摘要:
Stability of an underlying dielectric diffusion barrier during deposition and ultraviolet (UV) processing of an overlying dielectric layer is critical for successful integration. UV-resistant diffusion barrier layers are formed by depositing the layer in a hydrogen-starved environment. Diffusion barrier layers can be made more resistant to UV radiation by thermal, plasma, or UV treatment during or after deposition. Lowering the modulus of the diffusion barrier layer can also improve the resistance to UV radiation.
摘要:
Methods and apparatus of the present invention deposit fluorinated silicate glass (FSG) in such a manner that it strongly adheres to an overlying or underlying barrier layer or etch stop layer, and has a lower dielectric constant, among other benefits. In one embodiment, silicon tetrafluoride (SiF4), oxygen (O2), and argon (Ar) are used as the reactant gases, with the ratio of oxygen to silicon controlled to be at between about 2:1 to 6:1. Such O2 levels help reduce the amount of degradation of ceramic chamber components otherwise caused by the elimination of silane from the process recipe.
摘要:
A method for depositing a low dielectric constant film includes providing a gas mixture including a cyclic organosiloxane and N2O as an oxidizing gas to a chamber and applying RF power to the gas mixture to deposit a low dielectric constant film. The gas mixture may also include oxygen and/or a linear hydrocarbon. In one aspect, the gas mixture includes N2O and oxygen as oxidizing gases, and a ratio of the flow rate of the N2O to a total flow rate of the N2O and the oxygen is between about 0.1 and about 0.5.
摘要翻译:一种沉积低介电常数膜的方法包括:向室内提供包含环状有机硅氧烷和N 2 O 2的气体混合物作为氧化气体,并将RF功率施加到气体混合物以沉积低介电常数 电影。 气体混合物还可以包括氧和/或直链烃。 在一个方面,气体混合物包括N 2 O 3和氧气作为氧化气体,并且N 2 O 2的流量与总体流速的比率 N 2 O,氧在约0.1至约0.5之间。
摘要:
A variety of techniques may be employed, separately or in combination, to improve the gap-filling performance of a dielectric material formed by chemical vapor deposition (CVD). In one approach, a first dielectric layer is deposited using sub-atmospheric chemical vapor deposition (SACVD), followed by a second dielectric layer deposited by high density plasma chemical vapor deposition (HDP-CVD) or plasma-enhanced chemical vapor deposition (PECVD). In another approach, a SACVD dielectric layer is deposited in the presence of reactive ionic species flowed from a remote plasma chamber into the processing chamber, which performs etching during the deposition process. In still another approach, high aspect trenches may be filled utilizing SACVD in combination with oxide layers deposited at high temperatures.
摘要:
Methods and apparatus of the present invention deposit fluorinated silicate glass (FSG) in such a manner that it strongly adheres to an overlying or underlying barrier layer or etch stop layer, and has a lower dielectric constant, among other benefits. In one embodiment, silicon tetrafluoride (SiF4), oxygen (O2), and argon (Ar) are used as the reactant gases, with the ratio of oxygen to silicon controlled to be at between about 2:1 to 6:1. Such O2 levels help reduce the amount of degradation of ceramic chamber components otherwise caused by the elimination of silane from the process recipe.