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:
A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas comprising carbon at a constant RF power level. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.
摘要:
A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas comprising carbon at a constant RF power level. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.
摘要:
Semiconductor devices suitable for narrow pitch applications and methods of fabrication thereof are described herein. In some embodiments, a semiconductor device may include a floating gate having a first width proximate a base of the floating gate that is greater than a second width proximate a top of the floating gate. In some embodiments, a method of shaping a material layer may include (a) oxidizing a surface of a material layer to form an oxide layer at an initial rate; (b) terminating formation of the oxide layer when the oxidation rate is about 90% or below of the initial rate; (c) removing at least some of the oxide layer by an etching process; and (d) repeating (a) through (c) until the material layer is formed to a desired shape. In some embodiments, the material layer may be a floating gate of a semiconductor device.
摘要:
A flash memory device comprises a substrate comprising silicon with a silicon dioxide layer thereon. A silicon-oxygen-nitrogen layer is on the silicon dioxide layer, and the silicon-oxygen-nitrogen layer comprises a shaped concentration level profile of oxygen through the thickness of the layer. A blocking dielectric layer is on the silicon-oxygen-nitrogen layer, and a gate electrode is on the blocking dielectric layer. Oxygen ions can be implanted into a silicon nitride layer to form the silicon-oxygen-nitrogen layer.
摘要:
A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas at a constant RF power level from about 10W to about 200W or a pulsed RF power level from about 20W to about 500W. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers. A preferred oxidized organosilane film is produced by reaction of methylsilane, CH3SiH3, or dimethylsilane, (CH3)2SiH2, and nitrous oxide, N2O, at a constant RF power level from about 10W to about 150W, or a pulsed RF power level from about 20W to about 250W during 10% to 30% of the duty cycle.
摘要:
A flash memory device comprises a substrate comprising silicon with a silicon dioxide layer thereon. A silicon-oxygen-nitrogen layer is on the silicon dioxide layer, and the silicon-oxygen-nitrogen layer comprises a shaped concentration level profile of oxygen through the thickness of the layer. A blocking dielectric layer is on the silicon-oxygen-nitrogen layer, and a gate electrode is on the blocking dielectric layer. Oxygen ions can be implanted into a silicon nitride layer to form the silicon-oxygen-nitrogen layer.
摘要:
A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas at a constant RF power level from about 10 W to about 200 W or a pulsed RF power level from about 20 W to about 500 W. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers. A preferred oxidized organosilane film is produced by reaction of methylsilane, CH3SiH3, or dimethylsilane, (CH3)2SiH2, and nitrous oxide, N2O; at a constant RF power level from about 10 W to about 150 W, or a pulsed RF power level from about 20 W to about 250 W during 10% to 30% of the duty cycle.
摘要:
A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas comprising carbon at a constant RF power level. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers.
摘要:
A method and apparatus for depositing a low dielectric constant film by reaction of an organosilicon compound and an oxidizing gas at a constant RF power level from about 10W to about 200W or a pulsed RF power level from about 20W to about 500W. Dissociation of the oxidizing gas can be increased prior to mixing with the organosilicon compound, preferably within a separate microwave chamber, to assist in controlling the carbon content of the deposited film. The oxidized organosilane or organosiloxane film has good barrier properties for use as a liner or cap layer adjacent other dielectric layers. The oxidized organosilane or organosiloxane film may also be used as an etch stop and an intermetal dielectric layer for fabricating dual damascene structures. The oxidized organosilane or organosiloxane films also provide excellent adhesion between different dielectric layers. A preferred oxidized organosilane film is produced by reaction of methylsilane, CH3SiH3, dimethylsilane, (CH3)2SiH2, or 1,1,3,3-tetramethyl-disiloxane, (CH3)2—SiH—O—SiH—(CH3)2, and nitrous oxide, N2O, at a constant RF power level from about 10W to about 150W, or a pulsed RF power level from about 20W to about 250W during 10% to 30% of the duty cycle.