WO2012147512A1 - 除膜方法、除膜用ノズルおよび除膜装置 - Google Patents
除膜方法、除膜用ノズルおよび除膜装置 Download PDFInfo
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- WO2012147512A1 WO2012147512A1 PCT/JP2012/059847 JP2012059847W WO2012147512A1 WO 2012147512 A1 WO2012147512 A1 WO 2012147512A1 JP 2012059847 W JP2012059847 W JP 2012059847W WO 2012147512 A1 WO2012147512 A1 WO 2012147512A1
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- film
- film removal
- chemical
- chemical liquid
- nozzle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
- B05C5/0212—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles
- B05C5/0216—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles by relative movement of article and outlet according to a predetermined path
- B05C5/022—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles by relative movement of article and outlet according to a predetermined path the outlet being fixed during operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/06—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with a blast of gas or vapour
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/12—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed after the application
Definitions
- the present invention relates to a method for removing a film formed on a substrate, a film removal nozzle and a film removal apparatus used for this purpose.
- Patent Document 1 a desired pattern is obtained by relatively moving a stage on which a substrate is placed while bringing the suction port of an suction nozzle into contact with a wet coating film formed on a substrate and sucking the coating film. Discloses a method for removing a coating film.
- Patent Document 1 Since the method of Patent Document 1 is a contact type, there is a possibility of scratching the formed film or the substrate itself. Further, it cannot be applied to a dry film. Note that Patent Document 1 describes, as a modified example, spraying a wet state coating liquid on a wet state coating film to promote the wet state, but it is described that it can be applied to a dry state film. Neither suggested nor suggested. Further, it is obvious that even when applied to a dry film, it is not easy to create a wet film so as to follow the required process speed.
- Patent Document 1 has a problem that if the moving speed of the stage is increased too much, the coating film cannot be absorbed well and remains. Moreover, if the speed of inhalation of the coating film is increased too much, there is a problem that the coating film is absorbed more than necessary. Therefore, the process is inefficient.
- the present invention has been made to solve the above technical problem, and provides a film removal method, a film removal nozzle, and a film removal apparatus capable of efficiently dissolving and removing a dry film. For the purpose.
- a nozzle head is brought close to a soluble film formed on a substrate, and the nozzle head, the film, and the film are sucked simultaneously while discharging a chemical solution continuously from the nozzle head.
- the chemical liquid reservoir is formed between the nozzle head and the film surface in a non-contact state, and the chemical liquid reservoir is relatively moved on the substrate by horizontally moving the substrate. It is.
- the chemical solution is formed between the nozzle head and the film by bringing the nozzle head close to a soluble film formed on the substrate and simultaneously sucking the chemical liquid while discharging the chemical liquid continuously from the nozzle head.
- the chemical liquid reservoir is moved on the substrate by horizontally moving the nozzle head on the substrate in a non-contact state between the nozzle head and the film surface.
- a liquid reservoir of a chemical solution is formed by surface tension between the nozzle head adjacent to the film surface and the soluble film, and the film in a portion in contact with the liquid pool is dissolved.
- This liquid pool is continuously formed by constantly changing to a new chemical liquid by the chemical liquid continuously discharged and the chemical liquid to be inhaled.
- membrane is removed by inhaling the chemical
- the membrane is a membrane formed from a solution or a dispersion
- a chemical that constitutes the solution or dispersion is preferably used as the chemical that dissolves the membrane. If the membrane is water-soluble, water can be used as the chemical solution, which contributes to process cost reduction.
- the film removal nozzle of the present invention is a nozzle head in which a chemical liquid discharge path and a chemical liquid suction path are formed with cavities.
- the film removal nozzle has a configuration in which a linear groove is formed on the tip surface of the nozzle head, and a discharge port of the chemical solution discharge path and a suction port of the chemical solution suction path are respectively opened at both ends of the groove. .
- a droplet scattering prevention wall is provided around the nozzle head, it is possible to prevent the spray of the chemical solution from being scattered over a wide range of the film surface due to the impact discharged from the nozzle head. In this case, it is more effective to suck the space surrounded by the chemical solution deterring wall.
- the film removal nozzle of the present invention may have a configuration in which an air injection path for injecting air into the chemical liquid discharge path is connected to the chemical liquid discharge path in the above configuration.
- the film removal apparatus of the present invention includes the film removal nozzle described above.
- the film removal apparatus includes a chemical solution supply unit that supplies the chemical solution to the chemical solution discharge path, and a chemical solution suction unit that sucks the chemical solution from the chemical solution suction path.
- the film removal apparatus of the present invention supplies air to the air injection path It further includes an air supply means.
- the film removal apparatus of this invention comprises the said stage as a movable stage which can move to a horizontal direction, or is provided with the nozzle movement means to move the film removal nozzle horizontally.
- the dry film can be efficiently dissolved and removed.
- FIG. 2A is a partially broken side view showing the film removal nozzle.
- FIG. 2B is a bottom view showing the film removal nozzle.
- 2C is a cross-sectional view taken along the line II-II in FIG.
- FIG. 2D is an enlarged view of the tip of the nozzle head in FIG. 3A to 3C are explanatory views schematically showing each step of the film removal method of the present invention.
- FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. It is a schematic block diagram which shows the film removal apparatus which concerns on the 2nd Embodiment of this invention.
- FIGS. 8A, 8B, and 8C show the flow of the chemical solution flowing between the nozzle head and the substrate when the chemical solution supply flow rate to the film removal nozzle is too small, appropriate, and excessive, respectively. It is a schematic diagram explaining how. 9A to 9C are cross-sectional views taken along line IX-IX in FIGS. 8A to 8C, respectively.
- FIGS. 8A, 8B, and 8C show the flow of the chemical solution flowing between the nozzle head and the substrate when the chemical solution supply flow rate to the film removal nozzle is too small, appropriate, and excessive, respectively.
- FIG. 10A, 10B, and 10C illustrate the state of the film removal region cross section formed when the chemical solution supply flow rate to the film removal nozzle is too small, appropriate, and too large, respectively.
- FIG. 11A is a schematic diagram showing a chemical solution scattering prevention mechanism provided in the film removal nozzle.
- FIG. 11B is a bottom view of the film removal nozzle provided with the droplet scattering prevention wall.
- It is a schematic diagram which shows a chemical
- FIG. 14A and FIG. 14B are schematic diagrams for explaining an operation method for each purpose of the film removal apparatus. It is a figure explaining the state of the film removal area
- the film removal apparatus 1 includes a nozzle 10, an air cylinder 20, pipes 30 to 37, regulators 41 to 43, switching valves 51 to 54, a pressure bottle 60, a waste liquid bottle 70, a vacuum ejector 80, a flow rate controller. 90 and a movable stage 100.
- the nozzle 10 includes a nozzle base 10A and a nozzle head 10B as shown in FIG.
- a metal having corrosion resistance against chemicals such as stainless steel is preferably used.
- the nozzle base 10A has a quadrangular prism shape
- the nozzle head 10B has a quadrangular frustum shape, and both are integrally formed.
- a pair of cavities having a circular cross section that is, a downstream chemical liquid discharge path 112 and a vertical passage extending vertically through the nozzle base body 10A and the nozzle head 10B, spaced apart in the longitudinal direction of the nozzle head 10B).
- a vertical cavity formed with the air injection path 14 and a vertical hole formed with the chemical solution suction path 12 are provided.).
- the upper ends of these cavities are opened on the upper surface of the nozzle base 10A (see connection ports 14A and 12B).
- the lower ends of these cavities are opened in the lower surface of the nozzle head 10B (see the discharge port 11A and the suction port 12A).
- another cavity (see a side hole formed by the upstream side chemical solution discharge path 111) is connected in the direction perpendicular to the middle of the left side cavity.
- This cavity is opened at the end face of the nozzle base 10A (see the connection port 11B). Pipes are connected to the connection ports 11B, 12B, and 14A, respectively.
- the chemical liquid discharge path 11 includes an upstream chemical liquid discharge path 111 and a downstream chemical liquid discharge path 112.
- An air injection path 14 is connected to the connecting portion of both discharge paths 111 and 112 as shown in the figure, so that air can be injected into the chemical liquid flowing through the chemical liquid discharge path 11.
- the distance between the downstream chemical liquid discharge path 112 and the chemical liquid suction path 12 is not limited, but is set to about 1 to 15 mm, for example.
- the diameter of the chemical liquid suction path 12 is set to be equal to or larger than the diameter of the chemical liquid discharge path 11.
- the diameter of the chemical liquid discharge path 11 is set to 1 mm
- the diameter of the chemical liquid suction path 12 is set to 2 mm.
- a straight groove 13 is provided along the longitudinal direction of the nozzle head 10B on the tip surface (bottom surface) of the nozzle head 10B.
- the cross-sectional shape of the groove 13 is a semicircular shape.
- the width and depth of the groove 13 are not limited, but are set to about 0.1 to 1.0 mm, for example.
- a discharge port 11 ⁇ / b> A of the chemical solution discharge path 11 and a suction port 12 ⁇ / b> A of the chemical solution suction path 12 are opened.
- the nozzle 10 is mounted on the film removal apparatus 1 by being fixed to the support member 2 passed in the horizontal direction above the movable stage 100 by screwing or the like.
- pipes 30 to 33, 36, and 37 indicated by white arrows are pipes through which air flows
- pipes 34, 35, and 36 indicated by black arrows are pipes through which a chemical solution flows. It is desirable to use a pressure-resistant pipe as the material of these pipes.
- the air cylinder 20 accommodates compressed air.
- a pipe 30 is connected to the air cylinder 20, and three pipes 31 to 33 are connected to the pipe 30 in parallel.
- Each of the pipes 31 to 32 is provided with regulators 41 to 43 and switching valves 51 to 53, respectively.
- Regulators 41 to 43 control the flow rate of air flowing through the pipes 31 to 33.
- the switching valves 51-53 switch on / off the flow of air flowing through the pipes 31-33.
- the downstream end of the pipe 31 is connected to the air injection path 14 of the nozzle 10 so that air can be supplied to the nozzle 10.
- the downstream end of the pipe 32 is introduced into the pressure bottle 60.
- the pressurized bottle 60 is a sealed container that stores the chemical solution 300.
- the upstream end of the pipe 34 is inserted below the liquid level of the chemical solution 300 in the pressure bottle 60.
- the piping 34 is provided with a switching valve 54 and a flow rate controller 90.
- the switching valve 54 switches on / off the flow of the chemical liquid flowing through the pipe 34.
- the flow rate controller 90 controls the flow rate of the chemical liquid flowing through the pipe.
- the downstream end of the pipe 34 is connected to the connection port 11 ⁇ / b> B of the chemical solution discharge path 11 of the nozzle 10.
- a liquid that dissolves the film 201 on the substrate 200 is preferably used.
- the membrane 201 is water-soluble, water that can be easily obtained and handled can be used for the solution, and the process cost can be reduced.
- the upstream end of the pipe 35 is connected to the connection port 12B of the chemical liquid suction path 12 of the nozzle 10.
- the downstream end of the pipe 35 is introduced into the waste liquid bottle 70.
- the waste liquid bottle 70 is a sealed container that stores the chemical solution 301 in which the film 201 is dissolved.
- the downstream end of the pipe 33 is connected to the air inlet of the vacuum ejector 80.
- the upstream end of the pipe 36 is inserted into the waste liquid bottle 70.
- the downstream end of the pipe 36 is connected to the intake port of the vacuum ejector 80.
- the upstream end of the pipe 37 is connected to the exhaust port of the vacuum ejector 80.
- the downstream end of the pipe 37 is open to factory exhaust.
- the pipes 33, 36, and 37 constitute a vacuum line.
- the movable stage 100 is configured to be horizontally movable in the XY directions.
- a substrate 200 is placed on the movable stage 100.
- the moving speed of the movable stage 100 is not limited, but is set to 50 mm / s, for example.
- a dry film 201 is formed on the substrate 200.
- the film 201 is a film containing as a component a substance 201 ⁇ / b> A that is soluble in the chemical solution 300.
- membrane 201 is not limited, It is desirable that it is 1 micrometer or less. Note that the film removal described below can be efficiently performed by reducing the film strength of the film 201 in advance by plasma, UV, or the like.
- the nozzle head 10B of the nozzle 10 is brought close to the soluble film 201.
- the distance between the tip of the nozzle head 10B and the surface of the substrate 200 is not limited, but is set to about 50 ⁇ m, for example. Since the thickness of the film 201 is set to 1 ⁇ m or less, such a distance L is suitable for maintaining a non-contact state while making the distance between the tip of the nozzle head 10B and the surface of the film 201 as small as possible. .
- the film removal method of the present invention is a process that does not require the flatness of the surface of the film 201 or the substrate 200, and the residual after patterning. It can be said that this is a process that does not damage the formed film or the substrate itself.
- the air cylinder 20 is opened, and the regulators 41 to 43, the switching valves 51 to 54, and the flow rate controller 90 are appropriately controlled.
- air is supplied to the air injection path 14 of the nozzle 10 via the pipe 31.
- air is supplied to the sealed space of the pressure bottle 60 via the pipe 32, the chemical liquid 300 is pushed out to the pipe 34, and the chemical liquid 300 is supplied to the chemical liquid discharge path 11 of the nozzle 10 via the pipe 34.
- the pressure of the chemical solution 300 to be supplied is adjusted by the regulator 54 so as to be 0.05 MPa, for example.
- the final liquid amount is adjusted by the flow rate controller 90.
- the chemical liquid 300 is discharged from the discharge port 11 ⁇ / b> A of the chemical liquid discharge path 11 of the nozzle 10 toward the space between the tip surface of the nozzle head 10 ⁇ / b> B and the substrate 200.
- the straight groove 13 on the nozzle head 10B tip surface serves as a guide from the discharge port 11A of the chemical solution discharge passage 11 to the suction port of the chemical solution suction passage 12.
- the chemical liquid 300 flows toward 12A, and a liquid pool 302 is formed by surface tension.
- the groove 13 suppresses the spread of the liquid reservoir 302, so that it is difficult for the chemical liquid to spill outside the nozzle head 10 ⁇ / b> B, contributing to an improvement in film removal accuracy.
- the diameter of the chemical liquid suction path 12 is set to be larger than the diameter of the chemical liquid discharge path 11, the flow rate of the chemical liquid flowing through the chemical liquid suction path 12 is relatively increased. As a result, the chemical liquid flows smoothly along the U-shaped passage extending over the chemical liquid discharge path 11, the groove 13, and the chemical liquid suction path 12.
- the film 201 in contact with the liquid reservoir 302 is dissolved by the chemical solution.
- the liquid reservoir 302 is continuously formed by the chemical liquid 300 being continuously discharged and the chemical liquid 301 being inhaled while being constantly replaced with a new chemical liquid.
- membrane 201 is removed by inhaling the chemical
- FIG. The chemical liquid 301 flows through the chemical liquid suction path 12 and is finally discharged and stored in the waste liquid bottle 70 via the pipe 35.
- FIG. 7 is a diagram showing the relationship between the chemical solution supply flow rate and the film removal characteristics.
- the chemical solution supply flow rate was too small (less than the flow rate R1), suction was prioritized and film removal was impossible.
- the chemical solution supply flow rate was appropriate (flow rate R1 or more and less than R2), effective film removal was achieved by pulse impact.
- the chemical solution supply flow rate was excessive (R2 or more), the liquid reservoir 302 was enlarged and the film removal quality was deteriorated.
- R1 and R2 which are flow rate threshold values, vary depending on the specifications of the nozzle 10 and the viscosity of the chemical solution.
- FIGS. 8 and 9 are schematic diagrams for explaining how the flow of the chemical liquid flowing between the nozzle head and the substrate changes depending on the chemical liquid supply flow rate.
- FIG. 10 is a diagram for explaining how the film removal characteristics change depending on the chemical solution supply flow rate in the shape of the film removal region cross section.
- FIG. 8A and FIG. 9A show the case where the chemical liquid supply flow rate to the nozzle 10 is too small. At this time, the chemical liquid is excessively aspirated rather than discharged as shown by the size of the arrow in the figure. There is no contact with the substrate 200 (film 201) at all times. Therefore, even when the substrate 200 is scanned, the film 201 is not removed as shown in FIG.
- FIG. 8B and FIG. 9B show the time when the chemical solution supply flow rate to the nozzle 10 is appropriate. At this time, the chemical solution is balanced between discharge and suction as indicated by the size of the arrow in the figure.
- a pulse impact by the liquid reservoir 302 is applied to the film 201.
- the cross-sectional shape of the film removal region formed on the film 201 by scanning the substrate 200 with the movable stage 100 is such that the film removal width is 1.2 mm and the inclined portions at both ends are about. The width was 0.2 mm.
- the cross-sectional shape of the film removal region formed on the film 201 by scanning the substrate 200 with the movable stage 100 is 2 mm in film removal width and about 0.7 mm wide in the inclined portion. Met. It can be seen that since the chemical supply flow rate is large, the film removal width is widened and the edge is broadened, and the quality of the film removal area is lowered.
- the chemical solution repeatedly contacts and separates from the substrate 200 (film 201), so that the spray of the chemical solution is scattered over a wide range by the impact, and the desired film removal is performed. There is a possibility that the film 201 dissolves at a place away from the region and a defect occurs.
- a droplet scattering suppression wall 15 is provided around the nozzle head 10 ⁇ / b> B, and an exhaust pipe is provided in an exhaust hole 15 ⁇ / b> A provided at one location of the droplet scattering suppression wall 15. 33 is connected.
- the space surrounded by the droplet scattering prevention wall 15 is negative pressure due to exhaust. Therefore, it is possible to prevent the spray of the chemical solution scattered by the pulse-like impact from being sucked into the space and diffusing to a place away from the film removal region.
- the chemical solution supplied to the nozzle 10 may be heated.
- the hot water line 91 and the drainage line 92 are connected to a heat exchanger 93 provided with a spiral tube 95 made of Teflon (registered trademark), and in the middle of a pipe 34 for supplying chemicals. It is possible to adopt a configuration in which the spiral tube 95 is connected to the above.
- the temperature of the warm water flowing through the warm water line 91 is set to 80 ° C. as an example.
- medical solution which flows through the piping 34 and is supplied to the nozzle 10 is heated at 40 degreeC, for example.
- the film removal efficiency was significantly improved as compared with the case of using the normal temperature chemical solution. It is considered that the dissolution of the binder resin constituting the film 201 was accelerated by applying heat to the chemical solution, and the film removal can be performed more effectively.
- the liquid reservoir 302 when the movable stage 100 moves horizontally in the XY directions, the liquid reservoir 302 also moves relative to the substrate 200 and follows the movement locus of the movable stage 100.
- the film 201 can be removed. By applying the method of the present invention to the film 201 of about 100 nm formed on the substrate 200, the film 201 could be removed linearly with a width of 2 mm.
- the dry film 201 can be efficiently dissolved and removed. Further, by controlling the flow rate and pressure of the chemical solution and the moving speed of the stage, it is possible to remove a film that is difficult to dissolve. It is also effective to separately provide a means for heating the chemical solution such as a heater.
- FIG. 5 illustrates a schematic configuration of a film removal apparatus according to the second embodiment of the present invention.
- the nozzle 10 does not move, and the liquid reservoir 302 is moved relatively on the substrate 200 by horizontally moving the movable stage 100.
- the nozzle 10 is supported by the movable support member 2 ′, and the nozzle head 10 B is moved horizontally on the substrate 200 placed on the stationary stage 100 ′, thereby moving the chemical liquid reservoir 302 on the substrate 200. You may make it let it. It is assumed that the movable support member 2 ′ can move not only in the horizontal direction but also in the vertical direction so that the nozzle 10 can be separated from the substrate 200.
- the film removal width of the film removal region is almost the same regardless of whether the scanning speed is high or low, but when the scanning speed is high, the inclined portions at both ends of the film removal region are gentle. On the other hand, when the scanning speed is slow while the edges become sweet, the inclined portions at both ends of the film removal region become steep and the edges become sharp.
- the scan is performed to the left at a slow scanning speed (10 mm / s in this example), and then the goal is The supply / suction of the chemical solution is stopped at the point, once away from the substrate 200, moved to the right direction, returned to the start point, and scanned to the left while supplying / suctioning the chemical solution again.
- the cross-sectional shape of the film removal region formed in the film 201 was 1.2 mm in the film removal width and about 0.2 mm in the inclined portion as shown by the solid line in FIG. Therefore, although the tact time is delayed, the operation method is suitable for the purpose (edge accuracy priority) in which edge accuracy at both ends of the film removal region is required.
- the film 201 is reciprocated to the left and right for scanning.
- the scanning speed may be different between the left movement (forward movement) and the right movement (reverse movement).
- the scanning speed for left movement is 20 mm / s
- the scanning speed for right movement is 80 mm / s.
- the difference in scanning speed between left movement and right movement is that the left scanning leaves the film removal region of the film 201 wet with a chemical solution, and the film wetted by the right scanning is removed at once. This is because the steps of the film removal process are clearly divided between right scanning and left scanning, and the reproducibility of film removal is enhanced.
- the cross-sectional shape of the film removal region formed on the film 201 has a film removal width of 1.7 mm and an inclined portion of 0.3 to 0.4 mm wide as shown by a broken line in FIG. It was. Therefore, although the edge accuracy at both ends of the film removal region is lowered, it is suitable for a purpose (film removal speed priority) in which insulation can be ensured between the two regions of the film 201 divided by the film removal region.
- This is the operation method. According to this operation method, the tact time can be shortened. The reason why the film removal width is widened compared with the previous operation method is that the film 201 is once wetted and then removed.
- the reciprocation of the nozzle 10 is not limited to one reciprocation, and the number of reciprocations may be increased as appropriate depending on the properties of the film 201.
- FIG. 6 is a schematic configuration diagram showing a film removal apparatus of a film removal apparatus according to the third embodiment of the present invention.
- the structure of the nozzle 10 is simplified and the structure which inject
- the chemical liquid since there is no air injection into the nozzle 10, the chemical liquid cannot be ejected from the discharge port 11 ⁇ / b> A, but if the chemical liquid supply flow rate is appropriately adjusted by the flow rate controller 90 as described above, the nozzle head 10 ⁇ / b> B.
- the liquid reservoir 302 formed between the front end surface and the substrate 200 can be efficiently dissolved and removed while applying a pulse impact to the film 201.
- the present invention patterns a film formed on a substrate, or removes a boundary film when multi-sided from a film formed uniformly on a single substrate. Available for use.
- 1-film removal device 2-support member 2'-movable support member (nozzle moving means) 10- Nozzle removal nozzle 11- Chemical liquid discharge path 12- Chemical liquid suction path 13- Groove 14- Air injection path 20- Air cylinder 30-37- Piping 41-43- Regulator 51-54- Switching valve 60- Pressure bottle 70- Waste liquid bottle 80-vacuum ejector 90-flow controller 100-movable stage 100'-stage 20, 30, 32, 42, 52, 54, 60, 34, 54, 90-chemical solution supply means 20, 33, 35, 37, 43 , 53, 70, 80-Chemical solution suction means 20, 30, 31, 41, 51-Air supply means 300, 301-Chemical solution 302-Liquid reservoir
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Abstract
Description
図1、図2を用いて、本発明の第1の実施形態に係る除膜装置の概略構成を説明する。図1に示すように、除膜装置1は、ノズル10、エアボンベ20、配管30~37、レギュレータ41~43、切替弁51~54、加圧ボトル60、廃液ボトル70、真空エジェクタ80、流量コントローラ90、および可動ステージ100を備える。
図5は、本発明の第2の実施形態に係る除膜装置の概略構成を説明する。第1の実施形態では、ノズル10は不動で、可動ステージ100を水平移動させることにより薬液の液溜り302を基板200上で相対的に移動させるようにしたが、図5に示すように、第2の実施形態では、ノズル10を可動支持部材2’に支持し、不動のステージ100’に載せた基板200上でノズルヘッド10Bを水平移動させることにより薬液の液溜り302を基板200上で移動させるようにしても良い。なお、可動支持部材2’は、ノズル10を基板200から離間出来るよう、水平方向だけでなく、上下方向にも移動出来るようになっているものとする。
図6は、本発明の第3の実施形態に係る除膜装置の除膜装置を示す概略構成図である。第3の実施形態では、ノズル10の構造を簡素化し、薬液吐出路11を流れる薬液にエアを注入する構成を省略したものである。すなわち、図6に示すように、ノズル10にはエア注入路がなく、ノズルヘッド10Bの長手方向に間隔を離して、ノズル基体10Aおよびノズルヘッド10Bを上下に貫通する薬液吐出路11および薬液吸入路12のみを備えている。
2-支持部材
2’-可動支持部材(ノズル移動手段)
10-除膜用ノズル
11-薬液吐出路
12-薬液吸入路
13-溝
14-エア注入路
20-エアボンベ
30~37-配管
41~43-レギュレータ
51~54-切替弁
60-加圧ボトル
70-廃液ボトル
80-真空エジェクタ
90-流量コントローラ
100-可動ステージ
100’-ステージ
20,30,32,42,52,54,60,34,54,90-薬液供給手段
20,33,35,37,43,53,70,80-薬液吸引手段
20,30,31,41,51-エア供給手段
300,301-薬液
302-液溜り
Claims (15)
- 基板上に形成された、溶解性の膜にノズルヘッドを近接させ、該ノズルヘッドから連続して薬液を吐出しながら同時に吸入することにより前記ノズルヘッドと前記膜との間に前記薬液の液溜りを形成するとともに、前記ノズルヘッドと前記膜表面とを非接触状態で前記基板を水平移動させることにより前記薬液の液溜りを前記基板上で相対的に移動させることで前記膜を除去する除膜方法。
- 基板上に形成された、溶解性の膜にノズルヘッドを近接させ、該ノズルヘッドから連続して薬液を吐出しながら同時に吸入することにより前記ノズルヘッドと前記膜との間に前記薬液の液溜りを形成するとともに、前記ノズルヘッドと前記膜表面とを非接触状態で前記ノズルヘッドを前記基板上で水平移動させることにより前記薬液の液溜りを前記基板上で移動させることで前記膜を除去する除膜方法。
- 前記ノズルヘッドの薬液吐出路にエアを注入する請求項1または2に記載の除膜方法。
- 前記膜を溶解する薬液を使用した請求項1または2に記載の除膜方法。
- ノズルヘッドに薬液吐出路および薬液吸入路が空洞で形成された除膜用ノズルであって、前記ノズルヘッドの先端面に直線状の溝が形成され、該溝に、前記薬液吐出路の吐出口および前記薬液吸入路の吸入口がそれぞれ開口した除膜用ノズル。
- 前記ノズルヘッドの周囲に液滴飛散抑止壁が設けられた請求項5に記載の除膜用ノズル。
- 前記液滴飛散抑止壁に、該液滴飛散抑止壁に囲まれた空間を吸引するための排気孔が形成された請求項6に記載の除膜用ノズル。
- エアを注入するエア注入路が前記薬液吐出路に連結された請求項5に記載の除膜用ノズル。
- 請求項5に記載の除膜用ノズルを備えた除膜装置において、
基板を載置するステージと、
前記薬液吐出路に前記薬液を供給する薬液供給手段と、
前記薬液吸入路から前記薬液を吸引する薬液吸引手段と、
を有する除膜装置。 - 前記薬液供給手段は、前記薬液の供給流量を調整する流量調整装置を備える請求項9に記載の除膜装置。
- 前記薬液供給手段は、前記薬液を加温する加温装置をさらに備える請求項10に記載の除膜装置。
- 請求項7に記載の除膜用ノズルを備えた除膜装置において、
基板を載置するステージと、
前記薬液吐出路に前記薬液を供給する薬液供給手段と、
前記薬液吸入路から前記薬液を吸引する薬液吸引手段と、
前記吸引孔からエアを吸引するエア吸引手段と、
を有する除膜装置。 - 請求項8に記載の除膜用ノズルを備えた除膜装置において、
基板を載置するステージと、
前記薬液吐出路に前記薬液を供給する薬液供給手段と、
前記薬液吸入路から前記薬液を吸引する薬液吸引手段と、
前記エア注入路にエアを供給するエア供給手段と、
を有する除膜装置。 - 前記ステージが、水平方向に移動可能な可動ステージである請求項9~13のいずれかに記載の除膜装置。
- さらに、前記除膜用ノズルを水平移動させるノズル移動手段を備える請求項9~13のいずれかに記載の除膜装置。
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KR1020137030537A KR101572340B1 (ko) | 2011-04-26 | 2012-04-11 | 제막 방법, 제막용 노즐 및 제막 장치 |
JP2012539535A JP5666614B2 (ja) | 2011-04-26 | 2012-04-11 | 除膜方法、除膜装置、および除膜用ノズル |
US14/113,261 US8980114B2 (en) | 2011-04-26 | 2012-04-11 | Film removing method, nozzle for removing film, and film removing device |
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CN111389671A (zh) * | 2020-03-19 | 2020-07-10 | 宁波荣集锦科技有限公司 | 一种电子元器件生产加工用刮胶装置 |
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CN104742490A (zh) * | 2015-03-05 | 2015-07-01 | 南京第壹有机光电有限公司 | 一种选择性除膜装置 |
CN109731734A (zh) * | 2018-12-25 | 2019-05-10 | 广州奥松电子有限公司 | 高精度小面积点胶***及方法 |
IT201900017324A1 (it) * | 2019-09-26 | 2021-03-26 | Cefla Deutschland Gmbh | Processo per preparare un pannello rinforzato e/o a ritardo di fiamma |
IT201900017288A1 (it) * | 2019-09-26 | 2021-03-26 | Cefla Deutschland Gmbh | Processo per preparare bordi di pannelli a prova di acqua, rinforzati e/o a fiamma ritardata |
KR102386211B1 (ko) * | 2021-04-02 | 2022-05-12 | 데코엑스지(주) | 광학용 투명접착재질 제거장치 및 이를 이용한 제거방법 |
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TW201249547A (en) | 2012-12-16 |
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