Patent ID: 8113142

Claim:
An apparatus for processing a substrate comprising: a first processing block performing a coating process and a developing process on substrates, the first processing block comprising: an upper unit block comprising one of at least one coating unit for forming a layer on the substrates and at least one developing unit for developing a photoresist layer on the substrates; a lower unit block comprising another one of the at least one coating unit and the at least one developing unit; and a middle unit block detachably disposed between the upper and lower unit blocks and comprising at least one of coating units and developing units; a second processing block disposed opposite to the first processing block to heat-treat the substrates, the second processing block comprising at least one heat treating unit to provide heat; and, a substrate-transferring block disposed between the first and second processing blocks to transfer the substrates, the substrate-transferring block comprises: an upper transfer robot transferring the substrates between the upper unit block, the middle unit block and the second processing block; and a lower transfer robot transferring the substrates between the lower unit block, the middle unit block and the second processing block.