WO2018173197A1 - 発熱体、基板処理装置および半導体装置の製造方法 - Google Patents
発熱体、基板処理装置および半導体装置の製造方法 Download PDFInfo
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- WO2018173197A1 WO2018173197A1 PCT/JP2017/011735 JP2017011735W WO2018173197A1 WO 2018173197 A1 WO2018173197 A1 WO 2018173197A1 JP 2017011735 W JP2017011735 W JP 2017011735W WO 2018173197 A1 WO2018173197 A1 WO 2018173197A1
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- Prior art keywords
- substrate
- wafer
- heating element
- susceptor
- processing
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- H01L21/67303—Vertical boat type carrier whereby the substrates are horizontally supported, e.g. comprising rod-shaped elements
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Definitions
- the present invention relates to a heating element, a substrate processing apparatus, and a method for manufacturing a semiconductor device.
- a substrate in a processing chamber is heated using a heating device to change a composition or a crystal structure in a thin film formed on the surface of the substrate.
- a modification process typified by an annealing process for repairing crystal defects or the like in the formed thin film.
- miniaturization and high integration have been remarkable in semiconductor devices, and accordingly, a modification process to a high-density substrate on which a pattern having a high aspect ratio is formed is required.
- a heat treatment method using microwaves has been studied.
- microwaves are concentrated on the edge portion, which is the outer edge of the components inside the processing chamber such as the substrate, and an edge effect occurs in which the edge portion is overheated, and the substrate is processed uniformly. May be difficult.
- An object of the present invention is to provide a microwave processing technique capable of uniformly processing a substrate.
- a heating element used in a substrate processing apparatus for heating and processing a substrate held by a substrate holder by a microwave Provided is a technology including a heating element that is formed in an annular shape by a dielectric that generates heat by the microwave, and is held by the substrate holder at a position where an inner circumference is located outside an outer circumference of the substrate and is not in contact with the substrate. Is done.
- FIG. 6 (A) It is the horizontal sectional view which showed the case where the susceptor shown in FIG. 6 (B) was hold
- B) It is the side view which showed the case where the susceptor shown in FIG. 6 (B) was hold
- A) It is a schematic diagram which shows the edge effect at the time of performing a substrate process without using a susceptor.
- FIG. 7B is a schematic diagram showing an edge effect when substrate processing is performed using the susceptor shown in FIG. (A) It is the figure which showed sheet resistance distribution at the time of performing a substrate process without using a susceptor.
- FIG. 10 It is a horizontal sectional view showing the case where the susceptor shown in FIG. 10 (B) is held on the substrate holder shown in FIG. 10 (A).
- B It is the side view which showed the case where the susceptor shown in FIG.10 (B) was hold
- A It is a schematic block diagram of the board
- FIG. 13A is a horizontal sectional view showing a case where the susceptor shown in FIG. 12B is held in the substrate holding structure shown in FIG. (B) It is the side view which showed the case where the susceptor shown in FIG.10 (B) was hold
- a substrate processing apparatus 100 is configured as a single wafer heat treatment apparatus that performs various heat treatments on a wafer, and an annealing process using electromagnetic waves to be described later.
- the apparatus will be described as an apparatus for performing (reforming treatment).
- a FOUP Front Opening Unified Pod: hereinafter referred to as a pod
- a pod 110 is used as a storage container (carrier) that stores a wafer 200 as a substrate therein.
- the pod 110 is also used as a transfer container for transferring the wafer 200 between various substrate processing apparatuses.
- the substrate processing apparatus 100 is provided on a transfer housing (housing) 202 having a transfer chamber (transfer area) 203 for transferring a wafer 200 inside, and on a side wall of the transfer housing 202.
- cases 102-1 and 102-2 are provided as processing containers, which will be described later, each having processing chambers 201-1 and 201-2 for processing the wafer 200 therein.
- a load port unit (LP) 106 is disposed as an opening / closing mechanism.
- the load port unit 106 includes a casing 106a, a stage 106b, and an opener 106c.
- the stage 106b mounts the pod 110, and a pod is connected to the substrate loading / unloading port 134 formed in front of the casing of the transfer chamber 203.
- the lid 110 (not shown) provided on the pod 110 is opened and closed by the opener 106c.
- the casing 202 has a purge gas circulation structure provided with a clean unit 166 for circulating a purge gas such as N 2 in the transfer chamber 203.
- Gate valves 205-1 and 205-2 for opening and closing the processing chambers 201-1 and 202-2 are provided on the left side (upper side in FIG. 2) of FIG. Each is arranged.
- a transfer machine 125 as a substrate transfer mechanism (substrate transfer robot) for transferring the wafer 200 is installed in the transfer chamber 203.
- the transfer machine 125 can rotate or linearly move each of the tweezers (arms) 125a-1 and 125a-2 and the tweezers 125a-1 and 125a-2 as placement units on which the wafer 200 is placed. It includes a transfer device 125b and a transfer device elevator 125c that moves the transfer device 125b up and down.
- the wafer 200 is loaded (charged) or removed (discharged) on a substrate holder 217 or a pod 110 described later. This is possible.
- each of the cases 102-1, 102-2, the processing chambers 201-1, 201-2, and the tweezers 125a-1 and 125a-2 are simply the case 102, the processing, unless it is necessary to distinguish them.
- the chamber 201 is described as a tweezer 125a.
- a wafer cooling mounting tool 108 for cooling the processed wafer 200 is provided on the wafer cooling table 109.
- the wafer cooling mounting tool 108 has the same structure as a boat 217 as a substrate holder described later, and horizontally holds a plurality of wafers 200 in a plurality of vertical stages by a plurality of wafer holding grooves (holding portions). It is configured to be possible.
- the wafer cooling mounting tool 108 and the wafer cooling table 109 are provided above the positions where the substrate carry-in / out port 134 and the gate valve 205 are installed, so that the wafer 200 is transferred from the pod 110 to the processing chamber 201 by the transfer device 125.
- the wafer cooling mounting tool 108 and the wafer cooling table 109 may be collectively referred to as a cooling area (cooling area).
- the pressure in the pod 110, the pressure in the transfer chamber 203, and the pressure in the processing chamber 201 are all controlled by atmospheric pressure or a pressure about 10 to 200 Pa (gauge pressure) higher than atmospheric pressure.
- the pressure in the transfer chamber 203 is preferably higher than the pressure in the processing chamber 201, and the pressure in the processing chamber 201 is preferably higher than the pressure in the pod 110.
- a processing furnace having a substrate processing structure as shown in FIG. 3 is configured.
- FIG. 2 in the present embodiment, a plurality of processing furnaces are provided.
- the processing furnace has a case 102 as a cavity (processing container) made of a material that reflects electromagnetic waves such as metal.
- a cap flange (blocking plate) 104 made of a metal material closes the ceiling surface of the case 102 via an O-ring (not shown) as a sealing member (seal member).
- a space inside the case 102 and the cap flange 104 is mainly configured as a processing chamber 201 for processing a substrate such as a silicon wafer.
- a reaction tube (not shown) made of quartz that transmits electromagnetic waves may be installed inside the case 102, and the processing vessel may be configured so that the inside of the reaction tube becomes a processing chamber. Further, the processing chamber 201 may be configured using the case 102 with the ceiling closed without providing the cap flange 104.
- a mounting table 210 is provided in the processing chamber 201, and a boat 217 as a substrate holder for holding the wafer 200 as a substrate is mounted on the upper surface of the mounting table 210.
- the boat 217 holds a wafer 200 to be processed and quartz plates 101 a and 101 b as heat insulating plates placed vertically above and below the wafer 200 so as to sandwich the wafer 200 at a predetermined interval.
- a silicon plate (Si plate), a silicon carbide plate (SiC plate) or the like absorbs electromagnetic waves and is heated (generates heat).
- Susceptors (also referred to as energy conversion members, radiation plates, soaking plates, and heating elements) 103a and 103b for indirectly heating the wafer 200 formed of a dielectric material such as a dielectric may be mounted. With this configuration, the wafer 200 can be more efficiently and uniformly heated by the radiant heat from the susceptors 103a and 103b.
- the quartz plates 101a and 101b and the susceptors 103a and 103b are the same components, and will be referred to as the quartz plate 101 and the susceptor 103 in the following unless there is no need to distinguish between them. To do.
- the case 102 as a processing container has a circular cross section, for example, and is configured as a flat sealed container.
- the transport container 202 as a lower container is made of, for example, a metal material such as aluminum (Al) or stainless steel (SUS), or quartz.
- a space surrounded by the case 102 may be referred to as a processing chamber 201 or a reaction area 201 as a processing space
- a space surrounded by the transfer container 202 may be referred to as a transfer chamber 203 or a transfer area 203 as a transfer space.
- the processing chamber 201 and the transfer chamber 203 are not limited to being configured to be adjacent in the horizontal direction as in the present embodiment, and may be configured to be adjacent in the vertical direction.
- a substrate loading / unloading port 206 adjacent to the gate valve 205 is provided on the side surface of the transfer container 202, and the wafer 200 is processed via the substrate loading / unloading port 206. It moves between the chamber 201 and the transfer chamber 203.
- An electromagnetic wave supply unit as a heating device which will be described in detail later, is installed on the side surface of the case 102.
- An electromagnetic wave such as a microwave supplied from the electromagnetic wave supply unit is introduced into the processing chamber 201 to heat the wafer 200 and the like. Then, the wafer 200 is processed.
- the mounting table 210 is supported by a shaft 255 as a rotating shaft.
- the shaft 255 passes through the bottom of the case 102 and is further connected to a drive mechanism 267 that performs a rotation operation outside the transport container 202.
- the wafer 200 mounted on the boat 217 can be rotated by operating the drive mechanism 267 to rotate the shaft 255 and the mounting table 210.
- the periphery of the lower end portion of the shaft 255 is covered with a bellows 212, and the inside of the processing chamber 201 and the transfer area 203 is kept airtight.
- the mounting table 210 is raised or lowered by the driving mechanism 267 so that the wafer 200 becomes the wafer transfer position when the wafer 200 is transferred, and the wafer 200 is processed when the wafer 200 is processed.
- An exhaust unit that exhausts the atmosphere of the processing chamber 201 is provided below the processing chamber 201 and on the outer peripheral side of the mounting table 210. As shown in FIG. 1, an exhaust port 221 is provided in the exhaust part. An exhaust pipe 231 is connected to the exhaust port 221, and a pressure regulator 244 such as an APC valve that controls the valve opening degree according to the pressure in the processing chamber 201 and a vacuum pump 246 are connected in series to the exhaust pipe 231. It is connected to the.
- the pressure regulator 244 is not limited to an APC valve as long as it can receive pressure information in the processing chamber 201 (a feedback signal from a pressure sensor 245 described later) and adjust the exhaust amount.
- the on-off valve and the pressure regulating valve may be used in combination.
- the exhaust port 221, the exhaust pipe 231, and the pressure regulator 244 constitute an exhaust part (also referred to as an exhaust system or an exhaust line).
- an exhaust port may be provided so as to surround the mounting table 210 so that the gas can be exhausted from the entire circumference of the wafer 200.
- the cap flange 104 is provided with a gas supply pipe 232 for supplying a processing gas for processing various substrates such as an inert gas, a raw material gas, and a reactive gas into the processing chamber 201.
- a mass flow controller (MFC) 241 that is a flow rate controller (flow rate control unit) and a valve 243 that is an on-off valve are provided in order from the upstream side.
- MFC mass flow controller
- N 2 nitrogen
- a gas in which an MFC that is a flow controller and a valve that is an on-off valve are provided downstream from the valve 243 of the gas supply pipe 232 in order from the upstream side A plurality of types of gases can be supplied by using a configuration in which a supply pipe is connected.
- a gas supply pipe provided with an MFC and a valve may be installed for each gas type.
- a gas supply system (gas supply unit) is mainly configured by the gas supply pipe 232, the MFC 241, and the valve 243.
- an inert gas flows through the gas supply system, it is also referred to as an inert gas supply system.
- the inert gas for example, a rare gas such as Ar gas, He gas, Ne gas, or Xe gas can be used in addition to N 2 gas.
- the cap flange 104 is provided with a temperature sensor 263 as a non-contact temperature measuring device.
- a temperature sensor 263 By adjusting the output of a microwave oscillator 655, which will be described later, based on the temperature information detected by the temperature sensor 263, the substrate is heated, and the substrate temperature has a desired temperature distribution.
- the temperature sensor 263 is configured by a radiation thermometer such as an IR (Infrared Radiation) sensor, for example.
- the temperature sensor 263 is installed so as to measure the surface temperature of the quartz plate 101 a or the surface temperature of the wafer 200. When the susceptor as the heating element described above is provided, the surface temperature of the susceptor may be measured.
- the wafer temperature converted by the temperature conversion data described later that is, the estimated wafer temperature, and the temperature sensor 263 are used.
- the temperature obtained by directly measuring the temperature of the wafer 200 is meant and a case where both are meant will be described.
- the converted data may be stored in the storage device 121c or the external storage device 123.
- the temperature of the wafer 200 can be estimated by measuring only the temperature of the quartz plate 101, and based on the estimated temperature of the wafer 200.
- the output of the microwave oscillator 655, that is, the heating device can be controlled.
- the means for measuring the temperature of the substrate is not limited to the radiation thermometer described above, and the temperature may be measured using a thermocouple, or the thermocouple and the non-contact thermometer are used in combination. May be.
- a thermocouple it is necessary to place the thermocouple near the wafer 200 and perform temperature measurement. That is, since it is necessary to arrange a thermocouple in the processing chamber 201, the thermocouple itself is heated by a microwave supplied from a microwave oscillator to be described later, so that the temperature cannot be measured accurately. Therefore, it is preferable to use a non-contact type thermometer as the temperature sensor 263.
- the temperature sensor 263 is not limited to being provided on the cap flange 104 but may be provided on the mounting table 210.
- the temperature sensor 263 is not only directly installed on the cap flange 104 or the mounting table 210 but also indirectly measured by reflecting the radiated light from the measurement window provided on the cap flange 104 or the mounting table 210 with a mirror or the like. It may be configured to.
- the number of temperature sensors 263 is not limited to one, and a plurality of temperature sensors may be installed.
- the electromagnetic wave introduction ports 653-1 and 653-2 are installed on the side wall of the case 102.
- One end of each of waveguides 654-1 and 654-2 for supplying electromagnetic waves into the processing chamber 201 is connected to each of the electromagnetic wave introduction ports 653-1 and 653-2.
- Connected to the other ends of the waveguides 654-1 and 654-2 are microwave oscillators (electromagnetic wave sources) 655-1 and 655-2 as heating sources for supplying and heating electromagnetic waves into the processing chamber 201, respectively.
- the microwave oscillators 655-1 and 655-2 supply electromagnetic waves such as microwaves to the waveguides 654-1 and 654-2, respectively.
- a magnetron, a klystron or the like is used for the microwave oscillators 655-1 and 655-2.
- the electromagnetic wave introduction ports 653-1 and 653-2, the waveguides 654-1 and 654-2, and the microwave oscillators 655-1 and 655-2 are not particularly required to be described separately.
- the electromagnetic wave introduction port 653, the waveguide 654, and the microwave oscillator 655 will be described.
- the frequency of the electromagnetic wave generated by the microwave oscillator 655 is preferably controlled to be in the frequency range of 13.56 MHz to 24.125 GHz. More preferably, the frequency is preferably controlled to be 2.45 GHz or 5.8 GHz.
- the frequencies of the microwave oscillators 655-1 and 655-2 may be the same frequency, or may be installed at different frequencies.
- the two microwave oscillators 655 are described as being disposed on the side surface of the case 102, but the present invention is not limited thereto, and one or more microwave oscillators may be provided. You may arrange
- An electromagnetic wave supply unit (electromagnetic wave supply apparatus, microwave) mainly as a heating device is mainly constituted by the microwave oscillators 655-1 and 655-2, the waveguides 654-1 and 654-2, and the electromagnetic wave introduction ports 653-1 and 653-2.
- a supply unit also referred to as a microwave supply device).
- a controller 121 described later is connected to each of the microwave oscillators 655-1 and 655-2.
- a temperature sensor 263 for measuring the temperature of the quartz plate 101 a or 101 b accommodated in the processing chamber 201 or the wafer 200 is connected to the controller 121.
- the temperature sensor 263 measures the temperature of the quartz plate 101 or the susceptor 103 or the wafer 200 by the method described above and transmits the temperature to the controller 121.
- the controller 121 controls the outputs of the microwave oscillators 655-1 and 655-2. The heating of the wafer 200 is controlled.
- a heating control method by the heating device a method of controlling the heating of the wafer 200 by controlling a voltage input to the microwave oscillator 655, a time when the power source of the microwave oscillator 655 is turned ON, and an OFF time are set.
- a method of controlling the heating of the wafer 200 by changing the time ratio can be used.
- the microwave oscillators 655-1 and 655-2 are controlled by the same control signal transmitted from the controller 121.
- the present invention is not limited to this, and the microwave oscillators 655-1 and 655-2 are individually controlled by transmitting individual control signals from the controller 121 to the microwave oscillators 655-1 and 655-2, respectively. May be.
- the controller 121 serving as a control unit includes a CPU (Central Processing Unit) 121a, a RAM (Random Access Memory) 121b, a storage device 121c, and an I / O port 121d. It is configured as a computer.
- the RAM 121b, the storage device 121c, and the I / O port 121d are configured to exchange data with the CPU 121a via the internal bus 121e.
- an input / output device 122 configured as a touch panel or the like is connected to the controller 121.
- the storage device 121c includes, for example, a flash memory, a HDD (Hard Disk Drive), and the like.
- a control program for controlling the operation of the substrate processing apparatus, a process recipe describing the annealing (modification) processing procedure and conditions, and the like are stored in a readable manner.
- the process recipe is a combination of the controller 121 that allows the controller 121 to execute each procedure in the substrate processing process described later and obtain a predetermined result, and functions as a program.
- the process recipe, the control program, and the like are collectively referred to simply as a program.
- the process recipe is also simply called a recipe.
- the RAM 121b is configured as a memory area (work area) in which programs, data, and the like read by the CPU 121a are temporarily stored.
- the I / O port 121d is connected to the above-described MFC 241, valve 243, pressure sensor 245, APC valve 244, vacuum pump 246, temperature sensor 263, drive mechanism 267, microwave oscillator 655, and the like.
- the CPU 121a is configured to read out and execute a control program from the storage device 121c and to read a recipe from the storage device 121c in response to an operation command input from the input / output device 122 or the like.
- the CPU 121a adjusts the flow rate of various gases by the MFC 241, the opening / closing operation of the valve 243, the pressure adjusting operation by the APC valve 244 based on the pressure sensor 245, the start and stop of the vacuum pump 246, and the temperature in accordance with the contents of the read recipe.
- the output adjustment operation of the microwave oscillator 655 based on the sensor 263, the rotation and rotation speed adjustment operation of the mounting table 210 (or the boat 217) by the drive mechanism 267, the raising / lowering operation, and the like are controlled.
- the controller 121 installs the above-described program stored in an external storage device (for example, a magnetic disk such as a hard disk, an optical disk such as a CD, a magneto-optical disk such as an MO, or a semiconductor memory such as a USB memory) 123 in a computer.
- an external storage device for example, a magnetic disk such as a hard disk, an optical disk such as a CD, a magneto-optical disk such as an MO, or a semiconductor memory such as a USB memory
- the storage device 121c and the external storage device 123 are configured as computer-readable recording media. Hereinafter, these are collectively referred to simply as a recording medium.
- recording medium When the term “recording medium” is used in this specification, it may include only the storage device 121c alone, may include only the external storage device 123 alone, or may include both of them.
- the program may be provided to the computer using a communication means such as the Internet or a dedicated line without using the external storage device 123.
- wafer when used in this specification, it may mean the wafer itself or a laminate of the wafer and a predetermined layer or film formed on the surface thereof.
- wafer surface when used in this specification, it may mean the surface of the wafer itself, or may mean the surface of a predetermined layer or the like formed on the wafer.
- the phrase “form a predetermined layer on the wafer” means that the predetermined layer is directly formed on the surface of the wafer itself, a layer formed on the wafer, etc. It may mean that a predetermined layer is formed on the substrate.
- substrate is also synonymous with the term “wafer”.
- the atmosphere in the processing chamber 201 is controlled so that the inside of the processing chamber 201 becomes a predetermined pressure (for example, 10 to 102000 Pa).
- a predetermined pressure for example, 10 to 102000 Pa.
- the valve opening of the pressure regulator 244 is feedback-controlled based on the pressure information detected by the pressure sensor 245 so that the inside of the processing chamber 201 is set to a predetermined pressure.
- the electromagnetic wave supply unit may be controlled as preliminary heating so as to perform heating to a predetermined temperature (S502).
- the temperature is raised to a predetermined substrate processing temperature by the electromagnetic wave supply unit, it is preferable to raise the temperature with an output smaller than the output of the reforming step described later so that the wafer 200 is not deformed or damaged.
- you may control so that it may transfer to inert gas supply process S403 mentioned later, after adjusting only the temperature in a furnace, without adjusting a furnace pressure.
- the driving mechanism 267 rotates the shaft 255 and rotates the wafer 200 via the boat 217 on the mounting table 210.
- an inert gas such as nitrogen gas is supplied through the gas supply pipe 232 (S503).
- the pressure in the processing chamber 201 is a predetermined value in the range of 10 Pa to 102000 Pa, and is adjusted to be, for example, 101300 Pa to 101650 Pa.
- the shaft may be rotated during the substrate loading step S401, that is, after the loading of the wafer 200 into the processing chamber 201 is completed.
- the microwave oscillator 655 supplies the microwave into the processing chamber 201 through the above-described units.
- the wafer 200 is heated to a temperature of 100 ° C. or higher and 1000 ° C. or lower, preferably 400 ° C. or higher and 900 ° C. or lower, more preferably And heating to a temperature of 500 ° C. or higher and 700 ° C. or lower.
- the substrate processing is performed at a temperature at which the wafer 200 efficiently absorbs microwaves, and the speed of the modification processing can be improved.
- the temperature of the wafer 200 is processed at a temperature lower than 100 ° C. or a temperature higher than 1000 ° C.
- the surface of the wafer 200 is altered and it becomes difficult to absorb microwaves. In this case, it becomes difficult to heat the wafer 200. For this reason, it is desired to perform substrate processing in the above-described temperature range.
- a standing wave is generated in the processing chamber 201, and locally on the wafer 200 (when the susceptor is mounted, the susceptor is the same as the wafer 200).
- a heated concentration region (hot spot) that is heated automatically and a non-heated region (non-heated region) other than that are generated, and the wafer 200 (when the susceptor is mounted, the susceptor is also the same as the wafer 200) is deformed.
- hot spots are suppressed from being generated on the wafer 200 by controlling the power supply of the electromagnetic wave supply unit to be turned on and off.
- the temperature sensor 263 is a non-contact temperature sensor, and is deformed or damaged on the wafer 200 to be measured (when the susceptor 103 is mounted, the susceptor 103 is also the same as the wafer 200). If this occurs, the position of the wafer 200 monitored by the temperature sensor and the measurement angle with respect to the wafer 200 change, so that the measurement value (monitor value) becomes inaccurate, and the measurement temperature changes abruptly.
- the sudden change in the measurement temperature of the radiation thermometer accompanying such deformation or breakage of the measurement object is used as a trigger for turning on / off the electromagnetic wave supply unit.
- the wafer 200 is heated to modify (crystallize) the amorphous silicon film formed on the surface of the wafer 200 into a polysilicon film (S504). That is, the wafer 200 can be uniformly modified.
- the microwave oscillator 655 is not turned OFF, but the wafer 200 is controlled by controlling the output of the microwave oscillator 655 to be low.
- the temperature may be within a predetermined range. In this case, when the temperature of the wafer 200 returns to a temperature within a predetermined range, the output of the microwave oscillator 655 is controlled to be increased.
- the wafer 200 is subjected to a modification process, and the process proceeds to the next substrate processing step.
- FIG. 6A the description of the ceiling plate (end plate) of the boat 217, the quartz plate 101, and the holding portion of the quartz plate 101 is omitted for simplification of description.
- the boat 217 is provided with boat columns (holding columns) 217a to 217c for holding the wafers 200.
- Wafers 217a to 217c are provided with wafers on the side surfaces on the wafer center side.
- Two wafer holding portions 217d are provided in the vertical direction.
- Two susceptor holding portions 217e for holding the susceptor 103 are provided on the side surface of the boat pillars 217a to 217c opposite to the wafer holding portion 217d.
- the susceptor holding part 217e arranged on the upper side in the vertical direction is configured to be positioned above the wafer holding part 217d arranged on the upper side in the vertical direction.
- the susceptor holding part 217e arranged on the lower side in the vertical direction is configured to be positioned on the lower side in the vertical direction than the wafer holding part 217d arranged on the lower side in the vertical direction.
- the susceptor 103 has a ring shape (ring shape), and a notch portion 105 is provided at a location corresponding to the susceptor holding portion 217e on the inner peripheral portion.
- a notch portion 105 is provided in this manner, for example, when the susceptor 103 is inserted from above and is held by the susceptor holding portion 217e positioned on the lower side, the upper susceptor holding portion 217e is passed at the position of the notch portion 105.
- the susceptor 103 is rotated to a predetermined position, thereby holding the susceptor 103 on the lower susceptor holding part 217e as shown in FIG.
- the notch 105 may not be provided in the susceptor 103 held by the upper susceptor holding part 217e. If the susceptor 103 is inserted and held from the lower side, it is necessary to provide the notch 105 in all of the held susceptors 103.
- the wafer 200 and the susceptor 103 are arranged at positions where they are not in contact (positions where they do not contact), respectively.
- the susceptor 103 is disposed so that the outer peripheral portion of the wafer 200 is positioned outside the outer peripheral portion (also referred to as an end portion, an edge portion, or a peripheral portion) of the wafer 200.
- the microwaves concentrate on the outer peripheral portion of the wafer 200, that is, the edge effect can be suppressed, and the outer peripheral portion of the wafer 200 is extremely modified as compared with other portions. Can be suppressed.
- a gap (gap) between the inner peripheral edge of the susceptor 103 and the outer peripheral edge of the wafer 200 has a length equal to or less than 1 ⁇ 2 wavelength of the wavelength of the microwave supplied into the processing chamber 201 in both the horizontal direction and the vertical direction. It is preferable to be installed in If the susceptor 103 and the wafer 200 are arranged so that the gap is larger than 1 ⁇ 2 wavelength, the antinode portion of the wave where the amplitude of the microwave is maximum is irradiated to the outer peripheral portion of the wafer 200 a plurality of times. As a result, the suppression of the edge effect is reduced.
- the ring width of the susceptor 103 is also a length equal to or less than 1 ⁇ 2 wavelength of the wavelength of the microwave supplied to the processing chamber 201 for the same reason as described above. It is preferable that Even if the edge effect occurs in the susceptor 103, the direct influence on the modification of the wafer 200 is small. However, when the susceptor 103 is overheated by the edge effect, the amount of heat generated by the susceptor 103 is larger than that required. A large amount of heat is generated, and as a result, the outer peripheral side of the wafer 200 is likely to be heated. Therefore, it is necessary to set a predetermined ring width.
- FIGS. 8 and 9 The results of performing the substrate processing shown in FIG. 5 with and without the susceptor 103 in this embodiment will be described with reference to FIGS. 8 and 9.
- the arrow described with the continuous line or the broken line in FIG. 8 has described typically a mode that microwaves were irradiated.
- FIG. 8A when the substrate processing flow shown in FIG. 5 is performed using only the wafer 200 without using the susceptor, microwaves concentrate on the outer periphery of the wafer 200 and overheating 800 due to the edge effect is performed. Will occur.
- FIGS. 9A and 9B the reforming proceeds only at the outer peripheral portion of the substrate, and the sheet resistance becomes extremely low only at the outer peripheral portion of the substrate.
- the ring-shaped susceptor 103 is placed at a position that is not in contact with the wafer 200, and the edge effect 800 is generated not on the wafer 200 but on the outer periphery of the susceptor 103.
- the edge effect generated in the wafer 200 can be suppressed.
- FIGS. 9C and 9D the entire wafer 200 is uniformly modified, and the sheet resistance is also obtained uniformly. If a simple plate-shaped susceptor that is not ring-shaped is used, as shown in FIGS. 9E and 9F, the antinodes and nodes of the microwave wavelength supplied into the processing chamber are used.
- the susceptor 103 to be used has an annular shape in which a region corresponding to the wafer 200 is cut out to improve in-plane processing uniformity. Further, if the susceptor 103 and the wafer 200 are arranged so as to contact each other, the heat generated in the susceptor 103 due to the edge effect is transferred to the wafer 200, and the heat transferred portion of the wafer 200 is moved to another position. Since it becomes easy to heat compared with it, it is necessary to make it non-contact. Further, in the present embodiment, the susceptor 103 is configured to have a ring shape having a circular outer periphery, but the outer periphery shape is not limited to this, and may be a polygonal shape or any shape.
- the substrate processing apparatus in the present embodiment is not limited to the above-described aspect, and can be changed as in the following modification.
- the height of the susceptor holding part 217e is configured to be equal to the height of the wafer holding part 217d, and the susceptor 103 includes a wafer.
- the escaper 130 of the tweezer 125a is formed so that the tweezer 125a can escape without contacting the susceptor 103 during the conveyance of 200.
- the gap between the outer peripheral portion of the wafer 200 and the inner peripheral portion of the susceptor 103 can be easily narrowed, and the edge effect generated in the wafer 200 can be further reduced.
- the vertical length of the boat 217 can be shortened, the height of the processing chamber 201, that is, the case 102 can be shortened, and an increase in the size of the apparatus structure can be suppressed. it can.
- the description of the ceiling plate (end plate) of the boat 217 and the holding portion of the quartz plate 101 is omitted for simplification of description.
- Modification 2 in this embodiment is a susceptor that holds a boat 217 that holds wafers 200 and a susceptor 103 that is formed of a material such as quartz that transmits microwaves.
- a susceptor boat 136 as a holder is configured separately, and a mechanism for moving the susceptor boat 136 up and down is provided.
- the susceptor boat 136 is connected to an attachment flange 134 attached to the upper surface of the susceptor boat 136, a shaft 133 that is connected to the attachment flange 134 and moves up and down the susceptor boat 136, and the shaft 133.
- a slider (susceptor boat elevator) 132 as an elevating mechanism for elevating and lowering the susceptor boat 136 and a motor 131 for driving the slider 132 are attached.
- the periphery of the shaft 133 disposed in the processing chamber is covered with an expandable / contractible bellows 135, and the processing chamber 201 and the transfer area 203 are kept airtight.
- a susceptor boat elevating mechanism (elevating device) is mainly configured by the motor 131, the slider 132, and the shaft 133.
- the mounting flange or 134 bellows 135 may be used as a susceptor boat lifting mechanism.
- the susceptor boat 136 is provided with susceptor boat columns 136a to 136c arranged at the same angle as the boat columns 217a to 217c, and the susceptor boat columns 136a to 136c are mounted on the wafer 200.
- a susceptor holding portion 136d is provided on the side surface on the installation side.
- the susceptor boat columns 136a to 136c are not necessarily arranged at the same angle as the boat columns 217a to 217c, but the boat columns 217a to 217c are considered in consideration of the influence of the microwave transmittance on the heating of the wafer 200. It is preferable to arrange so as to be located at the same angle.
- the susceptor boat 136 is moved up and down through the shaft 133 and the mounting flange 134 by the continuous operation of the motor 131 and the slider 132 with the susceptor 103 held by the susceptor holding portion 136d.
- The By this raising / lowering operation, the susceptor 103 held by the susceptor boat 136 at the time of substrate processing is disposed at substantially the same height position as the wafer 200. Further, since it is possible to dispose the wafer 200 and the susceptor 103 in a non-contact manner, it is possible to reduce the edge effect generated at the outer peripheral portion of the wafer 200 as in the first modification described above. As shown in FIG.
- the susceptor 103 in the second modification, does not necessarily have the notch 105 and the escape part 130 as in the first modification, and the susceptor 103 is moved by the slider 132 when the susceptor 103 is placed. What is necessary is just to move so that the height position of the susceptor holding part 136d of the boat 136 may be located above the upper surface of the boat 217.
- the susceptor 103 is held on the radially outer side of the boat columns 217a to 217c (the wafer 200 and the susceptor 103 are held with the boat columns 217a to 217c interposed therebetween).
- the present invention is not limited to this, and a susceptor holding portion 217e is provided inside the boat pillars 217a to 217c in the radial direction so that the wafer 200 and the susceptor 103 are arranged inside the boat pillars 217a to 217c. May be.
- the wafer 200 and the susceptor 103 are mounted in the same direction of the boat columns 217a to 217c, the wafer 200 and the susceptor 103 are held by the same holding member without providing the susceptor holding portion 217e. Also good.
- the present invention is not limited to this, and one wafer 200 may be placed on the boat 217 for processing, or a wafer 200 and a dummy wafer (not shown) may be placed on the boat 217 for processing.
- the heat capacity in the processing chamber can be brought close to the heat capacity in the processing chamber when two wafers 200 are mounted and processed, and one wafer 200 is mounted and processed. Even in this case, the same processing result can be obtained.
- the process of modifying an amorphous silicon film into a polysilicon film as a film containing silicon as a main component has been described.
- the present invention is not limited to this, and oxygen (O), nitrogen (N)
- a film formed on the surface of the wafer 200 may be modified by supplying a gas containing at least one of carbon (C) and hydrogen (H).
- C carbon
- H hydrogen
- hafnium oxide film HfxOy film
- the deficient oxygen can be replenished to improve the characteristics of the high dielectric film.
- the present invention is not limited to this, but aluminum (Al), titanium (Ti), zirconium (Zr), tantalum (Ta), niobium (Nb), lanthanum (La), cerium ( An oxide film containing a metal element containing at least one of Ce), yttrium (Y), barium (Ba), strontium (Sr), calcium (Ca), lead (Pb), molybdenum (Mo), tungsten (W), etc.
- the present invention can be suitably applied to the case of modifying a metal oxide film.
- the film formation sequence described above is performed on the wafer 200 on the TiOCN film, the TiOC film, the TiON film, the TiO film, the ZrOCN film, the ZrOC film, the ZrON film, the ZrO film, the HfOCN film, the HfOC film, the HfON film, the HfO film, TaOCN film, TaOC film, TaON film, TaO film, NbOCN film, NbOC film, NbON film, NbO film, AlOCN film, AlOC film, AlON film, AlO film, MoOCN film, MoOC film, MoON film, MoO film, WOCN film
- the present invention can be suitably applied to the case of modifying the WOC film, the WON film, and the WO film.
- a film mainly composed of silicon doped with impurities may be heated.
- a film mainly composed of silicon a silicon nitride film (SiN film), a silicon oxide film (SiO film), a silicon oxycarbide film (SiOC film), a silicon oxycarbonitride film (SiOCN film), a silicon oxynitride film (SiON)
- the impurity include at least one of bromine (B), carbon (C), nitrogen (N), aluminum (Al), phosphorus (P), gallium (Ga), arsenic (As), and the like.
- it may be a resist film based on at least one of methyl methacrylate resin (PMMA), epoxy resin, novolac resin, polyvinyl phenyl resin, and the like.
- PMMA methyl methacrylate resin
- epoxy resin epoxy resin
- novolac resin polyvinyl phenyl resin
- the present invention is not limited to this. Patterning process in the liquid crystal panel manufacturing process, patterning process in the solar cell manufacturing process, and patterning process in the power device manufacturing process.
- the present invention can also be applied to a technique for processing a substrate.
- susceptor (heating element) 200 Wafer (substrate), 201 ... processing chamber, 205 ... Gate valve, 217 ... Boat (substrate holder), 655: Microwave oscillator.
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Abstract
Description
マイクロ波によって基板保持具に保持された基板を加熱し、処理する基板処理装置に用いられる発熱体であって、
前記マイクロ波によって発熱する誘電体によって環状に形成され、前記基板の外周よりも外側に内周が位置するとともに前記基板と接触しない位置で前記基板保持具に保持される発熱体
を有する技術が提供される。
以下に本発明の一実施形態を図面に基づいて説明する。
本実施の形態において、本発明に係る基板処理装置100は、ウエハに各種の熱処理を施す枚葉式熱処理装置として構成されており、後述する電磁波を用いたアニール処理(改質処理)を行う装置として説明を行う。本実施形態における基板処理装置100では、基板としてのウエハ200を内部に収容した収納容器(キャリア)としてFOUP(Front Opening Unified Pod:以下、ポッドと称する)110が使用される。ポッド110は、ウエハ200を種々の基板処理装置間を搬送する為の搬送容器としても用いられる。
図1の破線で囲まれた領域Aには、図3に示すような基板処理構造を有する処理炉が構成される。図2に示すように、本実施形態においては処理炉が複数設けられているが、処理炉の構成は同一である為、一方の構成を説明するに留め、他方の処理炉構成の説明は省略する。
図3に示すように、処理炉は、金属などの電磁波を反射する材料で構成されるキャビティ(処理容器)としてのケース102を有している。また、ケース102の天井面には金属材料で構成されたキャップフランジ(閉塞板)104が、封止部材(シール部材)としてのOリング(図示せず)を介してケース102の天井面を閉塞するように構成する。主にケース102とキャップフランジ104の内側空間をシリコンウエハ等の基板を処理する処理室201として構成している。ケース102の内部に電磁波を透過させる石英製の図示しない反応管を設置してもよく、反応管内部が処理室となるように処理容器を構成してもよい。また、キャップフランジ104を設けずに、天井が閉塞したケース102を用いて処理室201を構成するようにしてもよい。
ここで、載置台210は基板搬入搬出口206の高さに応じて、駆動機構267によって、ウエハ200の搬送時にはウエハ200がウエハ搬送位置となるよう上昇または下降し、ウエハ200の処理時にはウエハ200が処理室201内の処理位置(ウエハ処理位置)まで上昇または下降するよう構成されていてもよい。
ここで、圧力調整器244は、処理室201内の圧力情報(後述する圧力センサ245からのフィードバック信号)を受信して排気量を調整することができるものであればAPCバルブに限らず、通常の開閉バルブと圧力調整弁を併用するように構成されていてもよい。
ガス供給管232には、上流から順に、流量制御器(流量制御部)であるマスフローコントローラ(MFC)241、および、開閉弁であるバルブ243が設けられている。ガス供給管232の上流側には、例えば不活性ガスである窒素(N2)ガス源が接続され、MFC241、バルブ243を介して処理室201内へ供給される。基板処理の際に複数種類のガスを使用する場合には、ガス供給管232のバルブ243よりも下流側に、上流側から順に流量制御器であるMFCおよび開閉弁であるバルブが設けられたガス供給管が接続された構成を用いることで複数種類のガスを供給することができる。ガス種毎にMFC、バルブが設けられたガス供給管を設置してもよい。
また、温度センサ263は、キャップフランジ104に設けることに限らず、載置台210に設けるようにしてもよい。また、温度センサ263は、キャップフランジ104や載置台210に直接設置するだけでなく、キャップフランジ104や載置台210に設けられた測定窓からの放射光を鏡等で反射させて間接的に測定するように構成されてもよい。さらに、温度センサ263は1つ設置することに限らず、複数設置するようにしてもよい。
また、本実施形態において、マイクロ波発振器655は、ケース102の側面に2つ配置されるように記載されているが、これに限らず、1つ以上設けられていればよく、また、ケース102の対向する側面等の異なる側面に設けられるように配置してもよい。主に、マイクロ波発振器655―1、655-2、導波管654-1、654-2および電磁波導入ポート653-1、653-2によって加熱装置としての電磁波供給部(電磁波供給装置、マイクロ波供給部、マイクロ波供給装置とも称する)が構成される。
図4に示すように、制御部(制御装置、制御手段)であるコントローラ121は、CPU(Central Processing Unit)121a、RAM(Random Access Memory)121b、記憶装置121c、I/Oポート121dを備えたコンピュータとして構成されている。RAM121b、記憶装置121c、I/Oポート121dは、内部バス121eを介して、CPU121aとデータ交換可能なように構成されている。コントローラ121には、例えばタッチパネル等として構成された入出力装置122が接続されている。
次に、上述の基板処理装置100の処理炉を用いて、半導体装置(デバイス)の製造工程の一工程として、例えば、基板上に形成されたシリコン含有膜としてのアモルファスシリコン膜の改質(結晶化)方法の一例について図5に示した処理フローに沿って説明する。以下の説明において、基板処理装置100を構成する各部の動作はコントローラ121により制御される。また、上述した処理炉構造と同様に本実施形態における基板処理工程においても、処理内容、すなわちレシピについては複数設けられた処理炉において同一レシピを使用する為、一方の処理炉を使用した基板処理工程について説明するに留め、他方の処理炉を用いた基板処理工程の説明は省略する。
図3に示されるように、ツィーザ125a-1、125a―2のいずれか一方、または両方に載置されたウエハ200はゲートバルブ205の開閉動作によって所定の処理室201に搬入(ローディング)される(S501)。
処理室201内へのウエハ200の搬入が完了したら、処理室201内が所定の圧力(例えば10~102000Pa)となるよう処理室201内の雰囲気を制御する。具体的には、真空ポンプ246により排気しつつ、圧力センサ245により検出された圧力情報に基づいて圧力調整器244の弁開度をフィードバック制御し、処理室201内を所定の圧力とする。また、同時に予備加熱として電磁波供給部を制御し、所定の温度まで加熱を行うように制御してもよい(S502)。電磁波供給部によって、所定の基板処理温度まで昇温させる場合、ウエハ200が変形・破損しないように、後述する改質工程の出力よりも小さな出力で昇温を行うことが好ましい。なお、大気圧下で基板処理を行う場合、炉内圧力調整を行わず、炉内の温度調整のみを行った後、後述する不活性ガス供給工程S403へ移行するように制御してもよい。
炉内圧力・温度調整工程S403によって処理室201内の圧力と温度を所定の値に制御すると、駆動機構267は、シャフト255を回転させ、載置台210上のボート217を介してウエハ200を回転させる。このとき、窒素ガス等の不活性ガスがガス供給管232を介して供給される(S503)。さらにこのとき、処理室201内の圧力は10Pa以上102000Pa以下の範囲となる所定の値であって、例えば101300Pa以上101650Pa以下となるように調整される。なお、シャフトは基板搬入工程S401時、すなわち、ウエハ200を処理室201内に搬入完了後に回転させてもよい。
処理室201内を所定の圧力となるように維持すると、マイクロ波発振器655は上述した各部を介して処理室201内にマイクロ波を供給する。処理室201内にマイクロ波が供給されることによって、ウエハ200が100℃以上、1000℃以下の温度、好適には400℃以上、900℃以下の温度となるように加熱し、さらに好適には、500℃以上、700℃以下の温度となるように加熱する。このような温度で基板処理することによって、ウエハ200が効率よくマイクロ波を吸収する温度下での基板処理となり、改質処理の速度向上が可能となる。換言すると、ウエハ200の温度を100℃よりも低い温度、または1000℃よりも高い温度下で処理してしまうと、ウエハ200の表面が変質してしまい、マイクロ波を吸収し難くなってしまうためにウエハ200を加熱し難くなってしまうこととなる。このため、上述した温度帯で基板処理を行うことが望まれる。
処理室201内の圧力を大気圧復帰させた後、ゲートバルブ205を開放し処理室201と搬送室203とを空間的に連通させる。その後、ボートに載置されているウエハ200を移載機125のツィーザ125aによって、搬送室203に搬出する(S505)。
次に図6、図7を用いて、サセプタ103の形状及びサセプタ103保持するボート217の保持構造の一例について説明する。図6(A)では説明の簡単化のため、上述したボート217の天井板(端板)や、石英プレート101、および、石英プレート101の保持部の記載を省略している。
図6(A)に示すように、ボート217には、ウエハ200を保持するためのボート柱(保持柱)217a~217cが設けられ、ボート柱217a~217cのウエハ中心側の側面それぞれに、ウエハを保持するウエハ保持部217dが垂直方向上下に2箇所設けられている。ボート柱217a~217cのウエハ保持部217dとは反対側の側面には、サセプタ103を保持するためのサセプタ保持部217eが2箇所設けられている。図7(B)に示すように、垂直方向上側に配置されたサセプタ保持部217eは、垂直方向上側に配置されたウエハ保持部217dよりも垂直方向において上側に位置するように構成されている。同様に、垂直方向下側に配置されたサセプタ保持部217eは、垂直方向下側に配置されたウエハ保持部217dよりも垂直方向において下側に位置するように構成される。
なお、サセプタ103の内周縁とウエハ200の外周縁との隙間(ギャップ)は、水平方向、垂直方向ともに処理室201内に供給されるマイクロ波の波長の1/2波長以下の長さとなるように設置されるのが好ましい。これらの隙間が1/2波長よりも大きくなるようにサセプタ103とウエハ200を配置してしまうと、マイクロ波の振幅が最大となる波の腹の部分がウエハ200の外周部に複数回照射されることとなってしまい、エッジ効果の抑制が低下してしまう。
また、サセプタ103のリング幅についても、上述しサセプタ103の内周とウエハ200の外周との隙間と同様の理由により、処理室201に供給されるマイクロ波の波長の1/2波長以下の長さとなることが好ましい。サセプタ103にエッジ効果が生じたとしても、そのことによってウエハ200の改質に直接の影響は小さいが、サセプタ103がエッジ効果によって過加熱された場合、サセプタ103に要求されている発熱量よりも大きな発熱が生じてしまい、結果、ウエハ200の外周側が加熱され易くなってしまうため、所定のリング幅となるように設定する必要がある。
図8(A)に示すように、サセプタを用いずにウエハ200のみで図5に示した基板処理フローを行った場合、ウエハ200の外周部にマイクロ波が集中し、エッジ効果による過加熱800が生じることとなる。これによって図9(A)および図9(B)に示すように基板の外周部のみ改質が進み、基板の外周部だけが極端にシート抵抗が低くなってしまう。これに対し、図8(B)に示すようにリング状のサセプタ103をウエハ200と非接触となる位置に載置させ、ウエハ200ではなく、サセプタ103の外周部にエッジ効果800が生じることとなり、ウエハ200に生じるエッジ効果を抑制することが可能となる。この場合、図9(C)および図9(D)に示すように、ウエハ200全体が均等に改質され、シート抵抗も均一に得られることとなる。
なお、仮に環形状ではない、単なる板形状のサセプタを用いた場合には、図9(E)および図9(F)に示すように、処理室内に供給されるマイクロ波の波長の腹と節の間隔で、サセプタ103が発熱する位置に発熱ムラが生じてしまい、その結果ウエハ200面上において、十分に改質される領域と改質されない領域が同心円状(縞状)に形成される改質結果となってしまうため、用いられるサセプタ103はウエハ200に対応する領域を切り欠いた環形状として、面内処理均一性を向上させることが好ましい。
また、仮にサセプタ103とウエハ200が接触するような配置とした場合、エッジ効果によってサセプタ103に生じた熱がウエハ200に伝熱されてしまい、ウエハ200の伝熱された箇所が他の位置に比べて加熱され易くなってしまうため、非接触とする必要がある。
また、本実施形態において、サセプタ103は円形の外周を有した環形状となるように構成して説明したが、外周形状はこれに限らず、多角形状でもよいし、どのような形状でもよい。
本実施形態によれば以下に示す1つまたは複数の効果が得られる。
図10、図11に示すように、本実施形態における変形例1は、サセプタ保持部217eの高さをウエハ保持部217dと同等の高さとなるように構成し、さらに、サセプタ103には、ウエハ200の搬送時にツィーザ125aがサセプタ103と接触することなく逃げることが可能なツィーザ125aの逃げ部130が形成されるように構成されている。このように構成することによって、ウエハ200とサセプタ103とを非接触となるように配置することが可能となるだけでなく、ウエハ200とサセプタ103の垂直方向の載置位置を略同一とすることが可能となり、ウエハ200の外周部とサセプタ103の内周部との隙間を狭くし易くなり、ウエハ200に生じるエッジ効果をより低減することが可能となる。また、ボート217の垂直方向の長さを短くすることが可能となるため、処理室201、すなわち、ケース102の高さを短くすることが可能となり、装置構造が大きくなることを抑制することができる。なお、図10(A)では説明の簡単化のため、上述したボート217の天井板(端板)や、石英プレート101の保持部の記載を省略している。
次に、図12、図13に示すように、本実施形態における変形例2は、ウエハ200を保持するボート217と、マイクロ波を透過する石英などの材質で形成されたサセプタ103を保持するサセプタ保持具としてのサセプタボート136とをそれぞれ別に構成させ、サセプタボート136を上下に昇降させる機構を備えている。
なお、図12(B)に示すように本変形例2においてサセプタ103には必ずしも変形例1のような切欠部105や逃げ部130は必要なく、サセプタ103の載置時に、スライダ132によって、サセプタボート136のサセプタ保持部136dの高さ位置が、ボート217の上面よりも上方に位置するように移動させればよい。
なお、ここでは、ハフニウム酸化膜について示したが、これに限らず、アルミニウム(Al)、チタニウム(Ti)、ジルコニウム(Zr)、タンタル(Ta)、ニオブ(Nb)、ランタン(La)、セリウム(Ce)、イットリウム(Y)、バリウム(Ba)、ストロンチウム(Sr)、カルシウム(Ca)、鉛(Pb)、モリブデン(Mo)、タングステン(W)等の少なくともいずれかを含む金属元素を含む酸化膜、すなわち、金属系酸化膜を改質する場合においても、好適に適用可能である。すなわち、上述の成膜シーケンスは、ウエハ200上に、TiOCN膜、TiOC膜、TiON膜、TiO膜、ZrOCN膜、ZrOC膜、ZrON膜、ZrO膜、HfOCN膜、HfOC膜、HfON膜、HfO膜、TaOCN膜、TaOC膜、TaON膜、TaO膜、NbOCN膜、NbOC膜、NbON膜、NbO膜、AlOCN膜、AlOC膜、AlON膜、AlO膜、MoOCN膜、MoOC膜、MoON膜、MoO膜、WOCN膜、WOC膜、WON膜、WO膜を改質する場合にも、好適に適用することが可能となる。
200・・・ウエハ(基板)、
201・・・処理室、
205・・・ゲートバルブ、
217・・・ボート(基板保持具)、
655・・・マイクロ波発振器。
Claims (11)
- マイクロ波によって基板保持具に保持された基板を加熱し、処理する基板処理装置に用いられる発熱体であって、
前記マイクロ波によって発熱する誘電体によって環状に形成され、前記基板の外周よりも外側に内周が位置するとともに前記基板と接触しない位置で前記基板保持具に保持される発熱体。 - 前記発熱体は、前記基板の載置位置と略同一の高さで前記基板保持具に保持される請求項1に記載の発熱体。
- 前記発熱体の幅は、前記マイクロ波の1/2波長以下の長さを有する請求項1または2に記載の発熱体。
- 前記発熱体の内周と前記基板外周との隙間が前記マイクロ波の1/2波長以下の長さとなるように前記基板保持具に保持される請求項1から3のいずれか1つに記載の発熱体。
- 前記発熱体の内周には前記基板保持具の発熱体保持部に対応する位置に設けられた切欠部を有する請求項1から4のいずれか1つに記載の発熱体。
- 前記発熱体は、前記基板保持具が有する保持柱の外側側面に設けられた発熱体保持部に保持される請求項1から5のいずれか1つに記載の発熱体。
- 基板を保持する基板保持具と、
前記基板保持具を収容し、前記基板を処理する処理室と、
前記基板をマイクロ波によって加熱する加熱装置と、
前記マイクロ波によって発熱する誘電体によって環状に形成され、前記基板の外周よりも外側に内周が位置するとともに前記基板と接触しない位置で前記基板保持具に保持される発熱体と、
を有する基板処理装置。 - 前記基板保持具は、少なくとも2つ以上の保持柱を有し、
前記保持柱は、内側側面に前記基板を保持する基板保持部を有し、外側側面に前記発熱体を保持する発熱体保持部を有する請求項7に記載の基板処理装置。 - 前記基板保持部と前記発熱体保持部は、略同一の高さとなるように設けられる請求項8に記載の基板処理装置。
- 基板を保持する基板保持具と、前記基板保持具を収容し、前記基板を処理する処理室と、前記基板をマイクロ波によって加熱する加熱装置と、前記マイクロ波によって発熱する誘電体によって環状に形成され、前記基板の外周よりも外側に内周が位置するとともに前記基板と接触しない位置で前記基板保持具に保持される発熱体と、を有する基板処理装置の前記処理室内へ前記基板を搬入する工程と、
前記マイクロ波を供給して前記基板と前記発熱体とを加熱し、前記基板を処理する工程と、
前記基板の処理後、前記基板を搬出する工程と、
を有する半導体装置の製造方法。 - 基板を保持する基板保持具と、
前記基板保持具を収容し、前記基板を処理する処理室と、
前記基板をマイクロ波によって加熱する加熱装置と、
前記マイクロ波によって発熱する誘電体によって環状に形成され、前記基板の外周よりも外側に内周が位置するとともに前記基板と接触しない位置で保持される発熱体と、
前記発熱体を保持し、前記発熱体が前記基板の保持位置と同じ高さに昇降可能な昇降機構を有する発熱体保持具と、
を有する基板処理装置。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01216522A (ja) * | 1988-02-25 | 1989-08-30 | Toshiba Corp | 半導体基板の熱処理方法及びそれに用いる熱処理装置 |
JP2009016540A (ja) * | 2007-07-04 | 2009-01-22 | Canon Inc | プラズマ処理装置およびプラズマ処理方法 |
JP2011204819A (ja) * | 2010-03-25 | 2011-10-13 | Hitachi Kokusai Electric Inc | 基板処理装置及び基板処理方法 |
WO2014038667A1 (ja) * | 2012-09-06 | 2014-03-13 | 株式会社日立国際電気 | 基板処理装置、半導体装置の製造方法及び記録媒体 |
JP2014090058A (ja) * | 2012-10-30 | 2014-05-15 | Tokyo Electron Ltd | マイクロ波加熱処理装置および処理方法 |
JP2016186991A (ja) * | 2015-03-27 | 2016-10-27 | 株式会社日立国際電気 | 基板処理装置、半導体装置の製造方法およびプログラム |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9048270B2 (en) * | 2007-03-08 | 2015-06-02 | Joseph M. Wander | Apparatus and method for heating semiconductor wafers via microwaves |
JP2012199402A (ja) * | 2011-03-22 | 2012-10-18 | Hitachi Kokusai Electric Inc | 基板処理装置 |
CN104040691B (zh) * | 2011-12-27 | 2016-09-07 | 佳能安内华股份有限公司 | 基板热处理装置 |
JP2014175168A (ja) * | 2013-03-08 | 2014-09-22 | Tokyo Electron Ltd | プラズマ処理装置 |
JP6188145B2 (ja) | 2013-09-27 | 2017-08-30 | 株式会社日立国際電気 | 基板処理装置、半導体装置の製造方法及びプログラム |
-
2017
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2019
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01216522A (ja) * | 1988-02-25 | 1989-08-30 | Toshiba Corp | 半導体基板の熱処理方法及びそれに用いる熱処理装置 |
JP2009016540A (ja) * | 2007-07-04 | 2009-01-22 | Canon Inc | プラズマ処理装置およびプラズマ処理方法 |
JP2011204819A (ja) * | 2010-03-25 | 2011-10-13 | Hitachi Kokusai Electric Inc | 基板処理装置及び基板処理方法 |
WO2014038667A1 (ja) * | 2012-09-06 | 2014-03-13 | 株式会社日立国際電気 | 基板処理装置、半導体装置の製造方法及び記録媒体 |
JP2014090058A (ja) * | 2012-10-30 | 2014-05-15 | Tokyo Electron Ltd | マイクロ波加熱処理装置および処理方法 |
JP2016186991A (ja) * | 2015-03-27 | 2016-10-27 | 株式会社日立国際電気 | 基板処理装置、半導体装置の製造方法およびプログラム |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021019143A (ja) * | 2019-07-23 | 2021-02-15 | 株式会社Kokusai Electric | 基板処理装置、半導体装置の製造方法およびプログラム |
US20220093435A1 (en) * | 2020-09-18 | 2022-03-24 | Kokusai Electric Corporation | Substrate processing apparatus, substrate retainer and method of manufacturing semiconductor device |
JP2022051437A (ja) * | 2020-09-18 | 2022-03-31 | 株式会社Kokusai Electric | 基板処理装置、基板保持具、及び、半導体装置の製造方法 |
JP7361005B2 (ja) | 2020-09-18 | 2023-10-13 | 株式会社Kokusai Electric | 基板処理装置、基板保持具、半導体装置の製造方法、及び、プログラム |
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