Abstract: A treatment gas is supplied to form a Ti-based film on a predetermined number of wafers W while setting a temperature of a susceptor 2 in a chamber 1 to a predetermined temperature. After this, the interior of the chamber 1 containing no wafers W is cleaned by discharging Cl2 gas as a cleaning gas from a shower head 10 into the chamber 1. During this cleaning, the temperature of each of the susceptor 2, the shower head 10, and the wall portion of the chamber 1 is independently controlled so that the temperature of the susceptor 2 is not lower than the decomposition start temperature of Cl2 gas and the temperature of the shower head 10 and the wall portion of the chamber 1 is not higher than the decomposition start temperature.

Abstract: Disclosed is a film forming method using a film forming gas composed of a metal alkoxide wherein clean film formation suppressed in contamination of a target substrate to be processed is achieved by restraining aluminum or an aluminum alloy in the processing chamber from dissolving. Specifically disclosed is method for forming a thin film on a target substrate to be processed which is held in a processing chamber, and this method comprises a step for heating the target substrate and a step for supplying a film forming gas into the processing chamber. This method is characterized in that the film forming gas is composed of a metal alkoxide, the processing chamber is made of aluminum or an aluminum alloy, and a protective film composed of a nonporous anodic oxide film is formed on the inner wall surface of the processing chamber.

Abstract: A treatment gas is supplied to form a Ti-based film on a predetermined number of wafers W while setting a temperature of a susceptor 2 in a chamber 1 to a predetermined temperature. After this, the interior of the chamber 1 containing no wafers W is cleaned by discharging Cl2 gas as a cleaning gas from a shower head 10 into the chamber 1. During this cleaning, the temperature of each of the susceptor 2, the shower head 10, and the wall portion of the chamber 1 is independently controlled so that the temperature of the susceptor 2 is not lower than the decomposition start temperature of Cl2 gas and the temperature of the shower head 10 and the wall portion of the chamber 1 is not higher than the decomposition start temperature.

Abstract: Disclosed is a film forming method using a film forming gas composed of a metal alkoxide wherein clean film formation suppressed in contamination of a target substrate to be processed is achieved by restraining aluminum or an aluminum alloy in the processing chamber from dissolving. Specifically disclosed is method for forming a thin film on a target substrate to be processed which is held in a processing chamber, and this method comprises a step for heating the target substrate and a step for supplying a film forming gas into the processing chamber. This method is characterized in that the film forming gas is composed of a metal alkoxide, the processing chamber is made of aluminum or an aluminum alloy, and a protective film composed of a nonporous anodic oxide film is formed on the inner wall surface of the processing chamber.

Abstract: A method of forming a gate electrode of a multi-layer structure includes a step of supplying a processing gas for poly-crystal film formation and impurities of a P-type into a film formation device, to form a poly-crystal silicon layer doped with P-type impurities, on a surface of a gate film target, a step of maintaining the processing target in the film formation device to prevent formation of an oxide film on the poly-crystal silicon layer; and a step of supplying a processing gas for tungsten silicide film formation and impurities of a P-type into the film formation device, to form a tungsten silicide layer doped with impurities of P-type impurities, on the poly-crystal silicon layer on which no oxide film is formed.

Abstract: A method of forming a gate electrode of a multi-layer structure includes a step of supplying a processing gas for poly-crystal film formation and impurities of a P-type into a film formation device, to form a poly-crystal silicon layer doped with P-type impurities, on a surface of a gate film target, a step of maintaining the processing target in the film formation device to prevent formation of an oxide film might not be formed on the poly-crystal silicon layer, and a step of supplying a processing gas for tungsten silicide film formation and impurities of a P-type into the film formation device, to form a tungsten silicide layer doped with impurities of P-type impurities, on the poly-crystal silicon layer on which no oxide film is formed.

Abstract: A method of forming a gate electrode of a multi-layer structure comprises a step of supplying a processing gas for poly-crystal film formation and impurities of a P-type into a film formation device, to form a poly-crystal silicon layer doped with P-type impurities, on a surface of a gate film target, a step of maintaining the processing target in the film formation device to prevent formation of no oxide film might not be formed on the poly-crystal silicon layer, and a step of supplying a processing gas for tungsten silicide film formation and impurities of a P-type into the film formation device, to form a tungsten silicide layer doped with impurities of P-type impurities, on the poly-crystal silicon layer on which no oxide film is formed.

Abstract: A susceptor according to the present invention is set in a process chamber for subjecting an object to a specific process and can bear the object thereon. The susceptor includes a stepped section for defining a recessed bearing region capable of bearing the object therein and positioning the object on the susceptor, and at least one groove formed in the bearing region and used to allow a gas remaining in a gap between the object and that part of the susceptor which includes the stepped section to get out of the bearing region.