摘要:
Plasma etch processes incorporating etch chemistries which include hydrogen. In particular, high density plasma chemical vapor deposition-etch-deposition processes incorporating etch chemistries which include hydrogen that can effectively fill high aspect ratio (typically at least 3:1, for example 6:1, and up to 10:1 or higher), narrow width (typically sub 0.13 micron, for example 0.1 micron or less) gaps while reducing or eliminating chamber loading and redeposition and improving wafer-to-wafer uniformity relative to conventional deposition-etch-deposition processes which do not incorporate hydrogen in their etch chemistries.
摘要:
Biased plasma etch processes incorporating H2 etch chemistries. In particular, high density plasma chemical vapor etch-enhanced (deposition-etch-deposition) gap fill processes incorporating etch chemistries which incorporate hydrogen as the etchant that can effectively fill high aspect ratio gaps while reducing or eliminating dielectric contamination by etchant chemical species.
摘要翻译:掺杂H 2 O 3蚀刻化学品的偏置等离子体蚀刻工艺。 特别地,结合蚀刻化学的高密度等离子体化学气相蚀刻增强(沉积 - 蚀刻 - 沉积)间隙填充工艺,其中引入氢作为蚀刻剂,其可以有效地填充高纵横比间隙,同时减少或消除蚀刻剂化学物质的电介质污染。
摘要:
Plasma etch processes incorporating H2/Noble gas etch chemistries. In particular, high density plasma chemical vapor etch-enhanced (deposition-etch-deposition) gap fill processes incorporating etch chemistries which incorporate hydrogen and one or more Noble gases as the etchant that can effectively fill high aspect ratio gaps while reducing or eliminating dielectric contamination by etchant chemical species.
摘要:
Methods of filling gaps on semiconductor substrates with dielectric film are described. The methods reduce or eliminate sidewall deposition and top-hat formation. The methods also reduce or eliminate the need for etch steps during dielectric film deposition. The methods include treating a semiconductor substrate with a hydrogen plasma before depositing dielectric film on the substrate. In some embodiments, the hydrogen treatment is used is conjunction with a high rate deposition process.
摘要:
Plasma etch processes incorporating helium-based etch chemistries can remove dielectric a semiconductor applications. In particular, high density plasma chemical vapor etch-enhanced (deposition-etch-deposition) gap fill processes incorporating etch chemistries which incorporate helium as the etchant that can effectively fill high aspect ratio gaps while reducing or eliminating dielectric contamination by etchant chemical species.
摘要:
A fluorine-doped silica glass (FSG) dielectric layer includes a number of sublayers. Each sublayer is doped with fluorine in such a way that the doping concentration of fluorine in the sublayer decreases as one moves from an interior region of the sublayer towards one or both of the interfaces between the sublayer and adjacent sublayers. This structure reduces the generation of HF when the layer is exposed to moisture and thereby improves the stability and adhesion properties of the layer. The principles of this invention can also be applied to dielectric layers doped with such other dopants as boron, phosphorus or carbon.
摘要:
A plasma arc torch is disclosed which has an elongated electrode with an open front and a nozzle with a plasma discharge opening that is coaxial with the electrode. A mounting arrangement includes a ceramic ring that engages the front end of the electrode and a gas ring which concentrically surrounds the ceramic ring. A forward portion of the gas ring, the forward end of the electrode, and the nozzle define a swirl chamber of the torch, and opposing, spaced-apart concentric cylindrical surfaces of the ceramic ring and the gas ring, respectively, form an annulus which extends rearwardly from the swirl chamber. The ceramic ring closes the aft end of the annulus, and the gas ring houses a plurality of plasma gas injection ports which are located immediately forward of the aft end of the annulus. The entire plasma gas for the torch flows from the injection ports generally tangentially into the annulus to prevent a recirculation of gas into the annulus and to impart rotation to the gas after it leaves the ports and as it propagates towards the swirl chamber. The annulus is sufficiently long so that the injected gas spirals through about 5-20 revolutions before it enters the swirl chamber as a substantially uniform, single mass gas flow.