Patent ID: 6767829
Filing Date: 2004-07-27
Classification: C23C,H01J,H01L

Abstract:
A plasma deposition method for carrying out a plasma deposition using a plasma processing system comprising:a vacuum vessel, first and second electrodes which are provided in the vacuum vessel and which face each other in parallel, and first and second high-frequency power supplies capable of applying high-frequency powers having different frequencies to the respective electrodes, respectively, wherein a predetermined deposition gas is introduced into a space between said electrodes, and the first high-frequency power having a predetermined frequency selected from the range of from 2 MHz to 9 MHz and the second high-frequency power having a predetermined frequency selected from the range of 50 MHz or higher are applied to said first and second electrodes, respectively, to produce plasma to deposit a silicon oxide film, which contains a predetermined material having a lower dielectric constant than the dielectric constant of a silicon oxide film, on an object to be processed, which is mounted on said first electrode, and wherein said deposition gas contains at least one of an alkyl silane gas and alkoxy silane gas, and hydrogen gas.