Patent ID: 6473151
Filing Date: 2002-10-29
Classification: G03F,H01L

Abstract:
A substrate processing apparatus, comprising:a plurality of first processing units, disposed along a first transfer route, each for processing a substrate; a plurality of second processing units, disposed along a second transfer route, for processing the substrate after the substrate processed in the first processing unit is processed in a processing apparatus; and transfer means for transferring the substrate between the plurality of first processing units disposed along the first transfer route and transferring the substrate between the plurality of second processing units disposed along the second transfer route, wherein the transfer means comprises: first transfer means for transferring the substrate between the first processing units along the first transfer route; and second transfer means for transferring the substrate between the second processing units along the second transfer route, said the substrate processing apparatus further comprising a third transfer means for transferring the substrate processed by said plurality of first processing units, to an apparatus external to the first and second processing units and for transferring the substrate processed by the external apparatus to said plurality of second processing units; and wherein the second processing unit further has: a chemical filter disposed on top of the second processing unit; and a mechanism for letting air inside the second processing unit flow downward from above.