Substrate processing apparatus, method for measuring distance between electrodes, and storage medium storing program

摘要

A distance between electrodes can be accurately measured by using a lifter. A substrate processing apparatus includes an upper electrode 120 and a lower electrode 310 facing each other within a processing chamber 102; a lift pin 332 that is protrusible from and retractable below the lower electrode and lifts up a substrate mounted on the lower electrode to be separated from the lower electrode; a lifter 330 that elevates the lift pin up and down; and a controller 400 that elevates the lift pin upward and brings the lift pin into contact with the upper electrode by driving the lifter while the substrate is not mounted on the lower electrode and measures a distance between the electrodes based on a moving distance of the lifter.