Patents by Inventor Srividya Natarajan

Srividya Natarajan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11965241
    Abstract: In one aspect, a process operation is conducted at a first pressure in a process chamber, and an epitaxial deposition operation is conducted at an atmospheric pressure in an epitaxial deposition chamber. The atmospheric pressure is greater than the first pressure. The process chamber is mounted to a first mainframe that operates at the first pressure (a reduced pressure), and the epitaxial deposition chamber is mounted to a second mainframe that operates at the atmospheric chamber. In one aspect, the process chamber is a cleaning chamber (such as a pre-clean chamber) and the process operation is a cleaning operation. In one aspect, the process chamber is an atmospheric pressure epitaxial deposition chamber and the process operation is an atmospheric pressure epitaxial deposition operation.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: April 23, 2024
    Assignee: Applied Materials, Inc.
    Inventors: Saurabh Chopra, Martin Jeffrey Salinas, Masato Ishii, Sheng-Chen Twan, Srividya Natarajan
  • Publication number: 20230243068
    Abstract: Embodiments generally relate to methods for depositing silicon-phosphorous materials, and more specifically, relate to using silicon-phosphorous compounds in vapor deposition processes (e.g., epitaxy, CVD, or ALD) to deposit silicon-phosphorous materials. In one or more embodiments, a method for forming a silicon-phosphorous material on a substrate is provided and includes exposing the substrate to a deposition gas containing one or more silicon-phosphorous compounds during a deposition process and depositing a film containing the silicon-phosphorous material on the substrate. The silicon-phosphorous compound has the chemical formula [(R3-vHvSi)—(R2-wHwSi)n]xPHyR?z, where each instance of R and each instance of R? are independently an alkyl or a halogen, n is 0, 1, or 2; v is 0, 1, 2, or 3; w is 0, 1, or 2; x is 1, 2, or 3; y is 0, 1, or 2; z is 0, 1, or 2, and where x+y+z=3.
    Type: Application
    Filed: April 5, 2023
    Publication date: August 3, 2023
    Inventors: Errol Antonio C. SANCHEZ, Mark J. SALY, Schubert CHU, Abhishek DUBE, Srividya NATARAJAN
  • Patent number: 11649560
    Abstract: Embodiments generally relate to methods for depositing silicon-phosphorous materials, and more specifically, relate to using silicon-phosphorous compounds in vapor deposition processes (e.g., epitaxy, CVD, or ALD) to deposit silicon-phosphorous materials. In one or more embodiments, a method for forming a silicon-phosphorous material on a substrate is provided and includes exposing the substrate to a deposition gas containing one or more silicon-phosphorous compounds during a deposition process and depositing a film containing the silicon-phosphorous material on the substrate. The silicon-phosphorous compound has the chemical formula [(R3-vHvSi)—(R2-wHwSi)n]xPHyR?z, where each instance of R and each instance of R? are independently an alkyl or a halogen, n is 0, 1, or 2; v is 0, 1, 2, or 3; w is 0, 1, or 2; x is 1, 2, or 3; y is 0, 1, or 2; z is 0, 1, or 2, and where x+y+z=3.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: May 16, 2023
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Errol Antonio C Sanchez, Mark J. Saly, Schubert Chu, Abhishek Dube, Srividya Natarajan
  • Publication number: 20230075715
    Abstract: In one aspect, a process operation is conducted at a first pressure in a process chamber, and an epitaxial deposition operation is conducted at an atmospheric pressure in an epitaxial deposition chamber. The atmospheric pressure is greater than the first pressure. The process chamber is mounted to a first mainframe that operates at the first pressure (a reduced pressure), and the epitaxial deposition chamber is mounted to a second mainframe that operates at the atmospheric chamber. In one aspect, the process chamber is a cleaning chamber (such as a pre-clean chamber) and the process operation is a cleaning operation. In one aspect, the process chamber is an atmospheric pressure epitaxial deposition chamber and the process operation is an atmospheric pressure epitaxial deposition operation.
    Type: Application
    Filed: July 20, 2022
    Publication date: March 9, 2023
    Inventors: Saurabh CHOPRA, Martin Jeffrey SALINAS, Masato ISHII, Sheng-Chen TWAN, Srividya NATARAJAN
  • Publication number: 20200399784
    Abstract: Embodiments generally relate to methods for depositing silicon-phosphorous materials, and more specifically, relate to using silicon-phosphorous compounds in vapor deposition processes (e.g., epitaxy, CVD, or ALD) to deposit silicon-phosphorous materials. In one or more embodiments, a method for forming a silicon-phosphorous material on a substrate is provided and includes exposing the substrate to a deposition gas containing one or more silicon-phosphorous compounds during a deposition process and depositing a film containing the silicon-phosphorous material on the substrate. The silicon-phosphorous compound has the chemical formula [(R3-vHvSi)—(R2-wHwSi)n]xPHyR?z, where each instance of R and each instance of R? are independently an alkyl or a halogen, n is 0, 1, or 2; v is 0, 1, 2, or 3; w is 0, 1, or 2; x is 1, 2, or 3; y is 0, 1, or 2; z is 0, 1, or 2, and where x+y+z=3.
    Type: Application
    Filed: August 2, 2019
    Publication date: December 24, 2020
    Inventors: Errol Antonio C Sanchez, Mark J. Saly, Schubert Chu, Abhishek Dube, Srividya Natarajan
  • Patent number: 10170321
    Abstract: Described are methods of depositing a titanium aluminum nitride film on a substrate surface with a controlled amount of carbon. The methods include exposing a substrate surface to a titanium precursor, a nitrogen reactant and an aluminum precursor with purges of the unreacted titanium and aluminum precursors and unreacted nitrogen reactants between each exposure.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: January 1, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Wenyu Zhang, Wei V. Tang, Yixiong Yang, Chen-Han Lin, Yi Xu, Yu Lei, Naomi Yoshida, Lin Dong, Drew Phillips, Srividya Natarajan, Atashi Basu, Kaliappan Muthukumar, David Thompson, Paul F. Ma
  • Publication number: 20180269065
    Abstract: Described are methods of depositing a titanium aluminum nitride film on a substrate surface with a controlled amount of carbon. The methods include exposing a substrate surface to a titanium precursor, a nitrogen reactant and an aluminum precursor with purges of the unreacted titanium and aluminum precursors and unreacted nitrogen reactants between each exposure.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 20, 2018
    Inventors: Wenyu Zhang, Wei V. Tang, Yixiong Yang, Chen-Han Lin, Yi Xu, Yu Lei, Naomi Yoshida, Lin Dong, Drew Phillips, Srividya Natarajan, Atashi Basu, Kaliappan Muthukumar, David Thompson, Paul F. Ma