Patent ID: 6770332
Filing Date: 2004-08-03
Classification: C23C,H01L

Abstract:
A plasma thin-film deposition method for depositing an interlayer dielectric film on a semiconductor device to produce a multi-layered metallization structure, the method comprising:supplying a first gas; activating the first gas to form a first plasma; supplying a second gas comprising a compound gas of carbon and fluorine, a hydrocarbon gas, and an oxygen-containing gas having at least one gas selected from the group consisting of carbon monoxide, carbon dioxide, oxygen, water, and hydrogen peroxide; activating the second gas by the first plasma to form a second plasma; and depositing a fluorine-containing carbon film serving as the interlayer dielectric film on a substrate of the semiconductor device with the second plasma, wherein oxygen atoms in the oxygen-containing gas substantially react with graphite-like carbon-carbon bonds and/or unreacted substances in the fluorine-containing carbon film to substantially remove the graphite-like carbon-carbon bonds and/or the unreacted substances, so as to increase thermal stability of the fluorine-containing carbon film when compared to the fluorine-containing carbon film formed by the second gas having no oxygen.