Patents by Inventor Fayaz Shaikh

Fayaz Shaikh 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: 20200105523
    Abstract: Methods for reducing warpage of bowed semiconductor substrates, particularly saddle-shaped bowed semiconductor substrates, are provided herein. Methods involve depositing a bow compensation layer by plasma enhanced chemical vapor deposition on the backside of the bowed semiconductor substrate by region, such as by quadrants, to form a compressive film on a tensile substrate and a tensile film on a compressive substrate. Methods involve flowing different gases from different nozzles on a surface of a showerhead to deliver various gases by region in a one-step operation or flowing gases in a multi-step process by shielding regions of the showerhead during delivery of gases to deliver specific gases from non-shielded regions onto regions of the bowed semiconductor substrate by alternating between rotating the semiconductor substrate and flowing gases to the backside of the bowed semiconductor substrate.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 2, 2020
    Inventors: Chanyuan Liu, Fayaz A. Shaikh, Niraj Rana, Nick Ray Linebarger, JR.
  • Patent number: 10388485
    Abstract: Methods and systems for depositing material layers with gap variation between film deposition operations. One method includes depositing a material layer over a substrate. The depositing is performed in a plasma chamber having a bottom electrode and a top electrode. The method includes providing a substrate over the bottom electrode in the plasma chamber. The method sets a first gap between the bottom and top electrodes and performs plasma deposition to deposit a first film of the material layer over the substrate while the first gap is set between the bottom and top electrodes. The method then sets a second gap between the bottom a top electrodes and performs plasma deposition to deposit a second film of the material layer over the substrate while the second gap is set between the bottom and top electrodes.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: August 20, 2019
    Assignee: Lam Research Corporation
    Inventor: Fayaz Shaikh
  • Publication number: 20190062918
    Abstract: A plasma processing system is provided. The system includes a chamber, a controller and a showerhead disposed in the chamber. A first gas manifold is connected to the showerhead for providing a first gas from a first gas source responsive to control from the controller. A shower-pedestal is disposed in the chamber and oriented opposite the showerhead. A second gas manifold is connected to the shower-pedestal for providing a second gas from a second gas source responsive to control from the controller. A substrate support for holding a substrate at a spaced apart relationship from the shower-pedestal is provided. A radio frequency (RF) power supply for providing power to the showerhead to generate a plasma is provided. The plasma is used for depositing a film on a back-side of the substrate, when present in the chamber. The substrate is held by the substrate support in the spaced apart relationship from the shower-pedestal, during backside deposition.
    Type: Application
    Filed: August 31, 2017
    Publication date: February 28, 2019
    Inventors: Fayaz Shaikh, Nick Linebarger, Curtis Bailey
  • Patent number: 10096475
    Abstract: A method for depositing a hardmask layer on a substrate includes nitridating a first layer of the substrate. The first layer is selected from a group consisting of silicon dioxide and silicon nitride. An amorphous carbon layer is deposited on the nitridated first layer via plasma-enhanced chemical vapor deposition (PECVD). A monolayer is deposited on the amorphous carbon layer using gas mixture including a metal precursor gas with a reducing agent and without plasma. A bulk metal-doped carbon hardmask layer is deposited on the monolayer.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: October 9, 2018
    Assignee: LAM RESEARCH CORPORATION
    Inventor: Fayaz Shaikh
  • Publication number: 20180144903
    Abstract: Methods and systems for depositing material layers with gap variation between film deposition operations. One method includes depositing a material layer over a substrate. The depositing is performed in a plasma chamber having a bottom electrode and a top electrode. The method includes providing a substrate over the bottom electrode in the plasma chamber. The method sets a first gap between the bottom and top electrodes and performs plasma deposition to deposit a first film of the material layer over the substrate while the first gap is set between the bottom and top electrodes. The method then sets a second gap between the bottom a top electrodes and performs plasma deposition to deposit a second film of the material layer over the substrate while the second gap is set between the bottom and top electrodes. The material layer is defined by the first and second films and the first gap is varied to the second gap to offset expected non-uniformities when depositing the first film followed by the second film.
    Type: Application
    Filed: January 2, 2018
    Publication date: May 24, 2018
    Inventor: Fayaz Shaikh
  • Patent number: 9928994
    Abstract: A method for depositing an amorphous carbon hardmask film includes arranging a substrate in a processing chamber, supplying a carrier gas to the processing chamber, supplying a hydrocarbon precursor to the processing chamber, supplying fluorine precursor from a group consisting of WFa, NFb, SFc, and F2 to the processing chamber, one of supplying plasma to the processing chamber or creating plasma in the processing chamber, and depositing an amorphous carbon hardmask film on the substrate. Fluorine from the fluorine precursor combines with hydrogen from the hydrocarbon precursor in gas phase reactions.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: March 27, 2018
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Fayaz Shaikh, Sirish Reddy
  • Patent number: 9875890
    Abstract: A system and method for depositing a metal dielectric film includes arranging a substrate in a plasma enhanced chemical vapor deposition (PECVD) processing chamber; supplying a carrier gas to the PECVD processing chamber; supplying a dielectric precursor gas to the PECVD processing chamber; supplying a metal precursor gas to the PECVD processing chamber; creating plasma in the PECVD processing chamber; and depositing a metal dielectric film on the substrate at a process temperature that is less than 500° C.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: January 23, 2018
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Fayaz Shaikh, Sirish Reddy
  • Patent number: 9859088
    Abstract: A method for depositing material layers with gap variation between film deposition operations is provided. A material layer is deposited over a substrate and is performed in a plasma chamber having a bottom electrode and a top electrode. The method sets a first gap between the bottom and top electrodes and performs plasma deposition to deposit a first film of the material layer over the substrate while the first gap is set between the bottom and top electrodes. Setting a second gap between the bottom a top electrodes and performs plasma deposition to deposit a second film of the material layer over the substrate while the second gap is set between the bottom and top electrodes. The material layer is from the first and second films and the first gap is varied to the second gap to offset pre-characterized non-uniformities when depositing the first film followed by the second film.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: January 2, 2018
    Assignee: Lam Research Corporation
    Inventor: Fayaz Shaikh
  • Publication number: 20170002465
    Abstract: A chamber for use in implementing a deposition process includes a pedestal for supporting a semiconductor wafer. A silicon ring is disposed over the pedestal and surrounds the semiconductor wafer. The silicon ring has a ring thickness that approximates a semiconductor wafer thickness. The silicon ring has an annular width that extends a process zone defined over the semiconductor wafer to an extended process zone that is defined over the semiconductor wafer and the silicon ring. A confinement ring defined from a dielectric material is disposed over the pedestal and surrounds the silicon ring. A showerhead having a central showerhead area and an extended showerhead area is also included. The central showerhead area is substantially disposed over the semiconductor wafer and the silicon ring. The extended showerhead area is substantially disposed over the confinement ring.
    Type: Application
    Filed: June 30, 2015
    Publication date: January 5, 2017
    Inventors: Fayaz Shaikh, Taide Tan
  • Patent number: 9520295
    Abstract: Systems and methods for depositing a metal-doped amorphous carbon hardmask film or a metal-doped amorphous silicon hardmask film includes arranging a substrate in a processing chamber; supplying a carrier gas to the processing chamber; supplying a hydrocarbon precursor gas or a silicon precursor gas to the processing chamber, respectively; supplying a metal-based precursor gas to the processing chamber; one of creating or supplying plasma in the processing chamber; and depositing a metal-doped amorphous carbon hardmask film or a metal-doped amorphous silicon hardmask film on the substrate, respectively.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: December 13, 2016
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Fayaz Shaikh, Sirish Reddy, Alice Hollister
  • Publication number: 20160322215
    Abstract: Methods and systems for depositing material layers with gap variation between film deposition operations. One method includes depositing a material layer over a substrate. The depositing is performed in a plasma chamber having a bottom electrode and a top electrode. The method includes providing a substrate over the bottom electrode in the plasma chamber. The method sets a first gap between the bottom and top electrodes and performs plasma deposition to deposit a first film of the material layer over the substrate while the first gap is set between the bottom and top electrodes. The method then sets a second gap between the bottom a top electrodes and performs plasma deposition to deposit a second film of the material layer over the substrate while the second gap is set between the bottom and top electrodes. The material layer is defined by the first and second films and the first gap is varied to the second gap to offset expected non-uniformities when depositing the first film followed by the second film.
    Type: Application
    Filed: April 30, 2015
    Publication date: November 3, 2016
    Inventor: Fayaz Shaikh
  • Publication number: 20160289827
    Abstract: A plasma chamber includes a pedestal, an upper electrode, and an annular structure. The pedestal has a central region to support a wafer and a step region that circumscribes the central region. A sloped region circumscribes the step region, with the sloped region having a top surface that slopes downward from the step region such that a vertical distance between the inner boundary of the top surface and the central region is less than a vertical distance between the outer boundary of the top surface and the central region. The upper electrode is coupled to a radio frequency power supply. An inner perimeter of the annular structure is defined to circumscribe the central region of the pedestal when the annular structure is disposed over the pedestal, and a portion of the annular structure has a thickness that increases with a radius of the annular structure.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Inventors: Edward Augustyniak, Yukinori Sakiyama, I, Taide Tan, Fayaz Shaikh
  • Publication number: 20160284541
    Abstract: A system and method for depositing a metal dielectric film includes arranging a substrate in a plasma enhanced chemical vapor deposition (PECVD) processing chamber; supplying a carrier gas to the PECVD processing chamber; supplying a dielectric precursor gas to the PECVD processing chamber; supplying a metal precursor gas to the PECVD processing chamber; creating plasma in the PECVD processing chamber; and depositing a metal dielectric film on the substrate at a process temperature that is less than 500° C.
    Type: Application
    Filed: March 24, 2015
    Publication date: September 29, 2016
    Inventors: Fayaz Shaikh, Sirish Reddy
  • Publication number: 20160225588
    Abstract: Systems and methods for depositing an amorphous carbon hardmask film include arranging a substrate in a processing chamber; supplying a carrier gas to the processing chamber; supplying a hydrocarbon precursor to the processing chamber; supplying fluorine precursor from a group consisting of WFa, NFb, SFc, and F2 to the processing chamber, wherein a, b and c are integers greater than zero; one of supplying plasma to the processing chamber or creating plasma in the processing chamber, wherein fluorine from the fluorine precursor combines with hydrogen from the hydrocarbon precursor in gas phase reactions; and depositing an amorphous carbon hardmask film on the substrate.
    Type: Application
    Filed: February 3, 2015
    Publication date: August 4, 2016
    Inventors: Fayaz Shaikh, Sirish Reddy
  • Publication number: 20160225632
    Abstract: Systems and methods for depositing a metal-doped amorphous carbon hardmask film or a metal-doped amorphous silicon hardmask film includes arranging a substrate in a processing chamber; supplying a carrier gas to the processing chamber; supplying a hydrocarbon precursor gas or a silicon precursor gas to the processing chamber, respectively; supplying a metal-based precursor gas to the processing chamber; one of creating or supplying plasma in the processing chamber; and depositing a metal-doped amorphous carbon hardmask film or a metal-doped amorphous silicon hardmask film on the substrate, respectively.
    Type: Application
    Filed: February 3, 2015
    Publication date: August 4, 2016
    Inventors: Fayaz Shaikh, Sirish Reddy, Alice Hollister