Non Conductive Paste). For example, it may be applied to the mounting surface in a liquid or paste state.

As shown in FIGS. 1 and 3, the crimping device 1 includes a base 11. Further, the crimping device 1 includes a table device 12, a support portion 13, and a crimping portion 14 on the upper surface 11a of the base 11. Note that FIG. 3 is a schematic side view of the crimping device 1 of FIG. The table device 12 is configured to mount the substrate 2 and supports the mounted substrate 2. The table device 12 can move the holding substrate 2 in the horizontal direction and in the rotation direction about the axis. By moving the held substrate 2, the table device 12 aligns the position of each component 3 on the substrate 2 with the position corresponding to the support portion 13 and the crimping portion 14.

Here, one of the directions along the upper surface 11a of the base 11 is defined as the X direction, the direction along the upper surface 11a and perpendicular to the X direction is defined as the Y direction, and the direction perpendicular to the upper surface 11a is defined as the Z direction. Define. The Z direction is also perpendicular to the X and Y directions. When the base 11 is arranged on the horizontal support surface, the Z direction is also the vertical direction, and the X direction and the Y direction are the horizontal directions. In the present embodiment, it is assumed that the base 11 is arranged on a horizontal support surface.

The table device 12 holds the substrate 2 and adjusts the position of the substrate 2 when crimping the component 3 on the substrate 2. The table device 12 includes a first table 12ba arranged on the upper surface 11a, a second table 12bb arranged on the first table 12ba, and a third table 12bb arranged on the second table 12bb. It includes a holding table 12a supported by a third table 12bc. The first table 12ba extends in the X direction and supports the second table 12bb. The first table 12ba has a drive device (not shown), and the drive of the drive device causes the second table 12bb to move in the X direction with respect to the first table 12ba. The second table 12bb extends in the Y direction and supports the third table 12bc. The second table 12bb has a driving device (not shown), and the driving of the driving device causes the third table 12bb to move in the Y direction with respect to the second table 12bb. The third table 12bc has a drive device (not shown), and by driving the drive device, the holding table 12a is rotated about the vertical axis with respect to the third table 12bc. The vertical axis is also the axis in the Z direction. The holding table 12a holds the substrate 2 placed on the upper surface thereof. Such a first table 12ba, a second table 12bb, and a third table 12bc constitute a moving device 12b that horizontally moves and rotates the holding table 12a holding the substrate 2 on the upper surface in a horizontal plane.

When the component 3 on the substrate 2 is crimped, the support portion 13 supports a surface of the substrate 2 located on the opposite side of the component 3. The support portion 13 is arranged adjacent to the table device 12 in the Y direction. That is, the support portion 13 is adjacent to the table device 12 in the moving direction of the third table 12bc with respect to the second table 12bb. The support portion 13 is arranged on the base 16 arranged on the upper surface 11a of the base 11. The base 16 extends in the X direction and is provided to match the heights of the support portion 13 and the table device 12. The support portion 13 includes a base member 13a arranged on the base 16 and a receiving member 13b arranged on the upper part of the base member 13a.

The base member 13a extends in the X direction on the base 16. The receiving member 13b is a columnar member extending in the X direction, and is a prismatic member in the present embodiment. When crimping the component 3 on the substrate 2, the receiving member 13b functions as a backup stage that supports the substrate 2 from the surface opposite to the component 3. Further, the support portion 13 includes a lower heater 13H for heating the receiving member 13b above the base member 13a. The lower heater 13H is arranged below the receiving member 13b.

The crimping portion 14 crimps the component 3 to the substrate 2 by pressing the component 3 against the substrate 2 supported by the support portion 13. The crimping portion 14 includes a gate-shaped frame 21 that covers the upper part of the support portion 13, and a plurality of pressing devices 22 provided on the frame 21. The frame 21 is arranged on the base 16 and has a horizontal portion 21a extending in the X direction above the support portion 13 and two columns 21b for supporting the horizontal portion 21a. In the present embodiment, the four pressing devices 22 are arranged in the horizontal portion 21a, but the number of the pressing devices 22 may be any number. In the following, the four pressing devices 22 will also be referred to as pressing devices 221, 222, 223 and 224.

As shown in FIGS. 1, 3 and 4, the pressing devices 221 to 224 are arranged side by side in a row in the X direction. Note that FIG. 4 is a schematic side view of the crimping device 1 of FIG. 3 as viewed from the table device 12 toward the support portion 13. Each of the pressing devices 221 to 224 has a pressing cylinder 22C arranged on the horizontal portion 21a of the frame 21 and a crimping tool 22T attached to the lower end of the rod 22R of the pressing cylinder 22C. The rod 22R of each pressing cylinder 22C extends downward. Each pressing cylinder 22C moves the rod 22R substantially in the vertical direction so as to expand and contract from the pressing cylinder 22C. In each of the pressing devices 221 to 224, the crimping tool 22T is arranged so as to be located above the receiving member 13b. By driving each such pressing cylinder 22C, the crimping tool 22T can be moved substantially in the vertical direction via the rod 22R, and the crimping tool 22T can be pressed downward against the receiving member 13b. Examples of the pressing cylinder 22C are a pneumatic cylinder and a hydraulic cylinder, and in the present embodiment, the pressing cylinder 22C is a pneumatic cylinder. Further, each of the pressing devices 221 to 224 has an upper heater 22H for heating the crimping tool 22T in the crimping tool 22T.

As shown in FIGS. 4 and 5, the crimping device 1 further includes a control device 30, an input unit 31, a time measuring unit 32, sensors CA1 to CA4, and sensors CB1 to CB4. The control device 30 has a control unit 30a and a storage unit 30b. Note that FIG. 5 is a block diagram showing an example of the functional configuration of the crimping device 1 according to the embodiment.

The input unit 31 is an input device such as a key, a touch pad, and a mouse that accepts input by the user. Information such as the pressing time of each pressing device 221 to 224, the size and shape of the substrate 2, the position and quantity of the component 3 on the substrate 2 is input to the input unit 31. The input information to the input unit 31 is stored in the storage unit 30b. The timekeeping unit 32 measures the time according to the control of the control unit 30a. The timekeeping unit 32 outputs the measurement result to the control unit 30a. An example of the timekeeping unit 32 is a timer and a clock.

The sensors CA1 to CA4 are respectively arranged at predetermined height positions, and detect the height position of the crimping tools 22T of the pressing devices 221 to 224 in the Z direction. The sensors CB1 to CB4 are respectively arranged at predetermined height positions different from the sensors CA1 to CA4, and detect the height position of the crimping tools 22T of the pressing devices 221 to 224 in the Z direction.

When the pressing devices 221 to 224 do not crimp, the rod 22R is contracted by the pressing cylinder 22C, and the crimping tool 22T is made to stand by at the upper standby position. The heights of the standby positions of the crimping tools 22T of the pressing devices 221 to 224 are the same. The sensors CA1 to CA4 detect whether or not the crimping tool 22T of the pressing devices 221 to 224 is located in the standby position, respectively. Sensors CA1 to CA4 sense each other in the horizontal direction. When the sensors CA1 to CA4 detect the crimping tool 22T or the rod 22R, the crimping tool 22T is located below the standby position, and when the sensors CA1 to CA4 do not detect the crimping tool 22T and the rod 22R, the crimping tool 22T is located in the standby position. .. The sensors CA1 to CA4 output the detection result to the control unit 30a.

The sensors CB1 to CB4 each detect whether or not the crimping tool 22T of the pressing devices 221 to 224 is located at a contact position in contact with the component 3 of the substrate 2 supported by the receiving member 13b of the support portion 13. Sensors CB1 to CB4 each sense in the horizontal direction. When the sensors CB1 to CB4 detect the crimping tool 22T, the crimping tool 22T is located at the contact position, and when the sensors CB1 to CB4 do not detect the crimping tool 22T, the crimping tool 22T is located above the contact position. The sensors CB1 to CB4 output the detection result to the control unit 30a. Examples of the sensors CA1 to CA4 and the sensors CB1 to CB4 are an optical sensor using infrared rays and the like, a laser light sensor such as LIDAR (Light Detection and Ranging), a magnetic sensor and an ultrasonic sensor.

As shown in FIG. 5, the storage unit 30b enables storage of various information and retrieval of the stored information. The storage unit 30b stores information input via the input unit 31, operation start timings of the pressing devices 221 to 224 described later, a program for operating the control unit 30a, and the like. The storage unit 30b is realized by, for example, a storage device such as a ROM (Read-Only Memory), a RAM (Random Access Memory), a semiconductor memory such as a flash memory, a hard disk drive, or an SSD (Solid State Drive). In the present embodiment, the storage unit 30b is included in the control device 30, but may be provided separately from the control device 30.

The control unit 30a performs the following control based on the information stored in the storage unit 30b. For example, the control unit 30a controls the movement operation of the holding table 12a holding the substrate 2 in the horizontal plane by controlling the operation of the table device 12. The control unit 30a controls the operation of each pressing cylinder 22C via an pneumatic control circuit (not shown) to control the pressing operation of the pressing devices 221 to 224 on the component 3 on the substrate 2 via the crimping tool 22T. do. The control unit 30a controls the operation of the upper heater 22H that heats the crimping tool 22T and the operation control of the lower heater 13H that heats the receiving member 13b.

When the component 3 of the substrate 2 is crimped, the control unit 30a presses the pressing device 221 based on the operation start timing information of the pressing devices 221 to 224 stored in the storage unit 30b and the time measured by the time measuring unit 32. -224 Controls the timing of operating each of the pressing cylinders 22C.

Specifically, as shown in FIG. 6A, the tool upper limit position and the tool lower limit position are predetermined for the height position of the crimping tool 22T of each of the pressing devices 221 to 224. Note that FIG. 6A is a schematic side view showing an example of the positional relationship between the crimping tools 22T of the pressing devices 221 to 224 according to the embodiment and the tool upper limit position and the tool lower limit position in the same manner as in FIG. The tool upper limit position and the tool lower limit position are common to all pressing devices 221-224. Further, the time required for operating the pressing cylinders 22C of the pressing devices 221 to 224 and moving the crimping tool 22T at the upper limit position of the tool to the lower limit position of the tool is measured in advance and stored in the storage unit 30b. Hereinafter, the above time is referred to as a “descending time”. The descent time is also information on the operation start timing of the pressing devices 221 to 224. In the example of FIG. 6A, the descent time from the lower end of the crimping tool 22T to the lower limit position of the tool is measured. The measurement may be performed a plurality of times, and in this case, the statistical values of the measured values such as the average value and the median value may be stored in the storage unit 30b as the descending time.

The upper limit position of the tool is preferably a height position equal to or higher than the standby position of the crimping tool 22T when crimping is not performed, but is not limited to this. In the present embodiment, the upper limit position of the tool is the standby position. The lower limit position of the tool is preferably, but is not limited to, a height position equal to or lower than the contact position where the descending crimping tool 22T comes into contact with the component 3 on the substrate 2 supported by the support portion 13. In the present embodiment, the lower limit position of the tool is the contact position. The range from the tool upper limit position to the tool lower limit position can cover the entire vertical range in which the crimping tool 22T can move in the crimping operation. The tool upper limit position is a position where the crimping tool 22T starts descending, and is an example of a position at the time of starting descending. The tool lower limit position is a position where the crimping tool 22T starts pressing the component 3, that is, a position where crimping is started, and is an example of a crimping position.

At the time of crimping, the control unit 30a acquires the lowering time of each of the pressing devices 221 to 224 from the storage unit 30b, and the crimping tool 22T of the pressing devices 221 to 224 arrives at the tool lower limit position at the same timing based on the lowering time. As such, the start timing of the descent of each crimping tool 22T is determined. For example, in the example of FIG. 6B, the descending times T1 to T4 of the pressing devices 221 to 224 are longer in the order of T1, T3, T2, and T4. The control unit 30a first starts lowering the crimping tool 22T of the pressing device 224, then starts lowering the crimping tool 22T of the pressing device 222 after a time (T4-T2), and then starts lowering the crimping tool 22T of the pressing device 222, and then the time (T2-T3). The descent start timing is determined so that the lowering of the crimping tool 22T of the pressing device 223 is started later, and then the lowering of the crimping tool 22T of the pressing device 221 is started after a time (T3-T1). As a result, as shown in FIG. 6C, the crimping tools 22T of all the pressing devices 221 to 224 reach the tool lower limit position at the same time at the timing when the time T4 elapses from the lowering start time of the crimping tool 22T of the pressing device 224, and the parts 3 can be contacted. After that, the control unit 30a controls the operation of the pressing devices 221 to 224, and presses the component 3 with the crimping tool 22T for a predetermined pressing time. 6B and 6C are schematic side views showing another example of the positional relationship between the crimping tool 22T of each pressing device 221 to 224 and the tool upper limit position and the tool lower limit position in the same manner as in FIG.

The control unit 30a as described above may be configured by a microcomputer including a processor such as a CPU (Central Processing Unit) or a DSP (Digital Signal Processor) and a memory. Examples of the memory may be a volatile memory such as RAM and a non-volatile memory such as ROM. A part or all of the functions of the control unit 30a may be achieved by the CPU using the RAM as a working memory to execute a program recorded in the ROM.

Next, the operation of the crimping device 1 according to the embodiment will be described with reference to FIG. 7. FIG. 7 is a flowchart showing an example of the operation of the crimping device 1 according to the embodiment. First, in step S1, the control unit 30a of the crimping device 1 controls the operation of the upper heater 22H and the lower heater 13H, and heats the crimping tool 22T and the receiving member 13b of each pressing device 22 to a predetermined temperature, respectively.

Next, in step S2, when the control unit 30a detects that the substrate 2 is placed on the holding table 12a of the table device 12, the holding table 12a is moved and the substrate 2 is positioned. Specifically, as shown in FIG. 8A, the control unit 30a controls the operation of the moving device 12b of the table device 12, moves the holding table 12a, and receives the portion of the substrate 2 on which the component 3 is placed. It is brought into contact with the member 13b. That is, the control unit 30a supports the support unit 13 via the receiving member 13b, that is, receives the surface of the portion opposite to the surface on which the component 3 is placed. At this time, the control unit 30a positions the substrate 2 so that the component 3 is located directly below the crimping tool 22T of each pressing device 221 to 224. Note that FIG. 8A is a schematic side view showing a state in which the crimping device 1 according to the embodiment positions the substrate 2 for crimping in the same manner as in FIG.

In addition, in order to perform the positioning operation more accurately, a load sensor (not shown) for measuring the load applied to the receiving member 13b may be provided on the support portion 13, and light is transmitted and shielded from the side of the support portion 13. An optical sensor (not shown) that detects the presence or absence of the substrate 2 may be provided. The control unit 30a can accurately detect that the substrate 2 has come into contact with the support unit 13 by acquiring the detection results of the load sensor and / or the optical sensor.

The control unit 30a may detect the placement of the substrate 2 on the holding table 12a by, for example, obtaining a notification of the completion of the above-mentioned placement from a transfer device (not shown) that transfers the substrate 2. Alternatively, the control unit 30a performs the above detection by acquiring the detection result from a load sensor (not shown) arranged on the moving device 12b, or an optical sensor and a sensor such as a camera arranged around the holding table 12a. You may go.

Next, in step S3, the control unit 30a causes the time measuring unit 32 to start measuring the time. The control unit 30a acquires the measurement time from the timekeeping unit 32 while the timekeeping unit 32 is in operation.

Next, in step S4, the control unit 30a acquires the descent time of each of the pressing devices 221 to 224 from the storage unit 30b. Further, the control unit 30a determines the start timing, which is the timing to start the descent of the crimping tools 22T of each of the pressing devices 221 to 224, based on the acquired descent time. Specifically, the control unit 30a has a first start timing t1 of the pressing device for lowering the crimping tool 22T, a second start timing t2 of the pressing device for lowering the crimping tool 22T, and a third crimping tool. The third start timing t3 of the pressing device for lowering the 22T and finally the fourth start timing t4 of the pressing device for lowering the crimping tool 22T are determined. For example, in the example of FIG. 6B, the second start timing t2 is t1 + T4-T2, the third start timing t3 is t1 + T4-T3, and the fourth start timing t4 is t1 + T4-T1.

Next, in step S5, the control unit 30a starts pressing the component 3 on the substrate 2 by the pressing device 22 at the first start timing t1 based on the measurement time of the timing unit 32. Specifically, the control unit 30a first operates the pressing cylinder 22C of the pressing device that lowers the crimping tool 22T, and causes the rod 22R to project downward. The pressing cylinder 22C lowers the crimping tool 22T via the rod 22R. In the example of FIG. 6B, the control unit 30a lowers the crimping tool 22T of the pressing device 224.

Next, in step S6, the control unit 30a determines whether or not the measurement time of the timing unit 32 has reached the second start timing t2. The control unit 30a proceeds to step S7 when the second start timing t2 has been reached (Yes in step S6), and repeats the process of step S6 when the second start timing t2 has not been reached (No in step S6). ..

In step S7, the control unit 30a secondly operates the pressing cylinder 22C of the pressing device for lowering the crimping tool 22T, and lowers the crimping tool 22T. In the example of FIG. 6B, the control unit 30a lowers the crimping tool 22T of the pressing device 222.

Next, in step S8, the control unit 30a determines whether or not the measurement time of the timing unit 32 has reached the third start timing t3. The control unit 30a proceeds to step S9 when the third start timing t3 has been reached (Yes in step S8), and repeats the process of step S8 when the third start timing t3 has not been reached (No in step S8). ..

In step S9, the control unit 30a thirdly operates the pressing cylinder 22C of the pressing device for lowering the crimping tool 22T, and lowers the crimping tool 22T. In the example of FIG. 6B, the control unit 30a lowers the crimping tool 22T of the pressing device 223.

Next, in step S10, the control unit 30a determines whether or not the measurement time of the timing unit 32 has reached the fourth start timing t4. The control unit 30a proceeds to step S11 when the fourth start timing t4 has been reached (Yes in step S10), and repeats the process of step S10 when the fourth start timing t4 has not been reached (No in step S10). ..

In step S11, the control unit 30a finally operates the pressing cylinder 22C of the pressing device that lowers the crimping tool 22T, and lowers the crimping tool 22T. In the example of FIG. 6B, the control unit 30a lowers the crimping tool 22T of the pressing device 221.

In step S12, the crimping tools 22T of all the pressing devices 221-224 come into contact with the component 3 of the substrate 2 at the same time, and press the component 3 is started. As shown in FIG. 8B, the control unit 30a continues to operate the pressing cylinders 22C of the pressing devices 221 to 224 even after the contact, and presses the component 3 against the substrate 2 with each crimping tool 22T. At this time, the component 3 and the substrate 2 are clamped by the crimping tool 22T and the receiving member 13b. When the component 3 is pressed, the adhesive member 4 is heated by the heated crimping tool 22T and the receiving member 13b, softened, and then cured. Note that FIG. 8B is a schematic side view showing a state in which the crimping tool 22T of the crimping device 1 according to the embodiment presses the component 3 against the substrate 2 in the same manner as in FIG.

Next, in step S13, the control unit 30a presses the pressing cylinders 22C of all the pressing devices 221 to 224 at a timing when a predetermined pressing time elapses from the timing when the crimping tool 22T of the pressing devices 221 to 224 comes into contact with the component 3. The rod 22R is pulled back upward, the crimping tool 22T is pulled away from the component 3, and the pressing of the component 3 is completed. As a result, the crimping of the component 3 to the substrate 2 is completed, that is, the mounting of the component 3 is completed. The control unit 30a may determine the timing at which the crimping tool 22T comes into contact with the component 3 from the detection results of the sensors CB1 to CB4. Alternatively, the control unit 30a may estimate from the descent time of the pressing devices 221 to 224 acquired from the storage unit 30b.

When the control unit 30a completes the crimping of the component 3 by all the pressing devices 22 as described above, the control unit 30a changes the position of the substrate 2 by operating the table device 12, and the uncrimped component 3 on the substrate 2 is operated. Is crimped.

As described above, the crimping device 1 according to the embodiment includes a holding table 12a for holding the substrate 2, a support portion 13 for supporting the mounting portion on which the component 3 as an object is mounted, and the substrate 2. The moving device 12b that moves the holding table 12a and arranges the mounting portion on the support portion 13, and the component 3 of the mounting portion supported by the support portion 13 by being located above the support portion 13 and descending. A plurality of crimping tools 22T for crimping to the substrate 2, a storage unit 30b for holding a descent time which is an arrival time from the descent start point of each of the plurality of crimping tools 22T to the crimping position, and a plurality of crimping tools based on the descent time. A control unit 30a for adjusting the descent start timing of the 22T is provided.

According to the above configuration, the descent start timing of the plurality of crimping tools 22T is adjusted based on the descent time from the descent start time of each of the plurality of crimping tools 22T to the crimping position. By adjusting the descent start timing, it becomes possible to equalize the timing at which the plurality of crimping tools 22T descend and start pressing the component 3. Therefore, it is possible to equalize the pressing time of the plurality of crimping tools 22T. Therefore, the crimping quality of the plurality of crimping tools 22T is equalized.

Further, in the crimping device 1 according to the embodiment, the control unit 30a may adjust the descent start timing so that the plurality of crimping tools 22T reach the crimping position at the same timing. According to the above configuration, by adjusting the descent start timing, the timing at which the plurality of crimping tools 22T come into contact with the component 3 can be made equal. Therefore, it is possible to equalize the crimping quality of the plurality of crimping tools 22T.

[Other variants]
Although the crimping device and the like according to one or more embodiments have been described above based on the embodiments, the present disclosure is not limited to these embodiments. As long as it does not deviate from the gist of the present disclosure, various modifications that can be conceived by those skilled in the art are applied to the embodiments, and the embodiments constructed by combining the components in different embodiments are within the scope of one or more embodiments. May be included in.

For example, in the crimping device 1 according to the embodiment, the adhesive member 4 is made of a thermosetting resin, but may be made of a photocurable resin or a photosoftening resin. In this case, the crimping device 1 may include an irradiator that irradiates the adhesive member 4 with light. The photocurable resin may be, for example, one that is softened by heat and cured by receiving light. The photosoftening resin may be, for example, one that receives light to soften and is cured by heat.

Further, in the crimping device 1 according to the embodiment, the control unit 30a lowers the crimping tools 22T of the pressing devices 221 to 224 by using the lowering times of the pressing devices 221 to 224 stored in advance in the storage unit 30b. The start timing of was decided, but it is not limited to this.

For example, the control unit 30a uses the detection signals of the crimping tools 22T of the sensors CA1 to CA4, the detection signals of the crimping tools 22T of the sensors CB1 to CB4, and the measurement time of the timing unit 32 to press the pressing device during the crimping operation. The descent time of each of the crimping tools 22T of 221 to 224 may be measured. The control unit 30a replaces the measured descent time with the descent time stored in the storage unit 30b for each of the pressing devices 221 to 224, or replaces the measured descent time with the descent time stored in the storage unit 30b. It may be used to determine a new descent time. That is, the control unit 30a may update the descent time of each of the pressing devices 221 to 224. The control unit 30a may determine a new descent time using statistical values such as an average value and a median value. In this case, the control unit 30a may weight the measured descent time and the descent time stored in the storage unit 30b. The control unit 30a may update the descent time every time crimping is performed, or may be performed every time crimping is performed a plurality of times. In this way, the control unit 30a may feed back the measurement result of the descent time to the determination of the descent start timing of the crimping tool 22T.

Alternatively, the control unit 30a determines the start timing of lowering of the crimping tool 22T of each of the pressing devices 221 to 224 by using the lowering time of each of the pressing devices 221 to 224 and the inspection result of the crimping state of the component 3. May be good. The component 3 mounted by the crimping device 1 is usually inspected for crimping condition. The conductive particles contained in the adhesive member 4 are squeezed by being pressed during crimping, thereby electrically connecting the component 3 and the substrate 2. Electrical conduction between component 3 and substrate 2 is ensured by squeezing a sufficient number of conductive particles. When the conductive particles are squeezed, they form fine indentations on the surface of the substrate 2. The indentation of the conductive particles can be confirmed from the surface of the substrate 2 opposite to the component 3. Then, based on the quantity of the plurality of indentations, it is determined whether or not conduction is possible, that is, whether or not the crimping state is possible. For example, if the number of indentations is a predetermined quantity or more, it is determined that the crimping state is possible. The larger the number of indentations, the better the crimping condition. The inspection is performed by an inspection machine including a camera that captures indentations via the substrate 2 and detects the number of indentations from the image of the camera.

The control unit 30a of the crimping device 1 may acquire information on the crimping state of the component 3 including the number of indentations formed during crimping from such an inspection machine and store it in the storage unit 30b. Then, the control unit 30a may change the descent start timing of each of the crimping tools 22T of the pressing devices 221 to 224, which is determined from the descent time, based on the number of indentations stored in the storage unit 30b. For example, in a pressing device in which the number of indentations is smaller, it is estimated that the pressing time is short, so that the control unit 30a accelerates the start timing of the lowering of the crimping tool 22T for such a pressing device. Then, the control unit 30a may repeatedly change the start timing based on the number of indentations so that the number of indentations in the crimping tool 22T becomes a predetermined quantity or more. The control unit 30a may change the start timing every time an inspection result is obtained or every time a plurality of inspection results are obtained.

As described above, in the crimping device 1 according to the embodiment, the storage unit 30b holds information on the indentation formed at the time of crimping each of the plurality of crimping tools 22T, and the control unit 30a holds the descent time and the indentation. The descent start timing may be adjusted based on the information in. According to the above configuration, the descent start timing of the plurality of crimping tools 22T is adjusted even based on the state of the indentation. The indentation indicates the quality of the crimping state. Therefore, it is possible to equalize the crimping quality of the plurality of crimping tools 22T with high accuracy. Further, in the crimping device 1 according to the embodiment, the control unit 30a may adjust the descent start timing so that the number of indentations in the plurality of crimping tools 22T becomes a predetermined number or more. According to the above configuration, it is easy to adjust the descent start timing of the plurality of crimping tools 22T based on the indentation. In this way, the control unit 30a may feed back the inspection result of the crimping state to the determination of the lowering start timing of the crimping tool 22T. The control unit 30a may use the feedback of the inspection result of the crimping state and the feedback of the measurement result of the descending time in combination.

Further, in the crimping device 1 according to the embodiment, the control unit 30a is at the timing of pulling up the crimping tools 22T of the pressing devices 221 to 224 after crimping the component 3 by using the lowering time of each of the pressing devices 221 to 224. The ascending timing may be determined. In this case, the control unit 30a causes the crimping tools 22T of the pressing devices 221 to 224 to start lowering at the same timing during the crimping operation. Then, when the crimping tool 22T that has completed pressing the component 3 is pulled up, the control unit 30a determines the ascending timing so as to sequentially pull up the crimping tool 22T of the pressing device having a shorter descent time. For example, in the example of FIG. 6B, the control unit 30a first starts ascending the crimping tool 22T of the pressing device 221 and then, after a time (T3-T1), starts ascending the crimping tool 22T of the pressing device 223. Then, after an hour (T2-T3), the crimping tool 22T of the pressing device 222 starts to rise, and then after an hour (T4-T2), the crimping tool 22T of the pressing device 224 starts to rise. In this way, even if the timing at which the plurality of crimping tools descend and start pressing the component 3 is different due to the adjustment of the ascending timing, the component 3 of the crimping tool 22T of the pressing devices 221 to 224 is based on the amount of timing deviation. The plurality of crimping tools 22T after pressing can be pulled up so that the pressing time of is even. The control unit 30a may also use the feedback of the measurement result of the descending time, may use the feedback of the inspection result of the crimping state, or may use both in the determination of the ascending timing.

Further, the technique of the present disclosure can also be realized as the following crimping method. That is, in the crimping method according to the embodiment, (a) the holding table 12a for holding the substrate 2 is moved, and the mounting portion on the substrate 2 on which the component 3 as an object is mounted is arranged on the support portion 13. The step, (b) the step of lowering the plurality of crimping tools 22T toward the support portion 13 and crimping the component 3 of the mounting portion supported by the support portion 13, and (c) the multiple crimping tools 22T, respectively. It includes a step of acquiring a descent time which is an arrival time from a descent start time to a crimping position, and (d) a step of adjusting an ascending start timing or a descending start timing of a plurality of crimping tools 22T based on the descent time. The crimping method according to the embodiment also has the same effect as the crimping device 1 according to the embodiment.

Further, in the crimping method according to the embodiment, the descent start timing may be adjusted so that the plurality of crimping tools 22T reach the crimping position at the same timing.

Further, in the crimping method according to the embodiment, (e) information on the indentation formed at the time of crimping each of the plurality of crimping tools 22T is further acquired, and in the step (d), based on the information on the descent time and the indentation. , The ascending start timing or the descending start timing may be adjusted. Further, in the crimping method according to the embodiment, in the step (d), the ascending start timing or the descending start is started so that the number of indentations after crimping of the plurality of crimping tools 22T in the step (b) becomes a predetermined quantity or more. The timing may be adjusted.

The crimping method as described above may be realized by a processor such as an MPU (Micro Processing Unit) and a CPU, a circuit such as an LSI, an IC card, a single module, or the like.

Further, the technique of the present disclosure may be realized by a software program or a digital signal consisting of the software program, or may be a non-temporary computer-readable recording medium in which the program is recorded. Needless to say, the above program can be distributed via a transmission medium such as the Internet.

In addition, the numbers such as the ordinal number and the quantity used above are all exemplified for the purpose of concretely explaining the technique of the present disclosure, and the present disclosure is not limited to the exemplified numbers. Further, the connection relationship between the components is exemplified for concretely explaining the technique of the present disclosure, and the connection relationship for realizing the function of the present disclosure is not limited to this.

Further, the division of the functional block in the block diagram is an example, and a plurality of functional blocks can be realized as one functional block, one functional block can be divided into a plurality, and some functions can be transferred to other functional blocks. You may. Further, the functions of a plurality of functional blocks having similar functions may be processed by a single hardware or software in parallel or in a time division manner.

The technique of the present disclosure is useful for a technique of mounting a component using a photomodified resin.

1 Crimping device 2 Board 3 Parts (object)
4 Adhesive member 12 Table device 12a Holding table 12b Moving device 13 Support part 13a Base member 13b Receiving member 14 Crimping part 22, 221-224 Pressing device 22C Pressing cylinder 22T Crimping tool 30 Control device 30a Control unit 30b Storage unit 32 Timekeeping unit

Claims (8)

A holding table that holds the board,
A support portion that supports the mounting portion on which the object is mounted on the substrate, and a support portion.
A moving device that moves the holding table and arranges the previously described mounting portion on the supporting portion.
A plurality of crimping tools for crimping the object of the previously described portion supported by the support portion to the substrate by being located above the support portion and descending.
A storage unit that holds a descent time, which is the arrival time from the descent start point of each of the plurality of crimping tools to the crimping position,
A crimping device including a control unit for adjusting an ascending start timing or a descending start timing of the plurality of crimping tools based on the descending time. The crimping device according to claim 1, wherein the control unit adjusts the descent start timing so that the plurality of crimping tools reach the crimping position at the same timing. The storage unit further retains information on the indentation formed during crimping of each of the plurality of crimping tools.
The crimping device according to claim 1 or 2, wherein the control unit adjusts the ascending start timing or the descending start timing based on the information of the descending time and the indentation. The crimping device according to claim 3, wherein the control unit adjusts the ascending start timing or the descending start timing so that the quantity of the indentations in the plurality of crimping tools becomes a predetermined quantity or more. (A) A step of moving a holding table for holding a substrate and arranging a mounting portion on the substrate on which an object is placed on a support portion.
(B) A step of lowering a plurality of crimping tools toward the support portion and crimping the object of the previously described placement portion supported by the support portion.
(C) A step of acquiring the descent time, which is the arrival time from the descent start point of each of the plurality of crimping tools to the crimping position, and
(D) A crimping method including a step of adjusting an ascending start timing or a descending start timing of the plurality of crimping tools based on the descending time. The crimping method according to claim 5, wherein the lowering start timing is adjusted so that the plurality of crimping tools reach the crimping position at the same timing. (E) Further acquiring information on the indentation formed during crimping of each of the plurality of crimping tools,
The crimping method according to claim 5 or 6, wherein in the step (d), the ascending start timing or the descending start timing is adjusted based on the information of the descending time and the indentation. Claimed in the step (d), the ascending start timing or the descending start timing is adjusted so that the quantity of the indentation after crimping of the plurality of crimping tools in the step (b) becomes a predetermined quantity or more. 7. The crimping method according to 7.

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