Patents by Inventor Bhargav S. CITLA

Bhargav S. CITLA 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: 20200105541
    Abstract: A method of converting films is disclosed. A method of modifying films is also disclosed. Some methods advantageously convert films from a first elemental composition to a second elemental composition. Some methods advantageously modify film properties without modifying film composition.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 2, 2020
    Inventors: Erica Chen, Chentsau Chris Ying, Bhargav S. Citla, Jethro Tannos, Matthew August Mattson
  • Publication number: 20200090946
    Abstract: Embodiments of the present invention provide an apparatus and methods for depositing a dielectric material using RF bias pulses along with remote plasma source deposition for manufacturing semiconductor devices, particularly for filling openings with high aspect ratios in semiconductor applications. In one embodiment, a method of depositing a dielectric material includes providing a gas mixture into a processing chamber having a substrate disposed therein, forming a remote plasma in a remote plasma source and delivering the remote plasma to an interior processing region defined in the processing chamber, applying a RF bias power to the processing chamber in pulsed mode, and forming a dielectric material in an opening defined in a material layer disposed on the substrate in the presence of the gas mixture and the remote plasma.
    Type: Application
    Filed: September 17, 2018
    Publication date: March 19, 2020
    Inventors: Bhargav S. CITLA, Jethro TANNOS, Jingyi LI, Douglas A. BUCHBERGER, JR., Zhong Qiang HUA, Srinivas D. NEMANI, Ellie Y. YIEH
  • Publication number: 20190348283
    Abstract: Embodiments described herein provide for post deposition anneal of a substrate, having an amorphous carbon layer deposited thereon, to desirably reduce variations in local stresses thereacross. In one embodiment, a method of processing a substrate includes positioning a substrate, having an amorphous carbon layer deposited thereon, in a first processing volume, flowing an anneal gas into the first processing volume, heating the substrate to an anneal temperature of not more than about 450° C., and maintaining the substrate at the anneal temperature for about 30 seconds or more. Herein, the amorphous carbon layer was deposited on the substrate using a method which included positioning the substrate on a substrate support disposed in a second processing volume, flowing a processing gas into the second processing volume, applying pulsed DC power to a carbon target disposed in the second processing volume, forming a plasma of the processing gas, and depositing the amorphous carbon layer on the substrate.
    Type: Application
    Filed: April 26, 2019
    Publication date: November 14, 2019
    Inventors: Bhargav S. CITLA, Mei-Yee SHEK, Srinivas D. NEMANI