Patent ID: 7988812

Claim:
A substrate treatment apparatus, comprising: a process room including a transfer chamber between at least two process chambers, the transfer chamber providing wafers to the at least two process chambers; a load port in which a container receiving wafers is disposed; and a wafer transfer module disposed between the load port and the process room to transfer the wafers between the load port and the process room, the wafer transfer module including: a first barrier, a second barrier extending from a first end of the first barrier at a first predetermined angle with respect to the first barrier, and a third barrier extending from a second end of the first barrier at a second predetermined angle with respect to the first barrier, wherein: the load port is provided along the first barrier, and the at least two process chambers are arranged on at least one of the second and third barriers, the transfer chamber includes an entrance facing the wafer transfer module for receiving wafers from the wafer transfer module, the wafer transfer module includes a transfer module robot, the transfer module robot including an arm pivotally coupled to a blade, and an end of the second barrier opposite from the first barrier meets with an end of the third barrier opposite from the first barrier, to form a triangle surrounding the arm and the blade of the transfer module robot.