Substrate processing apparatus and substrate processing method

An apparatus for processing a substrate, the apparatus comprising:

• a chamber having a first housing and a second housing that are combined with each other to form a processing space inside;
• a support unit configured to support the substrate inside the processing space;
• a fluid supply line configured to supply a supercritical fluid into the processing space;
• a drain line configured to drain the supercritical fluid inside the processing space;
• and
• a housing actuator configured to move the first housing to open or close the processing space;
• wherein the housing actuator includes:
• a plurality of cylinder units coupled to the first housing;
• a fluid supplier configured to supply a fluid for operating the plurality of cylinder units;
• and
• a deviation corrector configured to correct an operation deviation between the plurality of cylinder units;
• wherein each of the plurality of cylinder units includes:
• a cylinder coupled to the first housing;
• a rod coupled to the second housing;
• and
• a piston provided inside the cylinder and connected to the rod, the piston being configured to divide the inside of the cylinder into a first space and a second space;
• wherein the fluid supplier includes:
• a first line connected to the first spaces to supply the fluid into the first spaces or retrieve the fluid from the first spaces;
• and
• a second line connected to the second spaces to supply the fluid into the second spaces or retrieve the fluid from the second spaces, and
• wherein each of the first line and the second line includes:
• an integrated line connected to a fluid supply source;
• and
• a plurality of branch lines configured to branch from the integrated line, the plurality of branch lines being connected to the cylinders, respectively;
• wherein the plurality of branch lines of the first line include:
• a plurality of first branch lines configured to branch from the integrated line of the first line,
• wherein each of the first branch lines is connected to the integrated line of the first line via a first branch valve;
• and
• a plurality of second branch lines configured to branch from each of the first branch lines, wherein each of the second branch lines is connected to one of the first branch lines via a second branch valve;
• wherein the deviation corrector comprises control lines connected to the plurality of second branch lines.