Patents by Inventor Laisheng Sun

Laisheng Sun 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: 20220380705
    Abstract: A method and cleaning composition for microelectronic devices or semiconductor substrates including at least one N alkanolamine; at least one hydroxylamine or derivatives of hydroxylamine or mixtures thereof; at least one polyfunctional organic acid with at least two carboxylic acid groups and water. The cleaning compositions can further include at least one corrosion inhibitor.
    Type: Application
    Filed: September 24, 2020
    Publication date: December 1, 2022
    Applicant: Versum Materials US, LLC
    Inventors: LAISHENG SUN, LILI WANG, AIPING WU, YI-CHIA LEE, TIANNIU CHEN
  • Publication number: 20220333044
    Abstract: Cleaning compositions and the method of using the same are disclosed, where the compositions include one or more alkanolamines, one or more ether alcohol solvents or aromatic containing alcohol, one or more corrosion inhibitors, and optionally one or more secondary solvents.
    Type: Application
    Filed: September 28, 2020
    Publication date: October 20, 2022
    Applicant: Versum Materials US, LLC
    Inventors: YUANMEI CAO, MICHAEL PHENIS, LILI WANG, LAISHENG SUN, AIPING WU
  • Publication number: 20220298417
    Abstract: Described herein is an etching solution suitable for the selective removal of silicon over p-doped silicon and/or silicon-germanium from a microelectronic device, having water; at least one of NH4OH or a quaternary ammonium hydroxide; at least one compound selected from benzoquinone or a derivative of benzoquinone; quinoline or a derivative of quinoline; an unsubstituted or substituted C6-20 aliphatic acid; a C4-12 alkylamine; and a polyalkylenimine; optionally at least one water-miscible organic solvent; and optionally, at least one compound selected from an alkanolamine and a polyamine.
    Type: Application
    Filed: June 12, 2020
    Publication date: September 22, 2022
    Applicant: Versum Materials US, LLC
    Inventors: Wen Dar Liu, YI-CHIA LEE, CHUNG-YI CHANG, AIPING WU, LAISHENG SUN
  • Publication number: 20220298182
    Abstract: The disclosed and claimed subject matter is directed to an etching composition that includes (A) phosphoric acid and (B) a mixture that includes (i) a silicon-containing compound and (ii) an aqueous solvent. In some embodiments, the etching compositions include additional ingredients. The etching compositions are useful for the selective removal of silicon nitride over silicon oxide from a microelectronic device having such material(s) thereon during its manufacture.
    Type: Application
    Filed: September 28, 2020
    Publication date: September 22, 2022
    Applicant: Versum Materials US, LLC
    Inventors: Jhih Kuei Ge, YI-CHIA LEE, WEN DAR LIU, AIPING WU, LAISHENG SUN
  • Publication number: 20220251480
    Abstract: This disclosed and claimed subject matter relates to a post etch residue cleaning compositions that include an alkanolamine having two or more or more than two alkanol groups, an alpha-hydroxy acid and water as well as methods for use thereof in microelectronics manufacturing.
    Type: Application
    Filed: July 14, 2020
    Publication date: August 11, 2022
    Applicant: Versum Materials US, LLC
    Inventors: Laisheng Sun, LILI WANG, ALPING WU, YI-CHIA LEE, TIANNIU R. CHEN
  • Publication number: 20220243150
    Abstract: Compositions and methods useful for removing residue and photoresist from a semiconductor substrate comprising: from about 5 to about 60% by wt. of water; from about 10 to about 90% by wt. of a water-miscible organic solvent; from about 5 to about 90% by wt. of at least one alkanolamine; from about 0.05 to about 20% by wt. of at least one polyfunctional organic acid; and from about 0.1 to about 10% by wt. of at least one phenol-type corrosion inhibitor, wherein the composition is substantially free of hydroxylamine.
    Type: Application
    Filed: June 15, 2020
    Publication date: August 4, 2022
    Applicant: Versum Materials US, LLC
    Inventors: LILI WANG, AIPING WU, LAISHENG SUN, YI-CHIA LEE, YUANMEI CAO
  • Publication number: 20220228062
    Abstract: The disclosed and claimed subject matter is directed to an etching composition that includes (A) phosphoric acid and (B) a mixture that includes (i) a silicon-containing compound and (ii) an aqueous solvent. In some embodiments, the etching compositions include additional ingredients. The etching compositions are useful for the selective removal of silicon nitride over silicon oxide from a microelectronic device having such material(s) thereon during its manufacture.
    Type: Application
    Filed: March 28, 2022
    Publication date: July 21, 2022
    Inventors: Jhih Kuei Ge, YI-CHIA LEE, WEN DAR LIU, AIPING WU, LAISHENG SUN
  • Patent number: 11091727
    Abstract: A microelectronic device (semiconductor substrate) cleaning composition is provided that comprises water; oxalic acid, and two or more corrosion inhibitors and methods of using the same.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: August 17, 2021
    Assignee: Versum Materials US, LLC
    Inventors: Laisheng Sun, Yi-Chia Lee, Lili Wang, Aiping Wu
  • Patent number: 11035044
    Abstract: Described herein is an etching solution suitable for both tungsten-containing metals and GST metals, which comprises: water; at least one phenolic derivative compound having at least two hydroxyl groups; at least one strong base selected from the group consisting of (i) a quaternary base; (ii) an organic amine; and (iii) a metal hydroxide; optionally an ammonium salt of an organic acid; and optionally a water-miscible solvent, wherein the pH of the etching solution is 10 or greater, and wherein the etching solution is substantially free of a peroxide oxidizer and a metal ion-containing oxidizer.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: June 15, 2021
    Assignee: Versum Materials US, LLC
    Inventors: Wen Dar Liu, Laisheng Sun, Yi-Chia Lee, Tianniu Chen, Gang Chris Han-Adebekun
  • Patent number: 10557107
    Abstract: A cleaning composition and process for cleaning post-chemical mechanical polishing (CMP) residue and contaminants from a microelectronic device having said residue and contaminants thereon. The cleaning compositions are substantially devoid of alkali hydroxides, alkaline earth metal hydroxides, and tetramethylammonium hydroxide. The composition achieves highly efficacious cleaning of the post-CMP residue and contaminant material from the surface of the microelectronic device without compromising the low-k dielectric material or the copper interconnect material.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: February 11, 2020
    Assignee: ENTEGRIS, INC.
    Inventors: Laisheng Sun, Peng Zhang, Jun Liu, Steven Medd, Jeffrey A. Barnes, Shrane Ning Jenq
  • Publication number: 20200032177
    Abstract: A microelectronic device (semiconductor substrate) cleaning composition is provided that comprises water; oxalic acid, and two or more corrosion inhibitors and methods of using the same.
    Type: Application
    Filed: June 28, 2019
    Publication date: January 30, 2020
    Inventors: Laisheng Sun, Yi-Chia Lee, Lili Wang, Aiping Wu
  • Patent number: 10176979
    Abstract: An amine-free composition and process for cleaning post-chemical mechanical polishing (CMP) residue and contaminants from a microelectronic device having said residue and contaminants thereon. The amine-free composition preferably includes at least one oxidizing agent, at least one complexing agent, at least one basic compound, and water and has a pH in the range from about 2.5 to about 11.5. The composition achieves highly efficacious cleaning of the post-CMP residue and contaminant material from the surface of the microelectronic device without compromising the low-k dielectric material or the copper interconnect material.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: January 8, 2019
    Assignee: Entegris, Inc.
    Inventors: Jun Liu, Jeffrey A. Barnes, Emanuel I. Cooper, Laisheng Sun, Elizabeth Thomas, Jason Chang
  • Publication number: 20180251712
    Abstract: A cleaning composition and process for cleaning post-chemical mechanical polishing (CMP) residue and contaminants from a microelectronic device having said residue and contaminants thereon. The cleaning compositions are substantially devoid of alkali hydroxides, alkaline earth metal hydroxides, and tetramethylammonium hydroxide. The composition achieves highly efficacious cleaning of the post-CMP residue and contaminant material from the surface of the microelectronic device without compromising the low-k dielectric material or the copper interconnect material.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 6, 2018
    Inventors: Laisheng Sun, Peng Zhang, Jun Liu, Steven Medd, Jeffrey A. Bames, Shrane Ning Jenq
  • Publication number: 20180209049
    Abstract: Described herein is an etching solution suitable for both tungsten-containing metals and GST metals, which comprises: water; at least one phenolic derivative compound having at least two hydroxyl groups; at least one strong base selected from the group consisting of (i) a quaternary base; (ii) an organic amine; and (iii) a metal hydroxide; optionally an ammonium salt of an organic acid; and optionally a water-miscible solvent, wherein the pH of the etching solution is 10 or greater, and wherein the etching solution is substantially free of a peroxide oxidizer and a metal ion-containing oxidizer.
    Type: Application
    Filed: January 16, 2018
    Publication date: July 26, 2018
    Applicant: Versum Materials US, LLC
    Inventors: Wen Dar Liu, Laisheng Sun, Yi-Chia Lee, Tianniu Chen, Gang Chris Han-Adebekun
  • Publication number: 20160340620
    Abstract: A cleaning composition and process for cleaning post-chemical mechanical polishing (CMP) residue and contaminants from a microelectronic device having said residue and contaminants thereon. The cleaning compositions are substantially devoid of alkali hydroxides, alkaline earth metal hydroxides, and tetramethylammonium hydroxide. The composition achieves highly efficacious cleaning of the post-CMP residue and contaminant material from the surface of the microelectronic device without compromising the low-k dielectric material or the copper interconnect material.
    Type: Application
    Filed: January 29, 2015
    Publication date: November 24, 2016
    Inventors: Laisheng SUN, Peng ZHANG, Jun LIU, Steven MEDD, Jeffrey A. BARNES, Shrane Ning JENQ
  • Publication number: 20160122696
    Abstract: A removal composition and process for cleaning post-chemical mechanical polishing (CMP) contaminants and ceria particles from a microelectronic device having said particles and contaminants thereon. The removal compositions include at least one surfactant. The composition achieves highly efficacious removal of the ceria particles and CMP contaminant material from the surface of the microelectronic device without compromising the low-k dielectric, silicon nitride, or tungsten-containing materials.
    Type: Application
    Filed: May 14, 2014
    Publication date: May 5, 2016
    Inventors: Jun LIU, Laisheng SUN
  • Publication number: 20160075971
    Abstract: A cleaning composition and process for cleaning post-chemical mechanical polishing (CMP) residue and contaminants from a microelectronic device having said residue and contaminants thereon. The cleaning compositions include corrosion inhibitor(s) and surfactant(s). The composition achieves highly efficacious cleaning of the post-CMP residue and contaminant material from the surface of the microelectronic device without compromising the low-k dielectric material or the copper interconnect material.
    Type: Application
    Filed: April 22, 2014
    Publication date: March 17, 2016
    Applicant: ADVANCED TECHNOLOGY MATERIALS, INC.
    Inventors: Jun LIU, Laisheng SUN, Steven MEDD, Jeffrey A. BARNES, Peter WRSCHKA, Elizabeth THOMAS
  • Publication number: 20160020087
    Abstract: An amine-free composition and process for cleaning post-chemical mechanical polishing (CMP) residue and contaminants from a microelectronic device having said residue and contaminants thereon. The amine-free composition preferably includes at least one oxidizing agent, at least one complexing agent, at least one basic compound, and water and has a pH in the range from about 2.5 to about 11.5. The composition achieves highly efficacious cleaning of the post-CMP residue and contaminant material from the surface of the microelectronic device without compromising the low-k dielectric material or the copper interconnect material.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 21, 2016
    Applicant: ENTEGRIS, INC.
    Inventors: Jun LIU, Jeffrey A. BARNES, Emanuel I. COOPER, Laisheng SUN, Elizabeth THOMAS, Jason CHANG
  • Publication number: 20150045277
    Abstract: A cleaning composition and process for cleaning post-chemical mechanical polishing (CMP) residue and contaminants from a microelectronic device having said residue and contaminants thereon. The cleaning compositions include at least one quaternary base, at least one amine, at least one azole corrosion inhibitor, at least one reducing agent, and at least one solvent. The composition achieves highly efficacious cleaning of the post-CMP residue and contaminant material from the surface of the microelectronic device while being compatible with barrier layers, wherein the barrier layers are substantially devoid of tantalum or titanium.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 12, 2015
    Applicant: Entegris, Inc.
    Inventors: Jun Liu, Trace Quentin Hurd, Laisheng Sun, Steven Medd, Shrane Ning Jenq