JP2020027860A - Mounting device, and mounting method - Google Patents

Abstract

To suppress deviation of a continuation point between electrodes during thermocompression bonding.SOLUTION: A mounting device includes: position adjustment means 117 for adjusting a positional relation between a first member 201 and a second member 202; an attachment device 114 for attaching the first member 201 and the second member 202; a pressure bonding device 115 for securing continuity between a first electrode 211 and a second electrode 212; first distance acquisition means and second distance acquisition means 105 for acquiring a distance between pressure-unbonded and pressure-bonded first marks 221, and a distance between pressure-unbonded and pressure-bonded second marks 222; an electrode information acquisition part 415 for acquiring electrode information; a difference calculation part 416 for calculating a differential value DV in a dimension change amount between the first mark 221 and the second mark 222; change amount derivation means 417 for deriving a change amount YV in a second direction on the basis of the differential value DV, the distance between pressure-unbonded and pressure-bonded first marks 221, the distance between pressure-unbonded and pressure-bonded second marks 222, and the electrode information; and a position control part 418 for controlling the position adjustment means 117 on the basis of the change amount YD.SELECTED DRAWING: Figure 1

Description

  TECHNICAL FIELD The present invention relates to a mounting apparatus and a mounting method for connecting a first electrode provided in a first member and a second electrode provided in a second member by crimping after attaching a first member and a second member.

  A large number of electrodes for acquiring a video signal and the like are arranged at narrow intervals on a display substrate constituting a display device. A large number of electrodes corresponding to the electrodes are provided in a TCP (Tape Carrier Package) for transmitting a video signal. Electrodes are arranged.

  TCP or the like expands and contracts due to temperature, humidity, and the like, and the distance between the electrodes changes accordingly. Conventionally, in order to cope with a change in the distance between the electrodes due to the environment, the electrodes are radially arranged so that the distance between the adjacent electrodes gradually changes, and the difference in the distance between a pair of alignment marks provided in the vicinity of the electrodes is calculated. Based on this, there has been proposed a technique of adjusting the distance between the display substrate and the TCP such that the interval between the electrodes on the display substrate side and the interval between the electrodes on the TCP side match (for example, see Patent Document 1).

JP-A-2003-258027

  However, when a display substrate or the like and a TCP or the like are attached via an anisotropic conductive film (hereinafter, sometimes referred to as an ACF (Anisotropic Conductive Film)), there is a difference in the elongation rate between the two, and therefore, when the two are stretched at the time of pressure bonding. The inventor has found that a shift of the conduction point between the corresponding electrodes occurs due to the influence of heat.

  The present invention is based on the above new knowledge of the inventor, and an object of the present invention is to provide a mounting apparatus and a mounting method for suppressing a shift of a conduction point between electrodes.

  In order to achieve the above object, a mounting apparatus according to one aspect of the present invention is configured such that a first member having a plurality of first electrodes arranged in a first direction is provided on the first member via an ACF (Anisotropic Conductive Film). A mounting device for sequentially mounting a second member having a plurality of second electrodes connected to the electrodes, in a second direction intersecting the first direction, the first member and the second member Position adjusting means for adjusting the positional relationship between the first member and the second member, a mounting device for securing conduction between the first electrode and the second electrode, and a crimping device. A first mark distance before compression, which is a distance between a pair of first marks provided on the first member with the first electrode interposed therebetween in the first direction before being crimped, and the first mark distance with the second electrode interposed therebetween. Provided on two members A first distance acquisition unit that acquires a second mark distance before crimping, which is a distance between the pair of second marks, and the first member and the second member crimped by the crimping device, based on the pair of the second marks. A first mark distance after compression that is the distance of one mark, a second distance acquisition unit that acquires a second mark distance after compression that is the distance between the pair of second marks, and the first mark distance before compression and the first mark distance. The first mark distance after crimping, and the second mark distance before crimping and the second mark distance after crimping, with the crimping by the crimping device, the dimensional change amount of the first electrode in the first direction and the second A difference calculation unit for calculating a difference between the dimensional change amount of the electrode and the change amount in the second direction between the first member and the second member to be subsequently mounted by the mounting device; , The second mark distance before the crimping, Includes a change amount deriving unit that derives, based on the fine the electrode information, and a position control unit and the second electrode for controlling the position adjusting means to allow conduction corresponding to the first electrode, based on the derived amount of change.

  Further, in order to achieve the above object, a mounting method according to another aspect of the present invention includes a first member having a plurality of first electrodes arranged in a first direction, and a first member having an ACF (Anisotropic Conductive Film) interposed therebetween. A mounting method for sequentially mounting a second member including a plurality of second electrodes respectively connected to the first electrode, wherein in a second direction intersecting the first direction, the second member is positioned by a position adjusting unit. An adjusting step of adjusting a positional relationship between one member and the second member, an attaching step of attaching the first member and the second member, the positional relationship of which in the second direction has been adjusted, by an attaching device, A crimping step of securing continuity between the first electrode and the second electrode by a crimping device, and sandwiching the first electrode in a first direction before being crimped by the crimping device; The first mark distance before compression, which is the distance between a pair of first marks provided on one member, and the first pressure distance before compression, which is the distance between a pair of second marks provided on the second member across the second electrode. A first distance obtaining step in which the first distance obtaining means obtains the two mark distance, and a pressure bonding which is a distance between a pair of the first marks based on the first member and the second member pressed by the pressing device. A second distance acquisition step in which a second distance acquisition unit acquires a second first mark distance, and a second mark distance after compression, which is a distance between the pair of second marks, and a plurality of the first electrodes, and a plurality of first electrodes. At least one of the second electrodes changes so that the interval between the electrodes adjacent to each other in the second direction becomes narrower, and the first electrode and the electrode are information on the arrangement state of the second electrode. Information is acquired by the electrode information acquisition unit. The electrode information acquisition step to be performed, the first mark distance before crimping and the first mark distance after crimping, and the second mark distance before crimping and the second mark distance after crimping, with the crimping by the crimping device, A difference calculation step in which a difference calculation unit calculates a difference between the dimensional change amount of the first electrode and the dimensional change amount of the second electrode in a first direction, and a first member and a second member to which the mounting device is mounted next And a change amount deriving step in which a change amount deriving unit derives the difference amount in the second direction from the difference value, the first mark distance before crimping, the second mark distance before crimping, and the electrode information, A position control unit that controls the position adjusting unit based on the change amount so that the first electrode and the corresponding second electrode can conduct.

  According to these, it is possible to suppress the occurrence of the shift of the conduction point between the first electrode and the corresponding second electrode due to the influence of heat applied at the time of pressing.

  It should be noted that executing a program for causing a computer to execute each process included in the mounting method also corresponds to the embodiment of the present invention. Of course, the embodiment of the present invention also includes implementing a recording medium on which the program is recorded.

  ADVANTAGE OF THE INVENTION According to this invention, the shift of the conduction | electrical_connection point between electrodes at the time of thermocompression bonding can be suppressed, and it becomes possible to aim at improvement of the productivity in a mounting apparatus and a mounting method.

FIG. 1 is a conceptual diagram showing an overall configuration of a mounting system including a mounting device. FIG. 2 is a plan view showing the arrangement of the first electrode of the first member and the arrangement of the second electrode of the second member. FIG. 3 is a plan view showing a state in which the first member and the second member in a state where no elongation has occurred are superimposed. FIG. 4 is a plan view showing a state in which the first member and the second member in a state where elongation has occurred are superimposed. FIG. 5 is a functional block diagram illustrating a schematic configuration of a line controller and a mounting device of the mounting system. FIG. 6 is a plan view showing a state in which the first member and the second member in a state where elongation has occurred are superimposed with the change amount as a correction value. FIG. 7 is a perspective view schematically showing the mounting device. FIG. 8 is a flowchart showing a mounting process of the mounting apparatus.

  Next, an embodiment of a mounting apparatus and a mounting method according to the present invention will be described with reference to the drawings. Each of the embodiments described below shows a comprehensive or specific example. Numerical values, shapes, materials, constituent elements, arrangement positions and connection forms of constituent elements, steps, order of steps, and the like shown in the following embodiments are merely examples, and do not limit the present invention. In addition, among the components in the following embodiments, components not described in the independent claims indicating the highest concept are described as arbitrary components.

  In addition, the drawings are schematic diagrams in which emphasis, omission, and adjustment of ratios are appropriately performed to illustrate the present invention, and may be different from actual shapes, positional relationships, and ratios.

  FIG. 1 is a conceptual diagram showing an overall configuration of a mounting system including a mounting device. This mounting system 100 is a system for mounting a second member 202 on a first member 201, and includes a loader 101, a washer 102, a mounting device 103, a first distance obtaining unit 116, and a second distance obtaining unit 105. And an unloader 106. Further, a line controller 108 which is a computer for controlling each of the above mechanisms is provided.

  Although the first member 201 is not particularly limited, in the case of the present embodiment, a resin substrate constituting the organic EL display is illustrated as the first member 201. FIG. 2 shows a first electrode 211 provided on the first member 201 and a pair of first marks 221. The material forming the first member 201 is not particularly limited, and examples thereof include glass and a resin such as polyimide. Also, the shape of the first member 201 is not particularly limited, but in the case of the present embodiment, it is plate-shaped. In FIG. 2 and the like, the first electrode 211 is hatched, but this is to distinguish it from the second electrode 212 and does not show a cross section.

  The first electrode 211 is a conductive member such as a metal provided on the surface of the first member 201. The first electrodes 211 are arranged side by side in a first direction (X-axis direction in the figure). In the case of the present embodiment, the plurality of first electrodes 211 are strip-shaped (strip-shaped) and have the same shape, and one (negative) of a second direction (Y-axis direction in the drawing) orthogonal to the first direction. (Direction) is arranged so that the interval between the electrodes adjacent to each other becomes narrower. More specifically, the plurality of first electrodes 211 extend radially from a distant point, and are arranged such that the longitudinal direction of the first electrodes 211 is placed on a phantom line that has the same adjacent angle and spreads. Although the number of the electrodes shown in the figure is seven and the interval is sharply reduced, this is for the purpose of explanation and does not describe the actual state of the electrodes.

  The first mark 221 is an alignment mark for acquiring a positional relationship between the first member 201 and the second member 202. Although the shape and position of the first mark 221 are not particularly limited, in the case of the present embodiment, they are provided on both sides in the direction in which the first electrodes 211 are arranged (the X-axis direction in FIG. 2). In the case of the present embodiment, the first mark 221 is circular.

  The second member 202 is not particularly limited, but in the case of the present embodiment, an electronic material is formed on a flexible resin film including a type such as TCP (Tape Carrier Package) and COF (Chip on Film). A circuit film on which components are mounted is illustrated as a second member 202. FIG. 2 shows a second electrode 212 provided on the second member 202 and a pair of second marks 222. Although the material forming the second member 202 is not particularly limited, for example, a resin such as polyimide can be exemplified. Even when the material of the first member 201 is polyimide, the first member 201 and the second member 202 have different coefficients of thermal expansion due to a difference in thickness and a difference in additives. Also, the shape of the first member 201 is not particularly limited, but in the case of the present embodiment, it is a flexible film.

  The second electrode 212 is a conductive member such as a metal provided on the surface of the second member 202. The second electrodes 212 are arranged side by side in the first direction (the X-axis direction in the figure). In the case of the present embodiment, the plurality of second electrodes 212 have the same shape as the first electrode 211, and face one (negative direction) in a second direction (Y-axis direction in the figure) orthogonal to the first direction. The arrangement state in which the distance between adjacent electrodes is narrowed is the same as that of the first electrode 211. Therefore, the first electrode 211 and the second electrode 212 can be superimposed on the design value (ideally) as shown in FIG.

  The second mark 222 is an alignment mark for acquiring a positional relationship between the first member 201 and the second member 202. Although the shape and position of the second mark 222 are not particularly limited, in the case of the present embodiment, the point marks provided on both sides in the direction in which the second electrodes 212 are arranged (the X-axis direction in FIG. 2). Mark. As shown in FIG. 3, the second mark 222 is arranged so that the center points coincide with each other when the first electrode 211 and the second electrode 212 are completely overlapped with each other at a design value (ideally). ing.

  The loader 101 is an apparatus for introducing the first member 201 manufactured in another process into the mounting system 100. On the other hand, the unloader 106 is a device that derives the first member 201 to which the second member 202 is attached in the mounting system 100 and transfers the first member 201 to another process.

  The cleaning device 102 is a device that cleans a portion of the first member 201 supplied by the loader 101 to which the ACF is attached, and removes dirt and the like by rubbing a cloth or the like on the periphery of the first member 201.

  The mounting device 103 is a line for attaching the second member 202 to the peripheral portion of the first member 201, and includes an ACF attaching device 113, a supply unit 104 for supplying the second member 202, an attaching device 114, and a crimping device 115. It has.

  The ACF attaching apparatus 113 is an apparatus for attaching an ACF tape to a predetermined position on the surface of the first member 201. Here, the ACF is interposed between the first member 201 and the second member 202, and when heat and pressure are applied together, only the portion where the pressure is applied is electrically connected only in the pressure direction. Continuity can be ensured, and furthermore, the second member 202 is permanently fixed to the first member 201, and the first electrode provided on the first member 201 and the second electrode provided on the second member 202 It is a substance that can maintain conduction. ACF is sometimes referred to in Japanese as an anisotropic conductive adhesive. In addition, the ACF tape means a long strip-shaped ACF.

  The attaching device 114 is a device that arranges the second member 202 on the ACF attached to the first member 201 by the ACF attaching device 113, and temporarily press-bonds the second member 202 to the first member 201. It has a placement head that can be heated to a relatively low temperature and can apply a relatively weak pressure. This placement head can hold the second member 202 supplied from the supply unit 104 and transfer it to a predetermined mounting position. Further, the arrangement head is the first arrangement direction of the plurality of first electrodes provided on the surface of the first member 201 arranged on the mounting device 114 (the arrangement direction from the ACF attaching device 113 to the crimping device 115 in the drawing). In a second direction (a direction in which the supply unit 104 and the mounting device 114 are arranged) that intersects at right angles with one direction, a position adjusting unit 117 that can adjust the positional relationship between the first member 201 and the second member 202 is provided. I have. The position adjusting means 117 may be capable of adjusting the position other than in the second direction, or may be capable of adjusting the angle of the second member 202 with respect to the first member 201 by rotating the second member 202.

  The first distance acquisition unit 116 is a first pre-compression first distance that is a distance between a pair of first marks provided on the first member 201 with the first electrode 211 interposed therebetween in the first direction before being thermocompression-bonded by the compression device 115. A mark distance BD1 and a second mark distance before compression BD2, which is a distance between a pair of second marks provided on the second member 202 with the second electrode 212 interposed therebetween, are acquired. The first mark distance BD1 before compression and the second mark distance BD2 before compression acquired by the first distance acquisition means 116 are transmitted to the line controller 108.

  Although the first distance acquisition unit 116 is not particularly limited, in the case of the present embodiment, the imaging device 145 (see FIG. 7) used for adjusting the position of the first member 201 and the second member 202 in the mounting device 114. The first mark distance BD1 before crimping and the second mark distance BD2 before crimping are detected by analyzing the image acquired from the above-mentioned method. Note that the first distance acquisition unit 116 is not limited to the imaging unit, and may acquire the first mark distance BD1 before compression and the second mark distance BD2 before compression from the line controller 108 or the like.

  The crimping device 115 strongly presses the second member 202 attached to the surface of the first member 201 via the ACF by the attachment device 114 while applying a relatively high temperature by the heating / pressing head. Is a device that attaches a second member 202 to the surface of the first electrode to ensure conduction between the first electrode and the second electrode. The crimping device 115 may be provided in the mounting device 103 in parallel. For example, the long side and the short side of the first member 201 are shared by the two crimping devices 115 and crimped, so that the mounting device 103 can be improved in throughput.

  The second distance acquisition means 105 is based on the first member 201 and the second member 202 that are thermocompression-bonded by the compression device, and a pair of first marks provided on the first member 201 with the first electrode therebetween in the first direction. A so-called inspection machine that acquires a first mark distance AD1 after crimping, which is the distance of the second mark, and a second mark distance AD2 after crimping, which is the distance between a pair of second marks provided on the second member 202 across the second electrode. It is. The post-pressing first mark distance AD1 and the post-pressing second mark distance AD2 obtained by the second distance obtaining means 105 are transmitted to the line controller 108.

  In the case of the present embodiment, the second distance acquisition unit 105 is a camera, and detects the first mark distance AD1 after compression and the second mark distance AD2 after compression by analyzing the captured image. Specifically, for example, as shown in FIG. 4, the second distance acquisition unit 105 acquires a first distance BD1 that is the distance of the first mark 221 and a second distance BD2 that is the distance of the second mark 222.

  Note that the first distance acquisition unit 116 and the second distance acquisition unit 105 may transmit the captured image to the line controller 108, and the image analysis may be performed by the line controller 108. In addition, the first distance acquisition unit 116 and the second distance acquisition unit 105 provide information other than the distance between the first mark and the second mark before and after the compression, for example, the first distance between the first electrode 211 and the second electrode 212. A deviation in the direction (X-axis direction in the figure), a deviation in the second direction (Y-axis direction in the figure), a deviation in the rotation direction, and the like may be acquired.

  The line controller 108 is a computer that manages and controls the operation status of the entire mounting system 100, communication of various data, and the like. The communication cable 109 connects the line controller 108 and each device.

  FIG. 5 is a functional block diagram illustrating a schematic configuration of a line controller and a mounting device of the mounting system. The line controller 108 includes a control unit 410, a storage unit 411, an input unit 412, a display unit 413, a communication I / F unit 414, an electrode information acquisition unit 415, a difference calculation unit 416, and a change amount derivation unit. 417 and a position control unit 418.

  The control unit 410 executes the line control data stored in the storage unit 411 according to an instruction from an operator or the like, and controls each unit of the mounting system 100 according to the execution result.

  The storage unit 411 is a storage medium such as a hard disk or a semiconductor memory, and holds electrode information or the like, which is information on the arrangement states of the first electrode 211 and the second electrode 212.

  The input unit 412 is an information input device such as a keyboard, a mouse, and a touch panel. The display unit 413 is a display device such as a CRT (Cathode-Ray Tube) or an LCD (Liquid Crystal Display). The input unit 412 and the display unit 413 form a man-machine interface. These are used, for example, for the line controller 108 to interact with the operator.

  The communication I / F unit 414 is a LAN (Local Area Network) adapter or the like, and is used for communication between the line controller 108, the mounting apparatus 103, and the second distance acquisition unit 105.

  The electrode information acquisition unit 415 is a processing unit that acquires, from the storage unit 411 or the like, electrode information that is information on the arrangement state of the first electrode 211 and the second electrode 212. The electrode information is data including a virtual center position of the radially arranged electrodes, an angle of the electrodes with respect to the first direction, the number of electrodes, an interval between adjacent electrodes, a length and a width of the electrodes, and the like. Note that the angle of the electrode with respect to the first direction may be the angle of the electrode disposed at least at one end.

  The difference calculation unit 416 calculates the first mark distance BD1 before crimping and the first mark distance AD1 after crimping, and the second mark distance BD2 before crimping and the second mark distance AD2 after crimping, based on the first mark distance BD1 and the second mark distance AD2 after crimping. The processing unit calculates a difference between the dimensional change amount of the first electrode 211 and the dimensional change amount of the second electrode 212 in one direction as a difference value DV. When expressed by the equation, the difference value DV = (first mark distance BD1 before compression-first mark distance AD1 after compression)-(second mark distance BD2 before compression and second mark distance AD2 after compression).

  The change amount deriving unit 417 calculates the change amount YV in the second direction between the first member 201 and the second member 202 to be subsequently attached by the attachment device 114 to the difference value DV calculated by the difference calculation unit 416, and then to the next crimping. The processing unit derives based on the first mark distance BD1 of the first member 201 before compression and the second mark distance BD2 of the second member 202 before compression, and the electrode information acquired by the electrode information acquisition unit 415. The method of deriving the variation YV is not limited, but in the case of the present embodiment, the variation deriving unit 417 determines that the variation YV = [(the first mark distance before crimping of the first member 201 to be crimped next. BD1−the second mark distance BD2) of the second member 202 to be pressed next, and the amount of change is calculated using the formula of differential value DV] / 2 × tan θ. Here, θ is, for example, the angle of the endmost electrode with respect to the first direction (see FIG. 6).

  The position control unit 418 controls the position adjustment unit 117 provided in the mounting device 114 based on the derived change amount YV, so that the first member 201 and the second member 202 after the thermocompression bonding correspond to the first electrode. This is a processing unit that controls the two electrodes to be electrically connected so that an undesired short circuit does not occur. The position control unit 418 may be included in the mounting device 114 instead of the line controller 108. Further, the position control unit 418 determines not only the change amount YV but also the first member 201 based on the correction value obtained by the second distance obtaining unit 105 in consideration of the shift between the first member 201 and the second member 202. The relative positional relationship with the second member 202 may be adjusted.

  The mounting device 103 includes a control unit 430, a storage unit 431, an input unit 432, a display unit 433, a communication I / F unit 434, and a mechanism unit 435.

  The control unit 430 executes the NC data in the storage unit 431 according to an instruction from an operator or the like, and controls each unit according to the execution result.

  The storage unit 431 is a hard disk, a semiconductor memory, or the like, and holds NC data and the like. The NC data is data indicating where to attach the plurality of second members 202 to the first member 201, respectively.

  The input unit 432 is a man-machine interface such as a keyboard and a mouse, and the display unit 433 is a man-machine interface such as a CRT and an LCD. These are used for a dialog between the mounting apparatus 103 and the operator.

  The communication I / F unit 434 is a LAN adapter or the like, and is used for communication between the mounting apparatus 103 and the line controller 108.

  The mechanism unit 435 includes a suction nozzle that suctions and holds the second member 202, a position adjusting unit 117, and the like.

  FIG. 7 is a perspective view schematically showing the mounting device. As shown in the figure, the mounting device 114 includes a table 141, a placement head 142, a suction nozzle 143, and a backup stage 144.

  The table 141 is a table on which the first member 201 is placed and can be transferred in the XY directions by being translated in the XY directions by the driving mechanism. Further, the table 141 can move up and down in the Z direction and rotate in the θ direction, and can transfer the placed first member 201 in the Z direction and rotate it in the θ direction.

  The placement head 142 is a device that sucks and holds the second member 202 supplied from the supply unit 104 by the suction nozzle 143, and transfers and arranges the second member 202 in the rotational direction to the mounting position.

  The suction nozzle 143 attaches the second member 202 to the first member 201 by moving up and down in the Z direction. Further, the suction nozzle 143 can move in parallel with the placement head 142 in the X and Y directions and can also rotate in the θ direction. This is because the position and angle of the second member 202 held by suction are finely corrected and then attached to the first member 201.

  In the case of the present embodiment, a table 141 capable of moving the first member 201 in the second direction and a suction nozzle 143 capable of moving the second member 202 in the second direction are used as the position adjusting means 117. It is functioning.

  The backup stage 144 is a member that supports the peripheral edge of the first member 201 from below. The suction nozzle 143 descends from the placement head 142, and applies a clamping force for pressing the second member 202 to the first member 201 from below. It is. The backup stage 144 has a transparent portion, and can image the first member 201 and the second member 202 from below the backup stage 144.

  The imaging device 145 includes a camera, recognizes the first mark 221 and the second mark 222, and arranges the first member 201 and the second member 202 correctly based on the amount of change YV and other correction values. The image is provided to, for example, the line controller 108. As described above, the first mark distance BD1 before compression and the second mark distance BD2 before compression are detected from the image from the imaging device 145.

  The transport device 150 is a device that transports the first member 201 from the ACF attaching device 113 and delivers it to the table 141, and after attaching the second member 202, pulls the first member 201 from the table 141 and transports the first member 201 to the crimping device 115. .

  Next, the operation of the mounting device 114 will be described. FIG. 8 is a flowchart showing a mounting process of the mounting apparatus.

  First, the first mark distance BD1 before compression and the second mark distance BD2 before compression are acquired based on the image from the imaging device 145 (S101: first distance acquisition step).

  Next, the electrode information acquisition unit 415 acquires the electrode information from the storage unit 411 or the like (S102: an electrode information acquisition step).

  Next, the difference value DV that already exists is acquired (S103), and the amount of change in the second direction between the first member 201 and the second member 202 to be subsequently attached by the attachment device 114 is newly acquired as the difference value DV. The change amount deriving unit 417 derives the change amount YV based on the obtained first mark distance before compression BD1, the newly acquired second mark distance before compression BD2, and the obtained electrode information (S104: change amount derivation step).

  Next, the position control unit 418 controls the position adjusting unit 117 based on the change amount YV, other correction values, electrode information, and the like, so that conduction between the first electrode 211 and the corresponding second electrode 212 can be secured. Next, the positional relationship between the first member 201 and the second member 202 is adjusted based on the image from the imaging device 145 (S105: control step).

  Next, the second member 202 is mounted on the first member 201 by the mounting device 114 (S106: mounting step).

  Next, the first member 201 and the second member 202 attached by the attachment device 114 and transported by the transport device are thermocompression-bonded by the crimping device 115 to establish conduction between the first electrode 211 and the corresponding second electrode 212. Secure (S107: crimping step).

  Next, based on the thermocompression-bonded first member 201 and second member 202, the first distance BD1 of the first mark 221 and the second distance BD2 of the second mark 222, and the first member 201 and the second member 202 Is acquired by the second distance acquisition means 105 as an inspection machine (S108: second distance acquisition step).

  Next, the difference calculator 416 calculates a difference between the dimensional change amount of the first electrode 211 and the dimensional change amount of the second electrode 212 as a difference value DV (S109: difference calculation step).

  Next, the derived change amount YV is fed back to the position control unit 418 as a correction value (S110).

  If the above method is adopted, even when at least one of the first member 201 and the second member 202 undergoes elongation in the first direction by thermocompression bonding, the change amount YV is derived and the first member 201 and the Feedback can be given to the stage of attaching the two members 202. Therefore, by adjusting the distance in the second direction between the first member 201 and the second member 202 to be attached next in anticipation of elongation by thermocompression bonding, it is possible to secure an appropriate conduction point after thermocompression bonding. This makes it possible to supply the product stably. In particular, when the material of the first member 201 and the material of the second member 202 are both resin, the difference in elongation due to thermocompression bonding is large, and the difference in elongation occurs depending on the environment. By feeding back to the position adjustment in the mounting stage based on the above, stable production of the product is possible.

  Note that the present invention is not limited to the above embodiment. For example, another embodiment that is realized by arbitrarily combining the components described in this specification and excluding some of the components may be an embodiment of the present invention. Further, the gist of the present invention with respect to the above-described embodiment, that is, modified examples obtained by performing various modifications conceivable by those skilled in the art without departing from the meaning indicated by the words described in the claims are also included in the present invention. It is.

  For example, although a substrate of an organic EL display has been illustrated as the first member 201, a flat panel used for a liquid crystal display, a plasma display, or the like may be used, or a circuit film may be used.

  Further, in the case of the present embodiment, a circuit film in which an electronic component is mounted on a wiring film is illustrated as the second member 202. However, the present invention is not limited to this, and a rigid member such as a driver IC may be used. Absent.

  Further, a plurality of second members 202 may be attached to one first member 201. In this case, for each combination of the first member 201 and the second member 202, a different change amount YV may be fed back as a correction value.

  Further, in the case of the present embodiment, the case where both the first electrode 211 and the second electrode 212 are band-shaped and arranged so as to spread in the radial direction has been described, Electrodes may be used.

  The present invention can be used when a driver IC or a circuit film is attached to a flat panel used for an organic EL display, a liquid crystal display, a plasma display, and the like, and when the first member 201 and the second member are electrically connected. It is.

REFERENCE SIGNS LIST 100 Mounting system 101 Loader 102 Cleaning machine 103 Mounting device 104 Supply unit 105 Second distance acquisition means 106 Unloader 108 Line controller 109 Communication cable 113 Pasting device 114 Mounting device 115 Crimping device 117 Position adjusting means 141 Table 142 Positioning head 143 Suction nozzle 144 Backup stage 145 Imaging device 150 Transport device 201 First member 202 Second member 211 First electrode 212 Second electrode 221 First mark 222 Second mark 410 Control unit 411 Storage unit 412 Input unit 413 Display unit 414 Communication I / F unit 415 electrode information acquisition section 416 difference calculation section 417 change amount derivation section 418 position control section 430 control section 431 storage section 432 input section 433 display section 434 communication I / F section 435 mechanism section

Claims (2)

A second member having a plurality of second electrodes connected to the first electrode via an ACF (Anisotropic Conductive Film) is sequentially mounted on a first member having a plurality of first electrodes arranged in the first direction. Mounting device
In a second direction intersecting with the first direction, a position adjusting unit that adjusts a positional relationship between the first member and the second member,
A mounting device for mounting the first member and the second member,
A crimping device that ensures conduction between the first electrode and the second electrode,
The first mark distance before crimping, which is the distance between a pair of first marks provided on the first member with the first electrode interposed therebetween in the first direction before being crimped by the crimping device, and the second electrode First distance acquisition means for acquiring a pre-pressed second mark distance, which is a distance between a pair of second marks provided on the second member with the pinch therebetween,
Based on the first member and the second member that have been crimped by the crimping device, a first mark distance after crimping that is a distance between the pair of first marks, and a second mark after crimping that is a distance between the pair of second marks. Second distance obtaining means for obtaining the second mark distance,
From the first mark distance before crimping and the first mark distance after crimping, and from the second mark distance before crimping and the second mark distance after crimping, with the crimping by the crimping device, the first in the first direction A difference calculation unit that calculates a difference between the dimensional change amount of the electrode and the dimensional change amount of the second electrode,
The amount of change in the second direction between the first member and the second member to be subsequently attached by the attachment device is derived based on the difference value, the first mark distance before crimping, the second mark distance before crimping, and the electrode information. Change amount deriving unit,
A mounting device comprising: a position control unit that controls the position adjusting unit so that the first electrode and the corresponding second electrode can be electrically connected based on the derived amount of change. A second member having a plurality of second electrodes connected to the first electrode via an ACF (Anisotropic Conductive Film) is sequentially mounted on a first member having a plurality of first electrodes arranged in the first direction. Implementation method,
In a second direction intersecting with the first direction, an adjusting step of adjusting a positional relationship between the first member and the second member by position adjusting means,
Attachment step of attaching the first member and the second member, the positional relationship of which in the second direction has been adjusted, by an attachment device,
A crimping step of securing conduction between the attached first electrode and the second electrode by a crimping device,
The first mark distance before crimping, which is the distance between a pair of first marks provided on the first member with the first electrode interposed therebetween in the first direction before being crimped by the crimping device, and the second electrode A first distance obtaining step in which the first distance obtaining means obtains a pre-pressed second mark distance that is a distance between a pair of second marks provided on the second member with the pinch therebetween,
Based on the first member and the second member that have been crimped by the crimping device, a first mark distance after crimping, which is a distance between the pair of first marks, and a second mark after crimping, which is a distance between the pair of second marks. A second distance acquisition step in which the second distance acquisition means acquires the second mark distance,
A plurality of the first electrodes, and at least one of the plurality of the second electrodes is changed so that an interval between electrodes adjacent to each other in one of the second directions is reduced, the first electrode, and the second An electrode information acquisition step in which the electrode information acquisition unit acquires electrode information that is information on the arrangement state of the two electrodes,
From the first mark distance before crimping and the first mark distance after crimping, and from the second mark distance before crimping and the second mark distance after crimping, with the crimping by the crimping device, the first in the first direction A difference calculation step in which a difference calculation unit calculates a difference between the dimensional change amount of the electrode and the dimensional change amount of the second electrode,
The amount of change in the second direction between the first member and the second member to be subsequently mounted by the mounting device is changed based on the difference value, the first mark distance before crimping, the second mark distance before crimping, and the electrode information. A variation deriving step derived by the quantity deriving unit;
A position control step of controlling the position adjusting means based on the derived amount of change so that the second electrode corresponding to the first electrode can conduct.

Images