Patent ID: 9460945
Filing Date: 2016-10-04
CPC Classification: H01L

Claim Text:
1. A substrate processing apparatus, comprising: a processing chamber for processing a substrate; a substrate supporting tool for supporting and carrying the substrate into the processing chamber; a wafer transfer equipment for carrying the substrate to the substrate supporting tool; a standby chamber formed below the processing chamber for holding the wafer transfer equipment and the substrate supporting tool in standby; a gas supply unit provided on the side of the standby chamber for supplying inert gas or gas containing oxygen into the standby chamber; a circulating path for circulating inert gas supplied from the gas supply unit to the standby chamber; an intake duct having an intake port, provided on the side of the standby chamber and opposite to the gas supply unit, for exhausting the inert gas or gas containing oxygen from the standby chamber; a first gas exhaust path for exhausting, from the substrate processing apparatus, the inert gas or gas containing oxygen within the intake duct; a second gas exhaust path, separate from the first gas exhaust path, being openable and closable, connected to the side of the intake duct for exhausting from the substrate processing apparatus; a forced gas exhaust unit connected to the intake duct for exhausting the gas to the second gas exhaust path; and at least one gate valve disposed downstream of the forced gas exhaust unit for opening and closing the second gas exhaust path,