Patent ID: 6726954
Filing Date: 2004-04-27
Classification: C23C,H01L

Abstract:
A method of forming a copper thin film, comprising:supplying a raw material gas into a substrate processing chamber to form a copper thin film on a substrate stored in the substrate processing chamber; supplying an addition gas into the substrate processing chamber in addition to the raw material gas during an initial period of said supplying of the raw material gas into the substrate processing chamber, wherein the addition gas comprises one of steam formed by evaporating water from which dissolved oxygen is removed, a gas formed by evaporating an alcohol derivative from which dissolved oxygen is removed, a gas formed by evaporating a carboxylic acid derivative from which dissolved oxygen is removed, and a gas formed by evaporating a &bgr;-diketone derivative from which dissolved oxygen is removed; and after the initial period of said supplying of the raw material gas into the substrate processing chamber, stopping said supplying of the addition gas while continuing said supplying of the raw material gas.