WO2025009125A1 - 気化器、処理装置および処理方法並びに半導体装置の製造方法 - Google Patents
気化器、処理装置および処理方法並びに半導体装置の製造方法 Download PDFInfo
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- WO2025009125A1 WO2025009125A1 PCT/JP2023/025016 JP2023025016W WO2025009125A1 WO 2025009125 A1 WO2025009125 A1 WO 2025009125A1 JP 2023025016 W JP2023025016 W JP 2023025016W WO 2025009125 A1 WO2025009125 A1 WO 2025009125A1
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- raw material
- temperature
- vaporizer
- temperature sensors
- temperature sensor
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/448—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
- C23C16/4481—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials by evaporation using carrier gas in contact with the source material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/448—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/448—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
- C23C16/4485—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials by evaporation without using carrier gas in contact with the source material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/52—Controlling or regulating the coating process
Definitions
- the present disclosure relates to a vaporizer, a processing device and processing method, and a method for manufacturing a semiconductor device.
- Patent Document 1 discloses a method for steadily supplying processing gas by switching between multiple containers
- Patent Document 2 discloses a method for measuring the remaining amount of raw material using a liquid level sensor.
- This disclosure provides a technology that estimates the remaining amount of ingredients based on the temperature detected by a temperature sensor.
- a main body that stores liquid ingredients at room temperature A plurality of temperature sensors provided on a side wall of the body; a collecting section formed on a side wall on which a temperature sensor located at a lower end of the plurality of temperature sensors is provided so as to collect the raw material;
- the present invention provides a technique having the following features:
- the remaining amount of raw material can be estimated based on the temperature detected by the temperature sensor.
- FIG. 1 is a schematic diagram of a processing apparatus suitably used in one embodiment of the present disclosure.
- 2 is a cross-sectional view taken along line AA in FIG. 1.
- FIG. 3 is an explanatory diagram illustrating a configuration of a vaporization system that is preferably used in one embodiment of the present disclosure.
- FIG. 4 is a vertical cross-sectional view of a storage tank suitably used in one embodiment of the present disclosure.
- FIG. 5 is a schematic configuration diagram of a controller 41 of a processing apparatus preferably used in one embodiment of the present disclosure, and is a block diagram showing a control system of the controller 41.
- FIG. 6 is a diagram showing a display unit that displays a transition of temperatures measured by a plurality of temperature sensors in one embodiment of the present disclosure.
- FIG. 7 is a cross-sectional view of a reservoir tank according to one embodiment of the present disclosure.
- FIG. 8 is a vertical cross-sectional view of a storage tank according to the first modification of the present disclosure.
- FIG. 9 is a vertical cross-sectional view of a storage tank in the second modification of the present disclosure.
- Fig. 10(a) is a vertical cross-sectional view of a storage tank according to Modification 3 of the present disclosure.
- Fig. 10(b) is a horizontal cross-sectional view of a storage tank according to Modification 3 of the present disclosure.
- FIG. 11 is a vertical cross-sectional view of a storage tank in the fourth modification of the present disclosure.
- Fig. 12(a) is a vertical cross-sectional view of a storage tank according to Modification 5 of the present disclosure.
- Fig. 12(b) is a horizontal cross-sectional view of a storage tank according to Modification 5 of the present disclosure.
- a reaction tube 1 is provided inside a heater 42 which is a heating device.
- a manifold 44 made of, for example, stainless steel is connected to the lower end of the reaction tube 1 via an O-ring 46 which is an airtight member.
- the lower end opening (furnace opening) of the manifold 44 is airtightly closed by a seal cap 35 which is a lid body via an O-ring 18 which is an airtight member.
- At least the reaction tube 1, the manifold 44 and the seal cap 35 define a processing chamber 2 as a processing space.
- the boat 32 is attached to the seal cap 35 as a holder via a boat support stand 45, which serves as a holder for the boat 32.
- Two gas supply pipes (gas supply pipe 47, gas supply pipe 48) are provided as supply paths to supply multiple types of processing gas (here, two types) to the processing chamber 2.
- a liquid raw material unit 71 as a liquid supply section, a storage section 51, a mass flow controller (hereinafter also referred to as MFC) 49 as a liquid flow control device (flow control means), and a valve 52 as an on-off valve are provided.
- MFC mass flow controller
- a purge gas supply pipe 53 that supplies an inert gas as a purge gas is joined downstream of the valve 52.
- a purge gas source 72 from upstream, an MFC 54 as a flow control device (flow control means), and a valve 55 as an on-off valve are provided.
- a nozzle 56 is provided at the tip of the gas supply pipe 47, running from the bottom to the top along the inner wall of the reaction tube 1, and gas supply holes 57 for supplying gas are provided on the side of the nozzle 56.
- the gas supply holes 57 are provided at equal intervals from the bottom to the top, and each has the same opening area.
- the vaporizer 60 of this embodiment has an MFC 49, a storage section 51 including a storage tank (storage container) 200 for storing the liquid raw material as described below, and a heater 215 for heating the liquid raw material.
- a storage tank (storage container) 200 for storing the liquid raw material as described below
- a heater 215 for heating the liquid raw material.
- supply pipe 47a the part of the gas supply pipe 47 that is upstream of the storage tank 200 and is provided between the liquid raw material supply unit 71
- supply pipe 47b the part of the gas supply pipe 47 downstream of the storage tank 200.
- the gas supply pipe 47, MFC 49, reservoir 51, valve 52, and nozzle 56 are collectively referred to as the first gas supply section (first gas supply line).
- the purge gas supply pipe 53, MFC 54, and valve 55 may also be included in the first gas supply section.
- the liquid source unit 71 and purge gas source 72 may also be included in the first gas supply section. This first gas supply line will be described later.
- a reaction gas source 73 In the gas supply pipe 48, from the upstream direction, a reaction gas source 73, an MFC 58 which is a flow control device (flow control means), and a valve 59 which is an on-off valve are provided, and a purge gas supply pipe 61 which supplies purge gas is joined to the downstream side of the valve 59.
- a purge gas supply pipe 61 In the purge gas supply pipe 61, from the upstream direction, a purge gas source 74, an MFC 62 which is a flow control device (flow control means), and a valve 63 which is an on-off valve are provided.
- a nozzle 64 At the tip of the gas supply pipe 48, a nozzle 64 is provided parallel to the nozzle 56, and on the side of the nozzle 64, a gas supply hole 65 which is a supply hole for supplying gas is provided.
- the gas supply holes 65 are provided at equal intervals from the bottom to the top, and each has the same opening area.
- the gas supply pipe 48, the MFC 58, the valve 59, and the nozzle 64 are collectively referred to as a second gas supply line as a second gas supply section.
- the purge gas supply pipe 61, the MFC 62, and the valve 63 may also be included in the second gas supply section.
- the reaction gas source 73 and the purge gas source 74 may also be included in the second gas supply section.
- the liquid raw material supplied from the liquid raw material unit 71 passes through the MFC 49, the storage section 51, and the valve 52, merges with the purge gas supply pipe 53, and is further supplied to the processing chamber 2 via the nozzle 56. Note that when supplied to the processing chamber 2, the raw material vaporized by the vaporizer 60 is supplied.
- the reaction gas supplied from the reaction gas source 73 passes through the MFC 58 and the valve 59, merges with the purge gas supply pipe 61, and is further supplied to the processing chamber 2 via the nozzle 64.
- the processing chamber 2 is connected to a vacuum pump 68, which is an exhaust device (exhaust means), via a gas exhaust pipe 66 that exhausts gas, and is configured to be evacuated to a vacuum.
- a valve 67 which serves as an adjustment valve, can open and close to evacuate and stop the vacuum evacuation of the processing chamber 2, and the valve 67 is further configured to adjust the pressure in the processing chamber 2 by adjusting the opening of the valve.
- the seal cap 35 is provided with a boat rotation mechanism 69 that rotates the boat 32 to improve processing uniformity.
- the vaporizer 60 includes a storage tank 200 as a storage container for storing liquid raw material (liquid raw material), an air valve 207, a pressure sensor P for detecting the pressure inside the storage tank 200, a heater 215 provided on the outside of the side wall 201, a collection section 218 formed to collect the liquid raw material 216 on the side wall 201 side where the temperature sensor TC4 located at the lower end in the vertical direction out of multiple temperature sensors TC (general term for temperature sensors TC1, TC2, TC3, TC4) is provided even if the remaining amount of liquid raw material 216 in the storage tank 200 becomes low, a storage section 51 including an opening 219 provided on the bottom wall 202 as a supply port for replenishing the liquid raw material, a heater 217 provided on the outside of the bottom wall 202 as a preheating section, and an MFC 49.
- the vaporizer 60 further includes a display section 300 (see FIG. 6). Details of the display section 300 will be described later. In this specification, the liquid raw material stored in the storage tank 200
- the liquid raw material 216 is heated and vaporized by the heater 215.
- the vaporized raw material then passes through the air valve 207, MFC 49, vaporizer 60, and valve 52, merges with the purge gas supply pipe 53, and is supplied to the processing chamber 2 via the valve V1 and nozzle 56.
- the storage tank 200 is configured to be able to estimate the remaining amount of liquid raw material 216 based on the temperature detected by multiple temperature sensors TC1 to TC4 installed on the side wall 201. When the remaining amount of liquid raw material 216 becomes low, the liquid raw material is replenished into the storage tank 200 from the liquid raw material unit 71 via the supply pipe 47a and opening 219.
- the amount of vaporized gas generated by vaporizing the liquid raw material 216 in the storage tank 200 varies depending on the remaining amount of liquid raw material 216. For example, when the remaining amount of liquid raw material 216 is low, the heat transfer area from the heater 215 is reduced, and the amount of vaporized gas generated also decreases. When this happens, the MFC 49 cannot adjust the flow rate to a flow rate that exceeds the amount of vaporized gas generated, making it difficult to supply a predetermined amount of vaporized gas into the processing chamber 2.
- the remaining amount of liquid raw material 216 can be estimated by utilizing the temperature change detected by the temperature sensors TC1 to TC4, making it possible to replenish the liquid raw material when the liquid raw material 216 becomes low to a certain extent. The estimation of the remaining amount of liquid raw material 216 will be described later.
- the collection section 218 is structured so that when the remaining amount of liquid raw material 216 becomes low, the liquid raw material 216 flows toward an opening 219 provided between the bottom wall 202 of the storage tank 200 and the supply pipe 47a.
- This structure makes it possible to reduce the influence of heating by the heater 215 when introducing (replenishing) the liquid raw material into the storage tank 200 from the opening 219. This makes it possible to prevent the liquid raw material from vaporizing before being introduced into the storage tank 200. This makes it possible to introduce (replenish) a predetermined flow rate of liquid raw material from the liquid raw material unit 71 into the storage tank 200.
- the heater 215 is provided to surround or cover the side wall 201 and is configured to be able to heat the liquid raw material 216. If the vaporized raw material is re-liquefied, it can cause problems such as the generation of particles, so to prevent this, the heating temperature of the heater 215 is set to a temperature slightly higher than the vaporization temperature of the liquid raw material 216. This can increase the effect of preventing the liquid raw material 216 introduced into the storage tank 200 from being re-liquefied.
- the heater 217 is provided to cover the outer periphery of the supply pipe 47a, and is configured to heat the liquid raw material introduced into the storage tank 200.
- the heating temperature of the heater 217 is set to a temperature slightly lower than the vaporization temperature of the liquid raw material. This allows the liquid raw material to be supplied in a liquid state to the storage tank 200 while being brought to a state closer to the vaporization temperature, thereby improving the vaporization efficiency of the liquid raw material 216.
- the pressure sensor P is used to check the vacuum when removing remaining liquid raw material from the supply pipe 47, etc., which will be described later, or to check the vaporization behavior during troubleshooting.
- air valve 207 When air valve 207 is closed, vaporized raw material remains between air valve 207 and valve 52. The flow of the remaining raw material stops, causing it to re-liquefy. To prevent this re-liquefaction, air valve AV1 is opened and an inert gas is purged through the piping between air valve 207 and MFC49 and the inside of MFC49 to purge the remaining raw material (raw material gas). For example, the effect of preventing re-liquefaction of the raw material gas can be improved by heating this purge gas to above its vaporization temperature using a heater (not shown). Whether or not purging is occurring can be confirmed by checking the detection value of pressure sensor P.
- raw material is supplied from liquid raw material unit 71 through supply pipe 47a to storage section 51.
- vaporized raw material is supplied through supply pipe 47b to processing chamber 2 and storage section 51.
- the vaporized raw material in supply pipe 47b is supplied to processing chamber 2 when air valve V1 is opened and air valves V2 and V3 are closed, and is supplied to gas exhaust pipe 66 when air valve V1 is closed and air valves V2 and V3 are opened.
- the vaporized raw material remains in the supply pipe 47b as residue and adheres to and accumulates on the inner wall of the supply pipe 47b, it will become particles.
- the vaporized raw material is exhausted from the supply pipe 47b by the vacuum pump 68 so that the vaporized raw material does not remain as residue.
- valves 52, 55, and air valve V1 are closed, and air valves V2 and V3 are opened, and the vaporized raw material in supply pipe 47b is evacuated by vacuum pump 68.
- valve 55 is opened to supply a purge gas (e.g., an inert gas) from purge gas source 72
- purge gas e.g., an inert gas
- air valve V1 may be closed, and air valves V2 and V3 may be opened to evacuate the vaporized raw material in supply pipe 47b by vacuum pump 68.
- Hand valves H1 and H2 are provided to facilitate replacement of liquid raw material unit 71. First, hand valve H1 and air valve V2 are closed, and hand valve H2 and air valve V3 are opened to remove the raw material from the piping using vacuum pump 68. Once the raw material from the piping has been removed, hand valve H2 is closed, the piping is disconnected from the first gas supply line shown in FIG. 3, and the liquid raw material unit 71 is replaced.
- FIG. 3 shows a controller 41 as a control unit.
- the controller 41 is configured to be able to determine the remaining amount of liquid raw material 216 according to the change in temperature measured by the temperature sensor TC.
- the controller 41 is configured to be able to determine the remaining amount of liquid raw material 216 in response to changes in temperature measured by the temperature sensor TC. If the controller 41 determines that the remaining amount of liquid raw material 216 is large as a result of the remaining amount determination, it continues to have the temperature measured by the temperature sensor TC. Furthermore, if the controller 41 determines that the remaining amount of liquid raw material 216 is low, it can manage the liquid raw material by notifying the user of the low remaining amount by issuing an alarm or by having the liquid raw material 216 replenished from the liquid raw material unit 71 to the storage tank 200. Details of the determination of the remaining amount of liquid raw material 216 by the temperature sensor TC will be described later.
- FIG. 4 is a vertical cross-sectional view of the storage tank 200.
- the heater 215 and the pressure sensor P are omitted.
- the vertical cross-sectional view of the storage tank 200 refers to a cross-sectional view of the storage tank 200 cut along the vertical direction
- the horizontal cross-sectional view of the storage tank 200 refers to a cross-sectional view of the storage tank 200 cut along the horizontal direction.
- the upper side means the vertical upper side
- the lower side means the vertical lower side.
- the higher position means the vertical upper position
- the lower position means the vertical lower position.
- the storage tank 200 is used as a container for storing liquid raw materials.
- the storage tank 200 has a main body (container) 221 as a main body constituting the storage chamber 210 in which the liquid raw materials are stored, a plurality of temperature sensors TC provided on the side wall 201, a collection section 218 formed to collect the liquid raw materials 216 on the side wall 201 side on which the temperature sensor TC4, which is located at the lower end (lowest side) of the plurality of temperature sensors TC, is provided, an opening 219 provided on the bottom wall 202 for replenishing the liquid raw materials, and a lid section 203 provided with a flow path (supply pipe 47b) for discharging the raw materials vaporized in the storage chamber 210.
- the side wall 201, bottom wall 202, and lid wall 203 each constitute the main body 221 including the inner wall of the storage chamber 210.
- the remaining amount of liquid source 216 can be estimated based on the temperature detected (measured) by temperature sensor TC. In particular, even if the amount of liquid source 216 is low, the temperature of liquid source 216 can be detected by temperature sensor TC4, and the remaining amount of liquid source 216 can be estimated.
- multiple temperature sensors TC are arranged in a row in the height direction (vertical direction) of the side wall 201 inside the side wall 201.
- temperature sensor TC1 is arranged at the topmost side (upper end) of the side wall 201 in the vertical direction
- temperature sensors TC2 and TC3 are arranged below that in that order
- temperature sensor TC4 is arranged at the bottommost side (lower end).
- the multiple temperature sensors TC are arranged so as to be evenly divided in the height direction of the side wall 201.
- the long dashed two-dot line on the graph indicates the change in temperature measured by the temperature sensor TC4, and are shown in yellow (solid line) on the display unit 300, for example.
- the display unit 300 can display the temperature transition (temperature change) measured by multiple temperature sensors TC arranged at different positions, each in a different color.
- the collection section 218 is configured with an inclined surface (surface) having a predetermined inclination angle with respect to the horizontal plane so that when the remaining amount of liquid raw material 216 becomes low, the remaining liquid raw material 216 flows toward an opening 219 provided in a position close to the temperature sensor TC4.
- the uppermost side (top end) of the surface of the collection section 218 is configured to be located at a position above the position where the temperature sensor TC4 is arranged.
- the surface of the collection section 218 (the surface in contact with the liquid raw material 216) is configured to be shown as a single straight line, and the collection section 218 is shown as a triangle.
- Figure 7 is a cross-sectional view of the storage tank 200.
- the position of the straight line indicated by the dotted line is the lowest (bottom end) position of the surface (inclined surface) of the collection section 218.
- the circle indicated by the dotted line is the opening 219.
- the cross-sectional shape of the opening 219 may be other than a circle, and may be, for example, an ellipse, a polygon, a star, a diamond, or a trapezoid.
- the cross-sectional shape of the storage tank 200 may be other than a rectangle, and may be, for example, a circle, an ellipse, a triangle, a polygon with pentagons or more, a star, a diamond, or a trapezoid.
- the temperature sensor TC is placed near the opening 219. This allows the liquid source 216 to be replenished even if the remaining amount of the liquid source 216 is low, based on the remaining amount management by the temperature sensor TC detecting the temperature of the liquid source 216, thereby enabling effective use of the liquid source. Note that it is sufficient that the temperature sensor TC4, which is placed at the very bottom (lowest end) of the multiple temperature sensors TC, is placed near the opening 219, and it is not necessary for all the multiple temperature sensors TC to be placed in the same place in cross section as shown in FIG. 7.
- the vaporization system in this embodiment has at least a storage tank 200 equipped with a main body 221 that stores liquid raw material at room temperature, multiple temperature sensors TC provided on the side wall 201 of the main body 221, and a collection section 218 formed to collect liquid raw material 216 on the side wall 201 side where the temperature sensor TC4 is provided, and a controller 41 configured to be able to estimate the remaining amount of liquid raw material 216 according to changes in temperature measured by the multiple temperature sensors TC.
- the controller 41 is configured to be able to replenish the liquid source from the liquid source unit 71 through the opening 219 based on an estimate of the remaining amount of the liquid source 216 according to changes in temperature measured by the multiple temperature sensors TC.
- the controller 41 is configured to check the remaining amount of liquid raw material 216 in response to changes in temperature measured by the temperature sensor TC4, and to determine whether the liquid raw material 216 is insufficient or needs to be replenished. When the liquid raw material 216 becomes so low that replenishment is required, the controller 41 is configured to replenish the liquid raw material from the liquid raw material unit 71 via the supply pipe 47a and the opening 219.
- the controller 41 is also configured to stop the supply of liquid raw material from the liquid raw material unit 71 when the temperature measured by the temperature sensor TC1, which is located at the top (top end) of the multiple temperature sensors TC, reaches saturation.
- the controller 41 is configured to stop the supply of liquid raw material from the liquid raw material unit 71 when the surface (liquid level) position of the liquid raw material 216 reaches the vicinity of the position of the temperature sensor TC1.
- the controller 41 is configured to be able to supply liquid raw material through the opening 219 based on the temperature detected by a temperature sensor TC4 located near the opening 219 in the bottom wall 202 of the storage tank 200.
- the remaining amount of liquid source 216 is estimated based on the change in temperature detected by temperature sensor TC4, which is located at the bottom end of the multiple temperature sensors TC, but this is not a necessary configuration. For example, it is possible to replenish liquid source 216 when there is a change in the temperature detected by temperature sensor TC3, which is one of the multiple temperature sensors TC, that is, when the remaining amount of liquid source 216 has decreased to the height where temperature sensor TC4 is located.
- the storage device 41c is composed of, for example, a flash memory, a HDD (Hard Disk Drive), etc.
- a control program for controlling the operation of the processing device and a process recipe describing the procedures and conditions of the substrate processing described later are recorded and stored in a readable manner.
- the process recipe is a combination of procedures in the substrate processing step described later that are executed by the controller 41 to obtain a predetermined result, and functions as a program.
- the term program may include only the process recipe, only the control program, or both.
- the RAM 41b is configured as a memory area (work area) in which programs and data read by the CPU 41a are temporarily stored.
- I/O port 41d is connected to the boat elevator, heaters 42, 215, 217, MFCs 49, 54, 58, 62, valves 52, 55, 59, 63, 67, etc.
- the controller 41 adjusts the flow rate of the MFCs 49, 54, 58, and 62, opens and closes the valves 52, 55, 59, 63, and 67, adjusts the temperature of the heaters 42, 215, and 217, starts and stops the vacuum pump 68, adjusts the rotation speed of the boat rotation mechanism 69, and controls the raising and lowering operation of the boat elevator.
- the controller 41 may be configured as a general-purpose computer, not limited to a dedicated computer.
- the controller 41 according to this embodiment can be configured by preparing an external storage device (e.g., a semiconductor memory such as a USB memory or a memory card) 412 storing the above-mentioned program, and installing the program in a general-purpose computer using the external storage device 412.
- the means for supplying the program to the computer is not limited to supplying the program via the external storage device 412.
- the program may be supplied without going through the external storage device 412, using a communication means such as the Internet or a dedicated line.
- the storage device 41c and the external storage device 412 are configured as computer-readable recording media. Hereinafter, these are collectively referred to simply as recording media. In this specification, when the term recording medium is used, it may include only the storage device 41c alone, only the external storage device 412 alone, or both.
- a film is formed on the wafer 31 by performing a cycle of non-simultaneous processes a predetermined number of times (one or more), which include a process of supplying a raw material gas to the wafer 31 in the processing chamber 2 (step 1), a process of removing the raw material gas (residual gas) from the processing chamber 2 (step 2), a process of supplying a reactive gas to the wafer 31 in the processing chamber 2 (step 3), and a process of removing the reactive gas (residual gas) from the processing chamber 2 (step 4).
- Step 1 the raw material is flowed while the heater 42 and the heater 215 are operated. First, the valves 52 and 67 are opened. The raw material is supplied to the reservoir 51 through the supply pipe 47a. The raw material is stored in the reservoir 210 and heated and vaporized by the heater 215. The vaporized gaseous raw material (raw material gas) is supplied to the supply pipe 47b with a flow rate adjusted by the MFC 49. This raw material gas is supplied to the processing chamber 2 through the gas supply hole 57 of the nozzle 56 and exhausted through the gas exhaust pipe 66. At this time, the raw material gas is supplied to the wafer 31 from the side of the wafer 31. As a result, a first layer is formed on the wafer 31.
- Step 2 the valve 52 of the gas supply pipe 47 is closed to stop the supply of the source gas.
- the valve 67 of the gas exhaust pipe 66 is left open, and the remaining source gas is purged from the processing chamber 2 by the vacuum pump 68. If an inert gas, for example, N2 gas, is supplied to the processing furnace 29 as a purge gas at this time, the effect of purging the remaining source gas is further enhanced.
- an inert gas for example, N2 gas
- Step 3 the reactive gas valve 59 is opened to allow the reactive gas to flow into the gas supply pipe 48.
- the flow rate of the reactive gas is adjusted by the MFC 58, and the reactive gas is supplied to the processing chamber 2 through the gas supply hole 65 of the nozzle 64 and exhausted through the gas exhaust pipe 66.
- the reactive gas is supplied to the wafer 31 from the side of the wafer 31.
- the first layer on the wafer 31 reacts with the reactive gas and is modified, and a second layer formed by modifying the first layer is formed on the wafer 31.
- Step 4 In step 4, after the second layer is formed, the valves 59 and 63 are closed, and the processing chamber 2 is evacuated by the vacuum pump 68 to remove the remaining reaction gas. If an inert gas, for example, N2 gas, is supplied to the processing chamber 2 at this time as a purge gas, the effect of removing the remaining reaction gas from the processing chamber 2 is further enhanced.
- an inert gas for example, N2 gas
- the above steps 1 to 4 constitute one cycle, and by repeating this cycle multiple times, a film of a predetermined thickness can be formed on the wafer 31.
- the remaining amount of liquid raw material 216 can be estimated based on the temperature transition (temperature change) measured by multiple temperature sensors TC provided on the side wall 201 of the main body 221.
- the collection section 218 is configured such that, when the remaining amount of liquid source 216 becomes low, the remaining liquid source 216 flows toward an opening 219 provided at a position close to the temperature sensor TC4, which is located at the lowest (lowest end) of the multiple temperature sensors TC. As a result, even if the liquid source 216 becomes low, it is possible to detect the temperature of the liquid source 216, for example, by the temperature sensor TC4, and therefore it is possible to replenish the liquid source based on the remaining amount management of the liquid source 216. This allows for effective use of the liquid source.
- the uppermost end of the collection section 218 is configured to be positioned higher than the position of the temperature sensor TC4, which is positioned at the lower end of the multiple temperature sensors TC. More specifically, the uppermost end (uppermost side) of the inclined surface (surface) of the collection section 218 is configured to be positioned at a position above the position of the temperature sensor TC4. This allows the inclination of the surface of the collection section 218 (the surface in contact with the liquid source 216) to be steep. Therefore, even if the liquid source 216 is low, the liquid source 216 can be easily collected on the temperature sensor TC4 side, making it easy for the temperature sensor TC4 to detect the temperature of the liquid source 216, and the remaining amount of the liquid source 216 can be easily estimated. This makes it easy to manage the remaining amount of the liquid source 216.
- the surface of the collection section 218 (the surface that comes into contact with the liquid source 216) is configured to be shown by a single straight line.
- the controller 41 is configured to determine that the remaining amount of the liquid source 216 is insufficient when the temperature measured by the temperature sensor TC4 changes. This allows the controller 41 to manage the remaining amount of the liquid source 216 according to changes in temperature detected by the temperature sensor TC4 that is located at the lowest (bottom end) of the multiple temperature sensors TC, for example, a temperature rise when the liquid source 216 is vaporized.
- the controller 41 is configured to cause the liquid source unit 71 to replenish the liquid source through the opening 219. Specifically, the controller 41 is configured to be able to replenish the liquid source from the liquid source unit 71 through the opening 219 based on an estimate of the remaining amount of the liquid source 216 according to changes in temperature measured by the multiple temperature sensors TC. This allows the remaining amount of the liquid source 216 to be reliably managed.
- the controller 41 is configured to stop the supply of liquid raw material to the liquid raw material unit 71 when the temperature measured by the temperature sensor TC1 becomes saturated. Specifically, the controller 41 is configured to stop the supply of liquid raw material from the liquid raw material unit 71 when the surface (liquid level) position of the liquid raw material 216 approaches the position of the temperature sensor TC1, which is the uppermost (top) of the multiple temperature sensors TC. This keeps the liquid raw material 216 in the main body 221 within a predetermined amount, ensuring space for the liquid raw material 216 to change into a vaporized gas. In addition, when refilling the liquid raw material into the storage tank 200, an appropriate amount (a preset amount) of liquid raw material can be refilled.
- the controller 41 is configured to be able to replenish the liquid source material from the opening 219 based on the temperature detected by a temperature sensor TC4 disposed near the opening 219 provided in the bottom wall 202 of the storage tank 200. This allows the remaining amount of the liquid source material 216 to be managed according to changes in the temperature detected by the temperature sensor TC4, for example, the temperature rise when the liquid source material 216 is vaporized. Furthermore, the liquid source material can be replenished according to the remaining amount of the liquid source material 216.
- the display unit 300 displays the temperature changes measured by each of the multiple temperature sensors TC in different colors depending on the positions where the sensors are located, making it easy to grasp the remaining amount of liquid raw material 216.
- the storage tank 200 in this embodiment can be modified as shown in the following modifications. These modifications can be combined in any way. In the configuration of the storage tank described below, only elements different from the storage tank 200 shown in FIG. 4 will be described, and substantially the same elements will be given the same reference numerals and their description will be omitted. Note that the heater 217 is omitted in the modification described below. It goes without saying that the modification can be used in appropriate combination with the above embodiment.
- the processing procedure and processing conditions in this case can be, for example, the same as the processing procedure and processing conditions of the above embodiment and modification.
- the uppermost side (top end) of the surface of the collection section 218 may be located lower than the location of the temperature sensor TC4, which is located on the lowermost side (bottom end) of the multiple temperature sensors TC.
- the same effects as those of the above embodiment can be obtained.
- the liquid source can be replenished into the storage tank 200 when the temperature detected by the temperature sensor TC4 changes, that is, when the temperature detected by the temperature sensor TC4 becomes the vaporization temperature of the liquid source 216.
- the side wall 201 may be configured to have an uneven shape, and multiple temperature sensors TC may be installed in the protrusions protruding into the main body 221.
- This modification also provides the same effects as the above-mentioned embodiment. Furthermore, according to the configuration of this modification, even if the remaining amount of liquid source 216 is low, the temperature of the liquid source 216 can be easily detected by, for example, the temperature sensor TC4. This makes it easy to estimate the remaining amount of liquid source 216, and therefore makes it easy to manage the remaining amount of liquid source 216.
- the surface of the collection section 218 may be configured as shown by a plurality of straight lines (e.g., two straight lines) in a vertical cross-sectional view of the storage tank 200.
- the collection section 218 may be configured as a polygon having pentagons or more sides in a horizontal cross-sectional view of the storage tank 200. Note that the position of the straight line shown by the dotted line in Fig. 10(b) is the position of the lowermost side (lower end) of the surface (inclined surface) of the collection section 218. In this modified example, the same effect as that of the above-mentioned embodiment can be obtained.
- the collection section 218 may be configured to have at least one rod-shaped heater 250 provided therein.
- the heater 250 for example a cartridge heater, can be provided in a portion closer to the liquid source 216 for heating, so that the vaporization efficiency of the liquid source 216 can be further improved.
- the collecting section 218 may be configured so as not to be visible in the vertical cross-sectional view of the storage tank 200.
- the collecting section 218 may be formed in a cone shape so as to be inclined toward the opening 219.
- the same effect as in the above-mentioned embodiment can be obtained.
- the same effect as in the above-mentioned embodiment can be obtained by disposing the temperature sensor TC4 near the opening 219.
- the case where the top end of the collection unit 218 is arranged at a position higher than the arrangement position of the temperature sensor TC4 (see FIG. 4) and the case where it is arranged at a position lower than the bottom end of the temperature sensor TC4 (see FIG. 8) have been described as examples.
- the present disclosure is not limited to such an embodiment.
- the collection unit 218 may be configured to be arranged at a height facing the temperature sensor TC4.
- the collection unit 218 being arranged at a height facing the temperature sensor TC4 means, for example, that the temperature sensor TC4 is arranged between the top and bottom ends of the collection unit 218.
- the same effect as the above-mentioned embodiment can be obtained.
- the surface (inclined surface) of the collection section 218 is configured to be shown as a single straight line in the vertical cross-sectional view of the storage tank 200 (see FIG. 4) and is configured to be shown as multiple straight lines (see FIG. 10).
- the present disclosure is not limited to such embodiments.
- the surface of the collection section 218 may be configured to be shown as a combination of straight lines and curved lines, or may be configured as curved lines. In this embodiment as well, the same effects as those in the above-mentioned embodiment can be obtained.
- four temperature sensors TC1 to TC4 are used as the multiple temperature sensors.
- the present disclosure is not limited to such an embodiment.
- two temperature sensors, three temperature sensors, or five or more temperature sensors may be used as the multiple temperature sensors.
- the same effects as the above embodiment can be obtained.
- multiple temperature sensors are provided on the side wall 201 of the storage tank 200.
- the present disclosure is not limited to this embodiment.
- a new configuration for protecting the temperature sensor TC such as a protective tube, must be added, but at least one of the four temperature sensors TC1 to TC4 can be placed in the storage chamber 210. Even in this case, the temperature sensor TC can be brought into contact with the liquid raw material 216, making it possible to estimate the remaining amount of the liquid raw material 216.
- This embodiment also provides the same effects as the above embodiment.
- the recipes used for each process are preferably prepared individually according to the process content, and recorded and stored in the storage device 41c via an electric communication line or an external storage device 412. Then, when starting each process, the CPU 41a preferably selects an appropriate recipe according to the process content from among the multiple recipes recorded and stored in the storage device 41c. This makes it possible to reproducibly form films of various film types, composition ratios, film qualities, and film thicknesses using a single processing device. It also reduces the burden on the operator, making it possible to quickly start each process while avoiding operating errors.
- the above-mentioned recipes do not necessarily have to be created anew, but may be prepared, for example, by modifying an existing recipe that has already been installed in the processing device.
- the modified recipe may be installed in the processing device via a telecommunications line or a recording medium on which the recipe is recorded.
- an existing recipe that has already been installed in the processing device may be directly modified by operating the input/output device 122 provided in the existing processing device.
- the present embodiment describes a semiconductor manufacturing process
- the present disclosure is not limited to this.
- the present disclosure can also be applied to substrate processing such as liquid crystal device manufacturing processes, solar cell manufacturing processes, light emitting device manufacturing processes, glass substrate processing processes, ceramic substrate processing processes, and conductive substrate processing processes.
- an example of forming a film using a batch-type processing apparatus that processes multiple substrates at a time has been described.
- the present disclosure is not limited to the above-mentioned embodiment, and can be suitably applied, for example, to a case where a film is formed using a single-wafer processing apparatus that processes one or several substrates at a time.
- an example of forming a film using a processing apparatus having a hot-wall type processing furnace has been described.
- the present disclosure is not limited to the above-mentioned embodiment, and can be suitably applied to a case where a film is formed using a processing apparatus having a cold-wall type processing furnace.
- each process can be performed using the same processing procedures and conditions as the above-mentioned aspects and modifications, and the same effects as the above-mentioned aspects and modifications can be obtained.
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Abstract
Description
常温で液体の原料を収納する本体と、
前記本体の側壁に設けられる複数の温度センサと、
前記複数の温度センサのうち下端に配置される温度センサが設けられる側壁側に前記原料を集めるように形成されている収集部と、
を有する技術が提供される。
以下、本開示の一態様について、図1~図7を参照しつつ説明する。なお、以下の説明において用いられる図面は、いずれも模式的なものであり、図面に示される、各要素の寸法の関係、各要素の比率等は、現実のものとは必ずしも一致していない。また、複数の図面の相互間においても、各要素の寸法の関係、各要素の比率等は必ずしも一致していない。
加熱装置であるヒータ42の内側に反応管1が設けられ、反応管1の下端には、例えばステンレス等により構成されたマニホールド44が気密部材であるOリング46を介して連設され、マニホールド44の下端開口部(炉口部)は蓋体であるシールキャップ35により気密部材であるOリング18を介して気密に閉塞され、少なくとも、反応管1、マニホールド44及びシールキャップ35により、処理空間としての処理室2を画成している。
続いて、図4を用いて気化器60の一部である貯留部51の主要部である貯留タンク200について説明する。なお、図4は、貯留タンク200の縦断面図である。ここでは、ヒータ215や圧力センサPは省略している。なお、本明細書において、貯留タンク200の縦断面図とは、貯留タンク200を鉛直方向に沿って切断したときの断面図のことであり、貯留タンク200の横断面図とは、貯留タンク200を水平方向に沿って切断したときの断面図のことである。また、本明細書において、上側とは、鉛直上方側を意味し、下側とは、鉛直下方側を意味している。また、本明細書において、高い位置とは、鉛直上方側の位置を意味し、低い位置とは、鉛直下方側の位置を意味している。
コントローラ41の概略を図5に示す。制御部(制御手段)であるコントローラ41は、CPU(Central Processing Unit)41a、RAM(Random Access Memory)41b、記憶装置41c、I/Oポート41dを備えたコンピュータとして構成されている。RAM41b、記憶装置41c、I/Oポート41dは、内部バス41eを介して、CPU41a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41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411や、外部記憶装置412が接続可能に構成されている。更に、上位装置75にネットワークを介して接続される受信部413が設けられている。受信部413は、上位装置75から他の装置の情報を受信することが可能となっている。
次に、例えば基板(被処理体)としてのウエハ31を処理する例について説明する。ここでは、半導体デバイスの製造工程の一例として、ソース(原料)とリアクタント(反応ガス)を交互に処理室2に供給することで膜処理を行うサイクル処理を説明する。
ステップ1では、ヒータ42とヒータ215を稼働させた状態で、原料を流す。まずバルブ52、バルブ67を開ける。原料は供給管47aを介して貯留部51に供給される。原料は貯留室210に貯留されると共に、ヒータ215によって加熱されて気化される。気化されたガス状の原料(原料ガス)は、MFC49により流量調整されて供給管47bに供給される。この原料ガスをノズル56のガス供給孔57から処理室2に供給されて、ガス排気管66から排気される。このとき、原料ガスがウエハ31の側方よりウエハ31に対して供給される。これによりウエハ31上に第1層が形成される。
ステップ2では、ガス供給管47のバルブ52を閉めて、原料ガスの供給を止める。ガス排気管66のバルブ67は開いたままにし、真空ポンプ68により、残留原料ガスを処理室2から排除する。又、この時には不活性ガス、例えばパージガスとしてN2ガスを処理炉29に供給すると、更に残留原料ガスを排除する効果が高まる。
ステップ3では、反応ガスバルブ59を開き、ガス供給管48内に反応ガスを流す。反応ガスは、MFC58により流量調整されて、ノズル64のガス供給孔65から処理室2に供給され、ガス排気管66から排気される。このとき、反応ガスがウエハ31の側方よりウエハ31に対して供給される。これにより、ウエハ31上の第1層が反応ガスと反応して改質され、ウエハ31上に、第1層が改質されてなる第2層が形成される。
ステップ4では、第2層を形成後、バルブ59及びバルブ63を閉じ、真空ポンプ68により処理室2を真空排気し、残留する反応ガスを排除する。又、この時には不活性ガス、例えばパージガスとしてN2ガスを処理室2に供給すると、更に残留する反応ガスを処理室2から排除する効果が高まる。
本態様によれば、以下に示す1つ又は複数の効果が得られる。
本態様における貯留タンク200は、以下に示す変形例のように変形することができる。これらの変形例は、任意に組み合わせることができる。以下に説明する貯留タンクの構成において、図4に示す貯留タンク200と異なる要素についてのみ説明し、実質的に同一の要素には、同一の符号を付してその説明を省略する。尚、以下に示す変形例では、ヒータ217を省略している。また、変形例は、上述の態様と適宜組み合わせて用いることができるのは言うまでもない。このときの処理手順、処理条件は、例えば、上述の態様や変形例の処理手順、処理条件と同様とすることができる。
図8に示すように、収集部218の表面の最も上側(最上端)が、複数の温度センサTCのうち最も下側(下端)に配置される温度センサTC4の配置位置より低い位置に配置されていてもよい。本変形例においても、上述の態様と同様の効果が得られる。また、本変形例では、温度センサTC4により検出される温度が変化したタイミング、すなわち、温度センサTC4により検出される温度が液体原料216の気化温度となったタイミングで液体原料を貯留タンク200内に補充する運用とすることができる。
図9に示すように、側壁201が凹凸形状に構成され、本体部221の内部に突出した凸部内に、複数の温度センサTCがそれぞれ設置される構成としてもよい。本変形例においても、上述の態様と同様の効果が得られる。さらに、本変形例の構成によれば、液体原料216の残量が少なくなっても、例えば温度センサTC4による液体原料216の温度検知を容易に行うことができる。これにより、液体原料216の残量を推定することが容易となるので、液体原料216の残量管理も容易となる。
図10(a)に示すように、収集部218の表面(液体原料216の接液面)は、貯留タンク200の縦断面図において、複数の直線(例えば2つの直線)で示されるように構成されていてもよい。また、図10(b)に示すように、収集部218は、貯留タンク200の横断面図において、五角形以上の多角形で構成されていてもよい。なお、図10(b)において点線で示す直線の位置が、収集部218の表面(傾斜面)の最も下側(下端)の位置である。本変形例においても、上述の態様と同様の効果が得られる。
図11に示すように、収集部218は、その内部に少なくとも一つの棒状のヒータ250を設けるように構成されていてもよい。本変形例においても、上述の態様と同様の効果が得られる。さらに、本変形例の構成によれば、液体原料216により近い部分に、例えばカートリッジヒータであるヒータ250を設けて加熱することが可能なため、液体原料216の気化効率をさらに向上させることができる。
図12(a)に示すように、収集部218は、貯留タンク200の縦断面図において、視認できないように構成されていてもよい。具体的には、例えば、図12(b)に示すように、収集部218が開口部219に向かって傾斜するようにすり鉢状に形成されていてもよい。本変形例においても、上述の態様と同様の効果が得られる。なお、収集部218が、図12(b)に示す横断面図において、本体部221の中心部に設けられる場合も同様に、温度センサTC4を開口部219の近くに配置することで、上述の態様と同様の効果が得られる。
以上、本開示の態様を具体的に説明した。しかしながら、本開示は上述の態様に限定されるものではなく、その要旨を逸脱しない範囲で種々変更可能である。
201 側壁
TC1~TC4 温度センサ
218 収集部
Claims (24)
- 常温で液体の原料を収納する本体と、
前記本体の側壁に設けられる複数の温度センサと、
前記複数の温度センサのうち下端に配置される温度センサが設けられる側壁側に前記原料を集めるように形成されている収集部と、
を有する気化器。 - 更に、前記原料を補給するための供給口が前記本体の底壁に設けられ、
前記収集部は、前記供給口に向けて前記原料が流れるような構造を有する、
請求項1に記載の気化器。 - 前記供給口は、前記複数の温度センサのうち下端に配置される温度センサに近い位置に設けられる、
請求項2に記載の気化器。 - 前記収集部の最上端が前記複数の温度センサのうち下端に配置される温度センサより低く構成される、
請求項1に記載の気化器。 - 前記収集部の最上端が前記下端に配置される温度センサより高く配置されるように構成される、
請求項1に記載の気化器。 - 前記収集部が前記複数の温度センサのうち下端に配置される温度センサに対向する高さに配置されるよう構成される、
請求項5に記載の気化器。 - 前記本体の側壁は、凹凸形状に構成されており、
前記複数の温度センサが、凸部内に設置される、
請求項1に記載の気化器。 - 前記複数の温度センサは、縦断面図において、前記本体の側壁を高さ方向に関して均等に分割するよう配置される、
請求項1に記載の気化器。 - 前記収集部の表面は、縦断面図において、少なくとも一つの直線で示されるように構成されている、
請求項1に記載の気化器。 - 前記収集部の表面は、縦断面図において、複数の前記直線の組合せ、または、前記直線と曲線の組合せで示されるように構成されている、
請求項9に記載の気化器。 - 前記収集部の表面は、縦断面図において、曲線で示されるように構成されている、
請求項1に記載の気化器。 - 更に、前記複数の温度センサで測定される温度の変化に応じて、前記本体内の前記原料の残量を判定することが可能に構成されている制御部を有する、
請求項2に記載の気化器。 - 前記制御部は、前記複数の温度センサのうち下端に配置される温度センサの温度が変化したとき、前記原料の残量が不足していると判定するように構成されている、
請求項12に記載の気化器。 - 更に、液体供給部を有し、
前記制御部は、前記液体供給部に前記供給口から前記原料を補充させるように構成されている、
請求項12に記載の気化器。 - 前記制御部は、前記複数の温度センサのうち上端に配置される温度センサの温度が飽和状態になると、前記液体供給部に前記原料の供給を停止させるように構成されている、
請求項14に記載の気化器。 - 前記制御部は、前記供給口の近傍に設けられ、前記複数の温度センサのうち下端に配置される温度センサにより検出される温度に基づいて、前記供給口から前記原料を補給させるように構成されている、
請求項12に記載の気化器。 - 更に、前記複数の温度センサで測定された温度の推移を画面に表示する表示部を有し、 前記表示部は、前記温度センサの位置に応じて色分け表示するように構成されている、 請求項1に記載の気化器。
- 前記本体は、前記収集部の内部に少なくとも一つの棒状のヒータを設けるように構成されている、
請求項1に記載の気化器。 - 前記供給口から前記本体内に導入される前記原料を加熱するように構成されている予備加熱部を備えた、
請求項2に記載の気化器。 - 前記収集部は、横断面図において、多角形で構成されている、
請求項1に記載の気化器。 - 前記収集部は、すり鉢状に形成されている、
請求項1に記載の気化器。 - 常温で液体の原料を収納する本体と、
前記本体の側壁に設けられる複数の温度センサと、
前記複数の温度センサのうち下端に配置される温度センサが設けられる側壁側に前記原料を集めるように形成されている収集部と、
を有する気化器を備えた処理装置。 - 被処理体を処理空間に配置させる工程と、
常温で液体の原料を収納する本体と、前記本体の側壁に設けられる複数の温度センサと、前記複数の温度センサのうち下端に配置される温度センサが設けられる側壁側に前記原料を集めるように形成されている収集部と、を備えた気化器を介して、前記原料を前記処理空間に導入させる工程と、
を有する処理方法。 - 請求項23に記載の処理方法を用いて、半導体を含む基板に前記原料を供給して所定の処理を行う工程を有する、
半導体装置の製造方法。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380093198.XA CN120641601A (zh) | 2023-07-05 | 2023-07-05 | 气化器、处理装置、处理方法以及半导体装置的制造方法 |
| PCT/JP2023/025016 WO2025009125A1 (ja) | 2023-07-05 | 2023-07-05 | 気化器、処理装置および処理方法並びに半導体装置の製造方法 |
| JP2025530907A JPWO2025009125A1 (ja) | 2023-07-05 | 2023-07-05 | |
| KR1020257037512A KR20260032447A (ko) | 2023-07-05 | 2023-07-05 | 기화기, 처리 장치 및 처리 방법 및 반도체 장치의 제조 방법 |
| TW113124519A TW202514809A (zh) | 2023-07-05 | 2024-07-01 | 氣化器、處理裝置及處理方法以及半導體裝置的製造方法 |
| US19/341,876 US20260022458A1 (en) | 2023-07-05 | 2025-09-26 | Vaporizer, processing apparatus, processing method and method of manufacturing semiconductor device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2023/025016 WO2025009125A1 (ja) | 2023-07-05 | 2023-07-05 | 気化器、処理装置および処理方法並びに半導体装置の製造方法 |
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| US19/341,876 Continuation US20260022458A1 (en) | 2023-07-05 | 2025-09-26 | Vaporizer, processing apparatus, processing method and method of manufacturing semiconductor device |
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| WO2025009125A1 true WO2025009125A1 (ja) | 2025-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2023/025016 Ceased WO2025009125A1 (ja) | 2023-07-05 | 2023-07-05 | 気化器、処理装置および処理方法並びに半導体装置の製造方法 |
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| Country | Link |
|---|---|
| US (1) | US20260022458A1 (ja) |
| JP (1) | JPWO2025009125A1 (ja) |
| KR (1) | KR20260032447A (ja) |
| CN (1) | CN120641601A (ja) |
| TW (1) | TW202514809A (ja) |
| WO (1) | WO2025009125A1 (ja) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06316765A (ja) * | 1991-08-21 | 1994-11-15 | Rintetsuku:Kk | 液体原料用気化器 |
| JP2008524443A (ja) * | 2004-12-17 | 2008-07-10 | プラクスエア・テクノロジー・インコーポレイテッド | 分配装置及び該装置の使用方法 |
| WO2018123854A1 (ja) * | 2016-12-27 | 2018-07-05 | 株式会社フジキン | 液面計、それを備えた気化器、及び液面検知方法 |
| JP2023007476A (ja) * | 2021-06-28 | 2023-01-18 | エーエスエム・アイピー・ホールディング・ベー・フェー | 液体前駆体蒸気圧制御 |
-
2023
- 2023-07-05 JP JP2025530907A patent/JPWO2025009125A1/ja active Pending
- 2023-07-05 WO PCT/JP2023/025016 patent/WO2025009125A1/ja not_active Ceased
- 2023-07-05 CN CN202380093198.XA patent/CN120641601A/zh active Pending
- 2023-07-05 KR KR1020257037512A patent/KR20260032447A/ko active Pending
-
2024
- 2024-07-01 TW TW113124519A patent/TW202514809A/zh unknown
-
2025
- 2025-09-26 US US19/341,876 patent/US20260022458A1/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06316765A (ja) * | 1991-08-21 | 1994-11-15 | Rintetsuku:Kk | 液体原料用気化器 |
| JP2008524443A (ja) * | 2004-12-17 | 2008-07-10 | プラクスエア・テクノロジー・インコーポレイテッド | 分配装置及び該装置の使用方法 |
| WO2018123854A1 (ja) * | 2016-12-27 | 2018-07-05 | 株式会社フジキン | 液面計、それを備えた気化器、及び液面検知方法 |
| JP2023007476A (ja) * | 2021-06-28 | 2023-01-18 | エーエスエム・アイピー・ホールディング・ベー・フェー | 液体前駆体蒸気圧制御 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202514809A (zh) | 2025-04-01 |
| KR20260032447A (ko) | 2026-03-09 |
| US20260022458A1 (en) | 2026-01-22 |
| JPWO2025009125A1 (ja) | 2025-01-09 |
| CN120641601A (zh) | 2025-09-12 |
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