Patent ID: 6660094
Filing Date: 2003-12-09
Classification: C23C,G03B

Abstract:
An apparatus for forming a deposited film, comprising:a plurality of chambers capable of maintaining interiors thereof under vacuum; a source gas supply piping for supplying a source gas into the chambers; an evacuation system piping for evacuating the interiors of the chambers; and a gas supply piping for use in opening to atmosphere, for supplying a gas for returning a pressure within the chambers to atmospheric pressure, wherein a plurality of shut-off valves are provided in series between a gas source of the gas for returning the pressure within the chambers to the atmospheric pressure and the chambers, wherein a pressure gauge and/or an evacuating means are provided between the plurality of shut-off valves, and wherein the gas supply piping for use in opening to atmosphere is diverged toward the plurality of chambers, and a manually-operated valve is provided midway in the diverged piping.