Method and system to reduce outgassing in a reaction chamber
First Claim
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1. A method of reducing outgassing of a substance, the method comprising the steps of:
- providing a gas-phase reactor comprising a reaction chamber, the reaction chamber comprising a surface having hygroscopic material deposited thereon;
before providing a substrate within the reaction chamber, forming a barrier layer comprising one or more of TiO2, HfO2, SiO2, TiN, TiON, and TiC on the surface having hygroscopic material deposited thereon to mitigate outgassing of one or more gasses absorbed or adsorbed by the hygroscopic material;
providing the substrate within the reaction chamber;
depositing the hygroscopic material comprising one or more of lanthanum oxide, magnesium oxide, barium oxide, and strontium oxide onto a surface of the substrate within the reaction chamber, wherein depositing the hygroscopic material further comprises providing a scavenging precursor to the reaction chamber to react with material on a surface of the reaction chamber;
removing the substrate from the reaction chamber;
providing another substrate within the reaction chamber; and
depositing hygroscopic material onto the another substrate and removing the another substrate before repeating the step of forming a barrier layer comprising the one or more of TiO2, HfO2, SiO2, TiN, TiON, and TiC,wherein the scavenging precursor is substantially consumed prior to reaching the substrate.
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Abstract
Systems and methods of reducing outgassing of a substance within a reaction chamber of a reactor are disclosed. Exemplary methods include depositing a barrier layer within the reaction chamber and using a scavenging precursor to react with species on a surface of the reaction chamber. Exemplary systems include gas-phase deposition systems, such as atomic layer deposition systems, which include a barrier layer source and/or a scavenging precursor source fluidly coupled to a reaction chamber of the system.
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Citations
22 Claims
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1. A method of reducing outgassing of a substance, the method comprising the steps of:
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providing a gas-phase reactor comprising a reaction chamber, the reaction chamber comprising a surface having hygroscopic material deposited thereon; before providing a substrate within the reaction chamber, forming a barrier layer comprising one or more of TiO2, HfO2, SiO2, TiN, TiON, and TiC on the surface having hygroscopic material deposited thereon to mitigate outgassing of one or more gasses absorbed or adsorbed by the hygroscopic material; providing the substrate within the reaction chamber; depositing the hygroscopic material comprising one or more of lanthanum oxide, magnesium oxide, barium oxide, and strontium oxide onto a surface of the substrate within the reaction chamber, wherein depositing the hygroscopic material further comprises providing a scavenging precursor to the reaction chamber to react with material on a surface of the reaction chamber; removing the substrate from the reaction chamber; providing another substrate within the reaction chamber; and depositing hygroscopic material onto the another substrate and removing the another substrate before repeating the step of forming a barrier layer comprising the one or more of TiO2, HfO2, SiO2, TiN, TiON, and TiC, wherein the scavenging precursor is substantially consumed prior to reaching the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of reducing outgassing of a substance, the method comprising the steps of:
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providing a gas-phase reactor comprising a reaction chamber, the reaction chamber comprising a surface having hygroscopic material deposited thereon; before providing a substrate within the reaction chamber, forming a barrier layer comprising one or more of TiO2, Ta2O5, HfO2, SiO2, TiN, TiON, and TiC on the surface having hygroscopic material deposited thereon to mitigate outgassing of one or more gasses absorbed or adsorbed by the hygroscopic material; depositing hygroscopic material comprising one or more of lanthanum oxide, magnesium oxide, barium oxide, and strontium oxide onto a surface of the substrate within the reaction chamber, wherein depositing the hygroscopic material further comprises providing a scavenging precursor to the reaction chamber to react with material on a surface of the reaction chamber;
removing the substrate from the reaction chamber; anddepositing hygroscopic material on another substrate and removing the another substrate before repeating the step of forming a barrier layer comprising the one or more of TiO2, Ta2O5, HfO2, SiO2, TiN, TiON, and TiC, wherein the scavenging precursor is substantially consumed prior to reaching the substrate. - View Dependent Claims (21, 22)
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Specification