WO2023222033A1 - 一种基片处理设备和方法 - Google Patents
一种基片处理设备和方法 Download PDFInfo
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- WO2023222033A1 WO2023222033A1 PCT/CN2023/094772 CN2023094772W WO2023222033A1 WO 2023222033 A1 WO2023222033 A1 WO 2023222033A1 CN 2023094772 W CN2023094772 W CN 2023094772W WO 2023222033 A1 WO2023222033 A1 WO 2023222033A1
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- pipeline
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- 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
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
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- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
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- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/69—Inorganic materials
- H10P14/692—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses
- H10P14/6921—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses containing silicon
- H10P14/69215—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses containing silicon the material being a silicon oxide, e.g. SiO2
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- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/69—Inorganic materials
- H10P14/692—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses
- H10P14/6938—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses the material containing at least one metal element, e.g. metal oxides, metal oxynitrides or metal oxycarbides
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- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/69—Inorganic materials
- H10P14/692—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses
- H10P14/6938—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses the material containing at least one metal element, e.g. metal oxides, metal oxynitrides or metal oxycarbides
- H10P14/6939—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses the material containing at least one metal element, e.g. metal oxides, metal oxynitrides or metal oxycarbides characterised by the metal
- H10P14/69391—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses the material containing at least one metal element, e.g. metal oxides, metal oxynitrides or metal oxycarbides characterised by the metal the material containing aluminium, e.g. Al2O3
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- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/69—Inorganic materials
- H10P14/692—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses
- H10P14/6938—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses the material containing at least one metal element, e.g. metal oxides, metal oxynitrides or metal oxycarbides
- H10P14/6939—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses the material containing at least one metal element, e.g. metal oxides, metal oxynitrides or metal oxycarbides characterised by the metal
- H10P14/69394—Inorganic materials composed of oxides, glassy oxides or oxide-based glasses the material containing at least one metal element, e.g. metal oxides, metal oxynitrides or metal oxycarbides characterised by the metal the material containing titanium, e.g. TiO2
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- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/69—Inorganic materials
- H10P14/694—Inorganic materials composed of nitrides
- H10P14/6943—Inorganic materials composed of nitrides containing silicon
- H10P14/69433—Inorganic materials composed of nitrides containing silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to the field of semiconductor process technology, and in particular to a substrate processing equipment and method.
- the current tubular equipment process is mainly based on ion enhancement process, but PECVD technology cannot guarantee the film conformability on the front texturing morphology, and there are uneven alumina depositions. question.
- plasma technology will also cause some bombardment damage to the passivated surface and thus cannot achieve the best passivation effect. Therefore, there is an urgent need for a substrate processing equipment and method to improve the above problems.
- the object of the present invention is to provide a substrate processing equipment and method, which performs thermal atomic layer deposition on the substrate on a tubular PECVD equipment platform, and deposits aluminum oxide and silicon nitride. Art combined in one device.
- the present invention provides a substrate processing equipment, which integrates a thermal ALD processing unit and a PECVD processing unit;
- the thermal ALD processing unit includes: a carrier gas source, a first pipeline, a second pipeline, a source Bottle, oxygen source, first fluid valve, second fluid valve and equipment cavity;
- the equipment cavity accommodates the substrate and serves as a reaction place for the substrate;
- the first pipeline and the second pipeline are used to transport carrier gas to the cavity;
- the carrier gas source is used to provide the carrier gas;
- the oxygen source is used to provide oxidant;
- the source bottle is used to accommodate chemical sources; when the carrier gas is passed through When entering the source bottle, the carrier gas carries the chemical source into the equipment cavity;
- the first fluid valve is used to control whether the chemical source flows through the first pipeline;
- the second The fluid valve is used to control whether the oxidant flows through the second pipeline.
- the beneficial effects of the substrate processing equipment of the present invention are: uniformly transmitting chemical sources and oxidants to the equipment cavity through the plurality of first pipelines and the plurality of second pipelines respectively, thereby solving the problem of uniformity of deposited alumina The problem; the first fluid valve is used to control the communication between the source bottle and the first pipeline; the second fluid valve is used to control the communication between the ozone generator and the second pipeline.
- the process conditions for thermal atomic layer deposition of the substrate on the tubular PECVD equipment platform were achieved.
- the thermal atomic layer deposition improved the film conformability on the texturing morphology of the substrate surface, and at the same time, avoided passivation surface damage. , which is conducive to achieving the best passivation effect.
- the present invention arranges the pipeline so that during the entire ALD process, the gas flowing into the chamber is injected into the vacuum environment from the chamber door end and flows out from the opposite end, wherein an internal chamber is provided downstream of the gas outflow end.
- the pump entering the cavity has a stable gas flow, which makes the process gas flow field a stable advection, making the process controllable and improving the quality of the film layer. Improve product quality.
- the first processing unit is a thermal ALD processing unit, and at least one gas of the thermal ALD processing unit is pulsed into the equipment cavity;
- the second processing unit is a PECVD processing unit, and the PECVD processing unit The gas is introduced into the same equipment cavity in a non-pulse manner.
- the PECVD processing unit and the thermal ALD processing unit share the carrier gas source and the equipment chamber.
- the vacuum process part of the tubular equipment is a hot wall quartz tube, in which the heater is a heating wire or heating plate combination with no less than 4 temperature setting intervals to control the hot wall temperature.
- the PECVD processing unit and the thermal ALD processing unit share the carrier gas source, the source bottle and the equipment cavity.
- the oxygen source is a gaseous oxygen source or an active plasma oxide.
- the plurality of reaction pipelines independently provide gases required for the process into the chamber.
- the carrier gas source has a switching valve, and the switching valve is used to select to provide carrier gas with the same flow rate to the first pipeline or the second pipeline.
- the gaseous oxygen source is connected to the second pipeline through a third pipeline, and a flow meter is provided in the third pipeline, and the flow meter detects the gas flow in the third pipeline;
- An exhaust pipeline is provided on the second pipeline close to the carrier gas source.
- the exhaust pipeline includes a flow controller.
- the flow controller controls the exhaust pipeline to discharge gas from the second pipeline.
- the exhaust gas is The flow rate is the same as the gas flow rate measured by the flow meter.
- the oxygen source includes at least two oxidants with different components, which are respectively connected to the second pipeline.
- the oxygen source is selectively connected to one of at least two oxidizing agents with different components.
- At least one oxygen source is an ozone generator, and at least one oxygen source is an oxygen source bottle.
- the ozone generator is connected to a third pipeline, the third pipeline is connected to the second pipeline, a flow meter is provided in the third pipeline, and the flow meter detects the third pipeline.
- the source bottle and the first pipeline are arranged in parallel; the carrier gas flows through at least one of the source bottle and the first pipeline.
- the source bottle is provided with an adjustment part for adjusting the gas flow entering the source bottle; when the carrier gas flows through the source bottle and the first pipeline at the same time, the adjustment part Used to adjust the proportion of gas flow distributed to the source bottle.
- the carrier gas source has a switching valve, and the switching valve is used to select to provide carrier gas with the same flow rate to the first pipeline or the second pipeline.
- the equipment cavity is provided with a furnace mouth flange; the first pipeline and the second pipeline are both connected to the furnace mouth flange; the furnace mouth flange is provided with several air channels , the gas is vertically injected into the cavity along the axial direction of the gas channel and the furnace tube, and each of the gas channels is used to connect the equipment cavity with the first pipeline or the second pipeline respectively.
- the equipment further includes an ozone destroyer; the ozone destroyer is used to process excess ozone generated by the ozone generator; the ozone generator is connected to a third pipeline and a fourth pipeline; the third pipeline The third pipeline is connected to the second fluid valve, and the fourth pipeline is connected to the ozone destroyer.
- each pipeline has undergone anti-oxidation treatment.
- the anti-oxidation treatment includes aluminum oxide plating.
- the ozone generator is connected to an oxygen source and a nitrogen source; the nitrogen source is used to control the ozone concentration produced by the ozone generator; the ozone concentration is set to [16, 20] wt%.
- the equipment further includes a vacuum pump; the vacuum pump is used to extract gas from the reaction chamber.
- the equipment further includes an exhaust gas processor; the exhaust gas processor is used to process the gas extracted from the reaction chamber; the exhaust gas processor is also used to process the gas exhausted from the ozone destroyer.
- the equipment cavity is provided with a heater, and the heater is used to control the reaction temperature of the equipment cavity.
- the equipment cavity is also provided with an auxiliary heat pipe, and the auxiliary heat pipe is used for heating to rapidly heat up the equipment cavity.
- the PECVD processing unit and the thermal ALD processing unit share the carrier gas source and the source bottle.
- a graphite boat is provided in the reaction chamber; the number of the graphite boats is N, and N is a positive integer; the graphite boat is used to carry the substrate; the number of substrates carried by the graphite boat is M, M is a positive integer.
- the present invention provides a substrate processing method that uses the equipment described in any one of the first aspects to perform thermal ALD and PECVD processing on the substrate in the same chamber.
- the thermal ALD processing includes: When the carrier gas source is working, the carrier gas is continuously transmitted to the equipment cavity through the first pipeline and the second pipeline; the first reaction step is performed, including: the first fluid valve is opened for a period of time t1 and then closed.
- a heater heats the substrate; the carrier gas source fills the equipment cavity with the carrier gas and performs a pressure maintaining test; a vacuum pump Extract the gas from the device cavity.
- the carrier gas source continuously supplies the same flow rate of carrier gas to the cavity through the first pipeline or the second pipeline through the switching valve. This embodiment can ensure that the gas flow rate flowing into the equipment cavity from the second pipeline is the same as the gas flow rate flowing into the equipment cavity from the first pipeline.
- the ozone generator remains on, and the ozone generator generates Excess ozone is disposed of by the ozone destroyer.
- the ozone generator remains on, and when gas is provided to the second pipeline through the third pipeline, the second pipeline is connected through the exhaust pipeline provided near the carrier gas source on the second pipeline.
- the carrier gas in the pipe is discharged outward, and the flow rate of the discharged gas is the same as the gas flow rate in the third pipeline.
- the gas extracted by the vacuum pump from the equipment cavity is passed into the exhaust gas processor; the gas exhausted by the ozone destructor is passed into the exhaust gas processor.
- the substrate continues to undergo the PECVD process in the equipment cavity.
- the chemical source includes trimethylaluminum; the surface of the substrate has a layer of hydroxyl groups that satisfies the following chemical reaction formula: nsurf-OH+Al(CH 3 ) 3 ⁇ surf-O-Al(CH 3 ) 3-n +nCH 4
- n 1 or 2.
- the first reaction step satisfies the following chemical reaction formula: nsurf-AlOH+Al(CH 3 ) 3 ⁇ surf-(nAl)-O-Al(CH 3 ) 3-n +nCH 4
- n 1 or 2; the second reaction step satisfies the following chemical reaction formula: (3-n)surf-AlCH 3 +(3-n)O 3 ⁇ (3-n)surf-AlCH 2 OH+(3-n)O 2
- n 1 or 2; the product of the second reaction step satisfies the following chemical reaction formula: 2surf-AlCH 2 OH ⁇ 2surf-AlOH+C 2 H 4 .
- the thermal ALD process is realized for the first time on a tubular platform, thereby forming a first deposition layer such as aluminum oxide and silicon oxide in the device cavity in a pulse manner. , gallium oxide, titanium oxide or other oxides; then, a second deposition layer different from the first deposition layer, such as silicon nitride, is formed in a non-pulse manner in the same device cavity, which can avoid the use of plasma in the existing technology. Defects caused by direct bombardment of silicon-based surfaces.
- This application realizes the thermal ALD process on a tubular platform for the first time. Compared with the traditional PEALD process, it is also relatively simple.
- the process adjustment can be made by controlling the temperature, the flow rate, time and concentration of the oxygen source and TMA source. .
- the selectivity of different oxygen sources is achieved, and it also ensures that the gas flow rate entering the cavity does not change when gas is introduced, thereby ensuring process stability.
- Figure 1 is a schematic diagram of the deposition structure of various film layers of a TOPCon battery in the prior art
- Figure 2 is a schematic structural diagram of a substrate processing equipment provided by an embodiment of the present invention.
- Figure 3 is a schematic structural diagram of the first equipment cavity provided by an embodiment of the present invention.
- Figure 4 is a side view of the second equipment cavity provided by the embodiment of the present invention.
- Figure 5 is a schematic structural diagram of another substrate processing equipment provided by an embodiment of the present invention.
- Figure 6 is a schematic flow chart of a substrate processing method provided by an embodiment of the present invention.
- Figure 7 is a schematic diagram of a substrate area division provided by the present invention.
- Figure 8 is a box diagram of the minority carrier lifetime of a substrate provided by an embodiment of the present invention.
- FIG. 9 is a box diagram of the recessive open circuit voltage of a substrate provided by an embodiment of the present invention.
- Figure 1 is a schematic diagram of the deposition structure of various film layers of a TOPCon battery in the prior art.
- Figure 2 is a schematic structural diagram of a substrate processing equipment provided by an embodiment of the present invention.
- the present invention provides a substrate treatment method.
- Processing equipment the equipment is used to perform thermal atomic layer deposition on the substrate on a tubular PECVD equipment platform.
- the equipment includes: a carrier gas source 202, a first pipeline 205, a second pipeline 206, a source bottle 204, an ozone generator 203, a first fluid valve 210, a second fluid valve 211 and an equipment cavity 201.
- the equipment cavity 201 is used to accommodate the substrate and serve as a reaction place for the substrate.
- the first pipeline 205 and the second pipeline 206 are both used to transport carrier gas to the equipment cavity 201 .
- the carrier gas source 202 is used to provide the carrier gas.
- the carrier gas is used to purge the device cavity 201 .
- the ozone generator 203 is used to provide ozone.
- the source bottle 204 is used to contain chemical sources. When the carrier gas flows into the source bottle 204, the carrier gas carries the chemical source into the equipment cavity 201.
- the first fluid valve 210 is used to control the communication between the source bottle 204 and the first pipeline 205 .
- the second fluid valve 211 is used to control the communication between the ozone generator 203 and the second pipeline 206 .
- the device further includes an oxygen source bottle 240; the oxygen source bottle 240 is used to contain purified water.
- the oxygen source bottle 240 is connected to the second pipeline 206 through the second fluid valve 211 .
- the second fluid valves 211 connected to the oxygen source bottle 240 are all opened, the carrier gas enters the oxygen source bottle 240, and the pure water in the oxygen source bottle 240 enters the equipment cavity through the second pipeline 206. 201 participating reactions.
- the oxygen source bottle 240 and the ozone generator 203 can be set on the second pipeline at the same time, and the oxygen source can be selected through the setting of the valve.
- Water can be selected as the oxygen source, or ozone can be selected as the oxygen source. That is, the oxygen source includes at least two oxidants with different components, which are respectively connected to the second pipeline. At least one oxygen source is an ozone generator, and at least one oxygen source is an oxygen source bottle. Selection via valves allows further selection of the oxygen source in each half-reaction.
- Figure 3 is a schematic structural diagram of a first equipment cavity provided by an embodiment of the present invention.
- the equipment cavity 201 is connected with a furnace mouth flange 230.
- the furnace mouth flange 230 is provided with a plurality of air passages 220.
- the first pipeline 205 and the second pipeline 206 are both connected to the furnace mouth flange 230 .
- the first pipeline 205 and the second pipeline 206 are both connected to the equipment cavity 201 through the plurality of air channels 220 .
- Figure 4 is a side view of the second equipment cavity provided by the embodiment of the present invention.
- the device is provided with several first air channels 221 and several second air channels 222, and the plurality of first air channels 221 and several second air channels 222 are all annular. They are distributed on one side of the equipment cavity 201; the first air channel 221 is connected to the first pipeline 205; the second air channel 222 is connected to the second pipeline 206.
- This design avoids early mixing of chemical sources and oxides at the first pipeline 205 or the second pipeline 206 and the flange and related safety issues.
- the annular distribution of the air channels helps gas enter the cavity evenly, avoids excessive local gas concentration, and makes the deposition reaction more uniform.
- the problem of uniformity of aluminum oxide deposited by the PEALD process is solved.
- the oxide may be ozone, oxygen or water.
- the chemical source may be one or more of an aluminum source, a gallium source, a titanium source and a silicon source.
- the carrier gas source 202 is used to provide inert gas or nitrogen as a carrier and purge gas that does not participate in the deposition reaction, and the first fluid valve 210 and the second fluid valve 211 are configured as pneumatic valves.
- the equipment cavity 201 is configured as a quartz tube.
- the equipment cavity 201 is provided with two gas inlets, which are connected to the first pipeline 205 and the second pipeline 206 respectively.
- the source bottle 204 is located on one side of the first pipeline 205.
- the source bottle 204 is provided with an inlet and an outlet. Both the inlet and the outlet of the source bottle 204 are connected to the first fluid valve 210 through two first fluid valves 210.
- the first pipeline 205 is connected.
- the carrier gas flows through the source bottle 204, and the carrier gas carries the chemical source into the device cavity 201, so
- the chemical source includes one or more of aluminum source, gallium source, titanium source and silicon source.
- the aluminum source includes trimethylaluminum.
- both first fluid valves 210 are closed, the carrier gas directly enters the device cavity 201 through the first pipeline 205 .
- the second fluid valve 211 is disposed on one side of the second pipeline 206. When the second fluid valve 211 is opened, the ozone generated by the ozone generator 203 flows to the equipment through the second pipeline 206. Cavity 201.
- the substrate processing equipment provided by the present invention can be suitable for thermal atom deposition of oxides such as aluminum oxide, gallium oxide, silicon oxide, titanium oxide, etc., and facilitates the selection of reaction precursors or chemical sources according to needs.
- the carrier gas source 202 can also be used to provide non-reactive gas, and the first fluid valve 210 and the second fluid valve 211 are configured as solenoid valves or any other types of valves.
- the equipment cavity 201 can be made of other materials and have any three-dimensional spatial structure.
- the equipment cavity 201 may be provided with more than two gas inlets.
- the source bottle 204 can be disposed at any position of the first pipeline 205 .
- the carrier gas source may have a switching valve, the switching valve is used to select to provide the carrier gas with the same flow rate to the first pipeline or the second pipeline, and the switching valve may directly pass into
- the carrier gas in the first pipeline is directly switched to the same flow rate of carrier gas flowing into the second pipeline, or the flow rate of the gas in the first pipeline can be gradually reduced while increasing the flow rate of the gas in the second pipeline.
- the flow rate reduced by the first pipeline is the same as the flow rate increased by the second pipeline, so that the total amount of air flow entering the cavity through the first pipeline and the second pipeline is the same.
- the specific method can be a three-way structure, one inlet As the carrier gas source, one outlet is equipped with a control valve connected The first pipeline is connected, and the other outlet is provided with a control valve to connect to the second pipeline.
- this application does not impose specific restrictions, and any structure that can realize the aforementioned functions can be applied.
- the device also includes an ozone destructor 207.
- the ozone destroyer 207 is used to process excess ozone generated by the ozone generator 203.
- the beneficial effect is that the ozone generator can be kept open and the air flow is always open, so that the supplied ozone flow and concentration can be maintained in a stable state, and at the same time, excess high-concentration ozone can be avoided from causing safety problems to the equipment and operators.
- the ozone generator 203 is connected to a third pipeline 214 and a fourth pipeline 215 .
- the third pipeline 214 is connected to the second fluid valve 211
- the fourth pipeline 215 is connected to the ozone destroyer 207 .
- the second pipeline 206, the third pipeline 214 and the fourth pipeline 215 have all undergone anti-oxidation treatment.
- the ozone generator is connected to a third pipeline 214, the third pipeline 214 is connected to the second pipeline 206, and a flow meter (not shown) is provided in the third pipeline 214. shown), the flow meter detects the gas flow in the third pipeline; an exhaust pipeline is provided on the second pipeline close to the carrier gas source, and is installed close to the carrier gas source, which can avoid the third pipeline when it is opened.
- the gas flowing into the second pipeline among the three pipelines is discharged.
- the exhaust pipeline includes a flow controller, and the flow controller controls the flow rate of the exhaust pipeline to be the same as the gas flow rate measured by the flow meter.
- the flow difference before and after the carrier gas is introduced into the source bottle is relatively small, and there is no need to set up an additional exhaust structure.
- the flow rate before and after the carrier gas is introduced into the source bottle When the difference is large, a corresponding structure should be set up on the first pipeline to achieve the same flow rate by discharging part of the gas.
- the source bottle is used as the oxygen source in the second pipeline, if the flow difference before and after entering the source bottle is too large, Then the gas discharge pipeline of the second pipeline can be used to control the flow difference, so that the gas flow rate entering the chamber is ultimately kept constant.
- the combined carrier gas source has a switching valve, and the switching valve is used to select to provide the same flow rate of carrier gas to the first pipeline or the second pipeline, so that when performing the ALD reaction, half reaction and half reaction can be performed.
- the gas flow rate introduced in the purge process between reactions is the same, which reduces the changes in air pressure and flow field in the connection of different processes, thereby maintaining constant air pressure and gas flow rate throughout the ALD process, making the reaction process balanced and ensuring The film formation quality and final cell performance are stable.
- the anti-oxidation treatment includes aluminum oxide coating.
- the anti-oxidation treatment includes silicon oxide plating.
- the anti-oxidation treatment may include coating of any other anti-oxidation material.
- the ozone generator 203 is connected to an oxygen source 212 and a nitrogen source 213.
- the nitrogen source 213 is used to adjust the ozone concentration produced by the ozone generator 203.
- the ozone concentration is set to [16, 20]wt%.
- the ozone generator 203 may be connected to an oxygen source 212 and an inert gas source.
- the device also includes a vacuum pump 208.
- the vacuum pump 208 is used to extract gas from the equipment cavity 201 .
- the vacuum pump 208 may be configured as an air pump or other negative pressure device.
- the device also includes an exhaust processor 209 .
- the exhaust gas processor 209 is used to process the gas extracted from the equipment cavity 201.
- the exhaust gas processor 209 is also used to process the gas exhausted by the ozone destroyer 207.
- the equipment cavity 201 is provided with a heater 216, and the heater 216 is used to control the reaction temperature of the equipment cavity 201.
- the equipment cavity 201 is also provided with an auxiliary heat pipe (not shown in the figure).
- the auxiliary heat pipe (not shown in the figure) is used for heating, so that the equipment cavity 201 can quickly
- the auxiliary heat pipe is placed at the top of the inside of the furnace tube.
- the auxiliary heat pipe (not shown in the figure) is opened to allow the equipment cavity 201 to heat up faster, thereby shortening the heating time as much as possible to improve processing efficiency.
- the adjustable temperature range of the heater 216 is from normal temperature to 530 degrees Celsius. It is worth noting that the heater 216 is specifically configured as a heating wire and a temperature detector; the heating wire is arranged in a surrounding shape outside the equipment cavity 201, and the heat generated by the heating wire passes through the equipment cavity. 201 conducts to the substrate in the graphite boat; the temperature detector has an inner couple end, an outer couple end and an electrical end; the inner couple end is located in the equipment cavity 201 for sensing the graphite The temperature of the boat; the outer coupling end is located outside the equipment cavity 201 and is used to sense the temperature of the heating wire; the temperature of the heating wire is controlled through the electrical end to maintain the temperature of the equipment cavity 201 temperature.
- the heater 216 can also be set in any form, as long as the substrate can achieve the required heating temperature and continuous temperature control effect.
- a graphite boat is provided in the equipment cavity 201 .
- the number of graphite boats is N, and N is a positive integer.
- the graphite boat is used to carry the substrate.
- the number of substrates carried by the graphite boat is M, and M is a positive integer.
- FIG. 5 is a schematic structural diagram of another substrate processing equipment provided by an embodiment of the present invention.
- the equipment is also used to perform a tubular plasma enhanced chemical vapor deposition process in the equipment cavity 201 .
- the equipment cavity 201 is provided with 303.
- the equipment cavity 201 is connected to a purge nitrogen source 301, a nitrogen source 213 and a silane source 302 through a pipeline.
- the nitrogen source 213 and the silane source 302 are in one pipe.
- the mixture in the path is transmitted to the equipment cavity 201, and under the action of the electric field applied by power supply 303, tubular plasma enhanced chemical vapor deposition is realized.
- the purge nitrogen gas source 301 is used to purge the equipment cavity 201 when the plasma enhanced chemical vapor deposition reaction ends.
- the equipment can also perform PECVD silicon nitride process.
- Silane and ammonia gas enter the equipment cavity 201 from the first pipeline 205, and the nitrogen source 301 passes through the second pipeline. 206. Inject nitrogen gas into the equipment cavity 201.
- This method avoids the problem that the oxide remaining in the equipment cavity reacts with silane to produce wrong products after the previous alumina process, and also avoids the long process time caused by the long purging of a single air inlet.
- a substrate processing equipment which integrates a first processing unit and a second processing unit;
- the first processing unit includes: a carrier gas source, a first pipeline, the second pipeline, the source bottle, the oxygen source, the first fluid valve, the second fluid valve and the equipment cavity;
- the equipment cavity accommodates the substrate and serves as a reaction site for the substrate
- the first pipeline and the second pipeline are both used to transport carrier gas to the cavity;
- the carrier gas source is used to provide the carrier gas
- the oxygen source is used to provide an oxidant
- the source bottle is used to accommodate a chemical source; when the carrier gas is passed into the source bottle, the carrier gas carries the chemical source into the equipment cavity;
- the first fluid valve is used to control whether the chemical source flows through the first pipeline
- the second fluid valve is used to control whether the oxidant flows through the second pipeline
- the first processing unit and the second processing unit at least share a carrier gas source and an equipment cavity.
- the present invention allows the gas flowing into the chamber to be injected into the vacuum environment from the chamber door end during the entire ALD process, and flow out from the opposite end, wherein an internal inlet chamber is provided downstream of the gas outflow end.
- the gas flow is stable, so that the process gas flow field is a stable advection, which can make the process controllable and improve the quality of the film layer and thus the quality of the product.
- the first processing unit is a thermal ALD processing unit, and at least one gas of the thermal ALD processing unit is pulsed into the equipment cavity;
- the second processing unit is a PECVD processing unit, and the PECVD The gas from the processing unit is introduced into the same equipment cavity in a non-pulsed manner.
- the PECVD processing unit and the thermal ALD processing unit share the carrier gas source and the equipment chamber.
- the vacuum process part of the tubular equipment is a hot-walled quartz tube, in which the heater is a heating wire or heating plate combination with no less than 4 temperature setting intervals.
- the PECVD processing unit and the thermal ALD processing unit share the carrier gas source, the source bottle and the equipment cavity.
- the oxygen source is a gaseous oxygen source or an active plasma oxide.
- the plurality of reaction pipelines independently provide gases required for the process into the chamber.
- the carrier gas source has a switching valve, and the switching valve is used to select to provide the carrier gas with the same flow rate to the first pipeline or the second pipeline, that is,
- the carrier gas source alternately supplies the same flow rate of carrier gas to the same tubular cavity through the switching valve through the first pipeline and the second pipeline, so that the gas can be stably output, thereby allowing the first deposition Layers such as aluminum oxide can be deposited uniformly when pulsed.
- the carrier gas source has a switching valve, and the switching valve is used to select to provide the carrier gas with the same flow rate to the first pipeline or the second pipeline, that is, The carrier gas source passes through the first pipeline and the second pipeline alternately through the switching valve. Continuously supply the same flow rate of carrier gas to the same tubular cavity; when the carrier gas source supplies carrier gas to the tubular cavity through the second pipeline through the switching valve, the gaseous oxygen source (such as an ozone generator ) is connected to the second pipeline through a third pipeline, a flow meter is provided in the third pipeline, and the flow meter detects the gas flow in the third pipeline; the second pipeline is close to the load An exhaust pipeline is provided at the gas source.
- the exhaust pipeline includes a flow controller.
- the flow controller controls the exhaust pipeline to discharge gas from the second pipeline.
- the flow rate of the exhaust gas is the same as that measured by the flow meter.
- the gas flow rate is the same. This embodiment can ensure that the flow rate from the second pipeline into the tubular cavity remains unchanged, so that the same flow rate of gas can be alternately introduced into the same tubular cavity through the first pipeline and the second pipeline, so that The subsequent alternation of the first half-reaction step and the second half-reaction step can allow the gas to be output stably, so that the first deposition layer, such as aluminum oxide, can form a uniform deposition layer when deposited in this pulse manner.
- the first deposition layer such as aluminum oxide
- the first processing unit is a thermal atomic layer deposition processing unit (that is, a thermal ALD processing unit). At least one gas of the thermal atomic layer deposition processing unit is introduced in a pulse manner.
- the equipment cavity is used to form a first deposition layer on the substrate;
- the second processing unit is a plasma enhanced chemical vapor deposition unit (that is, a PECVD processing unit), and the plasma enhanced chemical vapor deposition unit
- the gas is introduced into the same equipment cavity in a non-pulsed manner to further form a second deposition layer different from the first deposition layer on the substrate.
- the substrate processing equipment has a tubular chamber
- the first processing unit is a thermal atomic layer deposition processing unit (that is, a thermal ALD processing unit)
- the thermal atomic layer deposition processing unit has at least one channel of gas pulsed into the tubular cavity to form a first deposition layer on the substrate;
- the second processing unit is equal to Plasma enhanced chemical vapor deposition unit (that is, PECVD processing unit), the gas of the plasma enhanced chemical vapor deposition unit is introduced into the same tubular cavity in a non-pulsed manner to further form on the substrate the same as the first A second, different deposition layer is deposited.
- PECVD processing unit Plasma enhanced chemical vapor deposition unit
- thermal ALD process used in this patent application is different from the PEALD process, which is complicated. This is because the PEALD process involves the control of plasma reactions and the control process is complicated.
- the oxygen source is preferably a gaseous oxygen source.
- the second deposition layer is formed by the plasma enhanced chemical vapor deposition unit in a non-pulse manner, and the first deposition layer is formed by the thermal
- the atomic layer deposition processing unit is formed by entering the equipment cavity in a pulse manner.
- the first deposition layer often cannot be deposited evenly on the substrate, which seriously affects the molding quality of the chip substrate and often leads to unqualified products.
- the present invention provides the following embodiments, as follows:
- the carrier gas source has a switching valve, and the switching valve is used to select to provide the carrier gas with the same flow rate to the first pipeline or the second pipeline.
- the switching valve is used to select to provide the carrier gas with the same flow rate to the first pipeline or the second pipeline.
- the carrier gas source has a switching valve, and the switching valve is used to select to provide carrier gas with the same flow rate to the first pipeline or the second pipeline, that is, the carrier gas source passes through the switching valve.
- the same flow rate of carrier gas is continuously introduced into the same tubular cavity through the first pipeline and the second pipeline alternately; when the gaseous oxygen source (such as an ozone generator) is connected to the second pipeline through the third pipeline Pipeline, a flowmeter is provided in the third pipeline, the flowmeter is used to detect the gas flow in the third pipeline; an exhaust pipe is provided near the carrier gas source on the second pipeline
- the exhaust pipeline includes a flow controller, and the flow controller controls the exhaust pipeline to discharge gas from the second pipeline, so that the flow rate of the exhaust gas in the second pipeline is equal to that in the third pipeline.
- the gas flow rate measured by the flow meter is the same.
- This embodiment can ensure that the flow rate from the second pipeline into the tubular cavity remains unchanged. In this way, it is also possible to alternately pass the first pipeline and the second pipeline to the same tubular cavity.
- the same flow rate of gas is introduced into the body, so that the gas can be stably output when the first half-reaction step and the second half-reaction step alternate, so that the first deposition layer, such as aluminum oxide, can be deposited uniformly when deposited in this pulse mode. layer.
- FIG. 6 is a schematic flowchart of a substrate processing method provided by an embodiment of the present invention.
- the present invention provides a substrate processing method for use in any of the above-mentioned equipment. As shown in Figure 6, the method includes:
- the heater 216 heats the cavity and heats the substrate through heat conduction.
- the carrier gas source 202 fills the device cavity 201 with the carrier gas and performs a pressure maintaining test. Vacuum pump 208 will The gas in the equipment cavity 201 is extracted.
- the carrier gas source continuously supplies the same flow rate of carrier gas to the cavity through the first pipeline or the second pipeline through the switching valve. In this way, this embodiment can ensure that the gas flow rate flowing into the equipment cavity 201 from the second pipeline 206 is the same as the gas flow rate flowing into the equipment cavity 201 from the first pipeline 205 .
- the duration of heating of the substrate by the heater 216 is 5 to 10 minutes, and the duration of the heating depends on the state of the graphite boat and the heating state of the cavity.
- the pressure holding test includes that the equipment cavity 201 meets a pressure change of no more than 3 Pa in 15 seconds.
- the first fluid valve 210 is opened for a period of time t1 and then closed for a period of time t2.
- the carrier gas carries the chemical source and enters the equipment cavity 201 through the first pipeline 205 .
- the carrier gas source 202 purges the carrier gas into the device cavity 201 .
- S403 perform the second reaction step, including: the second fluid valve 211 is opened for t3 and then closed for t4.
- the ozone generator 203 delivers ozone to the equipment cavity 201 through the second pipeline 206 .
- the carrier gas source 202 purges the carrier gas into the device cavity 201 .
- thermal atomic layer deposition is achieved. It improves the conformality of the film on the textured surface of the substrate, and at the same time, avoids damage to the passivation surface, which is conducive to achieving the best passivation effect.
- the pipeline and chamber are purged with carrier gas, and the vacuum pump 208 stops pumping. After the vacuum is broken, the graphite boat moves out of the equipment cavity 201.
- the ozone generator 203 remains normally on, and the excess ozone generated by the ozone generator 203 is processed by the ozone destroyer 207 .
- the carrier gas in the second pipeline is discharged outward through the exhaust pipeline provided near the carrier gas source on the second pipeline, and the flow rate of the exhaust gas is equal to The gas flow rate in the third pipeline is the same.
- the ozone generated by the ozone generator 203 enters the second pipeline 206 through the third pipeline 214, and finally enters the equipment cavity 201.
- the ozone generated by the ozone generator 203 enters the ozone destroyer 207 through the fourth pipeline 215.
- the ozone destroyer 207 destroys most of the ozone and a small part of the ozone. It enters the exhaust gas processor 209 for complete reaction to prevent the ozone from polluting the environment.
- the gas extracted from the equipment cavity 201 by the vacuum pump 208 is passed into the exhaust gas processor 209 .
- the gas discharged from the ozone destroyer 207 flows into the exhaust gas processor 209 .
- the chemical source includes trimethylaluminum.
- the surface of the substrate has a layer of hydroxyl groups that satisfies the following chemical reaction formula: nsurf-OH+Al(CH 3 ) 3 ⁇ surf-O-Al(CH 3 ) 3-n +nCH 4
- n 1 or 2.
- the first reaction step satisfies the following chemical reaction formula: nsurf-AlOH+Al(CH 3 ) 3 ⁇ surf-(nAl)-O-Al(CH 3 ) 3-n +nCH 4
- n takes 1 or 2.
- the second reaction step satisfies the following chemical reaction formula: (3-n)surf-AlCH 3 +(3-n)O 3 ⁇ (3-n)surf-AlCH 2 OH+(3-n)O 2
- n takes 1 or 2.
- the product of the second reaction step satisfies the following chemical reaction formula: 2surf-AlCH 2 OH ⁇ 2surf-AlOH+C 2 H 4 .
- the ozone in the reactants of the second reaction step can be partially or completely replaced by purified water.
- the product obtained at this time still includes surf-AlOH, which does not affect the alternation of the first reaction step and the second reaction step.
- the substrate after the substrate completes the thermal ALD process in the equipment cavity, the substrate continues to undergo the PECVD process in the equipment cavity.
- PECVD processing unit and the thermal ALD processing unit share the carrier gas source and the source bottle.
- the parameters used in the substrate processing method are as shown in Table 1, and the temperature of the equipment cavity 201 at times T1-T6 is set to 200 degrees Celsius.
- the carrier gas source 202 uses argon gas, and the flow value is 2500 standard milliliters per minute.
- the ozone flow value is 3000 standard milliliters per minute, and the concentration is set to 18.5wt%.
- the chemical source uses trimethylaluminum (TriMethylAluminum, TMA).
- TMA trimethylaluminum
- the first fluid valve 210 is opened for 5 seconds and then closed. 7 seconds.
- the second fluid valve 211 is opened for 7 seconds and then closed for 8 seconds.
- the above operation totaling 27 seconds is a cycle.
- each graphite boat is loaded with 56 substrates, and each substrate has a unique location in the graphite boat. After the cycle is performed 500 times, an ellipsometer is used to measure the thickness of the substrate test points.
- the temperature can be set to any temperature between [130, 250] degrees Celsius
- the carrier gas source 202 uses inert gas or other non-reactive gas
- the flow value can be any positive number.
- Ozone flow value and concentration can be set to any positive number.
- the opening and closing times of the first fluid valve 210 and the second fluid valve 211 can be set to any positive number.
- the number of graphite boats can be set to any positive integer.
- the loop can be repeated any positive integer number of times.
- a substrate processing method through which the gas flow in the cavity can be kept constant during the thermal ALD process, thereby achieving the uniformity of the thermal ALD processed film, that is, the present invention
- the substrate processing method of the embodiment uses the substrate processing equipment of the present invention to perform thermal atomic layer deposition on the substrate in the same tubular cavity. (that is, thermal ALD processing) and plasma enhanced chemical vapor deposition processing (that is, PECVD processing), the thermal atomic layer deposition process includes:
- the carrier gas source When the carrier gas source is working, it continues to transmit carrier gas to the equipment cavity through the first pipeline and the second pipeline;
- Carrying out the first half-reaction step includes: opening the first fluid valve for a period of time t1 and then closing it for a period of time t2;
- the carrier gas carries the chemical source through the first pipeline and enters the equipment cavity;
- the carrier gas source purges the carrier gas into the device cavity
- Performing the second half-reaction step includes: opening the second fluid valve for t3 time and then closing it for t4 time;
- the ozone generator delivers ozone to the equipment cavity through the second pipeline
- the carrier gas source purges the carrier gas into the device cavity
- the first reaction step and the second reaction step are carried out alternately several times and then the reaction is stopped.
- the substrate continues to undergo the PECVD process in the same tubular cavity.
- a first deposition layer such as aluminum oxide, silicon oxide, gallium oxide, titanium oxide or other oxides can be formed in the tubular cavity in a pulse manner; and then in the same tubular cavity
- the plasma-enhanced chemical vapor deposition process in the cavity forms a second deposition layer that is different from the first deposition layer in a non-pulse manner, such as silicon nitride.
- the second deposition layer is formed by the plasma enhanced chemical vapor deposition unit passing into the tubular cavity in a non-pulse manner.
- the first deposition layer is formed by the thermal atomic layer deposition processing unit pulsed into the same tubular cavity.
- the first deposition layer often cannot be deposited evenly on the substrate, which seriously affects the quality of the chip substrate. Molding quality, substandard products often appear.
- the present invention provides the following embodiments, as follows:
- the heater heats the substrate; the carrier gas source fills the tubular cavity with the Carrier gas is used to perform a pressure holding test, and a vacuum pump extracts the gas in the tubular cavity.
- the carrier gas source alternately supplies the same flow rate of carrier gas to the tubular cavity through the first pipeline and the second pipeline through a switching valve.
- the flow rate of the carrier gas in the pipeline is the same, so that the same flow rate of carrier gas is alternately introduced into the tubular cavity through the first pipeline and the second pipeline, so that the carrier gas can be used when the first half-reaction step and the second half-reaction step alternate.
- the gas output is stable, so that the first deposition layer such as Aluminum oxide, when deposited in this pulse mode, can form a uniform deposited layer.
- the heater heats the substrate; and the tubular cavity is filled with the carrier gas source.
- the carrier gas is used for a pressure maintaining test, and the vacuum pump extracts the gas in the tubular cavity, wherein the carrier gas source passes through the switching valve through the first pipeline and the second pipeline to the same tubular cavity alternately.
- the cavity continues to flow into the same flow rate of carrier gas; when the carrier gas source flows into the tubular cavity through the second pipeline through the switching valve, the ozone generator is connected to the third pipeline and remains open.
- the ozone generator supplies a first flow rate of ozone to the second pipeline through the third pipeline; a flow meter is provided in the third pipeline, and the flow meter detects the ozone flow rate in the third pipeline ;
- an exhaust pipeline is provided on the second pipeline close to the carrier gas source, and the exhaust pipeline is controlled by the flow controller on the exhaust pipeline to discharge the carrier gas from the second pipeline, so that the second pipeline is discharged
- the flow rate of the carrier gas is the same as the ozone flow rate measured by the flow meter in the third pipeline, thereby ensuring that the flow rate of the carrier gas obtained from the second pipeline and the ozone obtained from the second pipeline through the third pipeline
- the sum of the flow rates is the same as the carrier gas flow rate obtained on the first pipeline.
- the same flow rate of gas can be continuously introduced into the tubular cavity through the first pipeline and the second pipeline alternately, so that the first half reaction Alternating the first step and the second half-reaction step can make the gas output stably, so that the first deposition layer, such as aluminum oxide, can form a uniform deposition layer when deposited in this pulse manner.
- Figure 7 is a schematic diagram of a substrate area division provided by the present invention.
- the thickness of the substrate processed in the above embodiment is tested.
- the substrate test point is selected by dividing the substrate into 9 areas, and the center point of each area is Test point.
- the side length of the substrate is 210 mm.
- the test results are shown in Table 2: By counting the thickness of 9 test points (ThicknessofSEtestingpoint) of the same substrate, it is easy to obtain the mean (Mean), the intra-chip uniformity (WIW) and the average thickness of the substrate increased in each cycle (GPC).
- the chip-to-piece uniformity (WTW) can be obtained by counting the thickness of test points on different substrates.
- the substrate after 500 cycles can achieve intra-chip uniformity in the range of 0-3% and inter-chip uniformity in the range of 0-3.01%.
- the substrate is divided into X regions, where X is a positive integer.
- the diameter of the substrate is any size smaller than the size of the graphite boat.
- FIG. 8 is a box diagram of the minority carrier lifetime of a substrate provided by an embodiment of the present invention
- FIG. 9 is a box diagram of the recessive open circuit voltage of a substrate provided by an embodiment of the present invention.
- the substrate is plated with 15 nm aluminum oxide on both sides through the substrate processing method, and vacuum annealed at 450° C. for 30 minutes.
- the implicit open circuit voltage (ImpliedOpenCircuitVoltage, iVOC) test of the substrate in the 24th and 25th process experiments is shown in Figure 9.
- the average value of the recessive open circuit voltage at each time node is higher than 0.69V, that is, the passivation level before and after the two times is at a relatively high level; it is worth noting that the change in the minority carrier lifetime and the recessive open circuit voltage are positively correlated. trend.
- embodiments of the present invention can perform uniform aluminum oxide deposition on large-size substrates, especially on the textured surface of n-type substrates, which have excellent shape retention and passivation effects. . This ensures the efficient use of light energy by TOPCon batteries. Since the PECVD equipment platform is reused when performing thermal atomic deposition on the substrate in the embodiment of the present invention, it is achieved The same process as aluminum oxide and silicon nitride reduces production costs to a certain extent.
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Abstract
Description
nsurf-OH+Al(CH3)3→surf-O-Al(CH3)3-n+nCH4
nsurf-AlOH+Al(CH3)3→surf-(nAl)-O-Al(CH3)3-n+nCH4
(3-n)surf-AlCH3+(3-n)O3→(3-n)surf-AlCH2OH+(3-n)O2
2surf-AlCH2OH→2surf-AlOH+C2H4.
201、设备腔体;202、载气源;203、臭氧发生器;204、源瓶;
205、第一管路;206、第二管路;207、臭氧破坏器;208、真空泵;209、尾气处理器;210、第一流体阀;211、第二流体阀;212、氧气源;213、氮气源;214、第三管路;215、第四管路;216、加热器;220、气道;221、第一气道;222、第二气道;230、炉口法兰;240、氧源瓶;
301、吹扫氮气源;302、硅烷源;303、电极。
nsurf-OH+Al(CH3)3→surf-O-Al(CH3)3-n+nCH4
nsurf-AlOH+Al(CH3)3→surf-(nAl)-O-Al(CH3)3-n+nCH4
(3-n)surf-AlCH3+(3-n)O3→(3-n)surf-AlCH2OH+(3-n)O2
2surf-AlCH2OH→2surf-AlOH+C2H4.
Claims (21)
- 一种基片处理设备,其特征在于,所述设备集成热ALD处理单元和PECVD处理单元;所述热ALD处理单元包括:载气源、第一管路、第二管路、源瓶、氧源、第一流体阀、第二流体阀和设备腔体;所述设备腔体容纳基片并作为所述基片的反应场所;所述第一管路和所述第二管路均用于向所述腔体传输载气;所述载气源用于提供所述载气;所述氧源用于提供氧化剂;所述源瓶用于容纳化学源;当所述载气通入所述源瓶时,所述载气携带所述化学源进入所述设备腔体;所述第一流体阀用于控制所述化学源是否流经所述第一管路;所述第二流体阀用于控制所述氧化剂是否流经所述第二管路。
- 根据权利要求1所述的设备,其特征在于,所述氧源至少包括两种不同成分的氧化剂,分别与所述第二管路连通。
- 根据权利要求2所述的设备,其特征在于,至少一种氧源是臭氧发生器,至少一种氧源是氧源瓶。
- 根据权利要求3所述的设备,其特征在于,所述臭氧发生器连接有第三管路,所述第三管路与第二管路连通,在所述第三管路中设置有流量计,所述流量计探测所述第三管路中的气体流量;所述第二管路上靠近载气源处设置排气管路,所述排气管路包括流 量控制器,所述流量控制器控制排气管路从第二管路中排出气体,排出气体的流量与所述流量计测得的气体流量相同。
- 根据权利要求1所述的设备,其特征在于,所述源瓶和所述第一管路为并列设置;所述载气流经所述源瓶和所述第一管路中的至少一者。
- 根据权利要求1所述的设备,其特征在于,所述源瓶设有调节部,用于调节进入所述源瓶的气体流量;当所述载气同时流经所述源瓶和所述第一管路时,所述调节部用于调节向源瓶分配气体流量的比例。
- 根据权利要求1-6任一项所述的设备,其特征在于,所述载气源具有转换阀,所述转换阀用于选择向所述第一管路或所述第二管路提供相同流量的载气。
- 根据权利要求1所述的设备,其特征在于,所述设备腔体设有炉口法兰;所述第一管路和所述第二管路均与所述炉口法兰连接;所述炉口法兰设有若干气道,每条所述气道分别用于将所述设备腔体与所述第一管路或所述第二管路连通。
- 根据权利要求3所述的设备,其特征在于,所述设备还包括臭氧破坏器;所述臭氧破坏器用于处理所述臭氧发生器产生的多余臭氧;所述臭氧发生器连接有第三管路和第四管路;所述第三管路与所述第二流体阀连接,所述第四管路与所述臭氧破坏器连接。
- 根据权利要求1-6、8-9任一项所述的设备,其特征在于,各管路均经过防氧化处理。
- 根据权利要求10所述的设备,其特征在于,所述防氧化处理包括进行氧化铝镀层。
- 根据权利要求3所述的设备,其特征在于,所述臭氧发生器连接有氧气源和氮气源;所述氮气源用于控制所述臭氧发生器生产的臭氧浓度;所述臭氧浓度设置为[16,20]wt%。
- 根据权利要求1所述的设备,其特征在于,所述设备腔体设有加热器,所述加热器用于控制所述设备腔体的反应温度。
- 根据权利要求13所述的设备,其特征在于,所述设备腔体还设有辅热管,所述辅热管用于加热,以使所述设备腔体快速的升温。
- 根据权利要求1所述的设备,其特征在于,所述PECVD处理单元与所述热ALD处理单元共用所述载气源和所述源瓶。
- 一种基片处理方法,采用所述权利要求1-15任一项所述的设备,对基片在同一腔室内进行热ALD和PECVD处理,其特征在于,所述热ALD处理包括:所述载气源工作时,持续通过所述第一管路和所述第二管路向所述设备腔体传输载气;进行第一反应步骤,包括:第一流体阀开启t1时长后关闭t2时长;在所述第一流体阀开启时,所述载气携带所述化学源通过所述第一管路进入所述设备腔体;在所述第一流体阀关闭时,所述载气源向所述设备腔体吹扫所述载气;进行第二反应步骤,包括:第二流体阀开启t3时长后关闭t4时长;在所述第二流体阀开启时,臭氧发生器通过所述第二管路向所述设备腔体输送臭氧;在所述第二流体阀关闭时,所述载气源向所述设备腔体吹扫所述载气;所述第一反应步骤和所述第二反应步骤交替进行若干次后停止反应。
- 根据权利要求16所述的方法,其特征在于,当所述基片进入所述设备腔体时,加热器对所述基片加热;所述载气源向所述设备腔体充入所述载气,所述载气源通过转换阀经所述第一管路或所述第二管路向腔体持续通入相同流量载气。
- 根据权利要求16所述的方法,其特征在于,所述臭氧发生器保持开启状态,所述臭氧发生器产生的多余的臭氧 通过臭氧破坏器进行处理。
- 根据权利要求16所述的方法,其特征在于,所述臭氧发生器保持开启状态,通过第三管路向第二管路提供气体时,通过所述第二管路上靠近载气源处设置的排气管路,将第二管路中的载气向外排出,排出气体的流量与第三管路中气体流量相同。
- 根据权利要求18所述的方法,其特征在于,真空泵从所述设备腔体抽出的气体通入尾气处理器;所述臭氧破坏器排出的气体通入尾气处理器。
- 根据权利要求16所述的方法,其特征在于,当所述基片在所述设备腔体完成热ALD工艺结束之后,所述基片在所述设备腔体继续进行PECVD工艺。
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| ES23806984T ES3062096T3 (en) | 2022-05-19 | 2023-05-17 | Substrate treating apparatus and method |
| EP23806984.3A EP4394079B1 (en) | 2022-05-19 | 2023-05-17 | Substrate treating apparatus and method |
| US18/695,828 US20240392438A1 (en) | 2022-05-19 | 2023-05-17 | Substrate treating apparatus and method |
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| US (1) | US20240392438A1 (zh) |
| EP (1) | EP4394079B1 (zh) |
| CN (1) | CN114959649A (zh) |
| ES (1) | ES3062096T3 (zh) |
| WO (1) | WO2023222033A1 (zh) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114959649A (zh) * | 2022-05-19 | 2022-08-30 | 江苏微导纳米科技股份有限公司 | 一种基片处理设备和方法 |
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| CN107119264A (zh) * | 2017-06-14 | 2017-09-01 | 东南大学 | 同腔原位复合沉积铱‑氧化铝高温涂层设备与工艺 |
| CN109423695A (zh) * | 2017-08-31 | 2019-03-05 | 中国科学院苏州纳米技术与纳米仿生研究所 | 掺杂源供应管路及化学气相沉积系统 |
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| CN114959649A (zh) * | 2022-05-19 | 2022-08-30 | 江苏微导纳米科技股份有限公司 | 一种基片处理设备和方法 |
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| US8728239B2 (en) * | 2011-07-29 | 2014-05-20 | Asm America, Inc. | Methods and apparatus for a gas panel with constant gas flow |
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| CN107868944B (zh) * | 2017-10-31 | 2020-02-07 | 北京北方华创微电子装备有限公司 | 一种氮化钛原子层沉积装置及其沉积方法 |
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| CN108149225A (zh) * | 2018-02-06 | 2018-06-12 | 江苏微导纳米装备科技有限公司 | 一种真空反应装置及反应方法 |
| CN109518164A (zh) * | 2018-12-20 | 2019-03-26 | 北京北方华创微电子装备有限公司 | 原子层沉积设备及方法 |
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| CN213146096U (zh) * | 2020-08-06 | 2021-05-07 | 北京北方华创微电子装备有限公司 | 半导体工艺设备的进气装置及半导体工艺设备 |
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- 2022-05-19 CN CN202210547272.8A patent/CN114959649A/zh active Pending
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- 2023-05-17 WO PCT/CN2023/094772 patent/WO2023222033A1/zh not_active Ceased
- 2023-05-17 US US18/695,828 patent/US20240392438A1/en active Pending
- 2023-05-17 EP EP23806984.3A patent/EP4394079B1/en active Active
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| CN114959649A (zh) * | 2022-05-19 | 2022-08-30 | 江苏微导纳米科技股份有限公司 | 一种基片处理设备和方法 |
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| EP4394079A1 (en) | 2024-07-03 |
| EP4394079A4 (en) | 2025-04-30 |
| US20240392438A1 (en) | 2024-11-28 |
| EP4394079C0 (en) | 2026-02-04 |
| ES3062096T3 (en) | 2026-04-08 |
| EP4394079B1 (en) | 2026-02-04 |
| CN114959649A (zh) | 2022-08-30 |
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