WO2004070811A1 - 半導体製造装置 - Google Patents
半導体製造装置 Download PDFInfo
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- WO2004070811A1 WO2004070811A1 PCT/JP2004/000932 JP2004000932W WO2004070811A1 WO 2004070811 A1 WO2004070811 A1 WO 2004070811A1 JP 2004000932 W JP2004000932 W JP 2004000932W WO 2004070811 A1 WO2004070811 A1 WO 2004070811A1
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- manufacturing apparatus
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- semiconductor manufacturing
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- workpiece
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/6715—Apparatus for applying a liquid, a resin, an ink or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67069—Apparatus for fluid treatment for etching for drying etching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67075—Apparatus for fluid treatment for etching for wet etching
- H01L21/6708—Apparatus for fluid treatment for etching for wet etching using mainly spraying means, e.g. nozzles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67155—Apparatus for manufacturing or treating in a plurality of work-stations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67155—Apparatus for manufacturing or treating in a plurality of work-stations
- H01L21/67161—Apparatus for manufacturing or treating in a plurality of work-stations characterized by the layout of the process chambers
- H01L21/67173—Apparatus for manufacturing or treating in a plurality of work-stations characterized by the layout of the process chambers in-line arrangement
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67253—Process monitoring, e.g. flow or thickness monitoring
Definitions
- the present invention relates to a semiconductor manufacturing apparatus for manufacturing a wiring, a contact hole, and a display device, and more particularly, to a method for forming a resist pattern by a droplet ejection method (inkjet method, droplet ejection method), and a droplet ejection method. (Ink-jet method, droplet discharge method), metal wiring pattern fabrication method, local CVD (chemical vapor deposition) method performed at or near atmospheric pressure, and etching method
- the present invention relates to a semiconductor manufacturing apparatus for manufacturing a wiring, a contact hole and a display device. Further, the present invention relates to a semiconductor manufacturing apparatus for forming or etching a thin film. Background art
- Electro-optical devices such as LCDs (Liquid Crystal Display) and EL (Electro-Luminescence) displays, are thin films formed using thin films on insulating surfaces.
- Transistors TFTs are frequently used. TFTs are widely applied to integrated circuits and the like, and are often used as switching elements. With the increasing demand for higher definition, higher aperture ratio, higher reliability, and larger screens, TFTs have become an essential technology for display devices.
- TFT circuit patterns there are a vacuum process in which the inside of the processing apparatus is decompressed or vacuumed, and a photolithography process in which a mask made of resist (photoresist) is produced by an exposure apparatus and unnecessary portions are etched away. Used.
- an evacuation unit is required to evacuate or depressurize a process chamber for performing processing such as film formation and etching on an object to be processed.
- the exhaust means is a pump typified by a one-point molecular pump or a rotary pump installed outside the processing equipment, means for managing and controlling them, and an exhaust system is constructed by connecting the pump and the processing chamber. It consists of pipes, valves, etc. In order to prepare these facilities, space for exhaust means is required outside the processing equipment, and the cost for that is also required. In addition, since the exhaust system must be installed in the processing chamber itself, the size of the processing equipment will increase compared to those without an exhaust system.
- the conventional photolithography process for forming a circuit pattern such as a TFT for example, a photolithography process for forming a metal wiring is performed as follows. First, a metal thin film is formed on a substrate represented by glass. Next, a photosensitive resist (photoresist) is spin-coated on the metal thin film, the resist is formed on the entire surface of the metal thin film, and calcination is performed. Next Light irradiation is performed through a photomask on which a target pattern is formed. At this time, since the pattern on the photomask functions as a light-shielding pattern, the non-light-shielded resist is exposed to the pattern and can be removed by etching with a developing solution.
- a photosensitive resist photoresist
- the pattern of the photomask is transferred as a resist pattern. Further, using the resist formed in a pattern as a mask, the metal thin film which is not shielded by the resist pattern is etched away by immersing the resist in a solution for dissolving the metal thin film. Finally, the resist pattern is stripped to form a metal wiring according to the pattern formed on the photomask. Disclosure of the invention
- the size of the mother glass varies slightly depending on the manufacturer.For example, in the fourth generation, it is 730 x 920 mm, and in the fifth generation, it is 110 000 x 125 mm. For the sixth generation, a size of 180 mm x 200 mm is being considered.
- the manufacturing equipment also inevitably increases in size, requiring an extremely large floor area.
- the film forming process is performed in a vacuum, not only the size of the film forming chamber is increased, but also the scale of the attached vacuum pump and the like is increased, and the occupied area of the device is increased without limit.
- the present invention provides a means for directly drawing a wiring pattern or a resist pattern on a substrate, and further performs a gas-phase process such as film formation or etching under atmospheric pressure or near atmospheric pressure. Apply measures to be performed on a regular basis.
- the present invention provides means for transporting an object to be processed, at least one plasma generating means for performing a film forming process, an etching process, or an asshing process, and the plasma generating means in a direction intersecting a transport direction of the object to be processed.
- a semiconductor manufacturing apparatus having a moving unit, wherein the film forming process, the etching process, or the asshing process is performed on the workpiece by a combination of the transport of the workpiece and the movement of the plasma generating unit. It is characterized by performing.
- a semiconductor manufacturing apparatus comprising: means for transporting an object to be processed; and a plurality of plasma generating means for performing a film forming process, an etching process, or an asshing process, wherein the plurality of plasma generating units intersect with a direction in which the object to be processed is transported.
- the processing object is transported and at least one of the plurality of plasma generating means generates plasma to form a film forming process, an etching process, or an asshing process on the object. Is performed.
- a semiconductor manufacturing apparatus comprising at least one droplet ejecting unit and a unit for moving the droplet ejecting unit in a direction intersecting with the transport direction of the workpiece, wherein the transport of the workpiece and the liquid
- the method is characterized in that droplets are attached to the object by moving the droplet ejecting means.
- a semiconductor manufacturing apparatus comprising: means for transporting an object to be processed; and a plurality of droplet ejecting means for ejecting droplets onto the surface of the object to be processed.
- the processing object is disposed in a direction intersecting with the conveyance direction, and the processing object is transported and the droplets are ejected from at least one of the plurality of droplet ejecting means.
- the method is characterized in that a droplet is attached.
- a semiconductor having means for transporting an object to be processed, at least one plasma generating means for performing a film forming process, an etching process or an assing process, and at least one droplet ejecting means for attaching a droplet onto the object to be processed;
- the plasma generating means and the droplet ejecting means include a means for moving in a direction intersecting a transport direction of the workpiece, and the transport of the workpiece and the plasma generating means. And moving the droplet jetting means to deposit the film, the etching, the asshing, or the droplet on the object.
- the plurality of plasma generating means are arranged in a direction intersecting with the direction of transport of the object
- the plurality of droplet ejecting means are arranged in a direction intersecting the direction of transport of the object.
- the plasma processing is performed on the workpiece by transporting the workpiece and generating plasma in at least one of the plurality of plasma generating units.
- the asshing process is performed, and the droplet is attached to the object by moving the object and ejecting droplets from a droplet ejecting unit.
- the plasma generating means used in the present invention is characterized by generating plasma at or near atmospheric pressure.
- a type of gas to be supplied By selecting the type of gas to be supplied, one of a film forming process, an etching process and an ashing process is performed. Can be performed.
- a cylindrical shape having a second electrode surrounding the periphery of the first electrode and having a nozzle-like gas port at the tip thereof is used. Then, a process gas is supplied to the space between the two electrodes, plasma is generated between the two electrodes, and a reactive gas stream containing chemically active excited species such as ions and radicals generated by the plasma is processed. It has a feature of irradiating an object.
- the droplet ejecting means used in the present invention is a means using a so-called piezo method using a piezoelectric element, or a so-called thermal ink jet method in which, depending on the material of the droplet, a heating element generates heat to generate bubbles and push out the droplet. Is equivalent to
- the droplet ejection method includes a so-called sequential method in which droplets are continuously ejected to form a continuous linear pattern, and a so-called on-demand method in which droplets are ejected in a dot shape.
- a dispenser method In the case of forming a continuous linear pattern, it is preferable to use a dispenser method.
- the present invention having the above-described configuration can reduce the space and efficiency of the manufacturing line, contribute to significant quality improvement, productivity improvement, and reduction of manufacturing cost in the production of display panels. It is possible to provide a method for forming a through hole, various kinds of film formation, and a display device.
- FIGS. 1A and 1B are views showing a semiconductor manufacturing apparatus.
- FIGS. 2A to 2E are views showing plasma generating means.
- Embodiment 1 FIGS. 3A and 3B are views showing a semiconductor manufacturing apparatus.
- Embodiment 2 FIG. 4 is a diagram showing a droplet jet head. (Embodiment 3)
- FIG. 5A to FIG. 5C are views showing a liquid droplet ejection head.
- FIG. 6 is a diagram showing a droplet ejection head.
- Embodiment 4 is a diagram showing a droplet ejection head.
- FIG. 7A to 7C are views showing a liquid droplet ejection head.
- FIG. 8 is a diagram illustrating a semiconductor manufacturing apparatus. (Embodiment 5)
- FIG. 10 is a diagram showing a semiconductor manufacturing apparatus. (Example 1)
- FIG. 118 to FIG. 11D are diagrams showing the steps of manufacturing the wiring.
- Example 1 FIGS. 1128 to 12C are views showing the steps of manufacturing a thin film transistor.
- Example 2 FIG. 13A to FIG. 13C are views showing the steps of manufacturing a thin film transistor.
- Example 2
- FIG. 14 is a diagram showing a manufacturing process of a thin film transistor.
- Example 2 Figs. 15A to 15C are diagrams showing electronic devices.
- Embodiment 3 Best mode for carrying out the invention
- film formation processing or etching is performed at or near atmospheric pressure (5 to 800 Torr, 6.6 ⁇ 10 2 to 1.1 ⁇ 10 5 Pa) using a plasma generating means. Processing may be performed. Therefore, referring to FIGS. 1A to 2E, as an example of a plasma processing apparatus used in the present invention, a cylindrical electrode having a first electrode surrounding a second electrode and having a nozzle-shaped narrow opening at the tip thereof. An apparatus having the following will be described.
- FIG. 1A is a side view of an example of the plasma processing apparatus used in the present invention
- FIG. 1B is a top view.
- an opening chamber 101 contains a workpiece 103 such as a glass substrate of a desired size in a cassette 102, a resin substrate represented by a plastic substrate, or a semiconductor wafer represented by silicon. Is set.
- a method of transporting the workpiece 103 horizontal transport can be cited, but when a fifth generation or later substrate is used, a vertical transport with the substrate placed vertically for the purpose of reducing the occupied area can be performed. Good.
- the transport means 104a is arranged in the load chamber 101. Conveying means 104 a transports the workpiece 103 disposed in the load chamber 101 to the processing chamber 105.
- the processing chamber 105 includes plasma generating means 106 having cylindrical electrodes, rails 107 for moving the plasma generating means 106, and moving means 104 for moving the workpiece 103.
- heating means 108 for heating the substrate and the like are provided.
- a known heating means such as a heater or a lamp may be used as necessary.
- the object to be processed which has been subjected to the plasma processing in the processing chamber 105, is sent to the unload chamber 109 by the transfer means 104c, and is stored in the cassette 110 in the unload chamber.
- a film formation treatment or an etching treatment can be selected on the surface of the workpiece by appropriately selecting the type of gas flowing in the space between the two electrodes of the plasma generation means 106.
- Ashing treatment to remove organic substances by incineration is also a kind of etching treatment.
- a known gas such as silane, disilane, hydrogen, oxygen, nitrogen, ammonia, fluorine, chlorine, nitrogen trifluoride, carbon tetrafluoride, or the like may be used. May be used.
- An inert gas may be added for the purpose of dilution or stabilizing plasma.
- the rail 107 supports the plasma generating means 106 and is a mechanism for moving the plasma generating means 106 to an arbitrary position in the X direction that intersects (orthogonally) with the direction of transport (movement) of the workpiece. is there.
- the plasma generating means 106 moves in the X direction by the rail 107 and is set at an initial predetermined position for performing the plasma processing. Thereafter, when the object 103 reaches a predetermined position where the plasma generating means 106 is set, the plasma processing is started. Start.
- the object 103 may be moved continuously, or may be moved step by step, so-called step feed.
- the control unit 111 controls the relative positions of the plasma generation unit 106 and the object 103 to be processed, the parameters of the plasma processing, and the like collectively.
- control means 111 is connected to a production management system or the like by a LAN cable, a wireless LAN, an optical fiber, or the like, the process can be uniformly controlled from the outside, which leads to an improvement in productivity.
- the processing time can be further reduced by installing a plurality of plasma generating means.
- the present apparatus performs the processing while continuously moving the processing object, so that the processing chamber can be made smaller than the processing object.
- Significant processing time Needless to say, there is no need for a mechanism to evacuate or open to the atmosphere, nor a mechanism to maintain each space independently, greatly improving maintainability.
- FIG. 2A is a perspective view of plasma generating means 106 having a cylindrical electrode
- FIGS. 2B to 2D are cross-sectional views of the cylindrical electrode.
- dotted lines indicate gas paths
- 201 and 202 are electrodes made of conductive metal such as aluminum and copper
- the first electrode 201 is a power supply (high-frequency power supply).
- a cooling system (not shown) for circulating cooling water may be connected to the first electrode 201.
- the second electrode 202 has a shape surrounding the first electrode 201 and is electrically grounded.
- Each of the first electrode 201 and the second electrode 202 has a cylindrical shape having a nozzle-like gas port at the tip thereof.
- the surface of at least one of the first electrode 201 and the second electrode 202 is covered with a solid dielectric.
- Metal oxides such as silicon dioxide, aluminum oxide, zirconium dioxide, and titanium dioxide; polyethylene terephthalate; plastics such as polytetrafluoroethylene; glass; and composite oxides such as barium titanate Is mentioned.
- the solid dielectric may be in the form of a sheet or a film, but preferably has a thickness of 0.05 to 4 mm.
- a process gas 206 is supplied from a gas supply means (gas cylinder) 205 via a valve 204. Then, the atmosphere in this space is replaced, and in this state, when a high-frequency voltage (10 to 500 MHz) is applied to the first electrode 201 by the high-frequency power source 203, plasma is generated in the space. Occurs.
- a reactive gas stream containing chemically active excited species such as ions and radicals generated by the plasma is irradiated toward the surface of the object 103, the object 103 A predetermined surface treatment can be performed on the surface.
- the process gas filled in the gas supply means (gas cylinder) 205 is appropriately set according to the type of surface treatment performed in the processing chamber.
- Exhaust gas 207 is introduced into an exhaust system 209 via a valve 208.
- exhaust gas is detoxified by an exhaust gas treatment device and is discarded or collected.However, unreacted gas components in the exhaust gas are recirculated as process gas 206 through a filter 210. In addition, the efficiency of use of process gas can be increased, and the amount of exhaust gas emitted can be suppressed.
- FIG. 2C and 2D show cylindrical plasma generating means 106 having a cross section different from that of FIG. 2B.
- FIG. 2C shows that the first electrode 201 is longer than the second electrode 202, and that the first electrode 201 has an acute angle shape.
- the illustrated plasma generating means 106 has a shape for injecting a reactive gas flow containing a chemically active excited species generated between the first electrode 201 and the second electrode 202 to the outside.
- the cylindrical plasma generating means has been described as an example. However, the present invention is not limited to the cylindrical shape, and any shape of plasma generating means may be used.
- the distance between the tip of the plasma generating means and the surface of the object to be treated must be kept at 3 mm or less, preferably at 1 mm or less, more preferably at 0.5 mm or less.
- the distance between the plasma generating means and the surface of the object to be processed may be kept constant by using, for example, a distance sensor.
- the present invention using a plasma processing apparatus that operates under atmospheric pressure does not require the time for evacuation or opening to the atmosphere necessary for a decompression device, and does not require a complicated vacuum system. Especially when a large substrate is used, the chamber is inevitably increased in size and the processing time for reducing the pressure in the chamber is inevitably increased. Therefore, this apparatus operated under atmospheric pressure is effective, and the manufacturing cost is high. Can be reduced. INDUSTRIAL APPLICABILITY
- the present invention can be applied to various fields such as a wiring forming process of a semiconductor integrated circuit, and a wiring forming process of a TFT substrate for producing a liquid crystal panel or an EL panel. In other words, the present invention is not limited to the embodiment described in this embodiment, and is applicable to the case where an insulating film such as silicon oxide acrylic resin or a semiconductor pattern such as polycrystalline silicon or amorphous silicon is formed. Can also be applied.
- FIG. 3A is a side view of the plasma processing apparatus used in the present embodiment
- FIG. 3B is a top view.
- the plasma generating means 300 of the present embodiment is the same as the plasma generating means of the first embodiment.
- the means for generating 106 are arranged in a direction intersecting the transport direction of the object 303 (FIG. 2E).
- films of different materials can be formed in the same processing chamber. That is, it is possible to form a silicon nitride film by the first plasma generation means and form a silicon oxide film by another plasma generation means. Based on the data input to the control means 3 1 1, a silicon nitride film is formed in one part, a silicon oxide film is formed in another part, and a laminated film of both is formed in another part. It is also possible to do. Even when the same film is formed, the film formation rate is substantially improved. Even if a failure occurs in one of the plasma generating means, if a plurality of plasma generating means are provided, the other plasma generating means can be used as a spare, so that redundancy can be provided.
- the plasma processing apparatus of the first embodiment is applied to a point-like droplet ejecting apparatus.
- the plasma generating means is used in place of the dot-shaped droplet ejecting means.
- a droplet supplied from the outside to the inside of the droplet ejecting means 401 passes through the liquid chamber flow path 402 and is stored in the preliminary liquid chamber 403, and then a nozzle unit for ejecting the droplet. Move to 409.
- the nozzle section is set up so that appropriate droplets are loaded into the nozzle. It comprises a fluid resistance portion 404, a pressurizing chamber 405 for pressurizing and ejecting the droplet to the outside of the nozzle, and a droplet ejection hole 407.
- the droplet ejection is performed by a so-called piezo method using a piezoelectric element.
- a so-called thermal ink jet method may be used, in which a heating element generates heat to generate bubbles and push the droplet. good.
- the piezoelectric element 406 is replaced with a heating element.
- the nozzle 409 for ejecting the droplet, the droplet and the liquid chamber flow path 402, the preliminary liquid chamber 403, the fluid resistance section 404, the pressurizing chamber 405 The wettability with the hole 407 is important. Therefore, a carbon film, a resin film, or the like for adjusting wettability with a material may be formed in each flow path.
- the droplet ejection method includes a so-called sequential method in which droplets are continuously ejected to form a continuous linear pattern, and a so-called on-demand method in which droplets are ejected in a dot shape.
- the on-demand system is shown in the apparatus configuration, a head of a sequential system can be used.
- a dispenser method may be used.
- 5A to 5C schematically show the bottom of the head in FIG. You.
- FIG. 5A shows a basic arrangement in which one droplet ejection hole 502 is provided on the bottom surface of the head 501.
- FIG. 5A shows a basic arrangement in which one droplet ejection hole 502 is provided on the bottom surface of the head 501.
- FIG. 5A shows a basic arrangement in which one droplet ejection hole 502 is provided on the bottom surface of the head 501.
- FIG. 5A shows a basic arrangement in which one droplet ejection hole 502 is provided on the bottom surface of the head 501.
- FIG. 5B shows a so-called cluster-like arrangement in which the number of droplet ejection holes 504 at the bottom of the head 503 is increased to three so as to form a triangle.
- the droplet ejection holes at the bottom of the head 505 are arranged vertically.
- the layers can be made thicker by applying more droplets.
- the lower droplet ejection hole can be made to function as a spare.
- the droplets of the droplet ejecting apparatus include a resist, a paste-like metal material, an organic solvent containing the paste-like metal material, an ultrafine metal material, and the ultrafine metal.
- An organic solvent or the like containing the material can be used.
- the size of the metal particles in the organic solvent should be 100 jm or less, preferably 1 m or less, and more preferably ⁇ 100 nm or less, in order to keep good coverage especially in the contact hole. .
- droplets may be heated and dried at the time of landing of the droplets by using a heating means, or may be heated and dried after the landing of the droplets on a required area is completed.
- the resist is baked by heat treatment and can be used as a mask for etching.
- the organic solvent containing the ultrafine metal material the organic solvent is volatilized by the heat treatment, and the ultrafine metal is combined with the metal solvent, thereby distributing the metal. Can be used as a line. Note that in the present invention, an exposure step using a photomask is not required, so that it is not necessary to use a photosensitive resist as long as it functions as a resist.
- a linear droplet ejecting device will be described as an ejecting device different from the above-described point-like droplet ejecting device.
- Each nozzle part 609 has a fluid resistance part 603 provided for loading an appropriate droplet into the nozzle, and a pressurizing chamber 604 for pressurizing the droplet and ejecting it to the outside of the nozzle. , And droplet ejection holes 606.
- titanate-Jirukoniu beam acid, lead (P b (Z r, T i) 0 3) which is deformed by applying a voltage to the piezoelectric element 6 0 5 having a piezoelectric effect such as Are placed.
- the piezoelectric element 605 arranged in the target nozzle by applying a voltage to the piezoelectric element 605 arranged in the target nozzle, the droplet in the pressurizing chamber 604 can be pushed out, and the droplet 607 can be ejected to the outside.
- each piezoelectric element is insulated by the insulator 608 in contact with the piezoelectric element, it is possible to control the ejection of each nozzle without making electrical contact with each other.
- the droplet ejection is performed by a so-called piezo method using a piezoelectric element.
- a so-called thermal ink jet is generated by generating heat from a heating element to push out the droplet.
- a method may be used.
- the piezoelectric element 6 05 is replaced with a heating element.
- the droplet, the common liquid chamber flow path 602, the fluid resistance section 603, the pressurizing chamber 604, and the droplet ejection hole 606 Is important. Therefore, a carbon film, a resin film, or the like for adjusting wettability with a material may be formed in each flow path.
- the droplet ejection method includes a so-called sequential method in which droplets are continuously ejected to form a continuous linear pattern, and a so-called on-demand method in which droplets are ejected in a dot shape.
- the on-demand system is shown in the device configuration, it is also possible to use a sequential system head.
- a dispenser method may be used.
- FIG. 7A shows a basic configuration in which droplet ejection holes 720 are arranged linearly on the bottom surface of a head 701.
- FIG. 7A shows a basic configuration in which droplet ejection holes 720 are arranged linearly on the bottom surface of a head 701.
- FIG. 7A shows a basic configuration in which droplet ejection holes 720 are arranged linearly on the bottom surface of a head 701.
- FIG. 7A shows a basic configuration in which droplet ejection holes 720 are arranged linearly on the bottom surface of a head 701.
- FIG. 7A shows a basic configuration in which droplet
- the liquid droplet ejection holes 704 at the bottom portion 703 of the head are arranged in two rows, and the rows are shifted by half a pitch.
- the droplet ejection holes at the bottom of the nozzles J and 705 are arranged so that the number of rows is increased without shifting the pitch.
- the same droplet is ejected from the droplet ejection hole 707 to the same location with a time difference.
- the liquid droplets can be further thickened by further applying the droplets.
- the present invention can be applied to various fields such as a wiring forming process of a semiconductor integrated circuit and a wiring forming process of a TFT substrate for producing a liquid crystal panel or an EL panel.
- the present invention is not limited to the embodiment described in this embodiment, and is applicable to the case where an insulating film such as silicon oxide acrylic resin or a semiconductor pattern such as polycrystalline silicon or amorphous silicon is formed. Can also be applied.
- the present embodiment is an example of a resist pattern forming apparatus with a rework function. This embodiment will be described with reference to FIG.
- FIG. 8 is a side view of the device described in the present embodiment.
- an inlet chamber 801 is used for processing a glass substrate of a desired size, a resin substrate typified by a plastic substrate, or a semiconductor wafer typified by silicon in a cassette 802.
- Object 803 is set.
- horizontal transport can be mentioned, but when using substrates of the fifth generation or later, the substrates are placed vertically to reduce the area occupied by the transporter. Vertical transfer may be performed.
- a transfer means 804a is arranged in the load chamber 800.
- the transfer means 804a transfers the placed object to be processed 803 to the first processing chamber 805.
- a resist pattern is formed on the object to be processed 803 by the droplet jetting means 809.
- a pattern inspection is performed in the second processing chamber 806 for a defective portion of the resist pattern formed in the first processing chamber 805.
- the second processing chamber 806 is provided with imaging means 810 for pattern inspection.
- Imaging means 8 10 The resist pattern is photographed and compared with the correct pattern data by the control means 820 to determine whether or not the pattern is defective. If it is determined that the pattern is defective, the position information of the part is stored.
- the defective pattern is removed by etching according to the positional information of the defective pattern obtained in the second processing chamber 806. If oxygen gas is used as the etching gas, the resist can be easily removed. The removal effect can be further enhanced by appropriately mixing a fluorine-based gas.
- the plasma generating means 8 11 provided in the third processing chamber may be moved to an arbitrary position by using the mechanism for moving as described in Embodiment 1, or may be moved to Embodiment 2. A plurality may be arranged as described in.
- a resist pattern is formed again by the droplet ejecting means 812 on the portion removed in the third processing chamber 807, thereby reworking the defective resist pattern. Is completed.
- the present embodiment it is possible to improve a decrease in yield due to a defective shape of the resist pattern. Defects such as pattern defects have a greater effect on yield in later processes.
- This embodiment can be applied to a case where a film pattern is directly formed without using a resist pattern as described in the first embodiment.
- FIG. 9A is a side view of the plasma processing apparatus described in the present embodiment
- FIG. 9B is a view illustrating a processing state in the processing chamber 905.
- a wiring pattern is formed on the object to be processed, and an insulating film is further formed thereon, and the surface of the insulating film becomes uneven reflecting the shape of the wiring pattern. Is assumed.
- a load chamber 91 contains a workpiece 9 such as a glass substrate of a desired size, a resin substrate represented by a plastic substrate, or a semiconductor wafer represented by silicon contained in a cassette 902. 0 3 is set.
- a method of transporting the object 903 horizontal transport can be cited, but when using substrates of the fifth generation or later, a vertical transport in which the substrates are placed vertically for the purpose of reducing the area occupied by the transporter. May be performed.
- a transfer means 904 a is arranged in the load chamber 901.
- the transfer means 904a transfers the placed object to be processed 903 to the processing chamber 905.
- the processing chamber 905 is provided with surface unevenness detecting means 906 and plasma generating means 907.
- the surface unevenness detecting means 906 and the plasma generating means 907 may be installed separately in separate processing chambers as needed.
- the unevenness of the surface of the object to be processed 903 is measured by the surface unevenness detecting means 906.
- the measurement result is sent to the control means 9 11.
- a known distance sensor or displacement sensor can be applied to the surface unevenness detecting means 906, and may be a contact type or a non-contact type.
- the contact type can measure with higher accuracy, but the surface of the object to be treated is scratched.
- Non-contact type is more preferable because it may be a cause of adhesion of contaminants and the like.
- the unevenness of the object 9.03 is removed by etching with the plasma generating means 907, so that the surface of the object 903 can be made flat. This can be achieved by the control means 911 appropriately changing the output of the plasma generation means 907 and the gas flow rate based on the shape data obtained by the surface unevenness detection means 906.
- a flat surface can be obtained without using the CMP method, so that it is not necessary to use a polishing agent essential for the CMP method, and the environment is friendly. Also, since no extra stress is applied to the workpiece, improvement in yield and characteristics can be expected.
- an uneven shape can be formed in a reflective display device.
- an uneven shape can be imparted to the surface of a reflective electrode or an underlying film in order to improve reflection efficiency.
- FIGS. 10 and 11A to 11D a method for connecting a plurality of processing chambers and forming a film pattern on an object to be processed will be described with reference to FIGS. 10 and 11A to 11D.
- FIG. 10 is a side view of the device described in this embodiment.
- an object to be processed such as a glass substrate of a desired size, a resin substrate typified by a plastic substrate, or a semiconductor wafer typified by silicon in a cassette 1002 is placed.
- 0 3 is set.
- horizontal transport can be cited, but when using substrates of the fifth generation or later, the substrates are placed vertically to reduce the area occupied by the transporter. Vertical transport may be performed.
- Transport means 1004a is arranged in the load chamber 1001.
- the transport means 1004a transports the disposed object to be processed 1003 to the first processing chamber 1005.
- a film 1021 is formed while passing through the first processing chamber 1005.
- silane or a mixed gas of silane and hydrogen may be used as a material gas.
- FIG. 11A In this example, a resist pattern is formed in a later step in order to form a high-precision pattern, but it is not necessary to form a coating on the entire surface of the object to be processed 103.
- the film may be selectively formed as a pattern slightly larger than the resist pattern. By doing so, raw materials can be saved, and film formation costs can be reduced.
- the plasma generating means 109 provided in the first processing chamber may be moved to an arbitrary position by using a moving mechanism, and in the second embodiment, A plurality may be arranged as described.
- a resist pattern 102 is formed on the film 102 formed in the first processing chamber 105 (FIG. 11B).
- the droplet ejecting means 100 described in Embodiment 3 or Embodiment 4 is provided in the second processing chamber. Based on the data input to the control means 102, a resist pattern 102 is formed by dropping a resist only on a necessary portion. Further, the baking is completed by the heating means 107 before the dropped resist pattern enters the third processing chamber 107.
- the droplet ejecting means provided in the second processing chamber may have a dot shape as described in the third embodiment, or may have a linear shape as described in the fourth embodiment.
- the coating formed in the first processing chamber 105 is removed by etching in the third processing chamber 107 (FIG. 11C).
- the film located under the portion where the resist pattern 102 was formed in the second processing chamber 106 is not removed because it is not exposed to the etching gas.
- a fluorine-based gas, a chlorine gas, a mixed gas of carbon tetrafluoride and oxygen, or the like may be appropriately used.
- the plasma generating means 101 provided in the third processing chamber may have a dot shape as described in the first embodiment, or may have a linear shape as described in the second embodiment.
- the resist pattern 102 is removed in the fourth processing chamber 108 (FIG. 11D).
- the plasma generation means 110 12 provided in the fourth processing chamber may have a dot shape as described in the first embodiment, or may have a linear shape as described in the second embodiment.
- the object to be processed after the above steps is finally stored in the cassette 109 of the unload chamber 110-18.
- the film formation, the resist pattern formation, the etching, and the resist removal are performed while moving continuously on the object to be processed.
- the next step can be started before one step is completed, so that the processing time can be greatly reduced.
- the processing chamber can be made smaller than the object to be processed, so that the area occupied by the apparatus can be reduced.
- This embodiment uses a droplet ejecting apparatus having a droplet ejecting head in which the dot-shaped droplet ejecting holes are linearly arranged, and a plasma processing apparatus having a plasma generating mechanism under atmospheric pressure. A method for manufacturing an electro-optical device will be described. This embodiment will be described with reference to FIGS. 12A to 14.
- the design rules for large-screen TV applications are that the pixel pitch is about 50-750 im both vertically and horizontally, gate metal (capacity wiring) is about 5-50 im, and source wiring is 5-25 jLt. m and contact hole 2.5 to 30 m.
- Conductive liquid droplets of the present invention are used to deposit conductive droplets on a substrate to be processed 201 made of a material such as glass, quartz, semiconductor, plastic, plastic film, metal, glass epoxy resin, or ceramic. Spray where needed A gate electrode and a wiring 1202 and a capacitor electrode and a wiring 1203 are formed (FIG. 12A).
- a composition in which a conductive material is dissolved or dispersed in a solvent is used.
- the conductive materials include metals such as Ag, Au, Cu, Ni, Pt, Pd, Ir, Rh, W, and Al, metal sulfides of Cd and Zn, Fe, and T It corresponds to oxides such as i, Si, Ge, Si, Zr, and Ba, fine particles of silver halide, or dispersible nanoparticles.
- ITO indium tin oxide
- ITSO indium tin oxide
- ITSO composed of indium tin oxide and silicon oxide, organic indium, organic tin, zinc oxide, titanium nitride, and the like.
- a composition in which any one of Au, Ag, and Cu is dissolved or dispersed in a solvent and more preferably, the composition to be injected from the injection port.
- low-resistance Au or Cu may be used.
- a barrier film may be provided together to prevent impurities.
- a silicon nitride film or nickel boron (NiB) can be used.
- particles formed of a plurality of layers in which another conductive material is coated around the conductive material may be used.
- a three-layered particle in which nickel boron (NiB) is coated around copper and silver is coated around copper may be used.
- the solvent esters such as butyl acetate and ethyl acetate, alcohols such as isopropyl alcohol and ethyl alcohol, and organic solvents such as methyl ethyl ketone and acetone are used.
- the viscosity of the composition is preferably less than 20 cP, which prevents drying from occurring and This is to make it possible to smoothly jet.
- the surface tension of the composition is preferably 4 OmNZm or less.
- the viscosity and the like of the composition may be appropriately adjusted according to the solvent used and the application.
- the viscosity of a composition obtained by dissolving or dispersing ITO, organic indium, or organotin in a solvent has a viscosity of 5 to 5 OmPas
- the viscosity of a composition obtained by dissolving or dispersing Ag in a solvent has a viscosity of 5 to 5 OmPas.
- the viscosity of a composition obtained by dissolving or dispersing ⁇ 2 OmPa ⁇ s and Au in a solvent is preferably set to 10 to 20 mPa-s.
- the diameter of the nozzle used for the droplet ejecting means is set to 0.1 to 50 m (preferably 0.6 to 26 rn.), And the ejection amount of the composition ejected from the nozzle is 0.000. It is set to 1 pl to 50 pl (preferably 0.0001 to 40 pl). This injection amount increases in proportion to the diameter of the nozzle. Further, the distance between the object to be treated and the nozzle orifice is preferably set as short as possible in order to drip at a desired location, and is preferably set to about 0.1 to 2 mm. Note that the injection amount can be controlled by changing the pulse voltage applied to the piezoelectric element without changing the nozzle diameter. It is desirable that these injection conditions are set so that the line width is about 10 jtm or less.
- the substrate on which the gate electrode and the wiring 1202 and the capacitor electrode and the wiring 1203 are formed is subjected to heat treatment or the like to volatilize the solvent of the droplet and form a conductive wiring.
- conductive wiring may be formed by directly forming a resist pattern using a droplet ejecting apparatus.
- the aforementioned liquid having conductivity The droplet does not need to be formed on the entire surface of the object to be processed, but may be formed as a pattern slightly larger than the resist pattern.
- a gate insulating film 1204 is formed using the plasma processing apparatus described in Embodiments 1 and 2 (FIG. 12B).
- a silicon nitride film is formed as the gate insulating film 1204 by the CVD method under the atmospheric pressure, but a silicon oxide film or a laminated structure thereof may be formed. May be.
- the active semiconductor layer 1205 is formed to a thickness of 25 to 8 Onm (preferably 30 to 60 nm) (FIG. 12C).
- the active semiconductor layer 1205 is an amorphous semiconductor film typified by an amorphous silicon film.
- the active semiconductor pattern may be formed by directly forming a resist pattern by a droplet ejecting apparatus.
- an amorphous semiconductor film 1206 to which an impurity element imparting N-type conductivity is added is formed on the active semiconductor layer 1205 (FIG. 138).
- source / drain electrodes and wirings 1207 and 1208 are formed using the linear droplet ejecting apparatus of the present invention (FIG. 13B).
- the source / drain electrodes and wirings 1207 and 1208 can be patterned by using a resist pattern if necessary, similarly to the gate electrode and wiring 1202, the capacitance electrode and wiring 1203 shown in FIG. 12A. Shape accuracy can be improved.
- a pixel electrode 1209 is formed by a droplet ejecting apparatus (FIG. 13C).
- the pixel electrode 1209 may be directly drawn by a droplet jetting / ejecting device or may be formed by patterning in the same manner as the gate electrode and the wiring 1202, the capacitor electrode, and the wiring 1203 shown in FIG. 12A. good.
- a silicon nitride film is formed as a protective film 1210 (FIG. 14).
- a silicon nitride film is formed as the protective film 1210; however, a silicon oxide film or a stacked structure thereof may be formed, or another insulating material may be used. Also, an organic resin film such as an acrylic film can be used.
- FIGS. 15A to 15C Various electronic devices can be completed using the present invention. A specific example will be described with reference to FIGS. 15A to 15C.
- FIG. 15A shows a display device having a large display unit of, for example, 20 to 80 inches, and has a housing 1501, a support base 1502, a display unit 1503, a part of speed controller 1504, and a video input terminal. Includes 1505 etc.
- the present invention is applied to manufacturing of the display portion 1503.
- Such large-sized display devices are the so-called fifth-generation (1000 x 1200 mm), sixth-generation (1400 x 1600 mm), and seventh-generation (1500 x 1800) in terms of productivity and cost. It is preferable to use a large substrate such as (mm).
- FIG. 15B illustrates a notebook personal computer, which includes a main body 1601, a housing 1602, a display portion 1603, a keyboard 1604, an external connection port 1605, a pointing mouse 1606, and the like.
- the present invention is applied to the manufacture of the display portion 1603.
- Figure 15C shows a portable image playback device with a recording medium (specifically, a DVD player).
- Main unit 1701, housing 1702, display section A1703, display section B1704, recording medium (DVD etc.) reading section 1705, operation keys Includes one hundred and seventy six, the speaker part one hundred and seventy seven
- the display section A1703 mainly displays image information
- the display section B1704 mainly displays character information. In the present invention, these display sections A, B1703, 170 Applied to fabrication of 4.
- the applicable range of the present invention is extremely wide, and the present invention can be applied to the manufacture of electronic devices in all fields.
- the present invention can be freely combined with the above-described embodiments and examples.
- a composition in which metal fine particles are dispersed in an organic solvent is used to form a wiring pattern.
- Fine metal particles having an average particle diameter of 1 to 50 nm, preferably 3 to 7 nm are used. Typically, these are fine particles of silver or gold, the surface of which is coated with a dispersant such as amine, alcohol, or thiol.
- the organic solvent is a phenol resin, an epoxy resin, or the like, and a thermosetting or photocuring resin is used. The viscosity of this composition may be adjusted by adding a thixotropic agent or a diluting solvent.
- An appropriate amount of the composition discharged onto the surface to be formed by the droplet discharging means hardens the organic solvent by heat treatment or light irradiation treatment. Due to the volume shrinkage caused by the curing of the organic solvent, the metal fine particles come into contact with each other and promote fusion, fusion or aggregation. That is, a wiring in which metal fine particles having an average particle diameter of 1 to 50 nm, preferably 3 to 7 nm are fused, fused or aggregated is formed. As described above, by forming a state in which metal fine particles come into surface contact with each other by fusion, fusion, or aggregation, Low resistance of the wiring can be realized.
- the present invention by forming a wiring pattern using such a composition, it is easy to form a wiring pattern having a line width of about 1 to 10 m. Similarly, even if the diameter of the contact hole is about 1 to 10 m, the composition can be filled therein. That is, a multilayer wiring structure can be formed with a fine wiring pattern.
- an insulating pattern can be similarly formed.
- the space and efficiency of the production line can be reduced, and the quality of the display panel can be significantly improved, the productivity can be improved, and the production cost can be reduced.
- high-speed, continuous processing is possible because of the atmospheric pressure method that enables in-line processing linked to production.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Thin Film Transistor (AREA)
- Electrodes Of Semiconductors (AREA)
- Drying Of Semiconductors (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020117003501A KR101229385B1 (ko) | 2003-02-06 | 2004-01-30 | 반도체 제조장치 |
KR1020057013795A KR101113773B1 (ko) | 2003-02-06 | 2004-01-30 | 반도체 제조장치 |
JP2004564064A JP4593287B2 (ja) | 2003-02-06 | 2004-01-30 | 半導体製造装置 |
Applications Claiming Priority (2)
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JP2003-029116 | 2003-02-06 | ||
JP2003029116 | 2003-02-06 |
Publications (1)
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WO2004070811A1 true WO2004070811A1 (ja) | 2004-08-19 |
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PCT/JP2004/000932 WO2004070811A1 (ja) | 2003-02-06 | 2004-01-30 | 半導体製造装置 |
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US (2) | US7922819B2 (ja) |
JP (1) | JP4593287B2 (ja) |
KR (3) | KR20110031384A (ja) |
CN (2) | CN100472731C (ja) |
WO (1) | WO2004070811A1 (ja) |
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JP2020004877A (ja) * | 2018-06-28 | 2020-01-09 | キヤノン株式会社 | 平坦化装置、平坦化方法、物品製造方法及び液滴配置パターンデータの作成方法 |
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Also Published As
Publication number | Publication date |
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CN100472731C (zh) | 2009-03-25 |
US20050167404A1 (en) | 2005-08-04 |
KR20110031384A (ko) | 2011-03-25 |
JP4593287B2 (ja) | 2010-12-08 |
JPWO2004070811A1 (ja) | 2006-05-25 |
KR20110018470A (ko) | 2011-02-23 |
US20110073256A1 (en) | 2011-03-31 |
CN101552230B (zh) | 2011-05-25 |
CN1748294A (zh) | 2006-03-15 |
US7922819B2 (en) | 2011-04-12 |
KR101113773B1 (ko) | 2012-03-13 |
KR20050095877A (ko) | 2005-10-04 |
CN101552230A (zh) | 2009-10-07 |
KR101229385B1 (ko) | 2013-02-05 |
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