Patents by Inventor Murlidhar Bashyam

Murlidhar Bashyam 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).

  • Patent number: 11455452
    Abstract: The present disclosure provides a method for adjusting implant parameter conditions in semiconductor processing by wafer and by wafer zone using in-line measurements from previous operations and a feed-forward computer model. The feed-forward model is based on a sensitivity map of in-line measured data and its effect of electrical performance. Feed-forward computer models that adjust implant parameters by wafer and by zone improve both wafer-to-wafer and within wafer electrical uniformity in semiconductor devices.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: September 27, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Mahalingam Nandakumar, Murlidhar Bashyam, Alwin Tsao, Douglas Newman
  • Publication number: 20210089694
    Abstract: The present disclosure provides a method for adjusting implant parameter conditions in semiconductor processing by wafer and by wafer zone using in-line measurements from previous operations and a feed-forward computer model. The feed-forward model is based on a sensitivity map of in-line measured data and its effect of electrical performance. Feed-forward computer models that adjust implant parameters by wafer and by zone improve both wafer-to-wafer and within wafer electrical uniformity in semiconductor devices.
    Type: Application
    Filed: July 31, 2020
    Publication date: March 25, 2021
    Inventors: Mahalingam Nandakumar, Murlidhar Bashyam, Alwin Tsao, Douglas Newman
  • Publication number: 20170345780
    Abstract: A plasma-based ashing process for surface conditioning and material modification to improve bond pad metallurgical properties as well as semiconductor device performance. Residue materials generated in a removal process at a process layer having recessed features with Ni—Pd surfaces are ashed in a plasma reactor to reduce defect count and improve surface conditioning associated with bond pads of the semiconductor device.
    Type: Application
    Filed: May 24, 2016
    Publication date: November 30, 2017
    Inventors: Murlidhar Bashyam, Richard Allen Faust
  • Publication number: 20110053372
    Abstract: A method of removing photoresist from a surface during the manufacture of an integrated circuit. Organometallic polymers and monomers are formed during the etch of a hard mask material defining the locations of a metal-bearing film, such as tantalum nitride, when photoresist is used to mask the hard mask etch. These organometallic polymers and monomers as formed are not fully cross-linked. A liquid phase solution of sulfuric acid and hydrogen peroxide used to remove the photoresist also removes these not-fully-cross-linked organometallic polymers and monomers, thus preventing the formation of stubborn contaminants during subsequent high temperature processing.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 3, 2011
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Srinivas Raghavan, Kalyan Cherukuri, Murlidhar Bashyam, Richard A. Faust
  • Publication number: 20100167552
    Abstract: A method of manufacturing an IC device includes providing a workpiece having least one dielectric layer disposed on a surface of the workpiece. The method also includes processing the dielectric layer to form a plurality of apertures in the dielectric layer, where the processing includes at least one micromask-prone process. The method further includes subsequent to the processing step, cryogenically treating the workpiece. In the method, the treating step removes particles deposited on or in the plurality of apertures during the processing step and maintains the plurality of apertures, where the particles are generated from micromask features resulting from the micromask-prone process.
    Type: Application
    Filed: December 30, 2008
    Publication date: July 1, 2010
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Murlidhar Bashyam, Rajneesh Jaiswal, Jason R. Heine
  • Patent number: 7700481
    Abstract: A method for manufacturing a semiconductor device. The method comprises forming a metal layer on a silicon-containing layer located on a semiconductor substrate. The method also comprises reacting a portion of the metal layer with the silicon-containing layer to form a metal silicide layer. The method further comprises removing an unreacted portion of the metal layer on the metal silicide layer by a removal process. The removal process includes delivering a flow of an acidic solution to a surface of the unreacted portion of the metal layer, wherein the acidic solution delivered to the surface is substantially gas-free.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: April 20, 2010
    Assignee: Texas Instruments Incorporated
    Inventors: Yaw S. Obeng, Murlidhar Bashyam, Srinivasa Raghavan
  • Publication number: 20090152600
    Abstract: A method of manufacturing an IC that comprises fabricating a semiconductor device. Fabricating the device includes depositing a photoresist layer on a substrate surface and implanting one or more dopant species through openings in the photoresist layer into the substrate, and, into the photoresist layer, thereby forming an implanted photoresist layer. Fabricating the device also includes removing the implanted photoresist layer. Removing the implanted photoresist layer includes exposing the implanted photoresist layer to a mixture that includes sulfuric acid, hydrogen peroxide and ozone. The mixture is at a temperature of at least about 130°.
    Type: Application
    Filed: October 14, 2008
    Publication date: June 18, 2009
    Applicant: Texas Instruments Incorporated
    Inventors: Srinivasa Raghavan, Murlidhar Bashyam, Mike Tucker, Kalyan Cherukuri
  • Publication number: 20080315322
    Abstract: A method for manufacturing a semiconductor device. The method comprises forming a metal layer on a silicon-containing layer located on a semiconductor substrate. The method also comprises reacting a portion of the metal layer with the silicon-containing layer to form a metal silicide layer. The method further comprises removing an unreacted portion of the metal layer on the metal silicide layer by a removal process. The removal process includes delivering a flow of an acidic solution to a surface of the unreacted portion of the metal layer, wherein the acidic solution delivered to the surface is substantially gas-free.
    Type: Application
    Filed: June 25, 2007
    Publication date: December 25, 2008
    Applicant: Texas Instruments Incorporated
    Inventors: Yaw S. Obeng, Murlidhar Bashyam, Srinivasa Raghavan