WO2011081093A1 - 実装方法及び実装装置 - Google Patents
実装方法及び実装装置 Download PDFInfo
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- WO2011081093A1 WO2011081093A1 PCT/JP2010/073351 JP2010073351W WO2011081093A1 WO 2011081093 A1 WO2011081093 A1 WO 2011081093A1 JP 2010073351 W JP2010073351 W JP 2010073351W WO 2011081093 A1 WO2011081093 A1 WO 2011081093A1
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Images
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Definitions
- the present invention relates to a mounting method and a mounting apparatus for mounting an element on a substrate.
- three-dimensional mounting technology has attracted attention as one method for integrating semiconductor devices.
- a substrate on which an integrated circuit has been built in advance is divided into dies, and a die (Known Good Die) that has been confirmed to be a non-defective product by a non-defective product discrimination test performed from the diced die before singulation ; KGD).
- KGD non-defective product discrimination test performed from the diced die before singulation
- chips As a method of stacking and mounting such dies (hereinafter referred to as “chips” or “elements”) on a substrate, a method of placing a plurality of chips on the substrate at once, or a method of mounting a plurality of chips on a substrate. There is a method of mounting sequentially.
- the electronic component mounting apparatus includes a tray that accommodates chips, a suction head that sucks and holds the chips, and a nozzle that discharges an adhesive for bonding the chips onto the substrate.
- the electronic component mounting apparatus sucks and takes out a chip from a tray containing the chip by a suction head using a vacuum suction force, and moves the suction head above the substrate while the chip is sucked.
- the adhesive agent is discharged and apply
- the mounting method for sequentially mounting such a plurality of chips on a substrate has the following problems.
- the present invention has been made in view of the above points, and when a plurality of chips are sequentially mounted on a substrate, it is not necessary to control the exact position of a suction head that sucks the chips, and the operation of the mounting apparatus
- a mounting method and a mounting apparatus capable of shortening the time required for mounting all of a plurality of chips on a substrate while minimizing the number of times of the above are provided.
- the present invention is characterized by taking the following means.
- the one element taken out by the take-out portion from the housing portion containing the plurality of elements is the surface of the substrate and is liquid.
- a mounting method including an application step of applying a liquid by the applied portion.
- a mounting apparatus that sequentially mounts a plurality of elements on a substrate, a housing portion that houses the plurality of elements, a substrate holding portion that holds the substrate, and a single housing housed in the housing portion.
- the take-out element is taken out, and the taken-out one element is placed on the surface of the substrate on one area where the liquid is applied, and is provided to be movable together with the take-out part.
- the application unit for applying the liquid to a region different from the one region on the surface of the substrate and the take-out unit for taking out one element are moved together with the application unit from the container side to the substrate side.
- a mounting apparatus having a moving unit is provided.
- the present invention when a plurality of chips are sequentially mounted on a substrate, it is not necessary to strictly control the position of the suction head that sucks the chips, and the number of operations of the mounting apparatus is minimized, and the substrate The time for mounting all of the plurality of chips on the top can be shortened.
- FIG. 1 It is a schematic front view including the partial cross section which shows the structure of the mounting apparatus which concerns on embodiment. It is sectional drawing which expands and shows the periphery of a suction head and a nozzle. It is the front view and perspective view which show an example of the shape of the head front-end
- FIG. 1 is a schematic front view including a partial cross section showing the configuration of the mounting apparatus according to the present embodiment.
- FIG. 2 is an enlarged sectional view showing the periphery of the suction head and the nozzle.
- FIGS. 3A and 3B are a front view and a perspective view, respectively, showing an example of the shape of the head tip of the suction head.
- FIG. 4 is a cross-sectional view showing the structure of the tray. 4A shows an example of the structure of the tray shown in FIG. 1, and FIG. 4B shows another example having a structure different from that of the tray shown in FIG.
- the mounting apparatus 100 includes a processing chamber 1, a tray table 2, a stage 3, a robot 4, a suction head 5, and a nozzle 6.
- the mounting apparatus 100 is also provided with a loading / unloading port (not shown) and a transfer machine (not shown) for transferring the tray 20 and the substrate 30.
- the processing chamber 1 is provided so as to surround the tray base 2, the stage 3, the robot 4, the suction head 5, and the nozzle 6. Moreover, the process chamber 1 is provided so that the atmosphere and pressure inside the enclosed chamber can be controlled. Connected to the processing chamber 1 is a supply device (not shown) for introducing a gas such as clean air or nitrogen whose temperature and humidity are controlled, and a pump (not shown) capable of exhausting the inside, and the pressure of the processing chamber 1 is also adjusted according to the processing. Be controlled.
- the tray base 2 is provided on the lower side in the processing chamber 1.
- the tray base 2 fixes and holds the tray 20 that accommodates the plurality of chips 40.
- the stage 3 is also provided on the lower side in the processing chamber 1 so as to be aligned with the tray base 2 in the horizontal direction.
- the stage 3 holds the substrate 30 fixedly.
- the tray table 2 and the stage 3 are preferably placed on the same plane as much as possible in order to minimize the operation of the robot 4.
- the tray 20 corresponds to a storage section in the present invention.
- the stage 3 corresponds to the substrate holding part in the present invention.
- the chip 40 corresponds to an element in the present invention.
- the robot 4 is provided in the processing chamber 1 so as to fix a suction head 5 and a nozzle 6 described later.
- a suction head 5 and a nozzle 6 are fixed to the robot 4 through a spacer 7 so as to be adjacent to each other.
- the robot 4 is moved not only in the plane direction (the direction along the plane perpendicular to the plane of FIG. 1 including the left and right direction in FIG. 1) but also in the vertical direction in FIG. 1 by the rail member 8 installed in the processing chamber 1. Can also move freely.
- the robot 4 moves the suction head 5 integrally with the nozzle 6 from above the tray 20 to above the substrate 30 held on the stage 3.
- the robot 4 corresponds to a moving unit in the present invention.
- the suction head 5 is fixed to the robot 4.
- the suction head 5 sucks the chip 40.
- the suction head 5 sucks the chip 40 accommodated in the tray 20 above the tray 20 and removes it from the tray 20.
- the suction head 5 releases the suction above the substrate 30 held by the stage 3.
- the chip 40 is placed in a region 31 to be described later where water is applied to place the chip 40.
- the suction head 5 has a head main body 51 and a head tip 52.
- the head main body 51 is connected to an exhaust unit (not shown), and the exhaust unit evacuates the inside of the head main body 51, so that the chip is adsorbed by vacuum suction at the head tip 52.
- the suction head 5 corresponds to the suction portion in the present invention and corresponds to the take-out portion in the present invention. Further, the suction head 5 is not limited to vacuum suction, and may be one that sucks the chip by other known suction methods such as electrostatic suction.
- a picking head that can pick up a chip with an arm or the like and take it out from the tray, and release the chip held on the substrate and place it on the substrate may be used.
- the takeout head also corresponds to the takeout portion in the present invention.
- the shape of the head tip 52 may be an example as shown in FIG.
- an exhaust hole 55 is formed at the center of the head tip 52 so that the head tip 52 communicates with an opening 54 formed in the lower surface 53 that is the tip.
- a groove 56 is formed on the lower surface 53 in a cross shape with the opening 54 as an intersection.
- the exhaust hole 55 is connected to the exhaust unit described above via the head main body 51.
- the groove 56 is continuously formed up to the peripheral edge of the substantially circular lower surface 53 so that the suction force by vacuum suction of the suction head 5 is adjusted and the chip held by suction is easily dropped when the suction is released. Has been.
- the nozzle 6 is fixed to the robot 4.
- the nozzle 6 applies, for example, water to the surface of the substrate 30.
- the nozzle 6 can supply not only water but also various other liquids or a gel substance having a low viscosity to some extent.
- a dispenser can be used as the nozzle 6.
- the nozzle 6 has a nozzle body 61 and a nozzle tip 62.
- the nozzle body 61 stores water 63 therein.
- the nozzle body 61 is connected to a pressure unit (not shown), and the pressure unit pressurizes the space inside the nozzle body 61 to discharge water from the nozzle tip 62.
- the nozzle 6 corresponds to the coating portion in the present invention. Further, the nozzle 6 is not limited to a dispenser, and may apply a liquid using another known discharge method or application method such as a syringe or an inkjet head.
- the suction head 5 and the nozzle 6 are adjacent to each other through a spacer 7.
- the spacer 7 is provided such that when the suction head 5 is positioned above one chip, the nozzle 6 is positioned above a chip adjacent to the one chip. That is, when the nozzle 6 places one chip on the one area 31 where the suction head 5 is the surface of the substrate 30 and water is applied, the spacer 6 is placed in the area 31 adjacent to the one area. It is provided with a width dimension (dimension D shown in FIG. 2) so that water can be applied.
- the spacer 7 has an optimum width dimension according to the size of the chip 40 to be mounted on the substrate 30 and the predetermined pitch P of each region 31 on which the plurality of chips 40 are mounted on the substrate 30. Can be exchanged for D. Thereby, the center-to-center distance L between the center position of the head tip portion 52 of the suction head 5 and the center position of the nozzle tip portion 62 of the nozzle 6 can be made substantially equal to the predetermined pitch P. That is, the nozzle 6 is provided corresponding to a predetermined pitch P so that the interval L with the suction head 5 can be changed.
- the change of the pitch P can be realized by using a variable structure using a small ball screw, but the use of the spacer 7 is preferable from the viewpoint of simplifying the structure.
- the tray 20 has a main body 21.
- the main body 21 has a rectangular shape in plan view.
- the surface of the upper wall 23 of the main body 21 is partitioned into rectangles by a partition wall 24, and a plurality of chip storage areas 25 that are areas for storing the chips 40 are formed.
- the tray 20 is made of, for example, quartz or transparent plastic that can be manufactured at a lower cost.
- the tray 20a has a bottom surface of the chip storage area 25a as shown in FIG. 4B so that the chip 40 can be easily taken out by vacuum suction by the suction head 5.
- a through hole 26 penetrating through the main body 21 may be formed between the bottom of the tray 20a.
- FIG. 5 is a flowchart for explaining the procedure of each step of the mounting method according to the present embodiment.
- FIG. 6 is a cross-sectional view showing a configuration of a substrate and a chip prepared in advance.
- 7A to 7D are schematic cross-sectional views showing the state of the chip and the substrate in each step of the mounting method according to the present embodiment.
- the mounting method according to the present embodiment includes a carry-in process (step S11), a preliminary movement process (step S12), a preliminary application process (step S13), a return process (step S14), and an adsorption process ( Step S15), an extraction step (Step S16), a movement step (Step S17), a contact step (Step S18), a coating step (Step S19), and a release step (Step S20).
- a substrate 30 having a size that can accommodate all the required number of chips, for example, semiconductor chips, in a desired layout and has sufficient rigidity to withstand the weight of the required number of chips is prepared in advance.
- a region 31 on which the chip 40 is placed on the substrate 30 is formed on the surface of the substrate 30.
- the size and shape of the region 31 substantially match the size and shape of the chip 40 placed thereon, respectively.
- the region 31 has hydrophilicity.
- a region 31 can be easily realized by using, for example, a hydrophilic silicon dioxide (SiO 2 ) film. That is, by forming a SiO 2 film (thickness is, for example, 0.1 ⁇ m) thinly on the entire mounting surface of the substrate 30 by a known method, and then selectively removing the SiO 2 film by a known etching method. Can be easily obtained.
- SiO 2 silicon dioxide
- the region 31 has hydrophilicity, when a small amount of water is placed on the region 31, the water becomes familiar with the entire surface of the region 31 (in other words, the entire surface of the region 31 is A thin water film (water droplet) 32 covering the entire surface is formed. Since all the regions 31 are formed in an island shape and separated from each other, the water does not flow out from the region 31 to the outside.
- Materials that can be used as the hydrophilic region 31 include Si 3 N 4 in addition to SiO 2 , but a two-layer film of aluminum and alumina (Al / Al 2 O 3 ), two layers of tantalum and tantalum oxide. A layer film (Ta / Ta 2 O 5 ) or the like can also be used.
- the region other than the region 31 on the surface of the substrate 30 on which the chip 40 is placed is not hydrophilic.
- the substrate 30 itself is formed of hydrophobic single crystal silicon (Si), fluorine resin, silicone resin, Teflon (registered trademark) resin, polyimide resin, resist, wax, BCB (benzocyclobutene), or the like. Is preferred.
- the mounting surface of the substrate 30 on which the region 31 is formed is preferably covered with polycrystalline silicon, amorphous silicon, fluorine resin, silicone resin, Teflon (registered trademark) resin, polyimide resin, resist, wax, BCB, or the like.
- the region 31 may be selectively hydrophilized by an ink jet technique or the like.
- the surface of the chip may be hydrophilized in advance.
- a hydrophilic region 41 is formed on one surface of each chip 40.
- the region 41 can be easily realized, for example, by covering the entire surface of the chip 40 with a hydrophilic SiO 2 film. Further, when the chip 40 is transferred (transferred) from the substrate 30 to another substrate on the surface opposite to the surface on which the region 41 of each chip 40 is formed, the other substrate and the chip 40 are transferred. A connection portion for electrical connection may be formed.
- a semiconductor wafer having a diameter of 300 mm can be used as the substrate 30.
- the chip 40 for example, a square semiconductor chip formed on a semiconductor wafer having a diameter of 300 mm and obtained by dicing, for example, having a side length of 5 mm can be used.
- a through electrode having a diameter of 5 ⁇ m may be formed in the region 41 of the chip 40 and the region 31 of the substrate 30, for example.
- step S ⁇ b> 11 the tray 20 containing the chips 40 and the substrate 30 are carried into the mounting apparatus 100.
- FIG. 7A (a) shows the state of the chip and substrate in step S11. As shown in FIG. 7A (a), the tray 20 that houses the chips 40 and the substrate 30 on which the chips 40 are mounted and mounted are carried into the processing chamber 1 of the mounting apparatus 100.
- the substrate 30 is fixedly held on the stage 3 as shown in FIG. 7A to 7D, the processing chamber 1, the tray table 2, and the stage 3 are not shown.
- step S ⁇ b> 12 the suction head 5 is moved upward of the substrate 30 together with the nozzle 6.
- FIG. 7A (b) shows the state of the chip and substrate in step S12.
- the suction head 5 is moved integrally with the nozzle 6 by the robot 4 over the area 31-1 on the surface of the substrate 30 where the first chip 40-1 is placed.
- Regions 30-1 to 30-n are collectively referred to as region 30.
- step S13 water is applied to place the first chip 40-1.
- FIG. 7A (c-1) and FIG. 7A (c-2) show the state of the chip and the substrate in step S13. As shown in FIG. 7A (c-1), water is discharged from the nozzle 6 onto the surface 31 of the substrate 30 where the first chip is placed.
- the region 31 has been subjected to a hydrophilic treatment in advance.
- the water discharged from the nozzle 6 spreads over the entire surface of the region 31 subjected to the hydrophilic treatment, and a thin water film 32 covering the entire surface of the region 31 is formed. Is done.
- the water film 32 is naturally curved into a gentle convex shape by surface tension.
- the amount of water is preferably adjusted to such an extent that a water film 32 as shown in FIG. 7A (c-2) is formed on the region 31, for example.
- water used in the present embodiment, “ultra pure water” generally used in a conventional semiconductor manufacturing process is preferable. Further, in order to enhance the self-alignment function of the chip 40 with respect to the region 31 of the substrate 30, “ultra pure water” to which an appropriate additive for increasing the surface tension of water is added is more preferable. By strengthening the self-alignment function, the positional accuracy of the chip 40 with respect to the region 31 of the substrate 30 is improved. As described above, silicon dioxide (SiO 2 ) can be suitably used as the “hydrophilic” substance.
- liquids such as glycerin, acetone, alcohol, and SOG (Spin On Glass) material are suitable.
- an adhesive having an appropriate viscosity
- a reducing liquid such as formic acid.
- a material having “lyophilicity” with respect to such a liquid is necessary. Examples of such a material include silicon nitride (Si 3 N 4 ), various metals, Examples include thiol and alcanthiol.
- step S ⁇ b> 14 the suction head 5 is returned to the upper side of the tray 20 integrally with the nozzle 6.
- FIG. 7B (d) shows the state of the chip and the substrate in step S14. As shown in FIG. 7B (d), after discharging the water, the robot 4 moves so that the suction head 5 is positioned above the first chip 40-1 to be taken out on the tray 20, and the suction head 5 The nozzle 6 is returned to the upper side of the tray 20 integrally with the nozzle 6.
- the chips 40-1 to 40-n are collectively referred to as the chip 40.
- step S15 the suction process of step S15 is performed on the first chip 40-1.
- step S ⁇ b> 15 the chip 40 accommodated in the tray 20 is sucked by the suction head 5.
- FIG. 7B (e) shows the state of the chip and substrate in step S15.
- the robot 4 lowers the suction head 5 until it comes into contact with the first chip 40-1 so as not to damage the chip 40 or the tray 20, and the suction head 5 moves the chip 40-1 over. Adsorb.
- Whether or not it is in contact with the chip 40 may be determined in advance by controlling the positional relationship with the tray 20 by a computer, or a pressure applied to the suction head 5 when a pressure detector is provided and in contact with the chip. May be detected and determined. Further, an optical distance measuring device may be provided in the robot 4 or the suction head 5.
- step S16 the extraction process of step S16 is performed on the first chip 40-1.
- step S ⁇ b> 16 the chip 40 sucked by the suction head 5 is taken out from the tray 20.
- FIG. 7B (f) shows the state of the chip and the substrate in step S16.
- the robot 4 translates the suction head 5 from above the tray 20 to above the substrate 30. Raise to position.
- step S17 the suction head 5 is moved integrally with the nozzle 6 from above the tray 20 to above the substrate 30.
- FIG. 7B (g) shows the state of the chip and the substrate in step S17.
- the suction head 5 is raised to the parallel movement position, the first chip 40-1 sucked by the suction head 5 by the robot 4 is subsequently placed on the surface of the substrate 30 and the first chip 40-1 is mounted.
- the suction head 5 is moved integrally with the nozzle 6 so as to be positioned above the area 31-1 to be placed.
- the position of the first chip 40-1 sucked by the moved suction head 5 may not be strictly aligned with the position of the region 31-1. That is, the position of the suction head 5 may not be adjusted strictly.
- step S ⁇ b> 18 the suction head 5 is brought close to the substrate 30 to bring the chip 40 into contact with the water film 32.
- step S19 a water film 32 is applied to mount the next chip 40.
- FIG. 7B (h) shows the state of the chip and the substrate in step S18 and step S19.
- the suction head 5 is lowered integrally with the nozzle 6 by the robot 4 to the surface of the substrate 30 and close to the area 31-1 on which the first chip 40-1 is placed. Then, the first chip 40-1 is brought into contact with the water film 32 applied to the region 31-1, close to the substrate 30.
- the suction head 5 may be lowered by the robot 4 to such a height that the chip 40 sucked by the suction head 5 is in contact with the surface of the water film 32 applied to the region 31. Therefore, the suction head 5 does not have to be lowered until the chip 40 sucked by the suction head 5 reaches the region 31.
- the nozzle 6 is located in the area adjacent to the area 31-1 and the next chip 40-1. -2 is discharged to the region 31-2 where the -2 is placed.
- step S ⁇ b> 20 the suction of the suction head 5 is released and the chip 40 is placed on the substrate 30.
- FIG. 7B (i) shows the state of the chip and the substrate in step S19 and step S20.
- the suction of the suction head 5 is released, and the first chip 40-1 is separated from the suction head 5.
- the first chip 40-1 released from the adsorption to the adsorption head 5 is adsorbed by the surface tension of the water film 32 on the surface 31 of the substrate 30 where the first chip 40-1 is placed. To do.
- the water film 32 gradually evaporates, the water film 32 is not shown in FIG. 7B (i). Even after the water film 32 disappears due to evaporation, the adsorption state between the chip 40 and the corresponding region 31 on the surface of the substrate 30 is maintained.
- the size of the chip 40 and the size of the region 31 are made to coincide with each other, so that the chip 40 self-aligns to a desired position (region 31) by the surface tension of water, as will be described later. Placed. That is, in this embodiment, it is not necessary to precisely control the position of the robot 4 to align the positions of the chip 40 and the substrate 30. For this reason, after the suction head 5 releases the suction and places the chip 40 on the substrate 30, the robot 4 can quickly shift to the operation of moving the suction head 5 and the nozzle 6 to the upper side of the tray 20. In addition, the time required for placing the chip 40 on the substrate 30 can be shortened.
- step S19 may be performed after step S17 until the next step of step S20 is performed, and may be performed before step S18, at the same time as step S20, or immediately after step S20, not at step S18.
- Good That is, when the suction of the suction head 5 is released and the first chip 40-1 is placed in the area 31-1, water is applied to the area 31-2 where the next chip 40-2 is placed. Good.
- the chip 40 adsorbed by the adsorption head 5 is above the surface of the water film 32 applied to the region 31 (for example, a height of about 0.5 mm from the surface of the substrate 30).
- the suction of the suction head 5 may be released, and the chip 40 may be dropped onto the surface of the water film 32 applied to the region 31.
- a film of water is used to place the first chip 40-1 on the surface of the substrate 30 from the tray 20.
- the first chip 40-1 is placed by the suction head 5 in the region (first region) 31-1 where 32 is applied. Further, when the first chip 40-1 is placed in the first area 31-1 by the suction head 5, the second chip 40-2 is placed in the area 31-2 adjacent to the first area 31-1.
- a water film 32 is applied by the nozzle 6.
- FIG. 7C (j) to FIG. 7C (o) show the state of the chip and the substrate in each step of Step S14 to Step S20 performed for the next chip.
- FIGS. 7C (j) to 7C (o) are different from FIGS. 7B (d) to 7B (i), respectively, except that they are performed for the first chip and the next chip. It is the same. Further, the individual operations in each step have been described above, and will be omitted.
- the second chip 40-2 in the area adjacent to the first area 31-1 is loaded from the tray 20.
- the second chip 40-2 is placed by the suction head 5 in the region (second region) 31-2 where the water film 32 is applied for placement. Further, when the second chip 40-2 is placed in the second area 31-2 by the suction head 5, the area adjacent to the second area 31-2 (area where the third chip is placed).
- a water film 32 is applied by the nozzle 6 in order to place the next chip 40.
- FIG. 7D (p) to FIG. 7D (r) show the state of the chip and the substrate in step S17, step S18, and step S20 for the last (nth) chip, respectively.
- FIGS. 7D (p) to 7D (r) when the last (nth) chip 40-n is placed in the last (nth) region 31-n by the suction head 5, This is because it is not necessary to apply water by the nozzle 6 in order to place the chip.
- the first (first) chip 40-1 to the last (nth) chip 40-n arranged in one row are sequentially placed on the substrate 30 at a predetermined pitch P. Then, by repeating such a series of operations a plurality of times (m times), a plurality of chips 40 are arranged in a matrix in m rows and n columns on the substrate 30, and sequentially at a predetermined pitch P in the column direction. It is mounted so that it may be arranged in.
- the substrate 30 on which all the chips 40 are placed is carried out of the processing chamber 1. Further, it may be carried out after being heated by a heater (not shown) provided in the stage 3 to enhance the adsorption. In addition, the tray 20 which has been emptied after placing all the chips 40 is also carried out of the processing chamber 1.
- the mounting method according to the present embodiment can minimize the number of operations of the mounting apparatus and reduce the time for placing all of the plurality of chips on the substrate.
- the nozzle 6 is provided integrally with the suction head 5.
- the nozzle 6 has a predetermined pitch P when the suction head 5 places the one chip 40-1 on the water-applied region (one region) 31-1. Is provided so that water for mounting the next chip 40-2 can be applied to the adjacent region 31-2. Therefore, from the position where one chip 40-1 is placed (one area 31-1) to the position where water is applied to place the next chip 40-2 (adjacent area 31-2), The robot 4 does not need to move the suction head 5 and the nozzle 6.
- the time required to move the suction head 5 and the nozzle 6 that have sucked one chip 40-1 together from the upper side of the tray 20 to the upper side of the substrate 30 by the robot 4 (the time required for step S17) The same) is 0.5 seconds.
- the suction head 5 places the chip 40 the suction head 5 and the nozzle 6 are integrated with the robot 4 from the position (one region 31-1) where the suction head 5 places the chip 40.
- the time required for the nozzle 6 to move to a position (adjacent area 31-2) for applying water to place the next chip 40-2 is 0.5 seconds.
- the time required to move the suction head 5 after placing the chip 40 integrally with the nozzle 6 from the upper side of the substrate 30 to the upper side of the tray 20 by the robot 4 (same as the time required for step S14). Is 0.5 seconds.
- the operation of moving the suction head 5 and the nozzle 6 integrally from the one region 31-1 to the adjacent region 31-2 by the robot 4 and the time required for the operation are reduced. be able to. Therefore, the operation of the robot 4 for mounting on the substrate 30 of one chip 40 and the time required for the operation of the robot 4 are integrated with the suction head 5 and the nozzle 6 together from the one area 31-1. This can be reduced to 2/3 of the case where the movement to the area 31-2 is included.
- FIG. 8 is a plan view and a cross-sectional view showing a state in which the chip is placed in a self-aligned state from being in contact with the surface of water while being twisted with respect to the region.
- FIG. 8A to FIG. 8D sequentially show changes with time.
- the upper stage is a plan view and the lower stage is a side view.
- FIG. 9 is a plan view and a cross-sectional view showing a state from the state where the chip is placed in a self-aligned state to the state where it is in contact with the surface of the water in a state where the chip is displaced in the horizontal direction.
- FIG. 9A to FIG. 9D sequentially show changes with time. In each of FIGS.
- FIG. 10 is a plan view showing a region of the chip surface that has been subjected to a hydrophilic treatment.
- the region 41 of the chip 40 comes into contact with the region 31 of the substrate 30 in a twisted state, the water from the water film 32 formed in the region 31 is hydrophilically treated as shown in FIG. It spreads in the area 41 that has been subjected to. Thereafter, the tip 40 is rotated from FIG. 8B to FIG. 8C so that the region 31 and the region 41 designed to have the same dimensions overlap almost entirely due to the surface tension of water. Further, it moves while narrowing the distance between the region 41 and the region 31. Then, the region 41 of the chip 40 finally overlaps with the region 31 of the substrate 30 almost as shown in FIG. 8D.
- the entire surface of the surface of the chip 40 is subjected to the hydrophilic treatment with the region 41, so the surface of the peripheral portion of the chip 40 is also subjected to the hydrophilic treatment.
- the central portion of the chip 40a may be the region 41a, and a hydrophobic region (hydrophobic frame) 41b that is not subjected to the hydrophilization treatment may be provided on the peripheral portion of the chip 40a.
- the chip can be accurately aligned with the area where the chip is placed.
- the method of forming the hydrophobic frame 41b is not limited, but the hydrophobic frame 41b can be formed by making the surface of the region 41a, for example, a hydrophilic SiO 2 film and the surface of the hydrophobic frame 41b, for example, Si.
- one chip is sucked and taken out from a tray containing a plurality of chips by the suction head, and the taken out one chip is the surface of the substrate and coated with water.
- a placement process for placing the region is performed.
- water is applied to the area where the next chip on the surface of the substrate is placed by a nozzle.
- alignment is performed in a self-aligned manner between the chip and the substrate. Therefore, it is not necessary to strictly control the position of the suction head that sucks the chips, minimizing the number of operations of the mounting apparatus, and shortening the time for placing all of the plurality of chips on the substrate. .
- Step S13 in order to place the first chip, after performing Step S13, Step S14 is performed, and the suction head is moved up and back on the tray integrally with the nozzle.
- step S13 may be performed between step S17 and step S18.
- the suction head is moved integrally with the nozzle.
- the suction head can be moved together with the nozzle, and the suction head may be separated from the nozzle and may perform the same movement operation.
- the suction head is moved integrally with the nozzle from the upper side of the tray to the upper side of the substrate.
- the suction head can be moved integrally with the nozzle from the tray side to the substrate side.
- the suction head may be moved from the side of the tray to the side of the substrate integrally with the nozzle, with the tray and the substrate standing vertically.
- FIG. 11 is a flowchart for explaining the procedure of each step of the mounting method according to this modification.
- FIG. 12 is a schematic cross-sectional view showing the state of the chip and the substrate in each step of the mounting method according to this modification.
- the mounting method according to this modification is different from the mounting method according to the embodiment in that water is applied to the surface of the chip that has been subjected to a hydrophilic treatment.
- the mounting method according to the present modification can be performed using the mounting apparatus according to the embodiment described with reference to FIG.
- the mounting apparatus has a chip-side nozzle (not shown in FIG. 1) for applying a liquid inside the processing chamber.
- the chip-side nozzle applies a liquid to the surface of the chip that is in contact with water applied to the area on which the chip is placed on the substrate.
- the mounting method according to this modification includes a carry-in process (step S31), a preliminary movement process (step S32), a preliminary coating process (step S33), a return process (step S34), and an adsorption process (step S35), an extraction process (step S36), an element side application process (step S37), a movement process (step S38), a contact process (step S39), an application process (step S40), and a release process (step S41).
- the substrate and chip prepared in advance can be the same as in the embodiment.
- Steps S31 to S33 are performed. Steps S31 to S33 are the same as steps S11 to S13 in the embodiment. Further, the state of the chip and the substrate in step S31 and step S32 is as shown in FIGS. 7A (a) and 7A (b). Further, the state of the chip and the substrate in step S33 is as shown in FIGS. 7A (c-1) and 7A (c-2).
- Steps S34 to S36 are performed on the first chip 40-1.
- Steps S34 to S36 are the same as steps S14 to S16 in the embodiment.
- the states of the chip and the substrate in steps S34 to S36 are as shown in FIGS. 12A to 12C, which are the same as those in FIGS. 7B (d) to 7B (f), respectively.
- step S37 water is applied to the surface of the chip 40.
- FIG. 12D shows the state of the chip and the substrate in step S37.
- a water film on the surface of the chip 40, which is in contact with the water film 32 applied to the region 31 on which the chip 40 is placed on the surface of the substrate 30.
- (Water droplet) 42 is applied.
- the suction head 5 that has attracted the first chip 40-1 is moved by the robot 4 onto the chip-side nozzle provided in the processing chamber 1, and the lower surface of the first chip 40-1 that has been attracted to the suction head 5 is moved.
- water is discharged from the tip side nozzle.
- the region 41 on the surface of the chip 40 that comes into contact with the water film 32 applied to the region 31 has been subjected to a hydrophilic treatment in advance. For this reason, as shown in FIG. 12D, the water discharged from the chip side nozzle spreads to the surface 41 of the chip 40 and to the region 41 in contact with the water film 32 applied to the region 31. Applied.
- step S38 is performed on the first chip 40-1.
- the process of step S38 is the same as the process of step S17 in the embodiment. Further, the state of the chip and the substrate in step S38 is as shown in FIG.
- step S39 the suction head 5 is brought close to the substrate 30, and the water film 42 applied to the first chip 40-1 and the water film 32 applied to the region 31 are brought into contact with each other.
- step S40 water is applied to place the next chip 40-2.
- FIG. 12F shows the state of the chip and the substrate in step S39 and step S40.
- the robot 4 places the suction head 5 on the substrate 30 integrally with the nozzle 6 as shown in FIG. 12 (f).
- the water film 42 applied to the surface of the first chip 40-1 and the water film 32 applied to the region 31-1 are brought into contact with each other by being lowered to a position (region 31-1) and close to the substrate. .
- the nozzle 6 causes the region Water is discharged into an area 31-2 next to 31-1, where the next chip 40-2 is placed.
- step S41 is the same as the process of step S20 in the embodiment. Further, the state of the chip and the substrate in step S41 is as shown in FIG.
- the first chip 40-1 is placed on the first area 31-1 from the tray 20 by the suction head 5.
- the second chip 40-2 is placed in the area 31-2 adjacent to the first area 31-1.
- a water film 32 is applied by the nozzle 6 for placement.
- step S40 is performed for the nth chip 40-n.
- the first (first) chip 40-1 to the last (nth) chip 40-n arranged in one row are sequentially placed at a predetermined pitch P.
- a plurality of chips 40 are arranged in a matrix in m rows and n columns on the substrate 30, and sequentially at a predetermined pitch P in the column direction. It is mounted so that it may be arranged in.
- one chip is picked up and taken out from a tray containing a plurality of chips by a suction head, and the taken out one chip is placed on one surface of the substrate where water is applied.
- a placement process is performed.
- water is applied to the area where the next chip on the surface of the substrate is placed by a nozzle.
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Abstract
Description
(実施の形態)
最初に、図1~図10を参照し、実施の形態に係る実装方法及び実装装置について説明する。
(実施の形態の変形例)
次に、図11及び図12を参照し、実施の形態の変形例に係る実装方法について説明する。
3 ステージ
4 ロボット
5 吸着ヘッド
6 ノズル
7 スペーサ
20 トレイ
30 基板
31 領域
32 水の膜(水滴)
40 チップ
100 実装装置
Claims (16)
- 複数の素子を基板上に順次実装する実装方法において、
前記複数の素子を収容した収容部から取出部により取り出した一の素子を、前記基板の表面であって液体が塗布された一の領域に載置する載置工程と、
前記一の領域に前記一の素子を載置する際に、前記基板の表面の前記一の領域と異なる領域に、前記取出部と共に移動可能に設けられた塗布部により液体を塗布する塗布工程と
を有する、実装方法。 - 前記塗布工程において、前記一の素子の次の素子を載置する領域に、液体を塗布する、請求項1に記載の実装方法。
- 前記取出部は、素子を吸着して取り出す吸着部であり、
前記載置工程において、前記一の素子を吸着した前記吸着部を前記基板に近づけて、前記一の素子を前記一の領域に塗布された液体と接触させ、前記一の素子が前記液体と接触する際に、前記吸着部の吸着を解除する、請求項1に記載の実装方法。 - 前記一の素子を取り出した前記取出部を、前記塗布部と共に、前記収容部側から前記基板側へ移動させる移動工程を有する、請求項1に記載の実装方法。
- 前記一の領域と、前記一の領域と異なる領域とは、親水化処理がなされている、請求項1に記載の実装方法。
- 前記一の素子の表面であって前記一の領域に塗布された液体と接触する領域は、親水化処理がなされている、請求項1に記載の実装方法。
- 前記載置工程において、前記一の領域に塗布された液体により前記一の素子と前記基板との位置合わせを行う、請求項1に記載の実装方法。
- 前記一の素子の表面であって前記一の領域に塗布された液体と接触する領域に、液体を塗布する素子側塗布工程を有する、請求項1に記載の実装方法。
- 前記実装方法は、前記複数の素子を所定のピッチで前記基板上に実装するものであり、
前記塗布部は、前記所定のピッチに対応して前記取出部との間隔を変更可能に設けられた、請求項1に記載の実装方法。 - 複数の素子を基板上に順次実装する実装装置において、
前記複数の素子を収容する収容部と、
前記基板を保持する基板保持部と、
前記収容部に収容された一の素子を取り出し、取り出した前記一の素子を、前記基板の表面であって液体が塗布された一の領域に載置する取出部と、
前記取出部と共に移動可能に設けられ、前記一の領域に前記一の素子を載置する際に、前記基板の表面の前記一の領域と異なる領域に液体を塗布する塗布部と、
前記一の素子を取り出した前記取出部を、前記塗布部と共に、前記収容部側から前記基板側へ移動させる移動部と
を有する、実装装置。 - 前記塗布部は、前記一の領域に前記一の素子を載置する際に、前記一の素子の次の素子を載置する領域に、液体を塗布する、請求項10に記載の実装装置。
- 前記取出部は、素子を吸着して取り出す吸着部であり、
前記移動部は、前記一の素子を吸着した前記吸着部を前記基板に近づけて、前記一の素子を前記一の領域に塗布された液体と接触させ、
前記吸着部は、前記一の素子が前記一の領域に塗布された液体と接触する際に、吸着を解除する、請求項10に記載の実装装置。 - 前記一の領域と、前記一の領域と異なる領域とは、親水化処理がなされている、請求項10に記載の実装装置。
- 前記一の素子の表面であって前記一の領域に塗布された液体と接触する領域は、親水化処理がなされている、請求項10に記載の実装装置。
- 前記一の領域に塗布された液体により前記一の素子と前記基板との位置合わせを行う、請求項10に記載の実装装置。
- 前記実装装置は、前記複数の素子を所定のピッチで前記基板上に実装するものであり、
前記塗布部は、前記所定のピッチに対応して前記取出部との間隔を変更可能に設けられた、請求項10に記載の実装装置。
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KR1020127019761A KR101402378B1 (ko) | 2009-12-28 | 2010-12-24 | 실장 방법 및 실장 장치 |
US13/519,243 US8749068B2 (en) | 2009-12-28 | 2010-12-24 | Mounting method and mounting device |
CN201080059770.3A CN102696098B (zh) | 2009-12-28 | 2010-12-24 | 安装方法和安装装置 |
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CN (1) | CN102696098B (ja) |
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EP2915183A4 (en) * | 2012-10-30 | 2016-06-08 | Cbrite Inc | LED CHIP DISPERSION IN DISPLAY DEVICES AND LIGHTING PANELS WITH NEIGHBORHOOD RELATION PRESERVATION |
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EP2889900B1 (en) * | 2013-12-19 | 2019-11-06 | IMEC vzw | Method for aligning micro-electronic components using an alignment liquid and electrostatic alignment as well as corresponding assembly of aligned micro-electronic components |
JP6278760B2 (ja) * | 2014-03-11 | 2018-02-14 | 株式会社ディスコ | チップ整列方法 |
WO2018131139A1 (ja) | 2017-01-13 | 2018-07-19 | ヤマハ発動機株式会社 | 部品実装装置 |
FR3063832B1 (fr) * | 2017-03-08 | 2019-03-22 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Procede d'auto-assemblage de composants microelectroniques |
US10937674B2 (en) * | 2018-02-13 | 2021-03-02 | Mikro Mesa Technology Co., Ltd. | Method for transferring micro device |
US10930528B2 (en) * | 2018-02-13 | 2021-02-23 | Mikro Mesa Technology Co., Ltd. | Method for transferring micro device |
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2009
- 2009-12-28 JP JP2009297626A patent/JP5411689B2/ja not_active Expired - Fee Related
-
2010
- 2010-12-24 US US13/519,243 patent/US8749068B2/en not_active Expired - Fee Related
- 2010-12-24 KR KR1020127019761A patent/KR101402378B1/ko not_active IP Right Cessation
- 2010-12-24 WO PCT/JP2010/073351 patent/WO2011081093A1/ja active Application Filing
- 2010-12-24 CN CN201080059770.3A patent/CN102696098B/zh not_active Expired - Fee Related
- 2010-12-27 TW TW099145988A patent/TW201140707A/zh unknown
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JPS60227428A (ja) * | 1984-04-26 | 1985-11-12 | Shinkawa Ltd | チツプボンデイング装置 |
JPH07176552A (ja) * | 1993-12-17 | 1995-07-14 | Matsushita Electric Ind Co Ltd | ダイボンディング装置 |
JP2002290098A (ja) * | 2001-03-26 | 2002-10-04 | Sanyo Electric Co Ltd | 電子部品の実装装置 |
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US8749068B2 (en) | 2014-06-10 |
KR101402378B1 (ko) | 2014-06-03 |
JP5411689B2 (ja) | 2014-02-12 |
CN102696098A (zh) | 2012-09-26 |
KR20120106876A (ko) | 2012-09-26 |
JP2011138901A (ja) | 2011-07-14 |
TW201140707A (en) | 2011-11-16 |
US20120292775A1 (en) | 2012-11-22 |
CN102696098B (zh) | 2014-12-24 |
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