摘要:
A method of etching a substrate is provided. The method of etching a substrate includes transferring a pattern into the substrate using a double patterned amorphous carbon layer on the substrate as a hardmask. Optionally, a non-carbon based layer is deposited on the amorphous carbon layer as a capping layer before the pattern is transferred into the substrate.
摘要:
Embodiments in accordance with the present invention relate to a number of techniques, which may be applied alone or in combination, to reduce charge damage of substrates exposed to electron beam radiation. In one embodiment, charge damage is reduced by establishing a robust electrical connection between the exposed substrate and ground. In another embodiment, charge damage is reduced by modifying the sequence of steps for activating and deactivating the electron beam source to reduce the accumulation of charge on the substrate. In still another embodiment, a plasma is struck in the chamber containing the e-beam treated substrate, thereby removing accumulated charge from the substrate. In a further embodiment of the present invention, the voltage of the anode of the e-beam source is reduced in magnitude to account for differences in electron conversion efficiency exhibited by different cathode materials.
摘要:
A method for seasoning a deposition chamber wherein the chamber components and walls are densely coated with a material that does not contain carbon prior to deposition of an organo-silicon material on a substrate. An optional carbon-containing layer may be deposited therebetween. A chamber cleaning method using low energy plasma and low pressure to remove residue from internal chamber surfaces is provided and may be combined with the seasoning process.
摘要:
Methods are provided for depositing a doped barrier layer material having a low dielectric constant. In one aspect, the invention provides a method for processing a substrate including depositing a barrier layer on the substrate by introducing a processing gas comprising an organosilicon compound, at least one dopant containing gas, hydrogen gas, and, optionally, an inert gas into a processing chamber, reacting the processing gas to deposit the barrier layer, and depositing a first dielectric layer adjacent the barrier layer. The organosilicon compound may comprise a phenylsilane containing compound or an aliphatic organosilicon compound. The processing gas may further comprise an oxygen containing compound, a nitrogen containing compound, or both.
摘要:
A method of processing a substrate including depositing a low dielectric constant film comprising silicon, carbon, and oxygen on the substrate and depositing an oxide rich cap on the low dielectric constant film is provided. The low dielectric constant film is deposited from a gas mixture comprising an organosilicon compound and an oxidizing gas in the presence of RF power in a chamber. The RF power and a flow of the organosilicon compound and the oxidizing gas are continued in the chamber after the deposition of the low dielectric constant film at flow rates sufficient to deposit an oxide rich cap on the low dielectric constant film.
摘要:
A method of forming an integrated circuit using a fluoro-organosilicate layer is disclosed. The fluoro-organosilicate layer is formed by applying an electric field to a gas mixture comprising a fluoro-organosilane compound and an oxidizing gas. The fluoro-organosilicate layer is compatible with integrated circuit fabrication processes. In one integrated circuit fabrication process, the fluoro-organosilicate layer is used as a hardmask. In another integrated circuit fabrication process, the fluoro-organosilicate layer is incorporated into a damascene structure.
摘要:
A method and apparatus for controlling the introduction of contaminates into a deposition chamber that occur naturally within the chamber components. The CVD chamber is "seasoned" with a protective layer after a dry clean operation and before a substrate is introduced into the chamber. The deposited seasoning layer has a lower diffusion rate for typical contaminants in relation to the chamber component materials and covers the chamber component, reducing the likelihood that the naturally occurring contaminants will interfere with subsequent processing steps. After deposition of the seasoning layer is complete, the chamber is used for one to n substrate deposition steps before being cleaned by another clean operation as described above and then reseasoned.
摘要:
High tensile stress in a deposited layer such as silicon nitride, may be achieved utilizing one or more techniques, employed alone or in combination. High tensile stress may be achieved by forming a silicon-containing layer on a surface by exposing the surface to a silicon-containing precursor gas in the absence of a plasma, forming silicon nitride by exposing said silicon-containing layer to a nitrogen-containing plasma, and then repeating these steps to increase a thickness of the silicon nitride created thereby. High tensile stress may also be achieved by exposing a surface to a silicon-containing precursor gas in a first nitrogen-containing plasma, treating the material with a second nitrogen-containing plasma, and then repeating these steps to increase a thickness of the silicon nitride formed thereby. In another embodiment, tensile film stress is enhanced by deposition with porogens that are liberated upon subsequent exposure to UV radiation or plasma treatment.
摘要:
Methods and apparatus for electron beam treatment of a substrate are provided. An electron beam apparatus that includes a vacuum chamber, at least one thermocouple assembly in communication with the vacuum chamber, a heating device in communication with the vacuum chamber, and combinations thereof are provided. In one embodiment, the vacuum chamber comprises an electron source wherein the electron source comprises a cathode connected to a high voltage source, an anode connected to a low voltage source, and a substrate support. In another embodiment, the vacuum chamber comprises a grid located between the anode and the substrate support. In one embodiment the heating device comprises a first parallel light array and a second light array positioned such that the first parallel light array and the second light array intersect. In one embodiment the thermocouple assembly comprises a temperature sensor made of aluminum nitride.
摘要:
Compressive stress in a film of a semiconductor device may be controlled utilizing one or more techniques, employed alone or in combination. A first set of embodiments increase silicon nitride compressive stress by adding hydrogen to the deposition chemistry, and reduce defects in a device fabricated with a high compressive stress silicon nitride film formed in the presence of hydrogen gas. A silicon nitride film may comprise an initiation layer formed in the absence of a hydrogen gas flow, underlying a high stress nitride layer formed in the presence of a hydrogen gas flow. A silicon nitride film formed in accordance with an embodiment of the present invention may exhibit a compressive stress of 2.8 GPa or higher.