Abstract: An apparatus for treating a substrate is provided having a treating module, a buffer module, and an index module arranged in sequentially along a first direction. The index module includes a load port where a substrate receiving container places an index module configured to transfer the substrate between the load port and the buffer module. The buffer module includes a first and second buffer unit arranged along a second direction perpendicular to the first direction. The treating module includes a first treating unit, a second treating unit, a first transfer chamber, and a second transfer chamber, wherein the first transfer chamber includes a first transfer robot configured to transfer the substrate between the first buffer unit and the first treating unit, and wherein the second transfer chamber includes a second transfer robot configured to transfer the substrate between the second buffer unit and the second treating unit.

Abstract: An apparatus for treating a substrate is provided having a treating module, a buffer module, and an index module arranged in sequentially along a first direction. The index module includes a load port where a substrate receiving container places an index module configured to transfer the substrate between the load port and the buffer module. The buffer module includes a first and second buffer unit arranged along a second direction perpendicular to the first direction. The treating module includes a first treating unit, a second treating unit, a first transfer chamber, and a second transfer chamber, wherein the first transfer chamber includes a first transfer robot configured to transfer the substrate between the first buffer unit and the first treating unit, and wherein the second transfer chamber includes a second transfer robot configured to transfer the substrate between the second buffer unit and the second treating unit.