Patents by Inventor Anirudhan Chandrasekaran

Anirudhan Chandrasekaran 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).

  • Publication number: 20230227965
    Abstract: The disclosure relates to the manufacture of semiconductor devices, especially to methods and processing assemblies for forming a patterned structure on a substrate. The methods comprise providing the substrate comprising a first structure into a reaction chamber, wherein a surface of the first structure comprises a first material and the substrate comprises a second material, and selectively depositing a conformal passivation layer on the first material relative to the second material to cover the first structure, and selectively depositing an etch-stop layer on the second material relative to the passivation layer. In some embodiments, a multiple patterning or a tone reversal of a pattern may be performed using the methods and deposition assemblies of the disclosure.
    Type: Application
    Filed: January 12, 2023
    Publication date: July 20, 2023
    Inventors: Shaoren Deng, David Kurt de Roest, Vincent Vandalon, Anirudhan Chandrasekaran, YongGyu Han, Marko Tuominen
  • Publication number: 20230140812
    Abstract: The present disclosure relates to methods and apparatuses for selectively depositing silicon and oxygen-comprising material on a first surface of a substrate relative to a second surface of the substrate by a cyclic deposition process, the method comprising providing a substrate in a reaction chamber; providing a metal or metalloid catalyst to the reaction chamber in a vapor phase; providing a silicon precursor comprising an alkoxy silane compound into the reaction chamber in a vapor phase; and providing an oxygen precursor comprising oxygen and hydrogen into the reaction chamber in vapor phase to form silicon and oxygen-comprising material on the first surface. The disclosure further relates to vapor deposition assemblies.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 4, 2023
    Inventors: Daniele Chiappe, Eva Tois, Viraj Madhiwala, Marko Tuominen, Anirudhan Chandrasekaran, Andrea Illiberi, Shaoren Deng, Charles Dezelah, Vincent Vandalon, YongGyu Han, Michael Givens
  • Publication number: 20230140367
    Abstract: Methods and vapor deposition assemblies of selectively depositing material comprising silicon and oxygen on a first surface of a substrate relative to a second surface of the substrate by a cyclic deposition process are disclosed. The methods comprise providing a substrate into a reaction chamber, providing a metal or metalloid catalyst into the reaction chamber in a vapor phase, providing a silicon precursor comprising an alkoxy silane compound into the reaction chamber in a vapor phase and providing a plasma into the reaction chamber to form a reactive species for forming a material comprising silicon and oxygen on the first surface. The methods may comprise subcycles for, for example, adjusting the proportions of material components.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 4, 2023
    Inventors: Viraj Madhiwala, Daniele Chiappe, Eva Tois, Marko Tuominen, Charles Dezelah, Shaoren Deng, Anirudhan Chandrasekaran, YongGyu Han, Michael Givens, Andrea llliberi, Vincent Vandalon
  • Publication number: 20230139917
    Abstract: Methods and vapor deposition assemblies of selectively depositing dielectric material on a first surface of a substrate relative to a second surface of the substrate by a cyclic deposition process are disclosed. The methods comprise providing a substrate into a reaction chamber, performing a thermal deposition subcycle performing a thermal deposition subcycle to selectively deposit a first material on the first surface, performing a plasma deposition subcycle to selectively deposit a second material on the first surface; wherein at least one of the first material and the second material comprises silicon and oxygen.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 4, 2023
    Inventors: Eva Tois, Viraj Madhiwala, Daniele Chiappe, Marko Tuominen, Shaoren Deng, Anirudhan Chandrasekaran, YongGuy Han, Michael Givens, Andrea Illiberi, Vincent Vandalon
  • Publication number: 20230098114
    Abstract: The present disclosure relates to methods and apparatuses for the manufacture of semiconductor devices. More particularly, the disclosure relates to methods and apparatuses for depositing an organic layer selectively on a substrate comprising at least two different surfaces. The process comprises providing a substrate in a reaction chamber, providing a first vapor-phase precursor in the reaction chamber, and providing a second vapor-phase precursor in the reaction chamber. In the method, the first and second vapor-phase precursors form the organic material selectively on the first surface relative to the second surface, and the first vapor-phase precursor comprises a diamine compound comprising at least five carbon atoms and the amine groups being attached to non-adjacent carbon atoms.
    Type: Application
    Filed: September 29, 2022
    Publication date: March 30, 2023
    Inventors: Eva Tois, Daniele Chiappe, Marko Tuominen, Viraj Madhiwala, Charles Dezelah, YongGyu Han, Anirudhan Chandrasekaran, Shaoren Deng
  • Publication number: 20220068634
    Abstract: Methods for cleaning a substrate are disclosed. The substrate comprises a dielectric surface and a metal surface. The methods comprise providing a cleaning agent to the reaction chamber.
    Type: Application
    Filed: August 20, 2021
    Publication date: March 3, 2022
    Inventors: Shaoren Deng, Andrea Illiberi, Daniele Chiappe, Eva Tois, Giuseppe Alessio Verni, Michael Givens, Varun Sharma, Chiyu Zhu, Shinya Iwashita, Charles Dezelah, Viraj Madhiwala, Jan Willem Maes, Marko Tuominen, Anirudhan Chandrasekaran