WO2015170813A1 - 액상 전구체 공급장치 - Google Patents
액상 전구체 공급장치 Download PDFInfo
- Publication number
- WO2015170813A1 WO2015170813A1 PCT/KR2014/013035 KR2014013035W WO2015170813A1 WO 2015170813 A1 WO2015170813 A1 WO 2015170813A1 KR 2014013035 W KR2014013035 W KR 2014013035W WO 2015170813 A1 WO2015170813 A1 WO 2015170813A1
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- WIPO (PCT)
- Prior art keywords
- precursor
- liquid precursor
- vaporizer
- liquid
- state
- Prior art date
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- 239000012705 liquid precursor Substances 0.000 title claims abstract description 81
- 239000002243 precursor Substances 0.000 claims abstract description 70
- 238000003860 storage Methods 0.000 claims abstract description 53
- 239000000443 aerosol Substances 0.000 claims abstract description 52
- 239000006200 vaporizer Substances 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 40
- 238000000427 thin-film deposition Methods 0.000 claims abstract description 23
- 238000009834 vaporization Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 230000008016 vaporization Effects 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000010926 purge Methods 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000004065 semiconductor Substances 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 16
- 238000001816 cooling Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 239000003446 ligand Substances 0.000 description 3
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013110 organic ligand Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
-
- 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
- C23C16/4486—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 producing an aerosol and subsequent evaporation of the droplets or particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/002—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour incorporating means for heating or cooling, e.g. the material to be sprayed
-
- 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
- C23C16/455—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 introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45561—Gas plumbing upstream of the reaction chamber
Definitions
- the present invention relates to a liquid precursor supply apparatus, and more particularly, to a liquid precursor supply apparatus capable of a thin film deposition process even at low temperatures when manufacturing a semiconductor device and a display device.
- a thin film deposition process using a liquid precursor is generally performed.
- the liquid precursor is synthesized in a form in which an organic metal ligand (Metal-Organic Ligand) surrounds the material to be deposited, and a process of decomposing the organic metal ligand using heat or plasma is applied for pure thin film deposition.
- an organic metal ligand Metal-Organic Ligand
- TMA Trimethyl-Aluminum
- alumina deposition is a structure in which three CH3 are surrounded by an Al component to decompose CH3 using heat, plasma, and ozone.
- the conventional liquid precursor supply device for supplying a liquid precursor generates a bubble in a container (storage tank or canister) in which the liquid precursor is contained, and then uses a carrier gas to process the chamber. Supply a liquid precursor to the.
- the thin film deposition process generally proceeds at a high temperature of 550 ° C. or higher, a high temperature heater is necessary to increase the temperature in order to perform the thin film deposition process at a high temperature, and deformation or thermal stress even at high temperatures of 550 ° C. or higher Since the substrate must be used without a substrate, a problem arises in that the production cost increases in the manufacture of semiconductor devices and displays.
- an object of the present invention is to provide a liquid precursor supplying apparatus capable of a thin film deposition process at a low temperature of less than 350 °C to solve the above problems.
- an object of the present invention is to provide a liquid precursor supply apparatus that can reduce the production cost when manufacturing a semiconductor device or a display device.
- the liquid precursor supply apparatus comprises an aerosol generator for converting the liquid precursor stored therein into an aerosol state by using ultrasonic vibration;
- a vaporizer provided with a heater block in which a plurality of heaters having an oblique plate-like structure intersect in a zigzag manner are arranged so that precursors in an aerosol state delivered from the aerosol generator collide with each other to obtain thermal energy and change into a gas state;
- precursor storage means for storing the precursor converted into the gas state by the vaporizer at a constant pressure and temperature, and supplying the gaseous precursor to the chamber during the thin film deposition process.
- the aerosol generator in the present invention the storage tank in which the liquid precursor is contained;
- An ultrasonic vibrator installed under the storage tank to generate ultrasonic vibration so that the liquid precursor contained in the storage tank is converted into an aerosol;
- a level sensor installed to protrude into the storage tank to detect the remaining amount of the liquid precursor in the storage tank.
- the heater is characterized in that the nickel body is composed of a material containing tungsten.
- the vaporizer further comprises a temperature controller capable of maintaining the temperature of the heater block uniformly to increase the instantaneous vaporization rate.
- the temperature controller is characterized in that the temperature of the heater block is adjusted to suit the liquid precursor having a vaporization range of 350 °C at room temperature.
- the vaporizer in the present invention is characterized in that the vaporization capacity can be adjusted according to the type of the liquid precursor.
- the precursor storage means is provided with an automatic purifying function for cleaning the interior in a gas purge method in a vacuum state in order to prevent the liquid precursor residues therein in the idle state in which the thin film deposition process is not performed. do.
- the present invention is characterized in that it further comprises an insulated valve installed between the vaporizer and the precursor storage means to block the continuous supply of the precursor from the vaporizer to the precursor storage means.
- the insulating valve is characterized in that the precursor is opened after being completely converted to the gas state in the vaporizer.
- the present invention canister stored liquid precursor; A liquid flow controller installed between the canister and an aerosol generator to adjust a flow rate of a liquid precursor supplied from the canister to an aerosol generator; A regulator installed between the canister and a liquid flow controller to regulate the pressure of a liquid precursor; A first control valve installed between the canister and the regulator; A second regulating valve disposed between the canister and the liquid flow controller; And a third control valve installed between the first control valve and the second control valve.
- the aerosol precursor is converted into the aerosol state and supplied to the vaporizer, the aerosol precursor is uniformly distributed in the vaporizer, thereby preventing local cooling phenomenon due to the heat of vaporization, and the aerosol precursor is inclined. Since it is made of a plate-shaped structure and collides with heaters arranged in a zigzag cross, it changes to a gaseous state, thereby ensuring maximum heat capacity inside the vaporizer, and thus it is possible to supply a liquid precursor capable of thin film deposition process even at low temperatures. Since no substrate is required, production costs can be reduced when manufacturing semiconductor devices and displays.
- FIG. 1 is a view showing a vaporization method of a liquid precursor using a conventional bubble method.
- FIG. 2 is a view showing a liquid precursor supply apparatus according to an embodiment of the present invention.
- FIG. 3 is a view showing the aerosol generator shown in FIG.
- FIG. 4A is a front view of a heater block installed in the vaporizer shown in FIG. 2.
- FIG. 4B is a side view of the heater block installed in the vaporizer illustrated in FIG. 2.
- FIG. 5 is a view showing the precursor storage means shown in FIG.
- FIG. 2 is a view showing a liquid precursor supply apparatus according to an embodiment of the present invention
- Figure 3 is a view showing the aerosol generator shown in Figure 2
- Figure 4a of the heater block installed in the vaporizer shown in Figure 2 Front view
- Figure 4b is a side view of the heater block installed in the vaporizer shown in Figure 2
- Figure 5 is a view showing the precursor storage means shown in FIG.
- the liquid precursor supply apparatus includes an aerosol generator 10, a vaporizer 20, and a precursor storage unit 30. It is composed.
- the aerosol generator 10 is a device for converting a liquid precursor stored therein into an aerosol state using a piezo type ultrasonic vibrator 14, a storage tank 12 in which the liquid precursor is contained, Ultrasonic vibrator 14 and the storage tank 12 is installed below the storage tank 12 to generate the ultrasonic vibration to be transmitted to the storage tank 12 so that the liquid precursor contained in the storage tank 12 is converted into an aerosol. It is provided to protrude into the inside of the) is composed of a level sensor (or weight sensor) 16 for detecting the residual amount of the liquid precursor.
- the ultrasonic vibrator 14 is operated when power is supplied from the outside to the ultrasonic oscillation and rectification circuit 15, as shown in Figure 3 to generate ultrasonic vibration
- the level sensor 16 is a level sensor power supply And when power is supplied to the rectifier circuit 17 to detect the remaining amount of the liquid precursor in the storage tank 12.
- the reason why the aerosol generator 10 converts the liquid precursor to the aerosol state is to ensure maximum heat capacity of the vaporizer 20 installed after the aerosol generator 10.
- the aerosol type can be uniformly distributed inside the vaporizer when fed to the vaporizer in a semi-gas state, thereby preventing local cooling due to vaporization heat generated by the conventional bubble method, thereby ensuring maximum heat capacity. Can be.
- the vaporizer 20 is a device for making the aerosol precursor delivered from the aerosol generator 10 into a gaseous state.
- the vaporizer 20 is a heater in which a plurality of heaters 24 having an oblique plate-like structure inside are arranged in a zigzag cross-section as shown in FIGS. 4A and 4B in order to secure the maximum heat capacity of the vaporizer 20.
- a heater block 22 is provided, and precursors fed in an aerosol state collide with the heater block 22 to obtain thermal energy and convert it into a gaseous state.
- the heaters 24 of the heater block 22 can be used as long as any metal material capable of rising 350 °C or more, preferably nickel (Ni) made of a material containing tungsten (W) in the body desirable.
- the vaporizer 20 is preferably provided with a temperature controller (not shown) that can maintain a uniform temperature of the heaters 24 of the heater block 22 to increase the instantaneous vaporization rate.
- the temperature controller may adjust the temperature range inside the vaporizer 20 according to the temperature of the heater block 22 so that the vaporizer 20 can be utilized in various liquid precursors, preferably the vaporization range of 350 °C at room temperature
- the temperature of the heater block 22 can be adjusted to suit the liquid precursor having.
- the vaporizer 20 is formed to have a vaporization capacity of 0.3g / cm 3 maximum, it is possible to adjust the vaporization capacity according to the type of liquid precursor available.
- the precursor storage means 30 is a device for storing the precursor vaporized by the vaporizer 20 at a constant pressure and temperature, it is formed in a sphere capable of securing a heat capacity to maintain a constant pressure (that is, a constant saturated vapor pressure) do.
- the precursor storage means 30 is preferably provided with a pressure measuring means for measuring the pressure inside the precursor storage means 30 and a pressure adjusting means for adjusting the internal pressure of the precursor storage means 30, the precursor Temperature measuring means for measuring the temperature inside the storage means 30 and a temperature control means (for example, a heater) for adjusting the internal temperature of the precursor storage means 30 may be further provided.
- the precursor storage means 30 has an auto purge function to clean the inside of the precursor storage means 30 in a gas purge manner in a vacuum state in order to prevent the liquid precursor residues therein.
- the precursor storage means 30, the carrier / purge gas supply pipe is supplied to the carrier / purge gas (Carrier / Purge Gas) as shown in Figure 5 and the bypass to discharge the carrier / purge gas used for cleaning
- a line is installed and a valve is installed in the carrier / purge gas supply pipe, the bypass line and the discharge line discharged to the chamber, respectively.
- the automatic purging function does not occur when the thin film deposition process is in progress, and is controlled to proceed in an idle state where the thin film deposition process is not in progress, and the automatic purifying time is within 20 seconds so as not to affect the thin film deposition process. Controlled.
- This automatic purifying function is controlled by a control means (not shown), and the control means is preferably configured to control functions such as the temperature controller, the pressure regulating means, the temperature regulating means and the like in addition to the automatic purifying function described above. .
- Such a liquid precursor supplying device of the present invention is a liquid phase is stored between the canister 40, the canister 40 and the aerosol generator 10, the liquid precursor is stored is supplied to the aerosol generator 10 from the canister 40 Liquid Mass Flow Controller (LMFC or LFC) 50 to adjust the flow rate of the precursor, regulator is installed between the canister 40 and the liquid flow controller 50 to regulate the pressure of the liquid precursor (Regulator) 60, a plurality of regulating valves 62 respectively installed between the canister 40 and the regulator 60 and between the canister 40 and the liquid flow controller 50.
- LMFC or LFC Liquid Mass Flow Controller
- the liquid precursor supply apparatus according to the embodiment of the present invention having such a configuration is driven by the following method.
- the control means determines whether the thin film deposition process is in progress, and when the idle state in which the thin film process is not in progress, the liquid precursor stored in the canister 40 is transferred to the aerosol generator 10 and the regulator 40.
- the control valve 62 is preferably controlled by the control means may be manually operated by a person.
- control valve 62 controls the operation of the regulator 60 to adjust the pressure of the liquid precursor delivered from the canister 40 to the aerosol generator 10,
- the liquid flow controller 50 is controlled to adjust the flow rate of the liquid precursor delivered from the canister 40 to the aerosol generator 10.
- the control means When the liquid precursor is supplied to the aerosol generator 10, the control means operates the ultrasonic vibrator 14 to convert the liquid precursor contained in the aerosol generator 10 into an aerosol by ultrasonic vibration.
- the level sensor 16 detects the residual amount of the liquid precursor and transmits the residual amount of the liquid precursor to the control means, and the control means receives the aerosol generator 10 in accordance with the liquid precursor remaining amount detection signal transmitted from the level sensor 16.
- the control valve 62, the regulator 60 and the liquid flow controller 50 are controlled such that the residual amount of liquid precursor is maintained at an appropriate level (eg, the amount needed for the thin film deposition process).
- the control means may calculate the amount of aerosol generated per unit time through the liquid precursor remaining amount detection information transmitted from the level sensor 16 and provide the calculated amount to the user.
- a precursor converted into an aerosol state in the aerosol generator 10 is transferred to the vaporizer 20, and precursors in the aerosol state transferred to the vaporizer 20 are installed in an oblique plate-shaped structure in the vaporizer 20. Impinge on block 22 to obtain thermal energy and convert it to a gaseous state. At this time, the heater block 22 is adjusted to maintain a uniform temperature by the temperature controller.
- the control means is an insulating valve installed between the vaporizer 20 and the precursor storage means 30 so that the precursor converted to the gas state is stored in the precursor storage means 30 Open the isolation valve or shut-off valve (not shown).
- the insulating valve is to prevent the precursor from being continuously supplied from the vaporizer 20 to the precursor storage means 30, and is locked until the precursor is completely converted into the gas state in the vaporizer 20. It is opened after the precursor has been completely converted to the gaseous state.
- the present invention can prevent the gaseous precursor from being phase-converted into the liquid state.
- the conventional bubble type liquid precursor supply apparatus when the liquid precursor moves to the vaporizer through heating after the injection, local cooling occurs by heat of vaporization, so that the gaseous precursor is phase-converted to the liquid state. Since only the precursor completely vaporized by the sufficient heat of vaporization in the silver vaporizer 20 is supplied to the precursor storage means 30, it is possible to prevent the gaseous precursor from phase-converting back to the liquid state.
- control means performs an automatic purging function to prevent the liquid precursor from being present in the precursor storage means 30 before the precursor in the gaseous state is supplied into the precursor storage means 30. Clean the inside.
- the automatic purifying function is performed for a time within 20 seconds during the idle period in which the thin film deposition process is not performed so as not to affect the thin film deposition process.
- the pressure measuring means measures the pressure inside the precursor storage means 30, the measured pressure information is transmitted to the control means, by the pressure adjusting means
- the control means controls the pressure regulating means such that the pressure in the precursor storage means 30 is maintained in an appropriate state.
- the control means controls the temperature control means so that the inside of the precursor storage means 30 is maintained at an appropriate temperature by the temperature adjusting means. To control.
- the supply valve 64 between the precursor storage means 30 and the chamber is opened to control the supply valve 64 so that the gaseous precursor stored in the precursor storage means 30 is supplied to the chamber. To control. At this time, the supply valve 64 remains locked by the control of the control means during the idle period during which the thin film deposition process does not proceed.
- the precursor of the aerosol state is uniformly distributed in the vaporizer 20, and thus, local cooling by vaporization heat is performed.
- the phenomenon can be prevented, and since the precursor of the aerosol state is made into a diagonal plate-shaped structure and collides with the heaters 24 arranged in a zigzag crossing, the gas is changed into a gas state, thereby ensuring maximum heat capacity inside the vaporizer 20. Therefore, it is possible to supply a liquid precursor capable of a thin film deposition process even at low temperature, and it is possible to reduce the production cost when manufacturing a semiconductor device and a display because it is not necessary to use a substrate used at a high temperature.
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Abstract
Description
Claims (10)
- 초음파 진동을 이용하여 내부에 저장된 액상 전구체를 에어로졸 상태로 변환시키는 에어로졸 생성기;상기 에어로졸 생성기로부터 전달된 에어로졸 상태의 전구체가 충돌하여 열에너지를 얻어 기체 상태로 변화되도록 내부에 사선 판형 구조를 갖는 복수 개의 히터들이 지그재그로 교차되게 배치된 히터 블록이 설치된 기화기; 및상기 기화기에 의해 기체 상태로 변환된 전구체를 일정한 압력 및 온도로 저장하고, 박막 증착 공정 시 상기 기체 상태의 전구체를 챔버로 공급하는 전구체 저장수단을 포함하는 것을 특징으로 하는 액상 전구체 공급장치.
- 청구항 1에 있어서,상기 에어로졸 생성기는,내부에 액상 전구체가 담겨지는 저장탱크;상기 저장탱크 하부에 설치되어 상기 저장탱크 내부에 담겨져 있는 액상 전구체가 에어로졸로 변환되도록 초음파 진동을 발생시키는 초음파 진동기; 및상기 저장탱크의 내부로 돌출되게 설치되어 상기 저장탱크 내부의 액상 전구체 잔량을 검출하는 레벨 센서를 포함하는 것을 특징으로 하는 액상 전구체 공급장치.
- 청구항 1에 있어서,상기 히터는 니켈 몸체에 텅스텐이 함유된 재질로 구성되는 것을 특징으로 하는 액상 전구체 공급장치.
- 청구항 1에 있어서,상기 기화기는 순간 기화율을 높이기 위해 히터 블록의 온도를 균일하게 유지할 수 있는 온도 컨트롤러를 더 포함하는 것을 특징으로 하는 액상 전구체 공급장치.
- 청구항 4에 있어서,상기 온도 컨트롤러는 상온에서 350℃의 기화 범위를 갖는 액상 전구체에 적합하도록 히터 블록의 온도를 조절하는 것을 특징으로 하는 액상 전구체 공급장치.
- 청구항 1에 있어서,상기 기화기는 액상 전구체의 종류에 따라 기화 용량의 조절이 가능한 것을 특징으로 하는 액상 전구체 공급장치.
- 청구항 1에 있어서,상기 전구체 저장수단은 박막 증착 공정이 진행되지 않은 휴지 상태에서 내부에 액상 전구체 잔유물이 존재하는 것을 방지하기 위해 진공 상태에서 가스 퍼지 방식으로 내부를 세정하는 자동 정화 기능이 구비된 것을 특징으로 하는 액상 전구체 공급장치.
- 청구항 1에 있어서,상기 기화기에서 전구체 저장수단으로 전구체가 지속적으로 공급되는 것을 차단하기 위해 상기 기화기와 전구체 저장수단 사이에 설치된 절연 밸브를 더 포함하는 것을 특징으로 하는 액상 전구체 공급장치.
- 청구항 8에 있어서,상기 절연 밸브는 전구체가 기화기 내에서 완전히 기체 상태로 변환된 후 개방되는 것을 특징으로 하는 액상 전구체 공급장치.
- 청구항 1에 있어서,액상 전구체가 저장된 캐니스터;상기 캐니스터와 에어로졸 생성기 사이에 설치되어 상기 캐니스터에서 에어로졸 생성기로 공급되는 액상 전구체의 유량을 조절하는 액체 유량 제어기;액상 전구체의 압력을 조절하기 위해 상기 캐니스터와 액체 유량 제어기 사이에 설치된 레귤레이터;상기 캐니스터와 레귤레이터 사이에 설치된 제1 조절 밸브;상기 캐니스터와 액체 유량 제어기 사이에 설치된 제2 조절 밸브; 및상기 제1 조절 밸브와 제2 조절 밸브 사이에 설치된 제3 조절 밸브를 더 포함하는 것을 특징으로 하는 액상 전구체 공급장치.
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US14/760,227 US20170056912A1 (en) | 2014-05-09 | 2014-12-30 | Liquid precursor delivery system |
JP2016518288A JP6014292B2 (ja) | 2014-05-09 | 2014-12-30 | 液状前駆体供給装置 |
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KR10-2014-0055770 | 2014-05-09 | ||
KR1020140055770A KR101585054B1 (ko) | 2014-05-09 | 2014-05-09 | 액상 전구체 공급장치 |
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US (1) | US20170056912A1 (ko) |
JP (1) | JP6014292B2 (ko) |
KR (1) | KR101585054B1 (ko) |
WO (1) | WO2015170813A1 (ko) |
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CA208741S (en) | 2019-08-01 | 2022-04-07 | Nicoventures Trading Ltd | Aerosol generating device |
US11459654B2 (en) * | 2020-11-19 | 2022-10-04 | Eugenus, Inc. | Liquid precursor injection for thin film deposition |
USD985187S1 (en) | 2021-01-08 | 2023-05-02 | Nicoventures Trading Limited | Aerosol generator |
JP2024524401A (ja) * | 2021-07-01 | 2024-07-05 | アプライド マテリアルズ インコーポレイテッド | 前駆体を処理チャンバに供給するためのシステムおよび方法 |
USD984730S1 (en) | 2021-07-08 | 2023-04-25 | Nicoventures Trading Limited | Aerosol generator |
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- 2014-12-30 JP JP2016518288A patent/JP6014292B2/ja active Active
- 2014-12-30 WO PCT/KR2014/013035 patent/WO2015170813A1/ko active Application Filing
- 2014-12-30 US US14/760,227 patent/US20170056912A1/en not_active Abandoned
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KR20150128417A (ko) | 2015-11-18 |
US20170056912A1 (en) | 2017-03-02 |
JP6014292B2 (ja) | 2016-10-25 |
KR101585054B1 (ko) | 2016-01-14 |
JP2016521318A (ja) | 2016-07-21 |
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