Patents by Inventor Karthik Narayanan BALAKRISHNAN

Karthik Narayanan BALAKRISHNAN 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: 20220319847
    Abstract: Methods and apparatus for laser patterning leverage mask trench debris removal techniques to form etch singulation trenches. In some embodiments, the method includes forming a mask layer on the wafer, forming a pattern in the mask layer using a laser of a laser assembly where the pattern allows singulation of the wafer by deep etching and forms a trench in the mask layer with a laser beam which has a process point at a bottom of the trench, directing gas nozzles that flow a pressurized gas at the process point in the trench as the pattern is formed with a gas flow angle relative to the process point and evacuating debris from the trench using an area of negative pressure where the gas flow from gas nozzles and the area of negative pressure are in fluid contact and are confined within a cylindrical housing.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 6, 2022
    Inventors: Karthik Narayanan BALAKRISHNAN, Jungrae PARK, Arunkumar TATTI, Sriskantharajah THIRUNAVUKARASU, Eng Sheng PEH
  • Patent number: 10537997
    Abstract: Embodiments described herein generally relate to an apparatus and method of performing a robot calibration process within a substrate processing system. In one embodiment, a calibration device is used to calibrate a robot having an end effector. The calibration device includes a body, a first side and a second side opposite to the first side. The calibration device further includes a sensor disposed on the second side of the body. In some embodiments, the sensor covers the entire second side of the body. In this configuration, because the sensor covers the entire second side of the body of the calibration device, the calibration device can be utilized to sense the contact between the sensor and various differently configured chamber components found in different types of processing chambers or stations disposed within a processing system during a calibration process performed in each of the different processing chambers or stations.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: January 21, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Narayanan Ramachandran, Karthik Narayanan Balakrishnan, Rajkumar Thanu, Jeffrey Hudgens
  • Publication number: 20170326733
    Abstract: Embodiments described herein generally relate to an apparatus and method of performing a robot calibration process within a substrate processing system. In one embodiment, a calibration device is used to calibrate a robot having an end effector. The calibration device includes a body, a first side and a second side opposite to the first side. The calibration device further includes a sensor disposed on the second side of the body. In some embodiments, the sensor covers the entire second side of the body. In this configuration, because the sensor covers the entire second side of the body of the calibration device, the calibration device can be utilized to sense the contact between the sensor and various differently configured chamber components found in different types of processing chambers or stations disposed within a processing system during a calibration process performed in each of the different processing chambers or stations.
    Type: Application
    Filed: May 10, 2017
    Publication date: November 16, 2017
    Inventors: Narayanan RAMACHANDRAN, Karthik Narayanan BALAKRISHNAN, Rajkumar THANU, Jeffrey HUDGENS