Patent ID: 7874781

Claim:
A substrate processing apparatus comprising: a plurality of process chambers aligned in two rows for performing a process to substrates therein, each of the process chambers having a first port through which the substrates are conveyed; a conveyance case located between the two rows of the process chambers for accommodating the substrates in an isolated state from an external atmosphere and conveying the substrates to the process chambers, said conveyance case having two second ports so that the substrates are conveyed between the process chambers and the conveyance case through the first ports and the second ports; and a moving mechanism that moves the conveyance case along a moving path between the two rows of the process chambers, wherein said conveyance case has a connecting plate provided to each second port so as to be located between the first ports and each second port for closely connecting the first ports and each second port, and a bellows provided between each connecting plate and each second port for retaining a connection of each connecting plate and each second port, each connecting plate being configured to move back and forth relative to said conveyance case so that each connecting plate is attracted to said conveyance case while moving, and can be pressed against one of the plurality of process chambers when said conveyance case is stopped to convey the substrates between said process chamber and said conveyance case.