Patents by Inventor Hari Hegde

Hari Hegde 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: 20170140953
    Abstract: An ion system for use in an etching system for etching at least a wafer using a gas. The ion system may include an ion chamber for containing charged particles generated from the gas. The ion system may also include a magnetic device surrounding at least a portion of the ion chamber. The magnetic device may affect the distribution of the charged particles in the ion chamber. The ion system may also include a grid assembly disposed between the ion chamber and the wafer when the wafer is etched. The charged particles may be provided through the grid assembly to etch the wafer when the wafer is etched.
    Type: Application
    Filed: October 2, 2008
    Publication date: May 18, 2017
    Applicant: Plasma-Therm NES LLC
    Inventor: Hari Hegde
  • Patent number: 8703001
    Abstract: A grid assembly for use in an etching system for etching at least a wafer. The grid assembly may include a first grid member, a second grid member, and a third grid member. When the grid assembly is used in etching the wafer, the first grid member may be electrically grounded, the second grid member may be electrically negative relative to the first grid member, and the third grid member may be electrically positive relative to the first grid member. The second grid member may be disposed between the first grid member and the third grid member. The first grid member may be thicker than at least one of the second grid member and the third grid member.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: April 22, 2014
    Assignee: Sarpangala Hari Harakeshava Hegde
    Inventor: Hari Hegde
  • Publication number: 20100096254
    Abstract: A system for depositing material on a substrate using plasma and a target. The target may include the material and/or a second material. The system may include a plasma source for providing the plasma. The system may also include a chamber for containing the substrate, the plasma, and the target during deposition of the material on the substrate. The system may also include a first magnet disposed above the chamber or disposed below the chamber for influencing distribution of the plasma inside the chamber. At least one of a bottom surface of the magnet and a top surface of the magnet is at an angle with respect to an imaginary axis of the plasma source. A circular cross section of the plasma source is symmetrical with respect to the imaginary axis of the plasma source. The angle is greater than 0 degree and less than 90 degrees.
    Type: Application
    Filed: September 30, 2009
    Publication date: April 22, 2010
    Inventor: Hari Hegde
  • Patent number: 7183716
    Abstract: A charged particle source utilizes a novel plasma processing chamber, RF coil and ion optics, to achieve high uniformity. The plasma processing chamber has a re-entrant vessel which is movable, and which includes extensions of adjustable shape or position, to make more uniform the plasma contained within the chamber. One or more magnets, which may be static or moving, may be included within the re-entrant vessel. The ion optics include a grid with a number of apertures, and tuning features each surrounding an aperture. These tuning features either reduce the diameter of the associated aperture, or increase the length of that aperture, to create more uniform beamlets emerging from the grid. The RF coil includes a flux concentrator positioned adjacent to the winding in at least one angular region thereof to tune the magnetic field produced thereby.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: February 27, 2007
    Assignee: Veeco Instruments, Inc.
    Inventors: Viktor Kanarov, Alan V. Hayes, Rustam Yevtukhov, Ira Reiss, Roger P. Fremgen, Jr., Adrian Celaru, Kurt E. Williams, Carlos Fernando de Mello Borges, Boris L. Druz, Renga Rajan, Hari Hegde
  • Publication number: 20040163766
    Abstract: A charged particle source utilizes a novel plasma processing chamber, RF coil and ion optics, to achieve high uniformity. The plasma processing chamber has a re-entrant vessel which is movable, and which includes extensions of adjustable shape or position, to make more uniform the plasma contained within the chamber. One or more magnets, which may be static or moving, may be included within the re-entrant vessel. The ion optics include a grid with a number of apertures, and tuning features each surrounding an aperture. These tuning features either reduce the diameter of the associated aperture, or increase the length of that aperture, to create more uniform beamlets emerging from the grid. The RF coil includes a flux concentrator positioned adjacent to the winding in at least one angular region thereof to tune the magnetic field produced thereby.
    Type: Application
    Filed: February 4, 2004
    Publication date: August 26, 2004
    Applicant: Veeco Instruments Inc.
    Inventors: Viktor Kanarov, Alan V. Hayes, Rustam Yevtukhov, Ira Reiss, Roger P. Fremgen, Adrian Celaru, Kurt E. Williams, Carlos Fernando de Mello Borges, Boris L. Druz, Renga Rajan, Hari Hegde
  • Patent number: 6447839
    Abstract: This invention is directed to methods for depositing multilayered thin films onto substrates, for example in making thin film magnetic heads. In accordance with the invention a first film, such as Cr, is deposited onto the substrate at a first pressure and a second layer, such as CoCrPt is deposited at a second pressure.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: September 10, 2002
    Assignee: Veeco Instruments, Inc.
    Inventors: Hari Hegde, Adrian Devasahayam, Jinsong Wang
  • Patent number: 6139906
    Abstract: This invention is directed to methods for depositing multilayered thin films onto substrates, for example in making thin film magnetic heads. In accordance with the invention a first film, such as Cr, is deposited onto the substrate at a first angle and a second layer, such as CoCrPt is deposited at a second angle.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: October 31, 2000
    Assignee: Veeco Instruments, Inc.
    Inventors: Hari Hegde, Adrian Devasahayam, Jinsong Wang