Abstract: A method of etching a silicon oxide film on a substrate, includes generating reaction products containing moisture by modifying the silicon oxide film by supplying a mixed gas containing a gas containing a halogen element and a basic gas onto the surface of the silicon oxide film and making chemical reaction of the silicon oxide film with the mixed gas, generating different reaction products by modifying the silicon oxide film by supplying the gas containing a halogen element onto an interface between the silicon oxide film and the reaction products and making a chemical reaction on the silicon oxide film with the gas containing a halogen element by using the moisture contained in the reaction products, and heating and removing the reaction products and the different reaction products.

Abstract: A method of etching a silicon oxide film on a substrate, includes generating reaction products containing moisture by modifying the silicon oxide film by supplying a mixed gas containing a gas containing a halogen element and a basic gas onto the surface of the silicon oxide film and making chemical reaction of the silicon oxide film with the mixed gas, generating different reaction products by modifying the silicon oxide film by supplying the gas containing a halogen element onto an interface between the silicon oxide film and the reaction products and making a chemical reaction on the silicon oxide film with the gas containing a halogen element by using the moisture contained in the reaction products, and heating and removing the reaction products and the different reaction products.

Abstract: The semiconductor manufacturing method includes the step (ST.1) of preparing a semiconductor substrate with a copper or copper-containing metal film exposed on a surface, step (ST.2) of depositing on the copper or copper-containing metal film a metal film consisting essentially of any one of CoWB, CoWP, or W; step (ST.3) of introducing Si into the above-described metal film, and step (ST.4) of nitriding the metal film introduced with Si.

Abstract: A semiconductor device manufacturing method capable of preventing an infliction of damage upon an interlayer insulating film and moisture adsorption thereto due to opening to atmosphere in a process of forming a CuSiN barrier by infiltrating Si into a surface of a copper-containing metal film and nitrifying a Si-infiltrated portion is disclosed. When a semiconductor device is manufactured through the processes of preparing a semiconductor substrate having a copper-containing metal film exposed on a surface thereof; purifying a surface of the copper-containing metal film by using radicals or by using a thermo-chemical method; infiltrating Si into the surface of the copper-containing metal film; and nitrifying a Si-infiltrated portion of the copper-containing metal film by radicals, the purification process, the Si introduction process and the nitrification process are successively performed without breaking a vacuum.