Patent Publication Number: US-2023145538-A1

Title: Support unit, and apparatus for treating substrate with the same

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     A claim for priority under 35 U.S.C. § 119 is made to Korean Patent Application No. 10-2021-0154360 filed on Nov. 11, 2021, in the Korean Intellectual Property Office, the entire contents of which are hereby incorporated by reference. 
     BACKGROUND 
     Embodiments of the inventive concept described herein relate to a support unit, and a substrate treating apparatus with the same, more specifically, an apparatus for treating a substrate using a plasma. 
     Plasma refers to an ionized gas state including ions, electrons, radicals, and the like. The plasma is generated by a very high temperature, strong electric fields, or radio frequency (RF) electromagnetic fields. A semiconductor device manufacturing process includes an ashing process or an etching process of removing a film on a substrate using the plasma. The ashing process or the etching process is performed by colliding or reacting ions and radical particles contained in the plasma with a film on the substrate. The process of treating the substrate using the plasma is performed in various ways. 
     Among substrate treating methods of treating the substrate using the plasma, a bevel etch process generates the plasma in an edge region of the substrate to remove a thin film on the edge region of the substrate. Since the thin film on the edge region of the substrate is removed by targeting the plasma, it is important that the substrate is stably supported at a process position. 
     In order for the substrate to be stably supported at the process position, a structural stability of a lift pin that moves the substrate up and down is essential. If the lift pin does not have a stable fastening structure, a vibration generated in the lift pin during an up/down movement of the substrate by the lift pin is transmitted to the substrate, thereby breaking an equilibrium of the substrate. In addition, even when the substrate is supported by a support unit while maintaining an equilibrium, it must be stably fixed on the support unit. When the substrate is not fixed at the support unit and its position changes, it is difficult to efficiently remove the thin film on the edge area of the substrate. 
     SUMMARY 
     Embodiments of the inventive concept provide a support unit capable of stably fixing a substrate and a substrate treating apparatus including the same. 
     Embodiments of the inventive concept provide a support unit capable of stably lifting/lowering a substrate and a substrate treating apparatus including the same. 
     Embodiments of the inventive concept provide a support unit having a high durability by minimizing a deformation by a plasma and a substrate treating apparatus including the same. 
     The technical objectives of the inventive concept are not limited to the above-mentioned ones, and the other unmentioned technical objects will become apparent to those skilled in the art from the following description. 
     The inventive concept provides a substrate treating apparatus. The substrate treating apparatus includes a housing having a treating space; a support unit configured to support a substrate and disposed within the treating space; a dielectric plate disposed over the supporting unit and opposing a top surface of the substrate supported by the support unit; a gas supply unit configured to supply a process gas to an edge region of the substrate; and a plasma source configured to generate a plasma by exciting the process gas at the edge region of the substrate, wherein the plasma source comprises: a top edge electrode disposed above the edge region of the substrate supported by the support unit; and a bottom edge electrode disposed below the edge region of the substrate supported by the support unit, the support unit comprises: a support plate having an inner space therein and having a vacuum hole on a top surface thereon, the vacuum hole being in communication with the inner space and sucking the substrate placed on the top surface of the support plate; a lift pin assembly configured to transfer the substrate between an outside transfer unit and the support plate; and a decompression unit configured to apply a negative pressure to the inner space, the lift pin assembly comprises: a base plate located in the inner space and having a through hole, the through hole penetrating the base plate to provide the negative pressure in a region under the base plate to a region over the base plate in the inner space; a plurality of lift pins upwardly protruding from the base plate and supporting a bottom surface of the substrate; and a driver configured to lift/lower the base plate within the inner space. 
     In an embodiment, the vacuum hole comprises a pin hole through which the lift pin moves upwardly and/or downwardly. 
     In an embodiment, the vacuum hole further comprises a penetration hole spaced apart from the pin hole. 
     In an embodiment, the inner space is formed in a shape corresponding to the base plate when seen from above. 
     In an embodiment, the base plate comprises: a central part connected to the driver; and a plurality of bar-shaped body parts, each body part radially extending from the central part, and wherein the lift pin and the through hole are formed at the body part. 
     In an embodiment, the lift pin assembly comprises: a bottom holder coupled with the base plate and fixing a bottom end of the lift pin; and a top holder engaged with a top of the bottom holder and fixing the bottom holder and the lift pin. 
     In an embodiment, the bottom holder and the top holder are provided as an elastic material. 
     In an embodiment, the bottom holder and the top holder are provided as a conductive material. 
     In an embodiment, the bottom holder and the top holder are provided as an electrostatic dissipation material. 
     In an embodiment, the bottom holder and the top holder are provided as an antistatic material. 
     In an embodiment, the lift pin is provided as an insulation material. 
     The inventive concept provides a substrate treating apparatus. The substrate treating apparatus includes a housing having a treating space; a support unit configured to support a substrate and disposed within the housing; a gas supply unit configured to supply a process gas to the treating space; and a plasma source configured to generate a plasma from the process gas, wherein the support unit comprises: a support plate having an inner buffer space therein and having a vacuum hole on a top surface thereon, the vacuum hole being in communication with the inner space and sucking the substrate placed on the top surface of the support plate; a lift pin assembly configured to transfer the substrate between an outside transfer unit and the support plate; and a decompression unit configured to apply a negative pressure to the buffer space, and the lift pin assembly comprises: a base plate located in the buffer space and having a through hole, the through hole penetrating the base plate to provide the negative pressure in a region under the base plate to a region over the base plate in the inner space; a plurality of lift pins upwardly protruding from the base plate and supporting a bottom surface of the substrate; and a driver configured to lift/lower the base plate within the buffer space. 
     In an embodiment, the vacuum hole comprises a pin hole through which the lift pin moves upwardly and/or downwardly. 
     In an embodiment, the vacuum hole further comprises a through hole placed apart from the pin hole. 
     In an embodiment, the buffer space is formed in a shape corresponding to the base plate when viewed from above. 
     In an embodiment, the base plate comprises: a central part connected to the driver; and a plurality of bar-shaped body part radially extending from the central part, and wherein the lift pin and the through hole are formed at the body part. 
     In an embodiment, the lift pin assembly comprises: a bottom holder coupled with the base plate and fixing a bottom end of the lift pin; and a top holder engaged with a top of the bottom holder, and fixing the bottom holder and the lift pin. 
     In an embodiment, the bottom holder and the top holder are provided as a material that suppresses a generation of static electricity, and the lift pin is provided as an insulation material. 
     The inventive concept provides a support unit supporting a substrate. The support unit includes a support plate having an inner space therein and having a vacuum hole on a top surface thereon, the vacuum hole being in communication with the inner space and sucking the substrate placed on the top surface of the support plate; a lift pin assembly configured to transfer a substrate between an outside transfer unit and the support plate; and a decompression unit configured to apply a negative pressure to the inner space, the lift pin assembly comprises: a base plate located in the inner space and having a through hole, the through hole penetrating the base plate to provide the negative pressure in a region under the base plate to a region over the base plate in the inner space; a plurality of lift pins upwardly protruding from the base plate and supporting a bottom surface of the substrate; and a driver configured to lift/lower the base plate within the inner space. 
     In an embodiment, the vacuum hole comprises: a pin hole through which the lift pin moves upwardly and/or downwardly; and a through hole placed apart from the pin hole. 
     In an embodiment, the inner space is formed in a shape corresponding to the base plate when seen from above. 
     In an embodiment, wherein the base plate comprises: a central part connected to the driver; and a plurality of bar-shaped body part, each body part radially extending from the central part, and wherein the lift pin and the through hole are formed at the body part. 
     In an embodiment, the lift pin assembly comprises: a bottom holder coupled with the base plate and fixing a bottom end of the lift pin; and a top holder engaged with a top of the bottom holder, and fixing a bottom holder and the lift pin. 
     In an embodiment, the bottom holder and the top holder are provided in a material that suppresses a generation of static electricity, and the lift pin is provided in an insulation material. 
     According to an embodiment of the inventive concept, a substrate may be efficiently treated. 
     According to an embodiment of the inventive concept, a substrate may be stably fixed. 
     According to an embodiment of the inventive concept, a substrate may be stably lifted/lowered. 
     According to an embodiment of the inventive concept, it is possible to minimize a deformation of a lift pin assembly by a plasma. 
     The effects of the inventive concept are not limited to the above-described effects, and effects not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other objects and features will become apparent from the following description with reference to the following figures, wherein like reference numerals refer to like parts throughout the various figures unless otherwise specified, and wherein: 
         FIG.  1    is a view schematically illustrating an embodiment of a substrate treating apparatus according to an embodiment of the inventive concept. 
         FIG.  2    is a view schematically illustrating an embodiment of the process chamber of  FIG.  1    of the inventive concept. 
         FIG.  3    is a view schematically illustrating a state in which a base plate of  FIG.  2    is viewed from above. 
         FIG.  4    and  FIG.  5    are perspective views schematically showing a fixing member of  FIG.  2   . 
         FIG.  6    is a view schematically showing a lift pin assembly of  FIG.  2    when viewed from a front. 
         FIG.  7    is a view schematically illustrating a state in which a decompression unit of  FIG.  2    applies a negative pressure to an inner space. 
         FIG.  8    is a view schematically illustrating an enlarged view of a pin hole when the decompression unit of  FIG.  7    applies a negative pressure to an inner space. 
         FIG.  9    is a view schematically illustrating an embodiment of performing a plasma treating process in the process chamber of  FIG.  2   . 
     
    
    
     DETAILED DESCRIPTION 
     Hereinafter, exemplary embodiments of the inventive concept will be described in more detail with reference to the accompanying drawings. The embodiments of the inventive concept may be modified in various forms, and the scope of the inventive concept should not be construed to be limited to the following embodiments. The embodiments of the inventive concept are provided to describe the inventive concept for those skilled in the art more completely. Accordingly, the shapes of the components of the drawings are exaggerated to emphasize clearer description thereof. 
     Hereinafter, an embodiment of the inventive concept will be described in detail referring to  FIG.  1    to  FIG.  9   . 
       FIG.  1    is a view schematically illustrating a substrate treating apparatus according to an embodiment of the inventive concept. Referring to  FIG.  1   , a substrate treating apparatus  1  has an equipment front end module (EFEM)  20  and a treating module  30 . The equipment front end module  20  and the treating module  30  are disposed in a direction. Hereafter, the direction in which the equipment front end module  20  and the treating module  30  are arranged will be referred to as a first direction  11 , and a direction that is perpendicular to the first direction  11  when viewed from above will be referred to as a second direction  12 . 
     The equipment front end module  20  has a load port  10  and a transfer frame  21 . The load port  10  is disposed in front of the equipment front end module  20 . For example, the load port  10  and the equipment front end module  20  are disposed in the first direction  11 . The load port  10  has a plurality of supports  6 . The supports  6  are disposed along the second direction  12 . At each of the supports  6 , carriers  4  (for example, cassettes or FOUPs) storing a substrate W to be treated and a substrate W which has been treated is mounted. The substrate W to be treated and a substrate W which has been treated is stored at the carrier  4 . 
     The transfer frame  21  is disposed between the load port  10  and the treating module  30 . The transfer frame  21  includes a first transfer robot  25  disposed in the interior thereof and configured to transfer a substrate W between the load port  10  and the treating module  30 . The first transfer robot  25  moves along a transfer rail  27  provided in the second direction  12  and transfers the substrate W between the carrier  4  and the treating module  30 . 
     The treating module  30  includes a load lock chamber  40 , a transfer chamber  50 , and a process chamber  60 . The treating module  30  may treat a substrate transferred from the equipment front end module  20 . 
     The load lock chamber  40  is disposed adjacent to the transfer frame  21 . As an example, the load lock chamber  40  may be disposed between the transfer chamber  50  and the equipment front end module  20 . The load lock chamber  40  provides a space in which a substrate W, which is to be treated, stands by before the substrate W is transferred to the process chamber  60  or before the substrate W which has been treated is transferred to the equipment front end module  20 . 
     The transfer chamber  50  transfers the substrate W. For example, the transfer chamber  50  may transfer the substrate W between the load lock chamber  40  and the process chamber  60 . The transfer chamber  50  is disposed adjacent to the load lock chamber  40 . The transfer chamber  50  may have a polygonal body when viewed from above. For example, the transfer chamber  50  may have a pentagonal body when viewed from above. The load lock chamber  40  and a plurality of process chambers  60  may be disposed along a circumference of the body outside the body. For example, as shown in  FIG.  1   , when the transfer chamber  50  has a pentagonal body, load lock chambers  40  may be disposed on sidewalls adjacent to the equipment front end module  20 , and process chambers  60  may be continuously disposed at the other sidewalls. However, unlike the above description, a shape of the transfer chamber  50  is not limited thereto, and may be modified into various shapes according to a required process module. 
     A passage (not shown) through which the substrate W enters and exits may be formed on each sidewall of the body. The passage (not shown) connects the load lock chamber  40  to the transfer chamber  50  or the process chambers  60 . A door (not shown) for opening and closing the passage (not shown) to seal an inside thereof is provided in each passage (not shown). 
     A second transfer robot  53  for transferring the substrate W between the load lock chamber  40  and the process chambers  60  is disposed in the inner space of the transfer chamber  50 . The second transfer robot  53  transfers an untreated substrate W waiting in the load lock chamber  40  to the process chamber  60 , or transfers a substrate W which has been treated in the process chamber  60  to the load lock chamber  40 . In addition, the substrate W is transferred between the process chambers  60  to sequentially provide the substrate W to the plurality of process chambers  60 . 
     The process chamber  60  may be disposed adjacent to the transfer chamber  50 . The process chamber  60  may be disposed along a circumference of the transfer chamber  50 . A plurality of process chambers  60  may be provided. In each process chamber  60 , the treating process of the substrate W is performed. The process chamber  60  takes over the substrate W from the second transfer robot  53  to perform the treating process, and transfers the substrate Won which the treating process is completed to the second transfer robot  53 . The treating process performed in each process chamber  60  may be different from each other. 
     Hereinafter, a process chamber  60  performing a plasma treating process among process chambers  60  will be described in detail. For example, the process chamber  60  for performing the plasma treating process may etch or ash a film material on the substrate W. The film material may be various types of films such as a polysilicon film, an oxide film, and a silicon nitride film. In some embodiments, the film material may be a natural oxide film or a chemically produced oxide film. In some embodiments, the film material may be a film made of a by-product generated during the treating process of the substrate W. In some embodiments, the film material may be a film made of an impurity attached and/or remaining on the substrate W. 
     In addition, a process chamber  60  configured to perform the plasma treating process on the edge region of the substrate W in the process chamber  60  of the substrate treating apparatus  1  described below will be described as an example. However, the inventive concept is not limited thereto, and the process chamber  60  of the substrate treating apparatus  1  described below may be applied equally or similarly to various process chambers  60  in which the substrate W is processed. 
       FIG.  2    is a view schematically illustrating an embodiment of the process chamber of  FIG.  1    of the inventive concept. Referring to  FIG.  2   , the process chamber  60  may perform the plasma treating process on the substrate W. For example, the process chamber  60  may supply a process gas and generate a plasma from the supplied process gas to treat the substrate W. The process chamber  60  may supply the process gas and generate the plasma from the supplied process gas to treat the edge region of the substrate W. Hereinafter, a bevel etching apparatus for performing the etching treatment on the edge region of the substrate Win the process chamber  60  according to an embodiment of the inventive concept will be described as an example. 
     The process chamber  60  may include a housing  100 , a support unit  200 , a dielectric plate unit  300 , a top electrode unit  400 , a temperature control unit  500 , and a gas supply unit  600 . 
     The housing  100  has a treating space  102  in which the substrate W is treated. An opening  104  may be formed at a sidewall of the housing  100 . The substrate W may be taken into the treating space  102  inside the housing  100  through the opening  104  or may be taken out from the treating space  102 . The opening  104  may be opened or closed by an opening/closing member such as a door (not shown). When the opening  104  is closed by the door (not shown), the treating space  102  may be isolated from the outside. In addition, an atmosphere of the treating space  102  may be formed at a low pressure close to a vacuum after being isolated from the outside. 
     The housing  100  may be made of a material including a metal. A surface of the housing  100  may be coated with an insulation material. The housing  100  may be grounded. 
     According to an embodiment, the housing  100  may be a vacuum chamber. For example, an exhaust hole  106  may be formed at the bottom surface of the housing  100 . The plasma P generated in the treating space  102  and/or gases G 1  and G 2  supplied to the treating space  102  may be exhausted to an outside of the housing  100  through the exhaust hole  106 . In addition, process by-products or the like generated in the process of treating the substrate W using the plasma P may be discharged to the outside of the housing  100  through the exhaust hole  106 . The exhaust hole  106  may be connected to the exhaust line  108 . The exhaust line  108  may be connected to a negative pressure member (not shown) providing negative pressure. The negative pressure member (not shown) may provide the negative pressure to the treating space  102  through the exhaust line  108  and the exhaust hole  106 . 
     The support unit  200  supports the substrate W in the treating space  102 . The support unit  200  may include a support plate  210 , a power supply member  220 , an insulation ring  230 , a bottom edge electrode  240 , a lift pin assembly  250 , a decompression unit  260 , and a driving member  270 . 
     The support plate  210  supports the substrate Win the treating space  102 . A support surface for supporting the substrate W may be formed on a top surface of the support plate  210 . When viewed from above, the support plate  210  may have a substantially circular shape. According to an example, the support plate  210  may have a diameter relatively smaller than that of the substrate W when viewed from above. Accordingly, a central region of the substrate W supported by the support plate  210  may be mounted on a support surface of the support plate  210 , and the edge region of the substrate W may not contact the support surface of the support plate  210 . 
     An inner space  211  may be formed inside the support plate  210 . The lift pin assembly  250  to be described later may be disposed in the inner space  211 . A shape of the inner space  211  may be formed to correspond to the shape of the base plate  252  to be described later when viewed from above. In addition, a decompression unit  260  to be described later may be connected to the inner space  211 . 
     A vacuum hole H may be formed in the support plate  210 . The vacuum hole H functions as a passage through which the negative pressure applied from the decompression unit  260  to be described later is transmitted to the substrate W. In an embodiment, the vacuum hole H may transfer a negative pressure applied from the decompression unit  260  to a bottom surface of the substrate W to fixedly suck the substrate W to the support plate  210 . The vacuum hole H may be formed to communicate with the inner space  211  from the top surface of the support plate  210 . The vacuum hole H is formed not to overlap a cooling channel  212  to be described later and a heating device (not shown) located inside the support plate  210 . 
     The vacuum hole H may include a pin hole H 1  and a through hole H 2 . The pin hole H 1  functions as a passage through which a lift pin  255  to be described later moves up and down. A diameter of the pin hole H 1  may be provided larger than a diameter of the lift pin  255 . 
     The through hole H 2  functions as a passage through which the negative pressure applied to the inner space  211  is transmitted to the substrate W. The through hole H 2  is formed at a position that does not overlap the pin hole H 1 . For example, when viewed from above, the through hole H 2  may be disposed at a position spaced apart from the pin hole H 1 . Although  FIG.  2    shows that the through hole H 2  is formed closer to a center than the pin hole H 1 , the inventive concept is not limited thereto. The through hole H 2  may be formed further to the center than the pin hole H 1 . 
     A heating device (not shown) may be provided within the support plate  210 . The heating device (not shown) may heat the support plate  210 . For example, the heating device may be a heater. According to an example, the heater may be formed in a coil shape inside the support plate  210 . However, the inventive concept is not limited thereto, and the arrangement and shape of the heaters may be variously modified and provided. 
     A cooling channel  212  may be formed inside the support plate  210 . The cooling channel  212  may cool the support plate  210 . The cooling channel  212  may cool the support plate  210 , thereby adjusting a temperature of the substrate W supported by the support plate  210 . The cooling channel  212  may be connected to a fluid supply line  214  and a fluid discharge line  216 . The fluid supply line  214  may be connected to the fluid supply source  218 . The fluid supply source  218  may store a cooling fluid. In addition, the fluid supply source  218  may supply the cooling fluid to the fluid supply line  214 . The cooling fluid stored and/or supplied by the fluid supply source  218  may be a cooling water. In some embodiments, the cooling fluid stored and/or supplied by the fluid supply source  218  may be a cooling gas. The fluid discharge line  216  may discharge the cooling fluid supplied to the cooling channel  212  to an outside of the housing  100 . 
     A shape of the cooling channel  212  formed in the support plate  210  is not limited to the shape shown in  FIG.  2   , and may be modified into various shapes. In addition, a configuration of cooling the support plate  210  is not limited to supplying a cooling fluid, and may be provided in various configurations (e.g., a cooling plate) capable of cooling the support plate  210 . 
     The power supply member  220  may supply a high frequency power to the support plate  210 . The power supply member  220 , the bottom edge electrode  240  to be described later, and the top edge electrode  420  to be described later may function as a plasma source that generates a plasma in the edge region of the substrate W by exciting a process gas. The power supply member  220  may supply an RF power to the support plate  210 . The power member  220  may include a power source  222 , a matching device  224 , and a power line  226 . The power source  222  may be bias power. In addition, the power source  222  may be an RF power. The power source  222  may be connected to the support plate  210  via the power line  226 . The matcher  224  may be provided to the power line  226  to perform an impedance matching. 
     The insulation ring  230  may have a ring shape when viewed from above. The insulation ring  230  may be provided to surround an outer periphery of the support plate  210  when viewed from above. In an embodiment, the insulation ring  230  may be made of a material having insulating properties. 
     The bottom edge electrode  240  may function as a plasma source. For example, the bottom edge electrode  240  may be a plasma source that generates the plasma by exciting the process gas supplied to the edge region of the substrate W. 
     The bottom edge electrode  240  may be provided in a ring shape when viewed from above. The bottom edge electrode  240  may be provided to surround an outer periphery of the insulation ring  230  when viewed from above. The bottom edge electrode  240  may be grounded. According to an embodiment of the inventive concept, the bottom edge electrode  240  may be disposed below the edge region of the substrate W. When viewed from above, the bottom edge electrode  240  may be disposed in the edge region of the substrate W supported by the support plate  210 . The edge area of the substrate W may be an area overlapping an outer circumference of the substrate W when viewed from above. In some embodiments, the edge area of the substrate W may be an area that does not overlap the outer circumference of the substrate W when viewed from above. The bottom edge electrode  240  may be disposed below the substrate W when viewed from the front. 
       FIG.  3    is a view schematically illustrating a state in which a base plate of  FIG.  2    is viewed from above.  FIG.  4    and  FIG.  5    are perspective views schematically showing a fixing member of  FIG.  2   .  FIG.  6    is a view schematically showing the lift pin assembly of  FIG.  2    when viewed from the front. Hereinafter, a lift pin assembly  250  according to an embodiment of the inventive concept will be described in detail with reference to  FIG.  2    to  FIG.  6   . 
     The lift pin assembly  250  may lift/lower the substrate W. The lift pin assembly  250  may hand over the substrate W between the second transfer robot  53  and the support plate  210 . The lift pin assembly  250  may be disposed in the inner space  211 . The lift pin assembly  250  may include a base plate  252 , a lift pin  255 , a fixing member  256 , and a driving member  259 . 
     The base plate  252  may be located in the inner space  211 . When viewed from above, the base plate  252  is formed in a shape corresponding to the inner space  211 , e.g., the shape of the base plate  252  is substantially identical to the shape of the inner space  211  but with smaller size when viewed from above, thereby the base plate  252  may be located within the inner space  211  with spaced apart therefrom and move up/down therein. An outer circumferential surface of the base plate  252  may be provided to be spaced apart from an inner surface of the inner space  211 . For example, the outer circumferential surface of the base plate  252  may be provided to be spaced apart from the inner surface of the inner space  211  to form a fine space. The base plate  252  may move in the inner space  211  in an up/down direction. For example, the base plate  252  may move in the up/down direction in the inner space  211  by the driving member  259  to be described later. 
     Referring to  FIG.  3   , the base plate  252  may include a central part  252   a  and a body part  252   b . The central part  252   a  may be connected to the driving member  259  to be described later. The body part  252   b  may be provided in plural. The plurality of body part  252   b  may extend radially from the central part  252   a  and radially extending each body part  225   b  may define a bar shape. For example, three body parts  252   b  may be provided. The body part  252   b  may have the same length. In some embodiments, at least two body parts may have different length. Further, an angle between two adjacent body parts  252   b  may be constant. In some embodiment an angle between one pair of adjacent body parts  252   b  may be different another pair of adjacent body parts  252   b.    
     A through hole  253  and a fastening hole  254  may be formed at the base plate  252 . For example, each body part  252   b  may be provided with the through hole  253  and the fastening hole  254 . The through hole  253  and the fastening hole  254  are spaced apart from each other. The through hole  253  may penetrate from a top end to a bottom end of the body part  252   b , thus communicate with the inner space  211 . The through hole  253  functions as a passage through which a negative pressure applied to the inner space  211  moves. The through hole  253  may provide a negative pressure provided in a region under the base plate  252  to a region over the base plate  252  in the inner space  211  in which a negative pressure is provided by the decompression unit  260  to be described later. 
     The fastening hole  254  may penetrate from the top end to the bottom end of the body part  252   b . The lift pin  255  to be described later is fastened to the fastening hole  254 . For example, a bottom holder  257  to be described later may be fastened to the fastening hole  254 . In the above-described embodiment, the fastening hole  254  formed penetrating the body part  252   b  vertically is used as an example, but the inventive concept is not limited thereto. For example, the fastening hole  254  may be provided as a groove formed by being indented a preset distance downward from the top end of the body part  252   b  without vertically penetrating thorough the body part  252   b.    
     The lift pin  255  supports the bottom surface of the substrate W. The lift pin  255  is formed to upwardly protrude from the base plate  252 . A plurality of lift pins  255  may be provided. In an embodiment, three lift pins  255  may be provided. As many lift pins  255  may be provide as bod parts  252   b . Each lift pin  255  may be coupled to the respective body part  252   b . The lift pin  255  may be fixedly coupled to the bottom holder  257  and a top holder  258  to be described later and coupled to the base plate  252 . The plurality of lift pins  255  may share a center of the central part  252   a  and may be disposed to have a same radius. The lift pin  255  may move along the pin hole H 1  formed in the support plate  210  in the up/down direction. The lift pin  255  may be made of an insulation material. 
     Referring to  FIG.  4    to  FIG.  6   , the fixing member  256  couples the base plate  252  and the lift pin  255  to each other. The fixing member  256  is made of an elastic material. In an embodiment, the fixing member  256  may be formed of a material including a plastic resin-based polyether ether ketone (PEEK). In addition, the fixing member  256  may be made of a conductive material. In an embodiment, the fixing member  256  may be formed of a conductive material having a range of 0 to 10{circumflex over ( )}5 Ω/cm2. In addition, the fixing member  256  may be made of a static dissipation material. In an embodiment, the fixing member  256  may be formed of an electrostatic dissipation material having a range of 10{circumflex over ( )}6 to 10{circumflex over ( )}9 Ω/cm2. In addition, the fixing member  256  may be made of an anti-static material. In an embodiment, the fixing member  256  may be formed of an antistatic material having a range of 10{circumflex over ( )}10 to 10{circumflex over ( )}13 Ω/cm2. 
     The fixing member  256  may include a bottom holder  257  and a top holder  258 . The bottom holder  257  may be coupled to the base plate  252 , thereby fixing a bottom end of the lift pin  255 . The bottom holder  257  may include a base plate coupling part  257   a , a bottom coupling part  257   b , and a first fixing part  257   c.    
     The base plate coupling part  257   a , the bottom coupling part  257   b , and the first fixing part  257   c  may be integrally formed. The base plate coupling part  257   a  may be coupled to the fastening hole  254 . The base plate coupling part  257   a  is coupled to the fastening hole  254 , and the fixing member  256  is fixedly coupled to the base plate  252 . 
     The bottom coupling part  257   b  is located above the base plate coupling part  257   a . When the bottom holder  257  is fixed to the base plate  252 , the bottom surface of the bottom coupling part  257   b  may be in surface contact with the top surface of the base plate  252 . Accordingly, the bottom holder  257  may be supported from the base plate  252  by the bottom coupling part  257   b . The bottom coupling part  257   b  may be engaged to a top coupling part  258   a  to be described later. As the bottom coupling part  257   b  and the top coupling part  258   a  are engaged to each other, the bottom holder  257  and the top holder  258  may be fixedly coupled to each other. 
     The first fixing part  257   c  is located above the bottom coupling part  257   b . The first fixing part  257   c  is formed to protrude from the bottom coupling part  257   b . The first fixing part  257   c  fixes and supports the bottom end of the lift pin  255 . The first fixing part  257   c  is formed to surround an outer circumferential surface of the lift pin  255 . In an embodiment, the first fixing part  257   c  may be formed in a cylindrical shape having a hollow. By inserting the lift pin  255  into the hollow of the first fixing part  257   c , the first fixing part  257   c  may fix the lift pin  255 . 
     The top holder  258  is coupled to the bottom holder  257  and the lift pin  255 . The top holder  258  may be coupled to the bottom holder  257  and may fix further the lift pin  255 . The top holder  258  may include a top coupling part  258   a  and a second fixing part  258   b . The top coupling part  258   a  and the second fixing part  258   b  may be integrally formed. 
     The top coupling part  258   a  may be fastened to the bottom coupling part  257   b . When the top coupling part  258   a  and the bottom coupling part  257   b  are coupled to each other, the top coupling part  258   a  is located above the bottom coupling part  257   b . Accordingly, the top holder  258  may be fixedly coupled to the bottom holder  257 . 
     The second fixing part  258   b  is located above the top coupling part  258   a . The second fixing part  258   b  is formed to protrude from the top coupling part  258   a . The second fixing part  258   b  fixes the lift pin  255 . The second fixing part  258   b  fixes and supports a top part of a bottom end of the lift pin  255  supported by the first fixing part  257   c . In an embodiment, the second fixing part  258   b  may be formed to surround the first fixing part  257   c  and surround the lift pin  255  upwardly protruding from the first fixing part  257   c . Accordingly, the second fixing part  258   b  may provide a fixing force to each of the first fixing part  257   c  and the lift pin  255 . Accordingly, while fixing the bottom holder  257 , the top holder  258  may provide a binding force to the lift pin  255 . 
     The driving member  259  provides a driving force to the base plate  252 . The driving member  259  may move vertically (upwardly and downwardly) the base plate  252  within the inner space  211 . The driving member  259  may move the base plate  252  from a top end to a bottom end of the inner space  211 . In addition, the driving member  259  may move the base plate  252  from the bottom end to the top end of the inner space  211 . 
     The driving member  259  may be located in the inner space  211 . However, the inventive concept is not limited thereto, and the driving member  259  may be located outside the support unit  200 . In an embodiment, the driving member  259  may be provided as a motor. However, the inventive concept is not limited thereto, and the driving member  259  may be transformed into various devices that provide a known driving force. In addition, a bellows providing a restoring force may be installed at the driving member  259 . 
     Referring back to  FIG.  2   , the decompression unit  260  applies a negative pressure to the inner space  211 . The decompression unit  260  provides the negative pressure to the substrate W. The decompression unit  260  may include a decompression pump  262  and a decompression line  264 . The decompression pump  262  applies the negative pressure to the decompression line  264 . The decompression pump  262  may be a pump that provides the negative pressure. However, the inventive concept is not limited thereto, and the decompression pump  262  may be variously modified into a known device that provides the negative pressure. An end of the decompression line  264  may be connected to the decompression pump  262 , and the other end of the decompression line  264  may be connected to the inner space  211 . For example, the other end of the decompression line  264  may be connected to a bottom surface of the inner space  211 . 
     The lifting/lowering member  270  may lift/lower the support plate  210 . The lifting/lowering member  270  may include a driver  272  and a shaft  274 . The driver  272  may lift/lower the support plate  210  in the up/down direction through the shaft  274 . The shaft  274  may be coupled to the support plate  210 . In addition, the shaft  274  may be connected to the driver  272 . As the driving member  270  lifts/lowers the support plate  210 , an interval between a top surface of the substrate W supported by the support plate  210  and a bottom surface of the dielectric plate  320  to be described later may be adjusted. 
       FIG.  7    is a view schematically illustrating a state in which the decompression unit of  FIG.  2    applies the negative pressure to an inner space.  FIG.  8    is a view schematically illustrating an enlarged view of a pin hole when the decompression unit of  FIG.  7    applies the negative pressure to an inner space. Hereinafter, a mechanism by which negative pressure sucking and fixing the substrate in the support unit according to an embodiment of the inventive concept flows will be described in detail with reference to  FIG.  7    and  FIG.  8   . 
     The lift pin assembly  250  receives the substrate W from the second transfer robot  53  and transfers the substrate W to the support plate  210 . In this case, the lift pin  255  may stably move up and down by the fixing member  256 . 
     Specifically, the bottom holder  257  is stably coupled to the base plate  252  that moves up/down, and at the same time fixedly support the bottom end of the lift pin, a coupling stability of the lift pin  255  is ensured by the up/down movement of the base plate  252 . In addition, the top holder  258  fixes the bottom holder  257  coupled to the base plate  252  and simultaneously fixes and supports the lift pin  255  again, thereby preventing a shaking of the lift pin  255  due to the up/down movement of the base plate  252 . Accordingly, by improving a coupling stability of the lift pin assembly  250 , it is possible to minimize a generation of a vibration on the substrate W supported by the lift pin  255 . Accordingly, since the substrate W is stably supported by the support plate  210  and thereby maintaining a horizontal state, a plasma treatment may be smoothly performed on an edge region of the substrate W to be described later. 
     In addition, as shown in  FIG.  7    and  FIG.  8   , when the substrate W is appropriately seated on the support plate  210  by the lift pin  255 , the substrate W is vacuum-sucked at the top surface of the support plate  210  by the decompression unit  260 . For example, the decompression unit  260  provides the negative pressure to a bottom region of the inner space  211 . The negative pressure applied to the bottom region of the inner space  211  is transferred to the top region of the inner space  211  through the through hole  253  formed in the base plate  252 . The negative pressure transferred to the top region of the inner space  211  reaches the bottom surface of the substrate W along the pin hole H 1  and the through hole H 2 . The negative pressure applied to the bottom surface of the substrate W allows the substrate W to be stably sucked and fixed to the support plate  210 . 
     When the substrate W is not properly fixed to the support plate  210  and thus horizontally shakes, it is difficult to process the substrate W properly. Particularly, as will be described later, when the plasma treatment is performed by targeting the edge region of the substrate W, the substrate W must be supported at a correct process position. In an embodiment, when the horizontality required by the process position of the substrate W on the support plate  210  is broken, the plasma treatment on the edge region of the substrate W cannot be uniformly performed. 
     Accordingly, according to an embodiment of the inventive concept, the coupling stability of the lift pin assembly  250  may be improved to stably lift/lower the substrate W. In addition, by providing a stable negative pressure to the substrate W through the through hole  253  formed at the base plate  252  and the pin hole H 1  and the through hole H 2  formed at the support plate  210 , the substrate W is stably sucked at the top surface of the support plate  210  to maintain the appropriate process position. 
     Also, as described later, in accordance with an embodiment of the inventive concept, since the plasma P is formed at the edge region of the substrate W, electrical characteristics exist on the substrate W. Accordingly, if the lift pin  255  in contact with the substrate W is electrically connected, arcing may occur in the lift pin  255 . Accordingly, according to an embodiment of the inventive concept, the lift pin  255  is formed of an insulation material, thereby minimizing the risk of arcing the lift pin assembly  250 . 
     In addition, since the fixing member  256  that couples the lift pin  255  and the base plate  252  is made of an elastically deformable material, the lift pin  255  may be stably supported within an elastic range of the fixing member  256 . In addition, as the fixing member  256  is provided with a material that suppresses a generation of static electricity (e.g., a conductive material, an electrostatic dissipation material, or an antistatic material), an effect of grounding static electricity through the fixing member  256  may be obtained when electric charges are present around the lift pin  255 . Accordingly, a structural stability and a durability of the lift pin assembly  250  may be increased. 
     Referring back to  FIG.  2   , the dielectric plate unit  300  may include a dielectric plate  320  and a first base  340 . The dielectric plate  320  may be disposed such that a bottom surface thereof faces the top surface of the support plate  210 . When viewed from above, the dielectric plate  320  may have a substantially circular shape. A top surface of the dielectric plate  320  may be formed to be stepped so that a height of the central region is relatively higher than a height of the edge region. The bottom surface of the dielectric plate  320  may be formed in a generally flat shape. Among the bottom surfaces of the dielectric plate  320 , an edge region may be formed to be stepped so that a height thereof is relatively higher than that of a central region. Among the bottom surfaces of the dielectric plate  320 , a plasma P to be described later may enter the stepped region. Accordingly, an efficiency of processing the edge region of the substrate W may be improved. 
     The dielectric plate  320  is located in the inner space  102 . The dielectric plate  320  is disposed above the support unit  200 . The dielectric plate  320  is disposed to face the top surface of the substrate W supported by the support unit  200  in the inner space  102 . In an embodiment, the dielectric plate  320  may be disposed to face the top surface of the substrate W supported by the support plate  210  in the inner space  102 . 
     The dielectric plate  320  may be made of a material including a ceramic. A gas channel connected to a first gas supply unit  620  of a gas supply unit  600  to be described later may be formed at the dielectric plate  320 . A discharge end of the gas channel may be configured such that a first gas G 1  supplied by the first gas supply unit  620  is supplied to the central region of the substrate W supported by the support unit  200 . For example, the discharge end of the gas channel may be configured to supply the first gas G 1  to a top surface of the central region of the substrate W supported by the support unit  200 . 
     The first base  340  may be disposed between the dielectric plate  320  and a temperature control plate  520  to be described later. The first base  340  may be coupled to the temperature control plate  520 , and the dielectric plate  320  may be coupled to the first base  340 . Accordingly, the dielectric plate  320  may be coupled to the temperature control plate  520  via the first base  340 . 
     A diameter of the first base  340  may gradually increase from top to bottom. A diameter of a top surface of the first base  340  may be smaller than a diameter of the bottom surface of the dielectric plate  320 . The top surface of the first base  340  may have a flat shape. A bottom surface of the first base  340  may have a stepped shape. For example, a bottom surface of an edge region of the first base  340  may be formed to be stepped so that a height at the edge region thereof is lower than that of the central region. 
     The bottom surface of the first base  340  and the top surface of the dielectric plate  320  may have a shape that may be combined with each other. For example, a central region of the dielectric plate  320  may be inserted into a central region of the first base  340 . The first base  340  may be made of a material including a metal. In an embodiment, the first base  340  may be made of a material including an aluminum. A position of the dielectric plate  320  may be fixed by the first base  340 . 
     The top electrode unit  400  may function as a plasma source. For example, the top electrode unit  400  may be a plasma source that generates a plasma by exciting a process gas supplied to an edge region of the substrate W. The top electrode unit  400  may include a top edge electrode  420  and a second base  440 . 
     The top edge electrode  420  may be grounded. The top edge electrode  420  may have a shape surrounding the dielectric plate  320  when viewed from above. The top edge electrode  420  may have a ring shape when viewed from above. The top edge electrode  420  may be provided to be spaced apart from the dielectric plate  320 . The top edge electrode  420  may be spaced apart from the dielectric plate  320  to form a separation space. The separation space may form some of the channels through which a second gas G 2  supplied by a second gas supply unit  640  to be described later flows. 
     A discharge end of the gas channel may be configured to supply the second gas G 2  to the edge region of the substrate W supported by the support unit  200 . For example, the discharge end of the gas channel may be configured to supply the second gas G 2  to a top surface of the edge region of the substrate W supported by the support unit  200 . 
     The top edge electrode  420  may be grounded. According to an embodiment of the inventive concept, the top edge electrode  420  may be disposed on the edge region of the substrate W. When viewed from above, the top edge electrode  420  may be disposed in the edge region of the substrate W supported by the support plate  210 . The edge area of the substrate W may be an area overlapping the outer circumference of the substrate W when viewed from above. Selectively, the edge area of the substrate W may be an area that does not overlap the outer circumference of the substrate W when viewed from above. The top edge electrode  420  may be disposed above the substrate W when viewed from the front. 
     The second base  440  may be disposed above the support plate  210 . The second base  440  may be disposed above the substrate W supported by the support plate  210 . The second base  440  may fix a position of the top edge electrode  420 . The second base  440  may be disposed between the top edge electrode  420  and the temperature control plate  520  to be described later. The second base  440  may be coupled to the temperature control plate  520 , and the top edge electrode  420  may be coupled to the second base  440 . Accordingly, the top edge electrode  420  may be coupled to the temperature control plate  520  via the second base  440 . 
     The second base  440  may have a ring shape when viewed from above. The top and bottom surface of the second base  440  may be formed in a flat shape. When viewed from above, the second base  440  may have a shape surrounding the first base  340 . An inner diameter of the second base  440  may gradually increase from top to bottom. The second base  440  may be provided to be spaced apart from the first base  340 . The second base  440  may be spaced apart from the first base  340  to form a separation space. The separation space may form a part of a gas channel through which a second gas G 2  supplied by the second gas supply unit  640  to be described later flows. The second base  440  may be made of a material including a metal. In an embodiment, the second base  440  may be made of a material including an aluminum. 
     The temperature control unit  500  may include a temperature control plate  520  and a fluid supply module (not shown). The fluid supply module (not shown) may supply and discharge the cooling fluid to the channel  522  formed in the temperature control plate  520 . 
     The temperature control plate  520  may be coupled to the dielectric plate unit  300  and the top electrode unit  400 , respectively. The temperature control plate  520  is located within the housing  100 . The temperature control plate  520  may be installed at a ceiling of the housing  100 . The temperature control plate  520  prevents temperatures of the first base  340  and the second base  440  from being excessively increased. A channel  522  through which the cooling fluid CF flows may be formed in the temperature control plate  520 . The cooling fluid CF may be a cooling water. Selectively, the cooling fluid CF may be a cooling gas. 
     According to an embodiment of the inventive concept, the first base  340  is disposed between the dielectric plate  320  and the temperature control plate  520 . The first base  340  may be made of a material different from that of the dielectric plate  320 , and may be made of the same material as that of the temperature control plate  520 . That is, a thermal expansion rate of the first base  340  may be relatively closer to a thermal expansion rate of the temperature control plate  520  than a thermal expansion rate of the dielectric plate  320 . Accordingly, by disposing the first base  340  between the dielectric plate  320  and the temperature control plate  520 , it is possible to minimize an occurrence of distortion between the temperature control plate  520  and the dielectric plate  320  due to a cold heat generated by the temperature control plate  520 . This is because the first base  340  in direct contact with the temperature control plate  520  is made of a material similar to that of the temperature control plate  520 . 
     Similar to the above description, according to an embodiment of the inventive concept, the second base  440  is disposed between the top edge electrode  420  and the temperature control plate  520 . The second base  440  may be made of a material different from that of the top edge electrode  420 , and may be made of a same material as or similar to the temperature control plate  520 . That is, a thermal expansion rate of the second base  440  may be relatively closer to the thermal expansion rate of the temperature control plate  520  than the thermal expansion rate of the top edge electrode  420 . Accordingly, since the second base  440  is disposed between the top edge electrode  420  and the temperature control plate  520 , it is possible to minimize an occurrence of distortion between the temperature control plate  520  and the top edge electrode  420  due to the cold heat generated by the temperature control plate  520 . This is because the second base  440  in direct contact with the temperature control plate  520  is made of a material similar to that of the temperature control plate  520 . 
     The gas supply unit  600  supplies a gas to the inner space  102 . The gas supply unit  600  may supply the first gas G 1  and the second gas G 2  to the inner space  102 . The gas supply unit  600  may include a first gas supply unit  620  and a second gas supply unit  640 . 
     The first gas supply unit  620  supplies the first gas G 1  to the inner space  102 . The first gas G 1  may be an inert gas such as nitrogen. The first gas supply unit  620  may supply the first gas G 1  to the central region of the substrate W supported by the support plate  210 . The first gas supply unit  620  may include a first gas supply source  622 , a second gas supply line  624 , and a first valve  626 . 
     The first gas supply source  622  may store the first gas G 1 . In addition, the first gas supply source  622  may supply the first gas G 1  to the first gas supply line  624 . The first gas supply line  624  may be connected to a channel formed at the dielectric plate  320 . A first valve  626  may be installed at the first gas supply line  624 . The first valve  626  may be provided as an on/off valve. Selectively, the first valve  626  may be provided as a flow control valve. The first gas G 1  supplied by the first gas supply source  622  may be supplied to a central region of the top surface of the substrate W through a channel formed at the dielectric plate  320 . 
     The second gas supply unit  640  supplies the second gas G 2  to the inner space  102 . The second gas G 2  may be a process gas excited in a plasma state. The second gas supply unit  640  may supply the second gas G 2  to the edge region of the substrate W through a gas channel formed by the dielectric plate  320 , the first base  340 , the top edge electrode  420 , and the second base  440  spaced apart from each other. The second gas supply unit  640  may include a second gas supply source  642 , a second gas supply line  644 , and a second valve  646 . 
     The second gas supply source  642  may store the second gas G 2 . In addition, the second gas supply source  642  may supply the second gas G 2  to the second gas supply line  644 . The second gas supply line  644  may supply the second gas G 2  to a separation space functioning as a gas channel. The second valve  646  may be installed at the second gas supply line  644 . The second valve  646  may be an on/off valve. Selectively, the second valve  646  may be provided as a flow control valve. The second gas G 2  supplied by the second gas supply source  642  may be supplied to the top edge region of the substrate W through a gas channel. 
     A controller  900  may control the substrate treating apparatus  1 . The controller  900  may control the substrate treating apparatus  1  to perform a plasma treating process performed below. For example, the controller  900  may control the support unit  200 , the temperature control plate  520 , and the gas supply unit  600 . For example, when a gas is supplied from the first gas supply unit  620  and/or the second gas supply unit  640 , the controller  900  may control the support unit  200  and the gas supply unit  600  to apply a power to the support unit from the power  222  to generate a plasma P in an edge region of the substrate W supported by the support plate  210 . 
     The controller may include a process controller formed of a microprocessor (computer) that executes the control of the substrate treating apparatus  1000 , a user interface formed of a keyboard in which an operator performs a command input operation or the like in order to manage the substrate treating apparatus  1000 , a display for visualizing and displaying an operation situation of the substrate treating apparatus  1000 , and the like, and a storage unit storing a control program for executing the process executed in the substrate treating apparatus  1000  under the control of the process controller or a program, that is, a treatment recipe, for executing the process in each component according to various data and treating conditions. Further, the user interface and the storage unit may be connected to the process controller. The treatment recipe may be stored in a storage medium in the storage unit, and the storage medium may be a hard disk, and may also be a portable disk, such as a CD-ROM or a DVD, or a semiconductor memory, such as a flash memory. 
       FIG.  9    is a view schematically illustrating an embodiment of performing the plasma treating process in the process chamber of  FIG.  2   . Referring to  FIG.  9   , the substrate treating apparatus  1  according to an embodiment of the inventive concept may treat the edge region of the substrate W. For example, the substrate treating apparatus  1  may generate the plasma P in the edge region of the substrate W to treat the edge region of the substrate W. For example, the substrate treating apparatus  1  may perform a bevel etch process for treating the edge region of the substrate W. 
     In order to perform the bevel etch process on the substrate W, the lift pin assembly  250  receives the substrate W from the second transfer robot  53  and transfers the substrate W to the support plate  210 . In order to perform the bevel etch process on the substrate W, the lifting/lowering member  270  may move the support unit  200  upward to narrow the gap between the substrate W and the dielectric plate  320 . 
     When the substrate treating apparatus  1  treats the edge region of the substrate W, the first gas supply unit  620  may supply the first gas G 1  to the central region of the substrate W, and the second gas supply unit  640  may supply the second gas G 2  to the edge region of the substrate W. Since the second gas G 2  supplied by the second gas supply unit  640  is a process gas, it may be excited in a plasma P state to treat the edge region of the substrate W. For example, a thin film on the edge region of the substrate W may be etched by the plasma P. In addition, the first gas G 1  supplied to the central region of the substrate W is an inert gas, and the first gas G 1  prevents the second gas G 2  from flowing into the central region of the substrate W, thereby further increasing a treating efficiency for the edge region of the substrate W. 
     In the above-described embodiment of the inventive concept, the support unit  200  moves in the up/down direction and the positions of the dielectric plate  320  and the top edge electrode  420  are fixed, but the inventive concept is not limited thereto. For example, the position of the support unit  200  may be fixed, and the dielectric plate  320  may be configured to be movable in the up/down direction. In addition, both the support unit  200  and the dielectric plate  320  may be configured to be movable in the up/down direction. 
     In addition, in the above-described embodiment of the inventive concept, the bottom edge electrode  240  and the top edge electrode  420  are respectively grounded as examples, but the inventive concept is not limited thereto. One of the bottom edge electrode  240  and the top edge electrode  420  may be grounded, and the other may be connected to an RF power source. In addition, both the bottom edge electrode  240  and the top edge electrode  420  may be connected to the RF power source. 
     The method of generating the plasma P by the substrate treating apparatus  1  described in the above example may be an inductive coupled plasma (ICP) method. In addition, the above-described method of generating the plasma P by the substrate treating apparatus  1  may be a capacitor couple plasma (CCP) method. In addition, the substrate treating apparatus  1  may use both the ICP (Inductive Couple Plasma) method and the CCP (Capacitor Couple Plasma) method, or generate the plasma P using a selected method among the ICP (Inductive Couple Plasma) method or the CCP (Capacitor Couple Plasma) method. In addition, the substrate treating apparatus  1  may generate the plasma P using a remote plasma method. 
     The above detailed description illustrates the inventive concept. Also, the above-described description is to illustrate and describe a preferred embodiment of the inventive concept, and the inventive concept may be used in various other combinations, changes, and environments. That is, changes or modifications may be made within the scope of the concept of the invention disclosed in this specification, the scope equivalent to the disclosed content, and/or the skill or knowledge of the art. The above-described embodiment is to describe the best state for implementing the technical idea of this invention, and various changes required in the specific application fields and uses of this invention are also possible. Accordingly, the detailed description of the inventive concept is not intended to limit the inventive concept to the disclosed embodiment. In addition, the scope of the attached claim should be interpreted as including other implementations.