WO2023026719A1 - 基板処理方法および基板処理装置 - Google Patents
基板処理方法および基板処理装置 Download PDFInfo
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- WO2023026719A1 WO2023026719A1 PCT/JP2022/027660 JP2022027660W WO2023026719A1 WO 2023026719 A1 WO2023026719 A1 WO 2023026719A1 JP 2022027660 W JP2022027660 W JP 2022027660W WO 2023026719 A1 WO2023026719 A1 WO 2023026719A1
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- filler
- substrate
- edge portion
- substrate processing
- filling state
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Images
Classifications
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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
- B05C9/14—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 involving heating or cooling
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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
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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
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
- B05D3/0263—After-treatment with IR heaters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
Definitions
- the present invention relates to a substrate processing method and a substrate processing apparatus for suppressing cracks and chips in a laminated substrate manufactured by bonding a plurality of substrates, and more particularly to a substrate processing method and a substrate processing apparatus formed between edge portions of a plurality of substrates constituting the laminated substrate.
- the present invention relates to a technique for applying a filler to gaps.
- the device surface of a first substrate on which integrated circuits and electrical wiring are formed is bonded to the device surface of a second substrate on which integrated circuits and electrical wiring are formed. Furthermore, after bonding the first substrate to the second substrate, the second substrate is thinned by a polishing or grinding device. In this manner, integrated circuits can be stacked in a direction perpendicular to the device surfaces of the first substrate and the second substrate.
- three or more substrates may be bonded.
- the third substrate may be bonded to the second substrate and the third substrate integrated.
- a form of a plurality of substrates bonded together is sometimes referred to as a "laminated substrate.”
- edges of the substrate are usually pre-polished into a rounded or chamfered shape to prevent cracks and chipping. Grinding the second substrate having such a shape results in forming a sharp edge on the second substrate.
- This sharp edge portion (hereinafter referred to as a knife edge portion) is formed by the ground back surface of the second substrate and the outer peripheral surface of the second substrate.
- Such a knife edge portion is likely to be chipped due to physical contact, and the laminated substrate itself may be damaged during transportation of the laminated substrate.
- the second substrate may crack during grinding.
- a filler is applied to the edge portion of the laminated substrate before grinding the second substrate.
- a filler is applied to the gap between the edge of the first substrate and the edge of the second substrate. The filler supports the knife edge portion formed after grinding the second substrate, and can prevent the knife edge portion from cracking or chipping.
- the filler when the filler is applied to the gap between the edge portion of the first substrate and the edge portion of the second substrate, filling failures such as insufficient or excessive application of the filler may occur under preset application conditions. There is If the layered substrate is processed in subsequent steps while the filling is insufficient, the layered substrate and process performance may be adversely affected, for example, the layered substrate may be scratched. Conventionally, confirmation of the filling state of the filler in the laminated substrate was performed after the application of the filler was completed, and in some cases it was necessary to destroy the laminated substrate.
- the present invention provides a substrate processing method and substrate processing capable of monitoring the filling state of the filler in the gap while applying the filler to the gap between the edge portion of the first substrate and the edge portion of the second substrate.
- the purpose is to provide an apparatus.
- a filler is applied to a laminated substrate in which a first substrate and a second substrate are bonded together, and the filler is filled in a gap between an edge portion of the first substrate and an edge portion of the second substrate.
- a filler is applied, the applied filler is cured, an image of an edge portion of the laminated substrate to which the filler is applied is generated by an infrared imaging device, and the filling in the gap is performed based on the image.
- a substrate processing method is provided for determining agent loading. In one aspect, determining the fill state is based on a size of the filler within a preset target area on the image. In one aspect, the substrate processing method terminates application of the filler based on the filling state. In one aspect, the substrate processing method further includes the step of additionally applying the filler based on the filling state.
- the substrate processing method counts the number of voids generated in the filler on the image, and determines that an abnormality has occurred when the number of voids reaches a permissible value. further includes In one aspect, the steps of applying the filler, curing the filler, and generating the image are performed while rotating the laminated substrate. In one aspect, the substrate processing method changes the application condition of the filler based on the filling state. In one aspect, the substrate processing method includes generating the images at a plurality of measurement points of the laminated substrate while the laminated substrate rotates once, and determining the filling state at the plurality of measurement points and the plurality of measurements. Based on the positional information of the points, the conditions for applying the filler to at least one of the plurality of measurement points are changed.
- the substrate processing method further includes the step of changing application conditions of the filler for the next laminated substrate based on the filling state.
- the coating conditions include the total coating amount of the filler, the shape of a filler outlet of a coating device for applying the filler, the distance between the laminated substrate and the filler outlet, and the unit time. It includes at least one of the amount of the filler ejected from the filler ejection port and the rotational speed of the laminated substrate.
- the infrared imaging device irradiates an infrared ray substantially perpendicularly to a bonding surface between the first substrate and the second substrate of the laminated substrate.
- a substrate processing apparatus for applying a filler to a laminated substrate in which a first substrate and a second substrate are joined, the filler applying device being configured to apply the filler to the laminated substrate. and an operation control unit for controlling the operation of the filler application module, the filler application module including a substrate holding unit that holds the laminated substrate, an edge portion of the first substrate, and an edge portion of the second substrate.
- An application device for applying the filler to a gap between the edge portion, a curing device for curing the applied filler, and an image of the edge portion of the laminated substrate to which the filler is applied are generated.
- a substrate processing apparatus comprising an infrared imaging device, wherein the operation control unit is configured to determine a filling state of the filler applied to the gap based on the image. In one aspect, the operation control unit is further configured to give a command to the filler application module based on the filling state to end the application of the filler by the application device. In one aspect, the operation control unit is further configured to give a command to the filler application module to additionally apply the filler based on the filling state. In one aspect, the filler application module further includes a rotation mechanism that rotates the substrate holder. In one aspect, the operation control unit changes the application condition of the filler based on the filling state.
- the application of the filler is finished at an appropriate timing, and additional application of the filler and application conditions are performed as necessary.
- An appropriate filling state can be achieved by changing
- FIG. 1A is an enlarged cross-sectional view showing an edge portion of a substrate.
- FIG. 1B is an enlarged cross-sectional view showing the edge portion of the substrate.
- 2 is an enlarged cross-sectional view showing a laminated substrate;
- FIG. It is a top view which shows one Embodiment of a substrate processing apparatus. It is a side view which shows one Embodiment of a substrate processing apparatus. It is a mimetic diagram showing one embodiment of a coating device.
- FIG. 3 is a schematic diagram showing how an infrared imaging device generates an image; It is a figure which shows an example of the measurement point set on the laminated substrate.
- FIG. 8A is an enlarged cross-sectional view of an edge portion of the laminated substrate during filling with a filler.
- FIG. 8B is a diagram showing an image of an edge portion of the laminated substrate shown in FIG. 8A.
- FIG. 9A is an enlarged cross-sectional view of the edge portion of the laminated substrate that has been completely filled with the filler.
- FIG. 9B is a diagram showing an image of an edge portion of the laminated substrate shown in FIG. 9A.
- 4 is a flow chart illustrating an embodiment of a substrate processing method;
- FIG. 11A is an enlarged cross-sectional view of an edge portion of the laminated substrate in which voids are generated in the filler.
- FIG. 13A is an enlarged cross-sectional view of an edge portion of a laminated substrate in which insufficient filling of a filler occurs.
- 13B is a diagram showing an image of an edge portion of the laminated substrate shown in FIG. 13
- FIG. 1A and 1B are enlarged cross-sectional views showing an edge portion E of the substrate W.
- FIG. 1A is a cross-sectional view of a so-called straight substrate W
- FIG. 1B is a cross-sectional view of a so-called round substrate W.
- the edge portion E is the outermost side surface that is inclined with respect to the flat surface (front side surface and back side surface) of the substrate W, and has a rounded or chamfered shape.
- the edge portion E is the outermost periphery of the substrate W, which is composed of an upper inclined portion (upper bevel portion) B1, a lower inclined portion (lower bevel portion) B2, and a side portion (apex) B3. It is the surface.
- the edge portion E is a portion that forms the outermost peripheral surface of the substrate W and has a curved cross section.
- the edge portion E is sometimes called a bevel portion.
- FIG. 2 is an enlarged cross-sectional view showing the laminated substrate Ws.
- the laminated substrate Ws has a structure in which a first substrate W1 and a second substrate W2 are bonded at a bonding surface P. As shown in FIG.
- the first substrate W1 and the second substrate W2 used in this embodiment are circular.
- the laminated substrate Ws of this embodiment has a structure in which the round-shaped first substrate W1 and the second substrate W2 shown in FIG. 1B are joined together. It may have a structure in which a straight-type first substrate W1 and a second substrate W2 are bonded together.
- the edge portion of the laminated substrate Ws indicates the outer edge portion of the laminated substrate Ws including the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2.
- the edge portions E1 and E2 are sometimes called bevel portions.
- a gap G is formed between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2. This gap G is formed over the entire circumference of the laminated substrate Ws.
- FIG. 3 is a plan view showing one embodiment of the substrate processing apparatus 1
- FIG. 4 is a side view showing one embodiment of the substrate processing apparatus 1.
- FIG. A substrate processing apparatus 1 is an apparatus for applying a filler F to a laminated substrate Ws in which a first substrate W1 and a second substrate W2 are joined.
- the substrate processing apparatus 1 includes a filler application module 9 configured to apply the filler F to the laminated substrate Ws, and an operation control section 10 that controls the operation of the filler application module 9 .
- the filler application module 9 includes a substrate holder 2 that holds the laminated substrate Ws, an application device 3 that applies the filler F, a curing device 4 that cures the applied filler F, and the laminated substrate Ws.
- An infrared imaging device 5 is provided for generating an image of the edge portion of the .
- the substrate holding part 2 is a stage that holds the rear surface of the laminated substrate Ws by vacuum suction.
- the filler application module 9 further includes a rotating shaft 7 connected to the central portion of the substrate holding portion 2 and a rotating mechanism 8 that rotates the substrate holding portion 2 and the rotating shaft 7 .
- the laminated substrate Ws is placed on the substrate holder 2 so that the center of the laminated substrate Ws coincides with the axis of the rotating shaft 7 .
- the rotating mechanism 8 has a motor (not shown). As shown in FIG. 3, the rotation mechanism 8 is configured to integrally rotate the substrate holder 2 and the laminated substrate Ws about the central axis Cr of the laminated substrate Ws in the direction indicated by the arrow.
- the coating device 3 is positioned radially outward of the laminated substrate Ws on the substrate holder 2, and is positioned in the gap G between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2 of the laminated substrate Ws. It is configured to apply a filler F.
- FIG. 5 is a schematic diagram showing an embodiment of the coating device 3. As shown in FIG. The coating device 3 includes a syringe 21 for discharging the filler F, a piston 22 capable of reciprocating within the syringe 21, and a horizontal movement mechanism (not shown) for moving the syringe 21 toward or away from the laminated substrate Ws. ing.
- the coating device 3 can adjust the distance between the laminated substrate Ws and the filler discharge port 21 a of the coating device 3 .
- the coating device 3 may omit the horizontal movement mechanism. In this case, the distance between the laminated substrate Ws and the filler discharge port 21a is determined in advance so that the filler F is appropriately injected into the gap G of the laminated substrate Ws.
- the syringe 21 has a hollow structure and is configured to be filled with a filler F inside.
- the piston 22 is arranged inside the syringe 21 .
- the syringe 21 has a filler ejection port 21a for ejecting the filler F at its tip.
- the tip of the syringe 21 including the filler ejection port 21a may be detachable.
- An appropriate shape is selected for the shape of the filler discharge port 21a depending on the physical properties (for example, viscosity) of the filler F to be applied.
- the filler discharge port 21a is arranged to face the gap G between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2.
- the coating device 3 is connected to a gas supply source via a gas supply line 25 .
- a gas for example, dry air or nitrogen gas
- the piston 22 advances inside the syringe 21 .
- the filler F in the syringe 21 is discharged from the filler discharge port 21a.
- a pressure regulator 26 and an on-off valve 27 are arranged in the gas supply line 25 .
- the on-off valve 27 is an actuator-driven valve such as an electric valve or an electromagnetic valve.
- the on-off valve 27 is opened, the gas is supplied from the gas supply source to the coating device 3, and the coating device 3 applies the filler F to the laminated substrate Ws.
- the on-off valve 27 is closed, the supply of the gas to the coating device 3 is stopped, and the coating of the filler F is thereby stopped.
- the pressure adjustment device 26 can adjust the amount of the filler F ejected from the filler ejection port 21a per unit time by adjusting the pressure of the gas supplied from the gas supply source to the coating device 3 . Operations of the pressure regulator 26 and the on-off valve 27 are controlled by the operation control section 10 .
- the coating device 3 may be provided with a screw feeder instead of the combination of the syringe 21 and the piston 22.
- the curing device 4 is positioned radially outward of the laminated substrate Ws on the substrate holding portion 2 .
- the curing device 4 is arranged downstream of the coating device 3 in the rotation direction of the multilayer substrate Ws, and configured to cure the filler F applied to the multilayer substrate Ws by the coating device 3 . Curing of the filler F by the curing device 4 is performed while rotating the laminated substrate Ws.
- the filler F is a thermosetting filler. Examples of such fillers include thermosetting resins.
- the curing device 4 is an air heater, and is configured to blow hot air toward the filler F applied to the laminated substrate Ws.
- the curing device 4 is configured to be able to adjust the air pressure and temperature of the hot air blown.
- the filler F heated by the hot air is cured by a cross-linking reaction.
- the solvent is volatilized by heating.
- the curing device 4 is not limited to an air heater as long as it can heat and cure the filler F, and may be a lamp heater or other configuration.
- the filler F is a thermosetting filler, but in one embodiment, the filler F may be a UV-curable filler.
- the curing device 4 may be a UV irradiation device that cures the filler F by irradiating it with ultraviolet rays. If the filler F contains a solvent, it may be heated using an air heater or the like to volatilize the solvent.
- the infrared imaging device 5 is arranged downstream of the curing device 4 in the rotation direction of the laminated substrate Ws.
- the infrared imaging device 5 is configured to generate an image including the filler F applied to the laminated substrate Ws by the coating device 3 and cured by the curing device 4 .
- the distance between the infrared imaging device 5 and the curing device 4 is shorter than the distance between the infrared imaging device 5 and the coating device 3 .
- the infrared imaging device 5 is positioned above the edge portion of the laminated substrate Ws and is configured to generate an image of the edge portion of the laminated substrate Ws.
- the infrared imaging device 5 irradiates the edge portion of the laminated substrate Ws with infrared rays, receives the infrared rays reflected from the edge portion of the laminated substrate Ws, and generates an image of the edge portion of the laminated substrate Ws.
- An example of the infrared imaging device 5 is an infrared microscope.
- FIG. 6 is a schematic diagram showing how the infrared imaging device 5 generates an image.
- the infrared imaging device 5 irradiates infrared rays substantially perpendicularly to the bonding surface P between the first substrate W1 and the second substrate W2 of the laminated substrate Ws.
- the infrared imaging device 5 generates an image of an imaging region R containing the filler F applied to the laminated substrate Ws by the coating device 3 and cured by the curing device 4 . Images may be generated by the infrared imaging device 5 while rotating the laminated substrate Ws.
- Infrared radiation has wavelengths that pass through silicon.
- the first substrate W1 and the second substrate W2 are basically composed of silicon wafers, and the infrared rays emitted from the infrared imaging device 5 pass through the first substrate W1 and the second substrate W2. . Since infrared rays do not pass through the filler F, the infrared imaging device 5 can generate an image of the imaging region R including the filler F from the infrared rays reflected from the edge portion of the laminated substrate Ws.
- the operation control unit 10 is configured to control the operation of the filler application module 9 configured as described above.
- a filler application module 9 including the application device 3 , the curing device 4 , the infrared imaging device 5 , the rotation mechanism 8 , the pressure adjustment device 26 and the on-off valve 27 is electrically connected to the operation control section 10 .
- the operation control unit 10 is composed of at least one computer.
- the operation control unit 10 includes a storage device 10a storing a program for controlling the operation of the filler application module 9, and a processing device 10b that executes operations according to instructions included in the program.
- the storage device 10a includes a main storage device such as a random access memory (RAM) and an auxiliary storage device such as a hard disk drive (HDD) and solid state drive (SSD).
- Examples of the processing device 10b include a CPU (central processing unit) and a GPU (graphic processing unit).
- the specific configuration of the operation control unit 10 is not limited to these examples.
- the infrared imaging device 5 generates an image of the edge portion of the laminated substrate Ws at preset measurement points while the laminated substrate Ws rotates once.
- the number of measurement points may be one, or two or more.
- FIG. 7 is a diagram showing an example of measurement points set on the multilayer substrate Ws. In this embodiment, the number of measurement points is four.
- the four measurement points M1 to M4 are positioned at equal intervals around the central axis Cr of the laminated substrate Ws at the edge portion of the laminated substrate Ws.
- the operation control unit 10 has position information (for example, angle information) of the application start point of the filler F and the measurement points M1 to M4.
- the laminated substrate Ws is rotating in the direction indicated by the arrow.
- the application start point of the filler F coincides with the measurement point M1
- the application device 3 starts application from the measurement point M1
- the filler F is continuously applied to the edge portion of the laminated substrate Ws.
- the filler F may be applied while the laminated substrate Ws rotates a plurality of times according to the total applied amount.
- the curing device 4 continuously cures the filler F applied to the edge portion of the laminated substrate Ws.
- the infrared imaging device 5 generates an image of the edge portion of the laminated substrate Ws at each measurement point in order of the measurement points M1, M2, M3, and M4.
- the operation control unit 10 determines the filling state of the filler F applied to the gap G (see FIG. 5) between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2. to decide. Based on the determined filling state of the filler F, the operation control unit 10 terminates the application of the filler F by the application device 3 at an appropriate timing.
- FIG. 8A is an enlarged cross-sectional view of an edge portion of the laminated substrate Ws in the process of filling the filler F.
- FIG. FIG. 8B is a diagram showing an image of an edge portion of the laminated substrate Ws shown in FIG. 8A.
- the edge portion of the laminated substrate Ws shown in FIG. 8A corresponds to the imaging region R shown in FIG.
- FIG. 8B shows an image of the imaging region R generated by the infrared imaging device 5 placed above the edge of the laminated substrate Ws.
- the images produced by the infrared imaging device 5 are two-dimensional, but in one embodiment the images produced by the infrared imaging device 5 may be three-dimensional.
- the width x1 is the radial width of the portion of the imaging region R where the first substrate W1 and the second substrate W2 are bonded.
- the width x2 is the radial width of the gap G between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2.
- the width x3 is the radial width of the filler F applied to the gap G. As shown in FIG. 8A, the width x1 is the radial width of the portion of the imaging region R where the first substrate W1 and the second substrate W2 are bonded.
- the width x2 is the radial width of the gap G between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2.
- the width x3 is the radial width of the filler F applied to the gap G. As shown in FIG.
- the widths x1 to x3 shown in FIG. 8B correspond to the widths x1 to x3 shown in FIG. 8A.
- the region Rn corresponding to the portion where the filler F does not exist appears in the image with a color close to white because the infrared rays emitted from the infrared imaging device 5 are transmitted through the second substrate W2 and the first substrate W1.
- the infrared rays emitted from the infrared imaging device 5 pass through the second substrate W2 and are reflected from the filler F, so that they appear on the image in a color close to black. .
- the operation control unit 10 fills the gap G between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2 with the filler F applied. determine the state. More specifically, the operation control unit 10 determines the filling state based on the size of the filler F within the preset target region T on the image.
- the target area T may be part of the image or the entire image.
- the target region T of this embodiment is a region having a width of x1+x2 in the radial direction and a length of y in the direction perpendicular to the radial direction.
- the target region T may be set to a region having a radial width of x2 and a length of y in the direction perpendicular to the radial direction (indicated by symbol Tx).
- the target region T can be arbitrarily set as long as it includes the entire portion where the filler F is present in its width in the radial direction.
- the operation control unit 10 determines the filling state as "incomplete filling".
- the predetermined threshold value is that the size of the filler F in the target region T when the radial width is x2 (that is, the area of the region Rf when the radial width is x2) is is set.
- FIG. 9A is an enlarged cross-sectional view of the edge portion of the laminated substrate Ws that has been completely filled with the filler F.
- FIG. FIG. 9B is a diagram showing an image of an edge portion of the laminated substrate Ws shown in FIG. 9A.
- the width x1 is the radial width of the portion of the imaging region R where the first substrate W1 and the second substrate W2 are bonded.
- the width x2 is the radial width of the gap G between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2.
- the width x3 is the radial width of the filler F applied to the gap G. As shown in FIG.
- the widths x1 to x3 shown in FIG. 9B correspond to the widths x1 to x3 shown in FIG. 9A.
- the region Rn corresponding to the portion where the filler F does not exist appears in the image with a color close to white because the infrared rays emitted from the infrared imaging device 5 are transmitted through the second substrate W2 and the first substrate W1.
- the infrared rays emitted from the infrared imaging device 5 pass through the second substrate W2 and are reflected from the filler F, so that they appear on the image in a color close to black. .
- the operation control unit 10 determines the filling state of the filler F applied to the gap between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2. to decide. More specifically, the operation control unit 10 determines the filling state based on the size of the filler F within the target region T on the image.
- the filling state of the filler F of the present embodiment is "filling completed".
- the operation control unit 10 determines the filling state as "filling completed".
- the predetermined threshold value is that the size of the filler F in the target region T when the radial width is x2 (that is, the area of the region Rf when the radial width is x2) is is set.
- the operation control unit 10 terminates the application of the filler F by the application device 3 based on the determined filling state of the filler F. More specifically, the operation control unit 10 gives a command to the filler coating module 9 to cause the coating device 3 to apply the filler F when the filling state of the filler F is determined to be "incomplete”. is continued, and when the filling state of the filler F is determined to be "filling completed", a command is given to the filler coating module 9 to terminate the coating of the filler F by the coating device 3.
- FIG. 10 is a flow chart illustrating one embodiment of a substrate processing method.
- the operation control section 10 gives a command to the rotation mechanism 8 of the filler coating module 9 to rotate the substrate holding section 2 and the laminated substrate Ws at a predetermined rotation speed.
- the operation control unit 10 gives a command to the on-off valve 27 of the filler coating module 9 to open the on-off valve 27 and supply gas from the gas supply source to the coating device 3 .
- the filler F is injected into the gap G between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2 of the rotating laminated substrate Ws.
- step S103 the operation control unit 10 gives a command to the curing device 4 of the filler coating module 9 to heat the laminated substrate Ws and cure the applied filler F.
- step S104 the operation control unit 10 gives a command to the infrared imaging device 5 of the filler coating module 9 to generate an image of the edge portion of the laminated substrate Ws at the measurement point on the laminated substrate Ws.
- step S105 the operation control unit 10 compares the size of the filler F within the target region T on the image generated by the infrared imaging device 5 with a predetermined threshold.
- the operation control unit 10 determines the filling state as "filling incomplete" (step S106-1).
- the operation control unit 10 determines that the filling state is "incomplete”
- it gives a command to the filler application module 9 to continue the application of the filler F by the application device 3, and repeats steps S102 to S105.
- the operation control unit 10 determines the filling state as "filling completed” (step S106-2).
- the operation control unit 10 determines that the filling state is "filling completed"
- it gives a command to the filler application module 9 to finish the application of the filler F.
- the operation control unit 10 may give a command to the filler application module 9 to stop the application of the filler F when the application start point of the filler F reaches the application position of the application device 3 .
- the filling state of the filler F is determined by the curing device 4 immediately after the curing of filler F. Therefore, the filling state of the filler F can be monitored in real time, and the application of the filler F can be finished at an appropriate timing. As a result, an appropriate filling state of the filler F can be achieved.
- the operation control unit 10 compares the size of the filler F in the target region T with a predetermined threshold value to determine the filling state. You may go (step S105). In this case, when the filling state is determined to be "unfinished filling" (step S106-1), the operation control unit 10 gives a command to the filler coating module 9 to operate the coating device 3 and the curing device 4. may be restarted to additionally apply the filler F by the application device 3 (step S102), and steps S103 to S105 may be repeated.
- the additional application of the filler F is performed only on a part of the edge portion of the multilayer substrate Ws based on the filling state of the filler F at the plurality of measurement points and the positional information of the plurality of measurement points.
- the operation control unit 10 determines the filling state of the filler F at a plurality of measurement points M1 to M4 shown in FIG.
- the filler application module 9 may be caused to additionally apply the filler F only at the measurement point M1.
- FIG. 11A is an enlarged cross-sectional view of an edge portion of the laminated substrate Ws in which voids B are generated in the filler F.
- FIG. A void B is a space formed in the filler F applied to the laminated substrate Ws.
- FIG. 11B is a diagram showing an image of an edge portion of the laminated substrate Ws shown in FIG. 11A.
- Voids B may occur in the applied filler F depending on the conditions under which the filler F is applied.
- FIG. 8A and 8B is a diagram showing an image of an edge portion of the laminated substrate Ws shown in FIG. 11A.
- the width x1 is the radial width of the portion of the imaging region R where the first substrate W1 and the second substrate W2 are bonded.
- the width x2 is the radial width of the gap G between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2.
- the width x3 is the radial width of the filler F applied to the gap G. As shown in FIG.
- the widths x1 to x3 shown in FIG. 11B correspond to the widths x1 to x3 shown in FIG. 11A.
- the region Rn corresponding to the portion where the filler F does not exist appears in the image with a color close to white because the infrared rays emitted from the infrared imaging device 5 are transmitted through the second substrate W2 and the first substrate W1.
- the infrared rays emitted from the infrared imaging device 5 pass through the second substrate W2 and are reflected from the filler F, so that they appear on the image in a color close to black. .
- the voids B generated in the filler F appear on the image in a color close to white.
- the operation control unit 10 fills the gap G between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2 with the filler F applied. determine the state. More specifically, when the operation control unit 10 detects a void B in the filler F (that is, the region Rf) in the image, the filling state is determined to be "void occurrence”. Further, the operation control unit 10 counts the number of voids B on the image, and determines that "abnormality has occurred" when the number of voids B reaches a preset allowable value.
- FIG. 12 is a flow chart showing another embodiment of the substrate processing method. Steps S201 to S204 of this embodiment are the same as steps S101 to S104 of the embodiment described with reference to FIG. 10, so redundant description will be omitted.
- step S ⁇ b>205 the operation control unit 10 determines whether voids B are generated in the filler F based on the image generated by the infrared imaging device 5 .
- the operation control unit 10 determines that the filling state is "void generation" when voids B are generated in the filler F (step S206).
- the filler application module 9 continues to apply the filler F, and steps S202 to S205 are performed. repeat.
- the operation control unit 10 When voids B are generated in the filler F (“Yes” in step 205), the operation control unit 10 counts the number of voids B on the image generated by the infrared imaging device 5 (step S207). . At step S208, the operation control unit 10 determines whether the number of voids B has reached a predetermined allowable value. When the number of voids B reaches the permissible value, the operation control unit 10 determines that an "abnormality has occurred" (step S209). When the operation control unit 10 determines that an "abnormality has occurred", the operation control unit 10 gives a command to the filler application module 9 to terminate the application of the filler F. FIG. When the number of voids B has not reached the predetermined allowable value (“No” in step S208), the operation control unit 10 gives a command to the filler application module 9 to continue the application of the filler F, and the step S202 to S205 are repeated.
- the filling state of the filler F is determined by the curing device 4 immediately after the curing of filler F. Therefore, it is possible to monitor the filling state of the filler F in real time and quickly detect the occurrence of an abnormality.
- the operation control unit 10 may detect voids B in the filler F based on the rate of increase in the size of the filler F in the target region T (see FIG. 11B) on the image. .
- the rate of increase in the size of the filler F is the amount of increase in the size of the filler F within the target area T per unit time.
- the operation control unit 10 controls the filling agent F in the target region T when the rate of increase in the size of the filler F (that is, the rate of increase in the area of the region Rf) is greater than a predetermined reference value.
- the predetermined reference value may be set based on, for example, an increase rate of the size of the filler F when voids B are not generated in the filler F, which is previously obtained by experiments or the like.
- the rate of increase in the size of the filler F can be obtained from the size of the filler F within the target region T on the image generated by the infrared imaging device 5 each time the laminated substrate Ws rotates.
- the operation control unit 10 controls the size of the filler F in the target area T on the image when the laminated substrate Ws has made one rotation from the start of the application of the filler F, and the image when the laminated substrate Ws has made another one rotation. From the size of the filler F in the upper target region T, the amount of increase in the size of the filler F is calculated.
- the operation control unit 10 divides the calculated amount of increase in the size of the filler F by the time taken for one rotation of the laminated substrate to obtain the amount of increase in the size of the filler F per unit time, that is, the amount of the filler F Calculate the rate of increase in the size of
- the operation control unit 10 gives a command to the filler application module 9 to end the application of the filler F. You may let
- the operation control unit 10 determines the filling state as “void generation. ” may be determined. Further, when the size of the filler F in the target region T (that is, the area of the region Rf) is larger than the preset upper limit value, the operation control unit 10 gives a command to the filler application module 9. , the application of the filler F may be terminated.
- the operation control unit 10 may change the application conditions of the filler F based on the filling state of the filler F.
- the coating conditions are the total amount of the filler F applied, the shape of the filler discharge port 21a (see FIG. 5) of the coating device 3, the distance between the laminated substrate Ws and the filler discharge port 21a, and the filler discharge port per unit time. It includes at least one of the amount of the filler F discharged from 21a and the rotational speed of the laminated substrate Ws.
- the application conditions may further include the air pressure and temperature of hot air blown from the curing device 4 .
- the coating conditions may be changed only at a part of the edge portion of the laminated substrate Ws based on the filling state of the filler F at the plurality of measurement points and the positional information of the plurality of measurement points. good.
- the operation control unit 10 determines the filling state of the filler F at a plurality of measurement points M1 to M4 shown in FIG. When the operation control unit 10 determines that the filling state is "poor filling" at the measuring point M1 and that the filling state is "incomplete filling" at the measuring points M2 to M4, based on the position information of the measuring points M1 to M4, Only the application condition of the filler F at the measurement point M1 may be changed.
- the filling state of the filler F is determined by the curing device 4 immediately after the curing of filler F. Therefore, the filling state of the filler F can be monitored in real time, and the application conditions can be adjusted to achieve the optimum filling state.
- the filling state of the filler F in the laminated substrate Ws it may be reflected in the conditions for applying the filler F to the next laminated substrate.
- the next laminated substrate has the same configuration, it is possible to perform coating in an appropriate filling state without adjusting the coating conditions during the process.
- FIG. 13A is an enlarged cross-sectional view of the edge portion of the laminated substrate Ws in which the filler F is insufficiently filled.
- FIG. 13B is a diagram showing an image of an edge portion of the laminated substrate Ws shown in FIG. 13A. The details of this embodiment that are not particularly described are the same as those of the embodiment described with reference to FIGS. 8A and 8B, so redundant description thereof will be omitted.
- the width x1 is the radial width of the portion of the imaging region R where the first substrate W1 and the second substrate W2 are bonded.
- the width x2 is the radial width of the portion where the filler F is not applied on the inner side of the filler F in the radial direction.
- the width x3 is the radial width of the filler F applied to the gap G.
- the width x4 is the radial width of the portion not coated with the filler F outside the filler F in the radial direction, that is, the width from the radially outermost end of the filler F to the radially outermost portion of the laminated substrate Ws. It is the width to the outer edge.
- the widths x1 to x4 shown in FIG. 13B correspond to the widths x1 to x4 shown in FIG. 13A.
- the infrared rays emitted from the infrared imaging device 5 are transmitted through the second substrate W2 and the first substrate W1, so that the region Rn appears in an image with a color close to white.
- the infrared rays irradiated from the infrared imaging device 5 pass through the second substrate W2 and are reflected from the filler F, so that the region Rf appears in the image in a color close to black.
- the operation control unit 10 fills the gap G between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2 with the filler F applied. determine the state. More specifically, the operation control unit 10 determines the filling state based on the position of the filler F on the image.
- the filling of the filler F is defective, and the filler F is not applied to the portion of the width x2 in the radial direction.
- the radially inner end position Lf of the region Rf is the radially inner end of the gap G between the edge portion E1 of the first substrate W1 and the edge portion E2 of the second substrate W2. It is located radially outside the part position L0.
- the motion control unit 10 is configured such that the radially inner end position of the filler F (that is, the radially inner end position Lf of the region Rf) is positioned radially outside the radially inner end position L0 of the gap G. , the filling state is determined to be "poor filling".
- the operation control unit 10 determines that the filling state of the filler F is "failure to fill"
- the application of the filler F by the coating device 3 is terminated.
- the filling state of the filler F is determined by the curing device 4 immediately after the curing of filler F. Therefore, it is possible to monitor the filling state of the filler F in real time and quickly detect a filling failure.
- the present invention relates to a substrate processing method and a substrate processing apparatus for suppressing cracks and chips in a laminated substrate manufactured by bonding a plurality of substrates, and more particularly to a substrate processing method and a substrate processing apparatus formed between edge portions of a plurality of substrates constituting the laminated substrate. It can be used for the technique of applying a filler to gaps.
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Abstract
Description
一態様では、前記充填状態を決定する工程は、前記画像上の予め設定されたターゲット領域内の前記充填剤の大きさに基づいて、前記充填状態を決定する工程である。
一態様では、前記基板処理方法は、前記充填状態に基づいて、前記充填剤の塗布を終了する。
一態様では、前記基板処理方法は、前記充填状態に基づいて、前記充填剤を追加塗布する工程をさらに含む。
一態様では、前記充填剤を塗布する工程、前記充填剤を硬化する工程、および前記画像を生成する工程は、前記積層基板を回転させながら行う。
一態様では、前記基板処理方法は、前記充填状態に基づいて、前記充填剤の塗布条件を変更する。
一態様では、前記基板処理方法は、前記積層基板が一回転する間に、前記積層基板の複数の測定点で前記画像を生成し、前記複数の測定点における前記充填状態と、前記複数の測定点の位置情報に基づいて、前記複数の測定点のうち少なくとも1つでの前記充填剤の塗布条件を変更する。
一態様では、前記塗布条件は、前記充填剤の総塗布量、前記充填剤を塗布するための塗布装置の充填剤吐出口の形状、前記積層基板と前記充填剤吐出口との距離、単位時間あたりの前記充填剤吐出口から吐出する前記充填剤の量、前記積層基板の回転速度のうちの少なくとも1つを含む。
一態様では、前記赤外撮像装置は、赤外線を前記積層基板の前記第1基板と前記第2基板の接合面に対して略垂直に照射する。
一態様では、前記動作制御部は、前記充填状態に基づいて、前記充填剤塗布モジュールに指令を与えて、前記塗布装置による前記充填剤の塗布を終了させるようにさらに構成されている。
一態様では、前記動作制御部は、前記充填状態に基づいて、前記充填剤塗布モジュールに指令を与えて、前記充填剤を追加塗布するようにさらに構成されている。
一態様では、前記充填剤塗布モジュールは、前記基板保持部を回転させる回転機構をさらに備える。
一態様では、前記動作制御部は、前記充填状態に基づいて、前記充填剤の塗布条件を変更する。
図1Aおよび図1Bは、基板Wのエッジ部Eを示す拡大断面図である。より詳しくは、図1Aはいわゆるストレート型の基板Wの断面図であり、図1Bはいわゆるラウンド型の基板Wの断面図である。エッジ部Eは、基板Wの平坦面(表側面および裏側面)に対して傾いた最外側面であり、丸みを帯びた形状または面取りされた形状を有している。図1Aの基板Wにおいて、エッジ部Eは、上側傾斜部(上側ベベル部)B1、下側傾斜部(下側ベベル部)B2、および側部(アペックス)B3から構成される基板Wの最外周面である。図1Bの基板Wにおいて、エッジ部Eは、基板Wの最外周面を構成する、湾曲した断面を有する部分である。エッジ部Eは、ベベル部と呼ばれることもある。
ステップS101では、動作制御部10は、充填剤塗布モジュール9の回転機構8に指令を与えて、基板保持部2および積層基板Wsを所定の回転速度で回転させる。
ステップS102では、動作制御部10は、充填剤塗布モジュール9の開閉弁27に指令を与えて、開閉弁27を開き、気体供給源から塗布装置3に気体を供給させる。この動作によって、回転する積層基板Wsの第1基板W1のエッジ部E1と第2基板W2のエッジ部E2との隙間Gに充填剤Fが注入される。
ステップS103では、動作制御部10は、充填剤塗布モジュール9の硬化装置4に指令を与えて、積層基板Wsを加熱させ、塗布された充填剤Fを硬化させる。
ステップS104では、動作制御部10は、充填剤塗布モジュール9の赤外撮像装置5に指令を与えて、積層基板Ws上の測定点において積層基板Wsのエッジ部の画像を生成させる。
動作制御部10は、ターゲットT内の充填剤Fの大きさが所定の閾値よりも小さいときに、充填状態を「充填未了」と決定する(ステップS106-1)。動作制御部10は、充填状態を「充填未了」と決定した場合、充填剤塗布モジュール9に指令を与えて、塗布装置3による充填剤Fの塗布を継続させ、ステップS102~S105を繰り返す。
動作制御部10は、ターゲットT内の充填剤Fの大きさが所定の閾値以上のときに、充填状態を「充填完了」と決定する(ステップS106-2)。動作制御部10は、充填状態を「充填完了」と決定した場合、充填剤塗布モジュール9に指令を与えて、充填剤Fの塗布を終了させる。動作制御部10は、充填剤Fの塗布開始点が塗布装置3の塗布位置に到達したときに、充填剤塗布モジュール9に指令を与えて、充填剤Fの塗布を停止させてもよい。
動作制御部10は、充填剤FにボイドBが発生しているときに、充填状態を「ボイド発生」と決定する(ステップS206)。動作制御部10は、充填剤FにボイドBが発生していないと決定した場合(ステップ205の「No」)、充填剤塗布モジュール9による充填剤Fの塗布を継続させ、ステップS202~S205を繰り返す。
ステップS208では、動作制御部10は、ボイドBの数が所定の許容値に達しているかを判定する。動作制御部10は、ボイドBの数が許容値に達しているときに、「異常発生」と判断する(ステップS209)。動作制御部10は、「異常発生」と判断した場合、充填剤塗布モジュール9に指令を与えて、充填剤Fの塗布を終了させる。
動作制御部10は、ボイドBの数が所定の許容値に達していない場合(ステップS208の「No」)、充填剤塗布モジュール9に指令を与えて、充填剤Fの塗布を継続させ、ステップS202~S205を繰り返す。
2 基板保持部
3 塗布装置
4 硬化装置
5 赤外撮像装置
7 回転軸
8 回転機構
9 充填剤塗布モジュール
10 動作制御部
10a 記憶装置
10b 処理装置
21 シリンジ
21a 充填剤吐出口
22 ピストン
25 気体供給ライン
26 圧力調整装置
27 開閉弁
Claims (16)
- 第1基板と第2基板が接合された積層基板に充填剤を塗布する基板処理方法であって、
前記第1基板のエッジ部と前記第2基板のエッジ部との隙間に前記充填剤を塗布し、
塗布した前記充填剤を硬化し、
前記充填剤を塗布した前記積層基板のエッジ部の画像を赤外撮像装置により生成し、
前記画像に基づいて、前記隙間内の前記充填剤の充填状態を決定する、基板処理方法。 - 前記充填状態を決定する工程は、前記画像上の予め設定されたターゲット領域内の前記充填剤の大きさに基づいて、前記充填状態を決定する工程である、請求項1に記載の基板処理方法。
- 前記充填状態に基づいて、前記充填剤の塗布を終了する、請求項1または2に記載の基板処理方法。
- 前記充填状態に基づいて、前記充填剤を追加塗布する工程をさらに含む、請求項1または2に記載の基板処理方法。
- 前記画像上の前記充填剤内に発生したボイドの数を計数し、前記ボイドの数が許容値に達したときに、異常が生じていると判断する工程をさらに含む、請求項1乃至4のいずれか一項に記載の基板処理方法。
- 前記充填剤を塗布する工程、前記充填剤を硬化する工程、および前記画像を生成する工程は、前記積層基板を回転させながら行う、請求項1乃至5のいずれか一項に記載の基板処理方法。
- 前記充填状態に基づいて、前記充填剤の塗布条件を変更する、請求項6に記載の基板処理方法。
- 前記積層基板が一回転する間に、前記積層基板の複数の測定点で前記画像を生成し、
前記複数の測定点における前記充填状態と、前記複数の測定点の位置情報に基づいて、前記複数の測定点のうち少なくとも1つでの前記充填剤の塗布条件を変更する、請求項7に記載の基板処理方法。 - 前記充填状態に基づいて、次の積層基板の前記充填剤の塗布条件を変更する工程をさらに含む、請求項1に記載の基板処理方法。
- 前記塗布条件は、前記充填剤の総塗布量、前記充填剤を塗布するための塗布装置の充填剤吐出口の形状、前記積層基板と前記充填剤吐出口との距離、単位時間あたりの前記充填剤吐出口から吐出する前記充填剤の量、前記積層基板の回転速度のうちの少なくとも1つを含む、請求項7乃至9のいずれか一項に記載の基板処理方法。
- 前記赤外撮像装置は、赤外線を前記積層基板の前記第1基板と前記第2基板の接合面に対して略垂直に照射する、請求項1乃至10のいずれか一項に記載の基板処理方法。
- 第1基板と第2基板が接合された積層基板に充填剤を塗布するための基板処理装置であって、
前記積層基板に前記充填剤を塗布するように構成された充填剤塗布モジュールと、
前記充填剤塗布モジュールの動作を制御する動作制御部を備え、
前記充填剤塗布モジュールは、
前記積層基板を保持する基板保持部と、
前記第1基板のエッジ部と前記第2基板のエッジ部との隙間に、前記充填剤を塗布するための塗布装置と、
塗布した前記充填剤を硬化させるための硬化装置と、
前記充填剤を塗布した前記積層基板のエッジ部の画像を生成する赤外撮像装置を備え、
前記動作制御部は、前記画像に基づいて、前記隙間に塗布された前記充填剤の充填状態を決定するように構成されている、基板処理装置。 - 前記動作制御部は、前記充填状態に基づいて、前記充填剤塗布モジュールに指令を与えて、前記塗布装置による前記充填剤の塗布を終了させるようにさらに構成されている、請求項12に記載の基板処理装置。
- 前記動作制御部は、前記充填状態に基づいて、前記充填剤塗布モジュールに指令を与えて、前記充填剤を追加塗布するようにさらに構成されている、請求項12に記載の基板処理装置。
- 前記充填剤塗布モジュールは、前記基板保持部を回転させる回転機構をさらに備える、請求項12乃至14のいずれか一項に記載の基板処理装置。
- 前記動作制御部は、前記充填状態に基づいて、前記充填剤の塗布条件を変更する、請求項15に記載の基板処理装置。
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