摘要:
In one embodiment, the system includes a gas supply assembly having a first gas source, a first gas conduit coupled to the first gas source, a first valve assembly, a reaction chamber, and a gas distributor carried by the reaction chamber. The first valve assembly includes first and second valves that are in fluid communication with the first gas conduit. The first and second valves are configured in a parallel arrangement so that the first gas flows through the first valve and/or the second valve.
摘要:
Systems and methods for insitu post atomic layer deposition (ALD) destruction of active species are provided. ALD processes deposit multiple atomic layers on a substrate. Pre-cursor gases typically enter a reactor and react with the substrate resulting in a monolayer of atoms. After the remaining gas is purged from the reactor, a second pre-cursor gas enters the reactor and the process is repeated. The active species of some pre-cursor gases do not readily purge from the reactor, thus increasing purge time and decreasing throughput. A high-temperature surface placed in the reactor downstream from the substrate substantially destroys the active species insitu. Substantially destroying the active species allows the reactor to be readily purged, increasing throughput.
摘要:
This invention includes atomic layer deposition methods of depositing oxide comprising layers on substrates. In one implementation, a substrate is positioned within a deposition chamber. A first species is chemisorbed to form a first species monolayer onto the substrate within the deposition chamber from a gaseous first precursor. The chemisorbed first species is contacted with a gaseous second precursor effective to react with the first species to form an oxide of a component of the first species monolayer. The contacting at least in part results from flowing O3 to the deposition chamber, with the O3 being at a temperature of at least 170° C. at a location where it is emitted into the deposition chamber. The chemisorbing and the contacting are successively repeated to form an oxide comprising layer on the substrate. Additional aspects and implementations are contemplated.
摘要:
This invention includes atomic layer deposition methods of depositing oxide comprising layers on substrates. In one implementation, a substrate is positioned within a deposition chamber. A first species is chemisorbed to form a first species monolayer onto the substrate within the deposition chamber from a gaseous first precursor. The chemisorbed first species is contacted with a gaseous second precursor effective to react with the first species to form an oxide of a component of the first species monolayer. The contacting at least in part results from flowing O3 to the deposition chamber, with the O3 being at a temperature of at least 170° C. at a location where it is emitted into the deposition chamber. The chemisorbing and the contacting are successively repeated to form an oxide comprising layer on the substrate. Additional aspects and implementations are contemplated.
摘要:
This invention includes atomic layer deposition methods of depositing oxide comprising layers on substrates. In one implementation, a substrate is positioned within a deposition chamber. A first species is chemisorbed to form a first species monolayer onto the substrate within the deposition chamber from a gaseous first precursor. The chemisorbed first species is contacted with a gaseous second precursor effective to react with the first species to form an oxide of a component of the first species monolayer. The contacting at least in part results from flowing O3 to the deposition chamber, with the O3 being at a temperature of at least 170° C. at a location where it is emitted into the deposition chamber. The chemisorbing and the contacting are successively repeated to form an oxide comprising layer on the substrate. Additional aspects and implementations are contemplated.
摘要:
Systems and methods for insitu post atomic layer deposition (ALD) destruction of active species are provided. ALD processes deposit multiple atomic layers on a substrate. Pre-cursor gases typically enter a reactor and react with the substrate resulting in a monolayer of atoms. After the remaining gas is purged from the reactor, a second pre-cursor gas enters the reactor and the process is repeated. The active species of some pre-cursor gases do not readily purge from the reactor, thus increasing purge time and decreasing throughput. A high-temperature surface placed in the reactor downstream from the substrate substantially destroys the active species insitu. Substantially destroying the active species allows the reactor to be readily purged, increasing throughput.
摘要:
The invention includes methods of utilizing supercritical fluids to introduce precursors into reaction chambers. In some aspects, a supercritical fluid is utilized to introduce at least one precursor into a chamber during ALD, and in particular aspects the supercritical fluid is utilized to introduce multiple precursors into the reaction chamber during ALD. The invention can be utilized to form any of various materials, including metal-containing materials, such as, for example, metal oxides, metal nitrides, and materials consisting of metal. Metal oxides can be formed by utilizing a supercritical fluid can be utilized to introduce a metal-containing precursor into reaction chamber, with the precursor then forming a metal-containing layer over a surface of a substrate. Subsequently, the metal-containing layer can be reacted with oxygen to convert at least some of the metal within the layer to metal oxide.
摘要:
The invention includes methods of utilizing supercritical fluids to introduce precursors into reaction chambers. In some aspects, a supercritical fluid is utilized to introduce at least one precursor into a chamber during ALD, and in particular aspects the supercritical fluid is utilized to introduce multiple precursors into the reaction chamber during ALD. The invention can be utilized to form any of various materials, including metal-containing materials, such as, for example, metal oxides, metal nitrides, and materials consisting of metal. Metal oxides can be formed by utilizing a supercritical fluid can be utilized to introduce a metal-containing precursor into reaction chamber, with the precursor then forming a metal-containing layer over a surface of a substrate. Subsequently, the metal-containing layer can be reacted with oxygen to convert at least some of the metal within the layer to metal oxide.
摘要:
The invention includes methods of forming films over substrates. A substrate is provided within a reaction chamber, and a mixture is also provided within the chamber. The mixture includes a precursor of a desired material within a supercritical fluid. The precursor is relatively reactive under one set of conditions and is relatively non-reactive under another set of conditions. The precursor and supercritical fluid mixture is initially provided in the chamber under the conditions at which the precursor is relatively non-reactive. Subsequently, and while maintaining the supercritical state of the supercritical fluid, the conditions within the reaction chamber are changed to the conditions under which the precursor is relatively reactive. The precursor reacts to form the desired material, and at least some of the desired material forms a film on the substrate.
摘要:
The invention includes methods of forming films over substrates. A substrate is provided within a reaction chamber, and a mixture is also provided within the chamber. The mixture comprises a precursor of a desired material within a supercritical fluid. The precursor is relatively reactive under one set of conditions and is relatively non-reactive under another set of conditions. The precursor and supercritical fluid mixture is initially provided in the chamber under the conditions at which the precursor is relatively non-reactive. Subsequently, and while maintaining the supercritical state of the supercritical fluid, the conditions within the reaction chamber are changed to the conditions under which the precursor is relatively reactive. The precursor reacts to form the desired material, and at least some of the desired material forms a film on the substrate.