Patents by Inventor Prashant A. DESAI

Prashant A. DESAI 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: 20250250677
    Abstract: Embodiments described herein generally pertain to a system and method for resource sharing among processing stations in a substrate processing system. The system including at least a first processing chamber with a first processing volume, a substrate support disposed within the first processing volume having a first backside gas delivery port, a backside gas conduit, a gas delivery port, a first inlet valve between a central junction and an inlet junction, and a first bypass valve between the central junction and a first bypass port. The system includes a pressure controller with an inlet and outlet; the outlet connects to the inlet junction. Also, a flow-regulating orifice with an inlet coupled to a gas source and an outlet communicating with the pressure controller's inlet.
    Type: Application
    Filed: February 6, 2024
    Publication date: August 7, 2025
    Inventors: Thomas BREZOCZKY, Lakshmikanth Krishnamurthy SHIRAHATTI, Prashant A. DESAI, Kirankumar SAVANDAIAH
  • Publication number: 20230116153
    Abstract: Aspects of the disclosure provided herein generally relate to a fluid flow network configured to cool subsystems of a substrate processing system. Aspects of the disclosure provide a fluid flow network and method that adjusts the flow of the cooling fluid through each subsystem of the substrate processing system. The methods described herein can include maintaining a flow rate of the cooling fluid through each subsystem over a range of cooling fluid pressures. The methods described herein can further include configuring the fluid flow network to equalize a flow rate of the cooling fluid through similar subsystems such that the flow rate through each subsystem is similar without adjustment.
    Type: Application
    Filed: June 28, 2022
    Publication date: April 13, 2023
    Inventors: Lakshmikanth Krishnamurthy SHIRAHATTI, Kirankumar Neelasandra SAVANDAIAH, Prashant A. DESAI, Thomas BREZOCZKY
  • Patent number: 11598004
    Abstract: The present disclosure relates to a lid assembly apparatus and related methods for substrate processing chambers. In one implementation, a lid assembly includes a gas manifold. The gas manifold includes a first gas channel configured to receive a process gas, a second gas channel configured to receive a doping gas, and a third gas channel configured to receive a cleaning gas. The lid assembly also includes a showerhead. The showerhead includes one or more first gas openings that are configured to receive the process gas, and one or more second gas openings that are configured to receive the doping gas.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: March 7, 2023
    Assignee: APPLIED MATERIALS, iNC.
    Inventors: Hanish Kumar Panavalappil Kumarankutty, Prashant A. Desai, Diwakar N. Kedlaya, Sumit Agarwal, Vidyadharan Srinivasa Murthy Bangalore, Truong Nguyen, Zubin Huang
  • Publication number: 20220093371
    Abstract: Exemplary semiconductor processing systems include a chamber body having sidewalls and a base. The systems may include a substrate support extending through the base. The substrate support may include a support plate defining lift pin locations and a shaft coupled with the support plate. The systems may include a shield coupled with the shaft and extending below the support plate. The shield may define a central aperture that extends beyond an outer periphery of the shaft. The systems may include a purge baffle coupled with the shield at a position that is beyond the central aperture such that a space between the purge baffle and the shaft is in fluid communication with a space between the shield and the support plate. The purge baffle may extend along at least a portion of the shaft. The systems may include a purge gas source coupled with the purge baffle.
    Type: Application
    Filed: September 21, 2020
    Publication date: March 24, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Zubin Huang, Truong Van Nguyen, Rui Cheng, Diwakar Kedlaya, Manjunath Veerappa Chobari Patil, Prashant A. Desai, Paul L. Brillhart, Karthik Janakiraman, Pavan Kumar Murali Kumar
  • Publication number: 20200291522
    Abstract: The present disclosure relates to a lid assembly apparatus and related methods for substrate processing chambers. In one implementation, a lid assembly includes a gas manifold. The gas manifold includes a first gas channel configured to receive a process gas, a second gas channel configured to receive a doping gas, and a third gas channel configured to receive a cleaning gas. The lid assembly also includes a showerhead. The showerhead includes one or more first gas openings that are configured to receive the process gas, and one or more second gas openings that are configured to receive the doping gas.
    Type: Application
    Filed: February 26, 2020
    Publication date: September 17, 2020
    Inventors: Hanish Kumar PANAVALAPPIL KUMARANKUTTY, Prashant A. DESAI, Diwakar N. KEDLAYA, Sumit AGARWAL, Vidyadharan Srinivasa Murthy BANGALORE, Truong NGUYEN, Zubin HUANG