Patents by Inventor Ratchana LIMARY

Ratchana LIMARY 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: 20240030023
    Abstract: A method for protecting a surface of a substrate during processing includes a) providing a solution forming a co-polymer having a ceiling temperature; b) dispensing the solution onto a surface of the substrate to form a sacrificial protective layer, wherein the co-polymer is kinetically trapped to allow storage at a temperature above the ceiling temperature; c) exposing the substrate to ambient conditions for a predetermined period; and d) de-polymerizing the sacrificial protective layer by using stimuli selected from a group consisting of ultraviolet (UV) light and heat.
    Type: Application
    Filed: January 28, 2020
    Publication date: January 25, 2024
    Inventors: Stephen M. Sirard, Ratchana Limary, Yang Pan, Diane Hymes
  • Publication number: 20230295412
    Abstract: The present disclosure relates to a stimulus responsive polymer (SRP) that includes a homopolymer. Methods, films, and formulations employing an SRP are also described herein.
    Type: Application
    Filed: July 23, 2021
    Publication date: September 21, 2023
    Inventors: Stephen M. SIRARD, Gregory BLACHUT, Ratchana LIMARY, Diane HYMES, Yang PAN
  • Publication number: 20220328338
    Abstract: The present disclosure relates to methods of forming a film including small molecules. Such methods can optionally include removing such small molecules, such as by way of sublimation, evaporation, or conversion to a more volatile form.
    Type: Application
    Filed: September 1, 2020
    Publication date: October 13, 2022
    Inventors: Gregory BLACHUT, Diane HYMES, Stephen M. SIRARD, Ratchana LIMARY, Christopher M. Bates
  • Patent number: 10008396
    Abstract: A method for drying a substrate including a plurality of high aspect ratio (HAR) structures includes, after at least one of (i) wet etching, and (ii) wet cleaning, and (iii) wet rinsing the substrate using at least one of (a) wet etching solution, and (b) wet cleaning solution, and (c) wet rinsing solution, respectively, and without drying the substrate: depositing, between the plurality of HAR structures, a solution that includes a polymer component, a nanoparticle component, and a solvent; wherein as the solvent evaporates, a sacrificial bracing material precipitates out of solution and at least partially fills the plurality of HAR structures, the sacrificial bracing material including (i) polymer material from the polymer component of the solution and (ii) nanoparticle material from the nanoparticle component of the solution; and exposing the substrate to plasma generated using a plasma gas chemistry to volatilize the sacrificial bracing material.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: June 26, 2018
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Stephen Sirard, Ratchana Limary
  • Patent number: 9466511
    Abstract: Systems and methods for drying a substrate including a plurality of high aspect ratio (HAR) structures is performed after at least one of wet etching and/or wet cleaning the substrate using at least one of wet etching fluid and/or wet cleaning fluid, respectively, and without drying the substrate. Fluid between the plurality of HAR structures is displaced using a solvent including a bracing material. After the solvent evaporates, the bracing material precipitates out of solution and at least partially fills the plurality of HAR structures. The plurality of HAR structures are exposed to non-plasma based stimuli to remove the bracing material.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: October 11, 2016
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Ratchana Limary, Stephen Sirard
  • Publication number: 20160099160
    Abstract: A method for drying a substrate including a plurality of high aspect ratio (HAR) structures includes, after at least one of (i) wet etching, and (ii) wet cleaning, and (iii) wet rinsing the substrate using at least one of (a) wet etching solution, and (b) wet cleaning solution, and (c) wet rinsing solution, respectively, and without drying the substrate: depositing, between the plurality of HAR structures, a solution that includes a polymer component, a nanoparticle component, and a solvent; wherein as the solvent evaporates, a sacrificial bracing material precipitates out of solution and at least partially fills the plurality of HAR structures, the sacrificial bracing material including (i) polymer material from the polymer component of the solution and (ii) nanoparticle material from the nanoparticle component of the solution; and exposing the substrate to plasma generated using a plasma gas chemistry to volatize the sacrificial bracing material.
    Type: Application
    Filed: June 4, 2015
    Publication date: April 7, 2016
    Inventors: Stephen Sirard, Ratchana Limary
  • Publication number: 20160086829
    Abstract: Systems and methods for drying a substrate including a plurality of high aspect ratio (HAR) structures is performed after at least one of wet etching and/or wet cleaning the substrate using at least one of wet etching fluid and/or wet cleaning fluid, respectively, and without drying the substrate. Fluid between the plurality of HAR structures is displaced using a solvent including a bracing material. After the solvent evaporates, the bracing material precipitates out of solution and at least partially fills the plurality of HAR structures. The plurality of HAR structures are exposed to non-plasma based stimuli to remove the bracing material.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 24, 2016
    Inventors: Ratchana Limary, Stephen Sirard
  • Publication number: 20160042945
    Abstract: A method includes depositing a film solution onto a patterned feature of a semiconductor substrate after wet cleaning the semiconductor substrate and without performing a drying step after the wet cleaning. The film solution includes a dielectric film precursor or a dielectric film precursor and at least one of a reactant, a solvent, a surfactant and a carrier fluid. The method includes baking at least one of solvent and unreacted solution out of a film formed by the film solution by heating the substrate to a baking temperature. The method includes curing the substrate.
    Type: Application
    Filed: August 11, 2014
    Publication date: February 11, 2016
    Inventors: Ratchana Limary, Nerissa Draeger, Diane Hymes, Richard Gottscho
  • Patent number: 8898928
    Abstract: An apparatus for delamination drying a substrate is provided. A chamber for receiving a substrate is provided. A chuck supports and clamps the substrate within the chamber. A temperature controller controls the temperature of the substrate and is able to cool the substrate. A vacuum pump is in fluid connection with the chamber. A tilting mechanism is able to tilt the chuck at least 90 degrees.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: December 2, 2014
    Assignee: Lam Research Corporation
    Inventors: Stephen M. Sirard, Diane Hymes, Alan M. Schoepp, Ratchana Limary
  • Publication number: 20140101964
    Abstract: An apparatus for delamination drying a substrate is provided. A chamber for receiving a substrate is provided. A chuck supports and clamps the substrate within the chamber. A temperature controller controls the temperature of the substrate and is able to cool the substrate. A vacuum pump is in fluid connection with the chamber. A tilting mechanism is able to tilt the chuck at least 90 degrees.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 17, 2014
    Applicant: Lam Research Corporation
    Inventors: Stephen M. SIRARD, Diane HYMES, Alan M. SCHOEPP, Ratchana LIMARY