Patent Description:
A flat panel display is being used as a display device that replaces a cathode ray tube display due to characteristics such as light weight and thinness. Representative examples of such flat panel display devices include a liquid crystal display device and an organic light emitting display device.

The display device may include a substrate and a plurality of thin films formed on the substrate. The thin films may be formed by a deposition method such as physical vapor deposition ("PVD"), chemical vapor deposition ("CVD"), plasma enhanced chemical vapor deposition ("PECVD"), or the like.

<CIT> relates to a device for depositing a thin film and a method for depositing a composite layer.

<CIT> relates to methods of etching a substrate using an atomic layer deposition apparatus.

<CIT> relates to a substrate processing apparatus.

<CIT> relates to an apparatus and a method of manufacturing a display apparatus.

<CIT> relates to a substrate processing apparatus and a method of manufacturing a semiconductor device.

Embodiments provide a substrate processing apparatus capable of efficient deposition and cleaning.

A substrate processing apparatus according to embodiments of the present invention includes: a chamber providing a space for processing a substrate, a first nozzle unit disposed inside the chamber, a second nozzle unit disposed inside the chamber and adjacent to the first nozzle unit, a remote plasma generator disposed outside the chamber and which is configured to convert a cleaning gas into a plasma state, a common pipe disposed outside the chamber and connected to the remote plasma generator through which the cleaning gas in the plasma state is able to flow from the remote plasma generator, a first connection pipe connecting the common pipe and the first nozzle unit, and in which a first common valve is installed, a second connection pipe connecting the common pipe and the second nozzle unit, and in which a second common valve is installed, a source gas supply pipe connected to the first connection pipe in the outside of the chamber, which is configured to supply a source gas to the first connection pipe, where a first supply valve is installed in the source gas supply pipe, and a reaction gas supply pipe connected to the second connecting pipe in the outside of the chamber, and which is configured to supply a reaction gas to the second connection pipe, where a second supply valve is installed in the reaction gas supply pipe.

In an embodiment, the source gas supply pipe may be connected to the first connection pipe between the first common valve and the first nozzle unit, and the reaction gas supply pipe may be connected to the second connection pipe between the second common valve and the second nozzle unit.

In an embodiment, the first nozzle unit may be configured to discharge the source gas or the cleaning gas in the plasma state, and the second nozzle unit may be configured to discharge the reaction gas or the cleaning gas in the plasma state.

In an embodiment, the substrate processing apparatus may further include: a first exhaust pump connected to the chamber and which is configured to exhaust a gas inside the chamber, and a second exhaust pump connected to the common pipe and which is configured to exhaust a gas inside the common pipe.

In an embodiment, the substrate processing apparatus may further include a first exhaust pipe connecting the chamber and the first exhaust pump, and in which a first exhaust valve is installed, and a second exhaust pipe connecting the common pipe and the second exhaust pump, and in which a second exhaust valve is installed.

In an embodiment, each of the first nozzle unit and the second nozzle unit may include a plasma generator.

In an embodiment, each of the first nozzle unit and the second nozzle unit may be provided in plurality, and the plurality of first nozzles and the plurality of second nozzles may be alternately arranged in one direction.

A substrate processing apparatus according to embodiments of the present invention includes: a chamber providing a space for processing a substrate, a first nozzle unit disposed inside the chamber, a second nozzle unit disposed inside the chamber and adjacent to the first nozzle unit, a remote plasma generator disposed outside the chamber and which is configured to convert a reaction gas or a cleaning gas into a plasma state, a common pipe disposed outside the chamber and connected to the remote plasma generator through which the reaction gas in a plasma state or the cleaning gas in a plasma state is able to flow from the remote plasma generator, a first connection pipe connecting the common pipe and the first nozzle unit, and in which a first common valve is installed, a second connection pipe connecting the common pipe and the second nozzle unit, and in which a second common valve is installed, and a first source gas supply pipe connected to the first connection pipe in the outside of the chamber, and which is configured to supply a first source gas to the first connection pipe, where a first-first supply valve is installed in the first source gas supply pipe.

In an embodiment, the first source gas supply pipe may be connected to the first connection pipe between the first common valve and the first nozzle unit.

In an embodiment, the first nozzle unit may be configured to discharge the first source gas or the cleaning gas in the plasma state to the substrate, and the second nozzle unit may be configured to discharge the reaction gas in the plasma state or the cleaning gas in the plasma state to the substrate.

In an embodiment, the substrate processing apparatus may further include a reaction gas supply pipe connected to the remote plasma generator, and which is configured to supply the reaction gas to the remote plasma generator, where a second supply valve is installed in the reaction gas supply pipe, and a cleaning gas supply pipe connected to the remote plasma generator, and which is configured to supply the cleaning gas to the remote plasma generator, where a third supply valve is installed in the cleaning gas supply pipe.

In an embodiment, the first nozzle unit may include a plasma generator.

In an embodiment, the substrate processing apparatus may further include a first exhaust pump connected to the chamber and which is configured to exhaust a gas inside the chamber, a second exhaust pump connected to the common pipe and which is configured to exhaust a gas inside the common pipe, a first exhaust pipe connecting the chamber and the first exhaust pump, and in which a first exhaust valve is installed, and a second exhaust pipe connecting the common pipe and the second exhaust pump, and in which a second exhaust valve is installed.

In an embodiment, the substrate processing apparatus may further include a third nozzle unit disposed inside the chamber, a third connection pipe connecting the common pipe and the third nozzle unit, and in which a third common valve is installed, and a second source gas supply pipe connected to the third connection pipe in the outside of the chamber, and which is configured to supply a second source gas different from the first source gas to the third connection pipe, where a first-second supply valve is installed in the second source gas supply pipe.

A substrate processing apparatus according to embodiments of the present invention include a remote plasma generator and a common pipe connected to the remote plasma generator. The common pipe is connected to plurality of nozzle units through a plurality of connection pipes. According to the opening and closing of common valves installed in the connection pipes, a cleaning gas converted into a plasma state in the remote plasma generator may be introduced into the nozzle units through the common pipe and the connection pipes and may be discharged into the chamber by the nozzle units. Accordingly, cleaning efficiency inside the chamber may be effectively improved.

In addition, the substrate processing apparatus may include a first exhaust pump connected to the chamber and a second exhaust pump connected to the common pipe. Accordingly, the gas remaining in the common pipe and the connection pipes as well as the inside of the chamber may be sufficiently exhausted. Accordingly, deterioration of the deposition efficiency of a thin film by the residual gas may be effectively prevented or reduced.

Illustrative, non-limiting embodiments will be more clearly understood from the following detailed description in conjunction with the accompanying drawings.

Hereinafter, embodiments of the present disclosure will be explained in detail with reference to the accompanying drawings. The same reference numerals are used for the same components in the drawings, and redundant descriptions of the same components will be omitted.

<FIG> is a diagram schematically illustrating a substrate processing apparatus according to an embodiment. <FIG> is a perspective view of the substrate processing apparatus of <FIG>. <FIG> is a cross-sectional view of the substrate processing apparatus of <FIG>.

Referring to <FIG>, <FIG>, and <FIG>, the substrate processing apparatus <NUM> according to an embodiment of the present invention may include a chamber <NUM>, a substrate support portion <NUM>, a nozzle group <NUM>, a source gas supply portion <NUM>, a reaction gas supply portion <NUM>, a cleaning gas supply portion <NUM>, a remote plasma generator <NUM>, connection pipes <NUM>, source gas supply pipes <NUM>, reaction gas supply pipes <NUM>, common pipe <NUM>, a first exhaust pump <NUM> and a second exhaust pump <NUM>.

The chamber <NUM> provides a space in which a processing process for the substrate S is performed. In an embodiment, the chamber <NUM> may be a chamber for chemical vapor deposition (CVD) or plasma enhanced chemical vapor deposition (PECVD). In another embodiment, the chamber <NUM> may be a chamber for atomic layer deposition ("ALD") or plasma enhanced atomic layer deposition ("PEALD"), or capable of selectively performing the chemical vapor deposition and the atomic layer deposition.

The substrate support portion <NUM> may be disposed inside the chamber <NUM> and may support the substrate S. In an embodiment, the substrate support portion <NUM> may reciprocate in a first direction D1 and in a direction opposite to the first direction D1 in a state in which the substrate S is supported.

The nozzle group <NUM> is disposed inside the chamber <NUM>. The nozzle group <NUM> may discharge or exhaust a gas for forming a thin film on the substrate S. In addition, the nozzle group <NUM> may discharge or exhaust a gas for cleaning the inside of the chamber <NUM>. In an embodiment, the nozzle group <NUM> may be fixed in the chamber <NUM>. In another embodiment, the nozzle group <NUM> may reciprocate in the first direction D1 and in a direction opposite to the first direction D1.

The nozzle group <NUM> may include a plurality of nozzle units and a support portion SP supporting the nozzle units. The nozzle units may be arranged side by side in the first direction D1. The nozzle units may be fixed to the support portion SP.

In an embodiment, the nozzle group <NUM> includes first nozzle portions <NUM> and second nozzle portions <NUM>. For example, the first nozzle portions <NUM> and the second nozzle portions <NUM> may be alternately arranged in the first direction D1. Although <FIG> shows that the nozzle group <NUM> includes four first nozzle portions <NUM> and five second nozzle portions <NUM>, this is an example and the present invention is not limited thereto. In another embodiment, for example, the nozzle group <NUM> may include one to three or five or more first nozzle portions <NUM> and one to four or six or more second nozzle portions <NUM>.

The first nozzle portions <NUM> and the second nozzle portions <NUM> are connected to the connection pipes <NUM>, respectively. For example, the first nozzle portions <NUM> may be connected one-to-one with first connection pipes <NUM>, and the second nozzle portions <NUM> may be connected one-to-one with second connection pipes <NUM>.

As shown in <FIG>, each of the first nozzle portions <NUM> may include a first nozzle unit NU1 and a first exhaust portion EP1. The first nozzle unit NU1 may include a first nozzle N1 and a first plasma generator PF <NUM>.

In an embodiment, the first nozzle N1 may be provided in a plurality. The plurality of first nozzles N1 may be connected to the first connection pipe <NUM>. The first nozzles N1 may discharge a source gas SG or a cleaning gas CG introduced through the first connection pipe <NUM>. Although the first nozzle unit NU1 is illustrated as including two first nozzles N1 in <FIG>, this is an example and the present invention is not limited thereto. In another embodiment, for example, the first nozzle unit NU1 may include three or more first nozzles N1.

The first plasma generator PF1 may convert the source gas SG discharged from the first nozzles N1 into a plasma state. That is, the first plasma generator PF1 may convert the source gas SG discharged from the first nozzles N1 into a radical form. The first plasma generator PF1 may be disposed to correspond to the first nozzle unit NU1 and may include an electrode.

The first exhaust potion EP1 may be disposed outside the first nozzle unit NU1. The first exhaust portion EP1 may exhaust gas. For example, the first exhaust portion EP1 may be disposed to surround the first nozzle unit NU1.

Each of the second nozzle portions <NUM> may include a second nozzle unit NU2 and a second exhaust portion EP2. The second nozzle unit NU2 may include a second nozzle N2 and a second plasma generator PF2.

In an embodiment, the second nozzle N2 may be provided in a plurality. The plurality of second nozzles N2 may be connected to the second connection pipe <NUM>. The second nozzles N2 may discharge a reaction gas RG or the cleaning gas CG introduced through the second connection pipe <NUM>.

The second plasma generator PF2 may convert the reaction gas RG discharged from the second nozzles N2 into a plasma state. That is, the second plasma generator PF2 may convert the reaction gas RG discharged from the second nozzles N2 into a radical form. The second plasma generator PF2 may be disposed to correspond to the second nozzle unit NU2 and may include an electrode.

The second exhaust portion EP2 may be disposed outside the second nozzle unit NU2. The second exhaust portion EP2 may exhaust a gas. For example, the second exhaust portion EP2 may be disposed to surround the second nozzle unit NU2.

In an embodiment, the first nozzle units NU1 and the second nozzle units NU2 may be alternately arranged in the first direction D <NUM>. That is, each of the second nozzle units NU2 may be adjacent to one or two of the first nozzle units NU1. For example, the first nozzle units NU1 may be connected one-to-one to the first connection pipes <NUM>, and the second nozzle units NU2 may be connected to one-to-one to the second connection pipes <NUM>.

The first connection pipes <NUM> connect the first nozzle units NU1 and the common pipe <NUM>, respectively. A first common valve <NUM> that can be opened and closed is installed in each of the first connection pipes <NUM>. For example, the first common valve <NUM> may be installed adjacent to the common pipe <NUM>.

The second connection pipes <NUM> connect the second nozzle units NU2 and the common pipe <NUM>, respectively. A second common valve <NUM> that can be opened and closed is installed in each of the second connection pipes <NUM>. For example, the second common valve <NUM> may be installed adjacent to the common pipe <NUM>.

The source gas supply portion <NUM> may be disposed outside the chamber <NUM>. The source gas supply portion <NUM> may be connected to the first connection pipes <NUM> through the source gas supply pipes <NUM>. The source gas supply portion <NUM> may supply the source gas SG to the first nozzle units NU1 through the source gas supply pipes <NUM> and the first connection pipes <NUM>. For example, the source gas SG may include SiH<NUM>, SiF<NUM>, SiH<NUM>Cl<NUM>, Si<NUM>H<NUM>, or the like, but these are examples, and the present invention is not limited thereto.

The source gas supply pipes <NUM> may connect the source gas supply portion <NUM> and the first connection pipes <NUM>, respectively. The source gas supply pipes <NUM> are connected to the first connection pipes <NUM>, respectively, in the outside of the chamber <NUM>. A first supply valve <NUM> that can be opened and closed is installed in each of the source gas supply pipes <NUM>.

In an embodiment, each of the source gas supply pipes <NUM> may be connected to the first connection pipe <NUM> between the first common valve <NUM> and the first nozzle unit NU1. For example, the first common valve <NUM> may be installed to a front end of the first connection pipe <NUM> so as to be adjacent to the common pipe <NUM>. The source gas supply pipe <NUM> may be connected to a rear end of the first connection pipe <NUM> so as to be adjacent to the first nozzle unit NU1.

The reaction gas supply portion <NUM> may be disposed outside the chamber <NUM>. The reaction gas supply portion <NUM> may be connected to the second connection pipes <NUM> through the reaction gas supply pipes <NUM>. The reaction gas supply portion <NUM> may supply the reaction gas RG to the second nozzle units NU2 through the reaction gas supply pipes <NUM> and the second connection pipes <NUM>. For example, the reaction gas RG may include N<NUM>, O<NUM>, H<NUM>, NH<NUM>, or the like, but these are examples and the present invention is not limited thereto.

The reaction gas supply pipes <NUM> may connect the reaction gas supply portion <NUM> and the second connection pipes <NUM>, respectively. The reaction gas supply pipes <NUM> are respectively connected to the second connection pipes <NUM> outside the chamber <NUM>. The second supply valve <NUM> that can be opened and closed is installed in each of the reaction gas supply pipes <NUM>.

In an embodiment, each of the reaction gas supply pipes <NUM> may be connected to the second connection pipe <NUM> between the second common valve <NUM> and the second nozzle unit NU2. For example, the second common valve <NUM> may be installed at a front end of the second connection pipe <NUM> so as to be adjacent to the common pipe <NUM>. The reaction gas supply pipe <NUM> may be connected to a rear end of the second connection pipe <NUM> so as to be adjacent to the second nozzle unit NU2.

The cleaning gas supply portion <NUM> may be disposed outside the chamber <NUM>. The cleaning gas supply portion <NUM> may supply the cleaning gas CG to the remote plasma generator <NUM> through the cleaning gas supply pipe <NUM>. A third supply valve (not shown) that can be opened and closed may be installed in the cleaning gas supply pipe <NUM>. For example, the cleaning gas CG may include NF<NUM>, CF<NUM>, C<NUM>F<NUM>, or the like, but these are examples and the present invention is not limited thereto.

The remote plasma generator <NUM> is disposed outside the chamber <NUM>. The remote plasma generator <NUM> converts the cleaning gas CG introduced from the cleaning gas supply portion <NUM> into a plasma state. That is, the remote plasma generator <NUM> converts the cleaning gas CG introduced from the cleaning gas supply portion <NUM> into a radical form. For example, when the cleaning gas CG is NF<NUM>, the cleaning gas CG may be ionized into radicals such as NF<NUM>, NF, F, and N by the remote plasma generator <NUM> to be in a plasma state.

The remote plasma generator <NUM> supplies the cleaning gas CGr in a plasma state (i.e., ionized cleaning gas CGr) to the first nozzle units NU1 and the second nozzle units NU2 through the common pipe <NUM> and the connection pipes <NUM>. A radical of the cleaning gas CGr in the plasma state discharged from the first nozzle units NU1 and the second nozzle units NU2 reacts with by-product inside the chamber <NUM> to convert the by-product into a gaseous state, and as the gaseous by-product is exhausted, cleaning of the inside of the chamber <NUM> may proceed. That is, unlike the source gas SG converted into a plasma state by the first plasma generator PF1 and the reaction gas RG converted into a plasma state by the second plasma generator PF2, the cleaning gas CG may be supplied to the first nozzle units NU1 and the second nozzle units NU2 as the cleaning gas CGr in a plasma state to be discharged. Accordingly, cleaning efficiency inside the chamber <NUM> may be improved.

The common pipe <NUM> is disposed outside the chamber <NUM>. The common pipe <NUM> is connected to the remote plasma generator <NUM> and the connection pipes <NUM>. The common pipe <NUM> transfers the cleaning gas CGr in a plasma state introduced from the remote plasma generator <NUM> to the first nozzle units NU1 and the second nozzle units NU2 through the connection pipes <NUM>.

In an embodiment, the remote plasma generator <NUM> and the common pipe <NUM> may be disposed adjacent to the chamber <NUM>. In addition, the common pipe <NUM> may have a relatively large diameter. For example, the common pipe <NUM> may have a larger diameter than the source gas supply pipes <NUM> or the reaction gas supply pipes <NUM>. Accordingly, while the cleaning gas CGr in a plasma state moves to the first nozzle units NU1 and the second nozzle units NU2 through the common pipe <NUM> and the connection pipes <NUM>, it may be possible to prevent or reduce the plasma state being lost and converted to a stable state. Accordingly, cleaning efficiency inside the chamber <NUM> may be improved.

In an embodiment, as shown in <FIG>, the common pipe <NUM> may include a first pipe <NUM>, a second pipe <NUM>, and a third pipe <NUM>.

The first pipe <NUM> may be connected to the remote plasma generator <NUM>. For example, the first pipe <NUM> may extend in a second direction D2 crossing the first direction D1.

The second pipe <NUM> may be connected to the first pipe <NUM>. In an embodiment, the two second pipes <NUM> may be respectively connected to both ends of the first pipe <NUM>. The second pipes <NUM> may extend in the first direction D1.

The third pipe <NUM> may be connected to the second pipe <NUM>. In an embodiment, the two third pipes <NUM> may be connected to the two second pipes <NUM>, respectively. The third pipes <NUM> may extend in the first direction D1. The first connection pipes <NUM> and the second connection pipes <NUM> alternately arranged in the first direction D1 may be connected to the third pipes <NUM>. For example, as shown in <FIG>, the first connection pipes <NUM> and the first common valves <NUM> may be connected to any one of the third pipes <NUM>, and the second connection pipes <NUM> and the second common valves <NUM> may be connected to the other one of the third pipes <NUM>.

For example, the second pipes <NUM> may be connected to a central portion of the third pipes <NUM>. Accordingly, the cleaning gas CGr in a plasma state introduced from the remote plasma generator <NUM> may be evenly transferred to the first connection pipe <NUM> and the second connection pipe <NUM>.

However, a shape of the common pipe <NUM> shown in <FIG> is an example, and the present invention is not limited thereto. In another embodiment, for example, the common pipe <NUM> may be configured as a single pipe connected to the remote plasma generator <NUM> and extending in the first direction D1.

The first exhaust pump <NUM> may be connected to the chamber <NUM> through a first exhaust pipe <NUM>. A first exhaust valve <NUM> that can be opened and closed may be installed in the first exhaust pipe <NUM>. The first exhaust pump <NUM> may exhaust a gas inside the chamber <NUM>.

The second exhaust pump <NUM> may be connected to the common pipe <NUM> through a second exhaust pipe <NUM>. A second exhaust valve <NUM> that can be opened and closed may be installed in the second exhaust pipe <NUM>. The second exhaust pump <NUM> may exhaust a gas inside the common pipe <NUM>. In a state in which the first common valve <NUM> and the second common valve <NUM> are opened, the second exhaust pump <NUM> may further exhaust a gas inside the connection pipes <NUM>.

<FIG>, <FIG>, and <FIG> are cross-sectional views for explaining an operation of the substrate processing apparatus of <FIG>. For example, <FIG> shows a thin film deposition process on the substrate S, <FIG> shows a cleaning process inside the chamber <NUM>, and <FIG> shows an exhaust process after the cleaning.

Referring to <FIG> and <FIG>, the first supply valves <NUM> installed in the source gas supply pipes <NUM> may be opened. Accordingly, the source gas SG may be introduced from the source gas supply portion <NUM> into the first nozzle units NU1 through the source gas supply pipes <NUM> and the first connection pipes <NUM>. The first nozzle units NU1 may discharge the source gas SG. For example, the source gas SG discharged from the first nozzles N1 may be converted into a plasma state by the first plasma generator PF1. In this case, the first common valves <NUM> installed in the first connection pipes <NUM> may be in a closed state. Accordingly, the cleaning gas CGr in a plasma state from the common pipe <NUM> may not flow into the first connection pipes <NUM>.

In addition, the second supply valves <NUM> installed in the reaction gas supply pipes <NUM> may be opened. Accordingly, the reaction gas RG may be introduced from the reaction gas supply portion <NUM> into the second nozzle units NU2 through the reaction gas supply pipes <NUM> and the second connection pipes <NUM>. The second nozzle units NU2 may discharge the reaction gas RG. For example, the reaction gas RG discharged from the second nozzles N2 may be converted into a plasma state by the second plasma generator PF2. In this case, the second common valves <NUM> installed in the second connection pipes <NUM> may be in a closed state. Accordingly, the cleaning gas CGr in a plasma state from the common pipe <NUM> may not flow into the second connection pipes <NUM>.

A thin film may be formed on the substrate S by reacting the source gas SGr discharged from the first nozzles N1 and converted into a plasma state, and the reaction gas RGr discharged from the second nozzles N2 and converted into a plasma state. For example, as the first nozzle portions <NUM> and the second nozzle portions <NUM> are alternately arranged in the first direction D1, and the substrate support portion <NUM> moves in the first direction D1, a plurality of thin films may be sequentially formed on the substrate S.

In an embodiment, for example, when the source gas SG includes SiH<NUM> and the reaction gas RG includes N<NUM>, a silicon nitride film may be formed on the substrate S. As another example, when the source gas SG includes SiH<NUM> and the reaction gas RG includes O<NUM>, a silicon oxide film may be formed on the substrate S. As still another example, when the source gas SG includes hexamethyldisiloxane ("HMDSO") and the reaction gas RG includes N<NUM> or Hz, after an organic film is formed on the substrate S, the organic film may be cured. However, this is an example, and the present invention is not limited thereto.

Referring to <FIG> and <FIG>, in order to clean the inside of the chamber <NUM> after the thin film is deposited on the substrate S, the first supply valves <NUM> installed in the source gas supply pipes <NUM> may be closed. Accordingly, the source gas SG from the source gas supply portion <NUM> may not flow into the first connection pipes <NUM>. In addition, the first common valves <NUM> installed in the first connection pipes <NUM> may be opened. Accordingly, the cleaning gas CGr in a plasma state may be introduced from the remote plasma generator <NUM> into the first nozzle units NU1 through the common pipe <NUM> and the first connection pipes <NUM>. The first nozzles N1 may discharge the cleaning gas CGr in a plasma state.

In addition, the second supply valves <NUM> installed in the reaction gas supply pipes <NUM> may be closed. Accordingly, the reaction gas RG from the reaction gas supply portion <NUM> may not flow into the second connection pipes <NUM>. In addition, the second common valves <NUM> installed in the second connection pipes <NUM> may be opened. Accordingly, the cleaning gas CGr in a plasma state may be introduced into the second nozzle units NU2 from the remote plasma generator <NUM> through the common pipe <NUM> and the second connection pipes <NUM>. The second nozzles N2 may discharge the cleaning gas CGr in a plasma state.

A radical of the cleaning gas CGr in a plasma state discharged from the first nozzles N1 and the second nozzles N2 react with by-product inside the chamber <NUM> to convert the by-product into a gaseous state, and as the gaseous by-product is exhausted, the inside of the chamber <NUM> may be cleaned.

Referring to <FIG> and <FIG>, in order to exhaust gas (e.g., the cleaning gas CG, or the like) and the by-product remaining in the chamber <NUM> after the inside of the chamber <NUM> is cleaned, the first exhaust valve <NUM> installed in the first exhaust pipe <NUM> may be opened. Accordingly, the first exhaust pump <NUM> connected to the chamber <NUM> through the first exhaust pipe <NUM> may exhaust the gas and the by-product remaining in the chamber <NUM>.

In addition, in order to exhaust the gas (e.g., the cleaning gas CG, or the like) remaining in the common pipe <NUM> and the connection pipes <NUM>, the second exhaust valve <NUM> installed in the second exhaust pipe <NUM> may be opened. In this case, the first common valves <NUM> installed in the first connection pipes <NUM> and the second common valves <NUM> installed in the second connection pipes <NUM> may be in an open state. Accordingly, the second exhaust pump <NUM> connected to the common pipe <NUM> through the second exhaust pipe <NUM> may effectively exhaust the gas remaining in the common pipe <NUM> and the connection pipes <NUM>. Accordingly, it may be possible to prevent or reduce the effect of the cleaning gas CG remaining in the connection pipes <NUM> on a subsequent deposition process. Accordingly, the deposition efficiency of the thin film may be improved.

In an embodiment, the first exhaust valve <NUM> and the second exhaust valve <NUM> may be sequentially opened and closed. For example, in a state in which the second exhaust valve <NUM> is closed, the first exhaust valve <NUM> may be opened first. After the gas and the by-product remaining in the chamber <NUM> are sufficiently exhausted by the first exhaust pump <NUM>, the first exhaust valve <NUM> may be closed and the second exhaust valve <NUM> may be opened. Accordingly, the gas remaining in the common pipe <NUM> and the connection pipes <NUM> by the second exhaust pump <NUM> may be effectively exhausted.

In another embodiment, the first exhaust valve <NUM> and the second exhaust valve <NUM> may simultaneously open and close.

After the chamber <NUM> and the common pipe <NUM> are sufficiently exhausted by the first exhaust pump <NUM> and the second exhaust pump <NUM>, the first exhaust valve <NUM> and the second exhaust valve <NUM> may be closed. Subsequently, as the first common valves <NUM> and the second common valves <NUM> are closed, and the first supply valves <NUM> and the second supply valves <NUM> are opened, the thin film deposition on the substrate S of <FIG> may be repeated.

<FIG> is a diagram schematically illustrating a substrate processing apparatus according to another embodiment.

Hereinafter, the substrate processing apparatus <NUM> according to another embodiment will be described with a focus on the differences from the substrate processing apparatus <NUM> according to the embodiment described with reference to <FIG>, and the repeated description will be omitted or simplified.

Referring to <FIG>, a chamber <NUM> provides a space in which a processing process for a substrate S is performed. A substrate support portion <NUM> may be disposed inside the chamber <NUM> and may support the substrate S. A nozzle group <NUM> is disposed inside the chamber <NUM>. The nozzle group <NUM> may include first nozzle portions <NUM> and second nozzle portions <NUM> alternately arranged in the first direction D1.

The first nozzle portions <NUM> and the second nozzle portions <NUM> are connected to connection pipes <NUM>, respectively. As shown in <FIG>, each of the first nozzle portions <NUM> may include a first nozzle unit NU1 and a first exhaust portion EP1. In an embodiment, the first nozzle unit NU1 may include a first nozzle N1 and a first plasma generator PF1.

Each of the second nozzle portions <NUM> may include a second nozzle unit NU2 and a second exhaust portion EP2. In an embodiment, the second nozzle unit NU2 may include the second nozzle N2 and may not include a separate plasma generator.

The first connection pipes <NUM> connect the first nozzle units NU1 and a common pipe <NUM>, respectively. A first common valve <NUM> that can be opened and closed is installed in each of the first connection pipes <NUM>. For example, the first common valve <NUM> may be installed adjacent to the common pipe <NUM>.

The second connection pipes <NUM> connect the second nozzle units NU2 and the common pipe <NUM>, respectively. A second common valve <NUM> that can be opened and closed is installed in each of the second connection pipes <NUM>. For example, the second common valve <NUM> may be installed adjacent to the common pipe <NUM>. In an embodiment, the second common valve <NUM> may be omitted.

A source gas supply portion <NUM> may be disposed outside the chamber <NUM>. The source gas supply portion <NUM> may be connected to the first connection pipes <NUM> through source gas supply pipes <NUM>. The source gas supply portion <NUM> may supply the source gas SG to the first nozzle units NU1 through the source gas supply pipes <NUM> and the first connection pipes <NUM>.

The source gas supply pipes <NUM> may connect the source gas supply portion <NUM> and the first connection pipes <NUM>, respectively. The source gas supply pipes <NUM> are respectively connected to the first connection pipes <NUM> outside the chamber <NUM>. A first supply valve <NUM> that can be opened and closed is installed in each of the source gas supply pipes <NUM>. In an embodiment, each of the source gas supply pipes <NUM> may be connected to the first connection pipe <NUM> between the first common valve <NUM> and the first nozzle unit NU1.

A reaction gas supply portion <NUM> may be disposed outside the chamber <NUM>. The reaction gas supply portion <NUM> may supply the reaction gas RG to a remote plasma generator <NUM> through the reaction gas supply pipe <NUM>. A second supply valve <NUM> that can be opened and closed may be installed in the reaction gas supply pipe <NUM>.

A cleaning gas supply portion <NUM> may be disposed outside the chamber <NUM>. The cleaning gas supply portion <NUM> may supply the cleaning gas CG to the remote plasma generator <NUM> through cleaning gas supply pipe <NUM>. A third supply valve <NUM> that can be opened and closed may be installed in the cleaning gas supply pipe <NUM>.

The second supply valve <NUM> and the third supply valve <NUM> may not be simultaneously opened. That is, the reaction gas RG and the cleaning gas CG may not be simultaneously introduced into the remote plasma generator <NUM>.

In an embodiment, for example, in a state in which the second supply valve <NUM> is opened and the third supply valve <NUM> is closed, the reaction gas RG may be introduced into the remote plasma generator <NUM>. In a state in which the second supply valve <NUM> is closed and the third supply valve <NUM> is opened, the cleaning gas CG may be introduced into the remote plasma generator <NUM>. In a state in which both the second supply valve <NUM> and the third supply valve <NUM> are closed, a gas may not flow into the remote plasma generator <NUM>.

The remote plasma generator <NUM> is disposed outside the chamber <NUM>. The remote plasma generator <NUM> converts the reaction gas RG introduced from the reaction gas supply portion <NUM> or the cleaning gas CG introduced from the cleaning gas supply portion <NUM> into a plasma state.

In the present embodiment, unlike the substrate processing apparatus <NUM> of <FIG>, during the deposition process on the substrate S, the reaction gas RG may be introduced into the first nozzle units NU1 and the second nozzle unit NU2 as the reaction gas RGr in a plasma state to be discharged.

In an embodiment, for example, when the reaction gas RG is N<NUM>, a relatively large power may be desirable to convert the reaction gas RG into a plasma state. At this time, as in the substrate processing apparatus <NUM> of <FIG>, when the reaction gas RG discharged from the second nozzles N2 is converted into a plasma state using the second plasma generator PF2, plasma control may not be easy.

However, according to the present embodiment, the remote plasma generator <NUM> converts the reaction gas RG to a plasma state, and supplies the reaction gas RGr in the plasma state to the first nozzle units NU1 and the second nozzle units NU2. Accordingly, plasma control may be facilitated even in the reaction gas RG, which requires a relatively large power to change the plasma state. In addition, according to an embodiment, as shown in <FIG>, the second nozzle units NU2 may not include a separate plasma generator. Accordingly, the nozzle group <NUM> may include a relatively large number of the first nozzle portions <NUM> and the second nozzle portions <NUM>.

The common pipe <NUM> is disposed outside the chamber <NUM>. The common pipe <NUM> is connected to the remote plasma generator <NUM> and the connection pipes <NUM>. The common pipe <NUM> transfers the reaction gas RGr in a plasma state (i.e., ionized reaction gas RGr) to the second nozzle units NU2 through the second connection pipes <NUM> or may transfer the cleaning gas CGr in a plasma state to the first nozzle units NU1 and the second nozzle unit NU2 through the connection pipes <NUM>.

In an embodiment, the remote plasma generator <NUM> and the common pipe <NUM> may be disposed adjacent to the chamber <NUM>. In addition, the common pipe <NUM> may have a relatively large diameter. For example, the common pipe <NUM> may have a larger diameter than the source gas supply pipes <NUM> or the reaction gas supply pipes <NUM>. Accordingly, it may be possible to prevent or reduce the plasma state of the reaction gas RGr being lost and converted to a stable state (e.g., a state that does not react with the source gas SG) while the reaction gas RGr in the plasma state moves to the second nozzle units NU2 through the common pipe <NUM> and the second connection pipes <NUM>. In addition, it may be possible to prevent or reduce the plasma state of the cleaning gas CGr being lost and converted to a stable state (e.g., a state that does not react with the by-product) while the cleaning gas CGr in a plasma state moves to the first nozzle units NU1 and the second nozzle units NU2 through the common pipe <NUM> and the connection pipes <NUM>.

A first exhaust pump <NUM> may be connected to the chamber <NUM> through a first exhaust pipe <NUM>. The first exhaust pump <NUM> may exhaust a gas inside the chamber <NUM>. A second exhaust pump <NUM> may be connected to the common pipe <NUM> through a second exhaust pipe <NUM>. The second exhaust pump <NUM> may exhaust a gas inside the common pipe <NUM>.

<FIG> and <FIG> are cross-sectional views for explaining an operation of the substrate processing apparatus of <FIG>. For example, <FIG> may correspond to <FIG>, and <FIG> may correspond to <FIG>. For example, <FIG> shows a thin film deposition process on the substrate S, and <FIG> shows a cleaning process inside the chamber <NUM>.

Referring to <FIG> and <FIG>, the first supply valves <NUM> installed in the source gas supply pipes <NUM> may be opened. Accordingly, the source gas SG may be introduced from the source gas supply portion <NUM> into the first nozzle units NU1 through the source gas supply pipes <NUM> and the first connection pipes <NUM>. The first nozzle units NU1 may discharge the source gas SG. For example, the source gas SG discharged from the first nozzles N1 may be converted into a plasma state by the first plasma generator PF <NUM>. In this case, the first common valves <NUM> installed in the first connection pipes <NUM> may be in a closed state. Accordingly, the reaction gas RGr in a plasma state from the common pipe <NUM> may not flow into the first connection pipes <NUM>.

In addition, the second supply valve <NUM> installed in the reaction gas supply pipe <NUM> may be opened, and the third supply valve <NUM> installed in the cleaning gas supply pipe <NUM> may be closed. Accordingly, the reaction gas RG may be introduced into the remote plasma generator <NUM> from the reaction gas supply portion <NUM>.

In addition, the second common valves <NUM> installed in the second connection pipes <NUM> may be opened. Accordingly, the reaction gas RGr converted into a plasma state in the remote plasma generator <NUM> may be introduced into the second nozzle units NU2 through the common pipe <NUM> and the second connection pipes <NUM>. The second nozzle units NU2 may discharge the reaction gas RGr in a plasma state.

A thin film may be formed on the substrate S by reacting the source gas SGr discharged from the first nozzles N1 and converted into a plasma state, and the reaction gas RGr in a plasma state discharged from the second nozzles N2. For example, as the first nozzle portions <NUM> and the second nozzle portions <NUM> are alternately arranged in the first direction D1 and the substrate support portion <NUM> reciprocates in the first direction D1, a plurality of thin films may be sequentially formed on the substrate S.

In an embodiment, for example, when the source gas SG includes SiH<NUM> and the reaction gas RG includes N<NUM>, a silicon nitride film may be formed on the substrate S. As another example, when the source gas SG includes SiH<NUM> and the reaction gas RG includes O<NUM>, a silicon oxide film may be formed on the substrate S. As still another example, when the source gas SG includes hexamethyldisiloxane (HMDSO) and the reaction gas RG includes N<NUM> or Hz, after an organic film is formed on the substrate S, the organic film may be cured immediately. However, this is an example, and the present invention is not limited thereto.

Referring to <FIG> and <FIG>, in order to clean the inside of the chamber <NUM> after the thin film is deposited on the substrate S, the first supply valves <NUM> installed in the source gas supply pipes <NUM> may be closed. Accordingly, the source gas SG from the source gas supply portion <NUM> may not flow into the first connection pipes <NUM>.

In addition, the second supply valve <NUM> installed in the reaction gas supply pipe <NUM> may be closed, and the third supply valve <NUM> installed in the cleaning gas supply pipe <NUM> may be opened. Accordingly, the cleaning gas CG may be introduced into the remote plasma generator <NUM> from the cleaning gas supply portion <NUM>.

In addition, the first common valves <NUM> installed in the first connection pipes <NUM> and the second common valves <NUM> installed in the second connection pipes <NUM> may be opened. Accordingly, the ionized cleaning gas CGr converted from the remote plasma generator <NUM> into a plasma state may be introduced to the first nozzle units NU1 and the second nozzle units NU2 through the common pipe <NUM> and the connection pipes <NUM>. The first nozzles N1 and the second nozzles N2 may discharge the cleaning gas CGr in a plasma state.

A radical of the cleaning gas CGr in a plasma state discharged from the first nozzles N1 and the second nozzles N2 react with by-product inside the chamber <NUM> to convert the by-product into a gaseous state, and as the gaseous by-product is exhausted, cleaning of the inside of the chamber <NUM> may proceed.

An exhaust process after the cleaning of the inside of the chamber <NUM> is performed may be substantially the same as or similar to that described with reference to <FIG> and <FIG>.

<FIG> is a diagram schematically illustrating a substrate processing apparatus according to still another embodiment.

Hereinafter, the substrate processing apparatus <NUM> according to another embodiment will be described with a focus on the differences from the substrate processing apparatus <NUM> according to an embodiment described with reference to <FIG>, <FIG>, and <FIG> and the substrate processing apparatus <NUM> according to another embodiment described with reference to <FIG>, and repeated descriptions will be omitted or simplified.

Referring to <FIG>, a chamber <NUM> provides a space in which a processing process for a substrate S is performed. The substrate support portion <NUM> may be disposed inside the chamber <NUM> and may support the substrate S. A nozzle group <NUM> is disposed inside the chamber <NUM>.

In an embodiment, the nozzle group <NUM> may include first-first nozzle portions 121a, first-second nozzle portions 121b, first-third nozzle portions 121c, and second nozzle portions <NUM>. For example, the first-first nozzle portions 121a, the first-second nozzle portions 121b, and the first-third nozzle portions 121c may be nozzle portions each receiving first, second, and third source gases SG1, SG2, and SG3 from first, second, and third source gas supply portions <NUM>, <NUM>, and <NUM>. The second nozzle portion <NUM> may be nozzle units receiving a reaction gas RG from a reaction gas supply portion <NUM>. For example, the first to third source gases SG1, SG2, and SG3 may be different source gases respectively reacting with the reaction gas RG. However, this is an example and the present invention is not limited thereto. In another embodiment, for example, the first, second, and third source gases SG1, SG2, and SG3 may be different source gases respectively reacting with the reaction gas RG. However, this is an example and the present invention is not limited thereto.

In an embodiment, for example, as shown in <FIG>, the first-first nozzle portion 121a, the second nozzle portion <NUM>, the first-first nozzle portion 121a, the first-second nozzle portion 121b, the second nozzle portion <NUM>, the first-second nozzle portion 121b, the first-third nozzle portion 121c, the second nozzle portion <NUM>, and the first-third nozzle portion 121c may be arranged side by side in the first direction D1.

The first-first nozzle portions 121a may be respectively connected to first-first connection pipes 311a. As shown in <FIG>, each of the first-first nozzle portions 121a may include a first-first nozzle unit NU1a and a first-first exhaust portion EP1a. In an embodiment, the first-first nozzle unit NU1a may include a first-first nozzle N1a and a first-first plasma generator PF1a.

The first-second nozzle portions 121b may be respectively connected to first-second connection pipes 311b. As shown in <FIG>, each of the first-second nozzle portions 121b may include a first-second nozzle unit NUlb and a first-second exhaust portion EP1b. In an embodiment, the first-second nozzle unit NU1b may include a first-second nozzle N1b and a first-second plasma generator PF1b.

The first-third nozzle portions 121c may be respectively connected to first-third connection pipes 311c. As shown in <FIG>, each of the first-third nozzle portions 121c may include a first-third nozzle unit NU1c and a first-third exhaust portion EPIc. In an embodiment, the first-third nozzle unit NU1c may include a first-third nozzle N1c and a first-third plasma generator PF1c.

The second nozzle portions <NUM> may be respectively connected to the second connection pipes <NUM>. As shown in <FIG>, each of second nozzle portions <NUM> may include a second nozzle unit NU2 and a second exhaust portion EP2. In an embodiment, the second nozzle unit NU2 may include a second nozzle N2 and may not include a separate plasma generator.

The first-first connection pipes 311a may connect the first-first nozzle units NU1a and a common pipe <NUM>, respectively. The first-second connection pipes 311b may connect the first-second nozzle units NU1b and the common pipe <NUM>, respectively. The first-third connection pipes 311c may connect the first-third nozzle units NU1c and the common pipe <NUM>, respectively. A first common valve <NUM> that can be opened and closed may be installed in each of the first-first connection pipes 311a, the first-second connection pipes 311b, and the first-third connection pipes 311c. For example, the first common valve <NUM> may be installed adjacent to the common pipe <NUM>.

The second connection pipes <NUM> may connect the second nozzle units NU2 and the common pipe <NUM>, respectively. A second common valve <NUM> that can be opened and closed may be installed in each of the second connection pipes <NUM>. For example, the second common valve <NUM> may be installed adjacent to the common pipe <NUM>. In an embodiment, the second common valve <NUM> may be omitted.

The first source gas supply portion <NUM> may be disposed outside the chamber <NUM>. The first source gas supply portion <NUM> may be connected to the first-first connection pipes 311a through first source gas supply pipes <NUM>. The first source gas supply portion <NUM> may supply the first source gas SG1 to the first-first nozzle units NU1a through the first source gas supply pipes <NUM> and the first-first connection pipes 311a.

The second source gas supply portion <NUM> may be disposed outside the chamber <NUM>. The second source gas supply portion <NUM> may be connected to the first-second connection pipes 311b through second source gas supply pipes <NUM>. The second source gas supply portion <NUM> may supply the second source gas SG2 to the first-second nozzle units NUlb through the second source gas supply pipes <NUM> and the first-second connection pipes 311b.

The third source gas supply portion <NUM> may be disposed outside the chamber <NUM>. The third source gas supply portion <NUM> may be connected to the first-third connection pipes 311c through third source gas supply pipes <NUM>. The third source gas supply portion <NUM> may supply the third source gas SG3 to the first-third nozzle units NU1c through the third source gas supply pipes <NUM> and the first-third connection pipes 311c.

The first source gas supply pipes <NUM> may connect the first source gas supply portion <NUM> and the first-first connection pipes 311a, respectively. The first source gas supply pipes <NUM> may be respectively connected to the first-first connection pipes 311a outside the chamber <NUM>. A first-first supply valve <NUM> that can be opened and closed may be installed in each of the first source gas supply pipes <NUM>. In an embodiment, each of the first source gas supply pipes <NUM> may be connected to the first-first connection pipe 311a between the first common valve <NUM> and the first-first nozzle unit NU1a.

The second source gas supply pipes <NUM> may connect the second source gas supply portion <NUM> and the first-second connection pipes 311b, respectively. The second source gas supply pipes <NUM> may be respectively connected to the first-second connection pipes 311b outside the chamber <NUM>. A first-second supply valve <NUM> that can be opened and closed may be installed in each of the second source gas supply pipes <NUM>. In an embodiment, each of the second source gas supply pipes <NUM> may be connected to the first-second connection pipe 311b between the first common valve <NUM> and the first-second nozzle unit NU1b.

The third source gas supply pipes <NUM> may connect the third source gas supply portion <NUM> and the first-third connection pipes 311c, respectively. The third source gas supply pipes <NUM> may be respectively connected to the first-third connection pipes 311c outside the chamber <NUM>. A first-third supply valve <NUM> that can be opened and closed may be installed in each of the third source gas supply pipes <NUM>. In an embodiment, each of the third source gas supply pipes <NUM> may be connected to the first-third connection pipes 311c between the first common valve <NUM> and the first-third nozzle unit NU1c.

The configuration of the reaction gas supply portion <NUM>, the cleaning gas supply portion <NUM>, the remote plasma generator <NUM>, the common pipe <NUM>, the first exhaust pump <NUM>, and the second exhaust pump <NUM> may be substantially the same as or similar to those described with reference to <FIG>.

Referring to <FIG> and <FIG>, the first-first supply valves <NUM> installed in the first source gas supply pipes <NUM> may be opened. Accordingly, the first source gas SG1 may be introduced from the first source gas supply portion <NUM> to the first-first nozzle units NU1a through the first source gas supply pipes <NUM> and the first-first connection pipes 311a. The first-first nozzle units NU1a may discharge the first source gas SG1. For example, the first source gas SG1 discharged from the first-first nozzles N1a may be converted into a plasma state by the first-first plasma generator PF1a.

The first-second supply valves <NUM> installed in the second source gas supply pipes <NUM> may be opened. Accordingly, the second source gas SG2 may be introduced from the second source gas supply portion <NUM> to the first-second nozzle units NUlb through the second source gas supply pipes <NUM> and the first-second connection pipes 311b. The first-second nozzle units NUlb may discharge the second source gas SG2. For example, the second source gas SG2 discharged from the first-second nozzles N1b may be converted into a plasma state by the first-second plasma generator PF1b.

The first-third supply valves <NUM> installed in the third source gas supply pipes <NUM> may be opened. Accordingly, the third source gas SG3 may be introduced from the third source gas supply portion <NUM> to the first-third nozzle units NU1c through the third source gas supply pipes <NUM> and the first-third connection pipes 311c. The first-third nozzle units NU1c may discharge the third source gas SG3. For example, the third source gas SG3 discharged from the first-third nozzles N1c may be converted into a plasma state by the first-third plasma generator PF1c.

At this time, the first common valves <NUM> installed in the first-first connection pipes 311a, the first-second connection pipes 311b, and the first-third connection pipes 311c may be in a closed state. Accordingly, the reaction gas RGr in a plasma state from the common pipe <NUM> may not flow into the first-first connection pipes 311a, the first-second connection pipes 311b, and the first-third connection pipes 311c.

In addition, a second supply valve <NUM> installed in a reaction gas supply pipe <NUM> may be opened, and a third supply valve <NUM> installed in a cleaning gas supply pipe <NUM> may be closed. Accordingly, the reaction gas RG may be introduced into the remote plasma generator <NUM> from the reaction gas supply portion <NUM>.

The first source gas SG1r discharged from the first-first nozzles N1a and converted into a plasma state and the reaction gas RGr in a plasma state discharged from the second nozzles N2 may react to form a first thin film on the substrate S. In addition, the second source gas SG2r discharged from the first-second nozzles N1b and converted into a plasma state and the reaction gas RGr in a plasma state discharged from the second nozzles N2 may react to from a second thin film on the substrate S. In addition, the third source gas SG3r discharged from the first-third nozzles N1c and converted to a plasma state and the reaction gas RGr in a plasma state discharged from the second nozzles N2 may react to from a third thin film on the substrate S. For example, as the substrate support portion <NUM> moves in the first direction D1, the first, second, and third thin films may be sequentially formed on the substrate S.

Referring to <FIG> and <FIG>, in order to clean the inside of the chamber <NUM> after the thin film is deposited on the substrate S, the first-first supply valves <NUM> installed in the first source gas supply pipes <NUM>, the first-second supply valves <NUM> installed in the second source gas supply pipes <NUM>, and the first-third supply valves <NUM> installed in the third source gas supply pipes <NUM> may be closed. Accordingly, the first, second, and third source gases SG1, SG2, and SG3 from the first, second, and third source gas supply portions <NUM>, <NUM> and <NUM> may not flow into the first-first, first-second, and first-third connection pipes 311a, 311b, and 311c.

In addition, the first common valves <NUM> installed in the first-first connection pipes 311a, the first-second connection pipes 311b, and the first-third connection pipes 311c, and the second common valves <NUM> installed in the second connection pipes <NUM> may be opened. Accordingly, the cleaning gas CGr converted into a plasma state in the remote plasma generator <NUM> may be introduced into the first-first nozzle unit NU1a, the first-second nozzle units NU1b, the first-third nozzle units NU1c, and the second nozzle units NU2 through the common pipe <NUM> and the connection pipes <NUM>. The first-first nozzles N1a, the first-second nozzles N1b, the first-third nozzles N1c, and the second nozzles N2 may discharge the cleaning gas CGr in a plasma state.

A radical of the cleaning gas CGr in a plasma state emitted from the first-first nozzles N1a, the first-second nozzles N1b, the first-third nozzles N1c, and the second nozzles N2 reacts with by-product inside the chamber <NUM> to convert the by-product in a gaseous state, and as the by-product in a gaseous state is exhausted, cleaning of the inside of the chamber <NUM> may proceed.

The present invention can be applied to various substrate processing apparatuses. For example, the present invention is applicable to a manufacturing apparatus of various display devices, such as display devices for vehicles, ships and aircraft, portable communication devices, display devices for exhibition or information transmission, medical display devices, or the like.

Claim 1:
A substrate processing apparatus (<NUM>) comprising:
a chamber (<NUM>) providing a space for processing a substrate (S);
a first nozzle unit (NU1) disposed inside the chamber (<NUM>);
a second nozzle unit (NU2) disposed inside the chamber (<NUM>) and adjacent to the first nozzle unit (NU1);
a remote plasma generator (<NUM>) disposed outside the chamber (<NUM>) and which is configured to convert a cleaning gas (CG) into a plasma state;
a common pipe (<NUM>) disposed outside the chamber (<NUM>) and connected to the remote plasma generator (<NUM>) through which the cleaning gas in the plasma state (CGr) is able to flow from the remote plasma generator (<NUM>);
a first connection pipe (<NUM>) connecting the common pipe (<NUM>) and the first nozzle unit (NU1), and in which a first common valve (<NUM>) is installed;
a second connection pipe (<NUM>) connecting the common pipe (<NUM>) and the second nozzle unit (NU2), and in which a second common valve (<NUM>) is installed;
a source gas supply pipe (<NUM>) connected to the first connection pipe (<NUM>) in an outside of the chamber (<NUM>), and which is configured to supply a source gas (SG) to the first connection pipe (<NUM>), wherein a first supply valve (<NUM>) is installed in the source gas supply pipe (<NUM>); and
a reaction gas supply pipe (<NUM>) connected to the second connecting pipe (<NUM>) in the outside of the chamber (<NUM>), and which is configured to supply a reaction gas (RG) to the second connection pipe (<NUM>), wherein a second supply valve (<NUM>) is installed in the reaction gas supply pipe (<NUM>).