Abstract:
Embodiments of the present invention generally relate to methods for forming a flowable carbon-containing film on a substrate. In one embodiment, an oxygen-containing gas is flowed into a remote plasma region to produce oxygen-containing plasma effluents, and a carbon-containing gas is combined with the oxygen-containing plasma effluents in a substrate processing region which contains the substrate. A carbon-containing film is formed in trenches which are formed on the substrate and a low K dielectric material is deposited on the carbon-containing film in the trenches. The carbon-containing film is decomposed by an UV treatment and airgaps are formed in the trenches under the low K dielectric material.
Abstract:
One or more precursor gases, such as one or more silicon-containing gases, which may be one or more organosilicon and/or tetraalkyl orthosilicate gases, are introduced into a processing chamber and exposed to radicals. Dielectric films deposited using the techniques disclosed herein may contain silicon. The deposited films may exhibit few defects, low shrinkage, and high etch selectivity, mechanical stability, and thermal stability. The deposition conditions can be very mild, so damage to the substrate and the as-deposited films from UV radiation and ion bombardment is minimal or nonexistent.
Abstract:
Embodiments of the present invention generally provide methods for forming a silicon nitride layer on a substrate. In one embodiment, a method of forming a silicon nitride layer using remote plasma chemical vapor deposition (CVD) at a temperature that is less than 300 degrees Celsius is disclosed. The precursors for the remote plasma CVD process include tris(dimethylamino)silane (TRIS), dichlorosilane (DCS), trisilylamine (TSA), bis-t-butylaminosilane (BTBAS), hexachlorodisilane (HCDS) or hexamethylcyclotrisilazane (HMCTZ).