Abstract
Disclosed is a substrate transfer apparatus disposed in a transfer chamber, the substrate transfer apparatus including: a robot main body having hands supporting a substrate; and a driving unit for moving the robot main body in a straight direction, wherein the driving unit includes: a driving case having an inner space; an actuator provided within the driving case, and connected to the robot main body; a cable veyor provided on one side of the actuator to guide the cable connected to the robot main body; an exhaust fan for exhausting atmosphere of the inner space; and an intake manifold for receiving suction force of the exhaust fan through a first intake path connected to the exhaust fan to intake a space where the cable veyor is located.