Patents by Inventor Aiping Wu

Aiping Wu 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: 12281251
    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: Grant
    Filed: September 28, 2020
    Date of Patent: April 22, 2025
    Assignee: Versum Materials US, LLC
    Inventors: Jhih Kuei Ge, Yi-Chia Lee, Wen Dar Liu, Aiping Wu, Laisheng Sun
  • Publication number: 20240392194
    Abstract: The disclosed and claimed subject matter relates to a stripping composition having a controlled oxide etch and ITO (Indium Tin oxide) etch as well as sidewall polymer and polymer etch residue removal capability and to a process for stripping and etching utilizing the composition.
    Type: Application
    Filed: September 20, 2022
    Publication date: November 28, 2024
    Inventors: Chung-Yi Chang, Wen Dar Liu, Jhih-Kuei Ge, Yi-Chia Lee, Aiping Wu
  • Patent number: 12110435
    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: Grant
    Filed: March 28, 2022
    Date of Patent: October 8, 2024
    Assignee: Versum Materials US, LLC
    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
  • 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: 10400167
    Abstract: A composition and method using same useful for etching a semiconductor substrate comprising: from about 25 to 86% by weight of water; from about 0 to about 60% by weight of a water-miscible organic solvent; from about 1 to about 30% by weight of a base comprising a quartenary ammonium compound; from about 1 to about 50% by weight of an amine compound wherein the amine compound is selected from the group consisting of a secondary amine, a tertiary amine, and mixtures thereof; from about 0 to about 5% by weight of a buffering agent; from about 0 to about 15% by weight of a corrosion inhibitor.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: September 3, 2019
    Assignee: VERSUM MATERIALS US, LLC
    Inventors: Wen Dar Liu, Yi-Chia Lee, Tianniu Chen, Thomas Mebrahtu, Aiping Wu, Edward Chia Kai Tseng, Gene Everad Parris
  • Patent number: 10073351
    Abstract: A photoresist or semiconductor manufacturing residue stripping and cleaning composition comprising water, one or more alkaline compounds, one or more corrosion inhibitors, and one or more oxidized products of one or more antioxidants, the method of making the composition and the method of using the composition.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: September 11, 2018
    Assignee: VERSUM MATERIALS US, LLC
    Inventors: Rajiv Krishan Agarwal, Mark Richard Brown, Aiping Wu, David Barry Rennie, Yi-Chia Lee, Gene Everad Parris
  • Publication number: 20170145311
    Abstract: A composition and method using same useful for etching a semiconductor substrate comprising: from about 25 to 86% by weight of water; from about 0 to about 60% by weight of a water-miscible organic solvent; from about 1 to about 30% by weight of a base comprising a quartenary ammonium compound; from about 1 to about 50% by weight of an amine compound wherein the amine compound is selected from the group consisting of a secondary amine, a tertiary amine, and mixtures thereof; from about 0 to about 5% by weight of a buffering agent; from about 0 to about 15% by weight of a corrosion inhibitor.
    Type: Application
    Filed: November 21, 2016
    Publication date: May 25, 2017
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Wen Dar Liu, Yi-Chia Lee, Tianniu Chen, Thomas Mebrahtu, Aiping Wu, Edward Chia Kai Tseng, Gene Everad Parris
  • Patent number: 9536730
    Abstract: A composition and method for removing copper-containing post-etch and/or post-ash residue from patterned microelectronic devices is described. The removal composition includes water, a water-miscible organic solvent, an amine compound, an organic acid, and a fluoride ion source. The compositions effectively remove the copper-containing post-etch residue from the microelectronic device without damaging exposed low-k dielectric and metal interconnect materials.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: January 3, 2017
    Assignee: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Yi Chia Lee, Madhukar Bhaskara Rao, Gautam Banerjee, Wen Dar Liu, Aiping Wu, Seiji Inaoka
  • Publication number: 20160179011
    Abstract: A photoresist or semiconductor manufacturing residue stripping and cleaning composition comprising water, one or more alkaline compounds, one or more corrosion inhibitors, and one or more oxidized products of one or more antioxidants, the method of making the composition and the method of using the composition.
    Type: Application
    Filed: December 9, 2015
    Publication date: June 23, 2016
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Rajiv Krishan Agarwal, Mark Richard Brown, Aiping Wu, David Barry Rennie, Yi-Chia Lee, Gene Everad Parris
  • Publication number: 20160152930
    Abstract: Stripping and cleaning compositions suitable for the removal of film resists include about 2-55% by weight of at least one alkanolamine or at least one morpholine or mixtures thereof; about 20-94% by weight of at least one organic solvent; and about 0.5-60% by weight water based on the total weight of the composition.
    Type: Application
    Filed: February 8, 2016
    Publication date: June 2, 2016
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Matthew I. Egbe, Aiping Wu, Madhukar Bhaskara Rao
  • Patent number: 9201308
    Abstract: The present invention relates to water-rich formulations and the method using same, to remove bulk photoresists, post-etched and post-ashed residues, residues from Al back-end-of-the-line interconnect structures, as well as contaminations. The formulation comprises: hydroxylamine; corrosion inhibitor containing a mixture of alkyl dihydroxybenzene and hydroxyquinoline; an alkanolamine, a water-soluble solvent or the combination of the two; and at least 50% by weight of water.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: December 1, 2015
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Madhukar Bhaskara Rao, Gautam Banerjee, Thomas Michael Wieder, Yi-Chia Lee, Wen Dar Liu, Aiping Wu
  • Patent number: 9042142
    Abstract: The invention discloses a voltage source converter and a voltage source converter system. The voltage source converter comprises: a multi-level voltage source converter, being adapted to output a multiple levels of a first voltage at one of two first output terminals through a multiple of first conducting paths; a first energy store; and a first switching element, being arranged to directly connected with the first output terminal, and being adapted to switch the first energy store in or out of the first conducting path so as to combine a level of the voltage of the first energy store with the level of the first voltage as a second voltage output at a second output terminal. By having the topology as above, the voltage class of each of the power semiconductors can be kept lower with the number of the power semiconductors unchanged. Besides, VDRM is lowed as compared to conventional topology. This renders the reduction of the cost and the increase of the liability.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: May 26, 2015
    Assignee: ABB Technology Ltd.
    Inventors: Eryong Guan, Niko Railo, Aiping Wu
  • Patent number: 8889609
    Abstract: A water-rich hydroxylamine formulation for photoresist and post-etch/post-ash residue removal in applications wherein a semiconductor substrate comprises aluminum. The cleaning composition comprises from about 2 to about 15% by wt. of hydroxylamine; from about 50 to about 80% by wt. of water; from about 0.01 to about 5.0% by wt. of a corrosion inhibitor; from about 5 to about 45% by wt. of a component selected from the group consisting of: an alkanolamine having a pKa<9.0, a water-miscible solvent, and a mixture thereof. Employment of such composition exhibits efficient cleaning capability for Al substrates, minimal silicon etch while protecting aluminum for substrates comprising both materials.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: November 18, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Aiping Wu, Yi-Chia Lee, Wen Dar Liu, Machukar Bhaskara Rao, Gautam Banerjee
  • Patent number: 8772214
    Abstract: A composition and method for removing residues such as, without limitation, post etched and/or post ashed photoresist, plasma etching, ashing, and mixtures thereof from a substrate is described herein. In one aspect, there is provided a method for removing residues from a substrate comprising: contacting the substrate with a composition comprising: water; a quaternary ammonium hydroxide compound; a fluoride containing compound; and optionally a corrosion inhibitor wherein the composition is free of an added organic solvent and wherein the composition has a pH greater than 9.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: July 8, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Aiping Wu, Roberto John Rovito
  • Publication number: 20140109931
    Abstract: A composition and method for removing copper-containing post-etch and/or post-ash residue from patterned microelectronic devices is described. The removal composition includes water, a water-miscible organic solvent, an amine compound, an organic acid, and a fluoride ion source. The compositions effectively remove the copper-containing post-etch residue from the microelectronic device without damaging exposed low-k dielectric and metal interconnect materials.
    Type: Application
    Filed: August 27, 2013
    Publication date: April 24, 2014
    Applicant: AIR PRODUCTS AND CHEMICALS INC.
    Inventors: Yi Chia Lee, Madhukar Bhaskara Rao, Gautam Banerjee, Wen Dar Liu, Aiping Wu, Seiji Inaoka
  • Publication number: 20140100151
    Abstract: Stripping and cleaning compositions suitable for the removal of film resists include about 2-55% by weight of at least one alkanolamine or at least one morpholine or mixtures thereof; about 20-94% by weight of at least one organic solvent; and about 0.5-60% by weight water based on the total weight of the composition.
    Type: Application
    Filed: October 1, 2013
    Publication date: April 10, 2014
    Applicant: AIR PRODUCTS AND CHEMICALS INC.
    Inventors: Matthew I. Egbe, Aiping Wu, Madhukar Bhaskara Rao
  • Publication number: 20130295334
    Abstract: Described herein is a method for removing at least a portion of the carbon-containing species within an organosilicate (OSG) film by treating the OSG film with a chemical, such as but not limited to an oxidizer, exposing the OSG film to an energy source comprising ultraviolet light, or treating the OSG film with a chemical and exposing the OSG film to an energy source.
    Type: Application
    Filed: July 8, 2013
    Publication date: November 7, 2013
    Inventors: Aiping Wu, Scott Jeffrey Weigel, Thomas Albert Braymer
  • Publication number: 20130296215
    Abstract: The present invention relates to water-rich formulations and the method using same, to remove bulk photoresists, post-etched and post-ashed residues, residues from Al back-end-of-the-line interconnect structures, as well as contaminations. The formulation comprises: hydroxylamine; corrosion inhibitor containing a mixture of alkyl dihydroxybenzene and hydroxyquinoline; an alkanolamine, a water-soluble solvent or the combination of the two; and at least 50% by weight of water.
    Type: Application
    Filed: July 8, 2013
    Publication date: November 7, 2013
    Inventors: Madhukar Bhaskara RAO, Gautam BANERJEE, Thomas Michael Wieder, Yi-Chia LEE, Wen Dar LIU, Aiping WU
  • Patent number: 8518865
    Abstract: The present invention relates to water-rich formulations and the method using same, to remove bulk photoresists, post-etched and post-ashed residues, residues from Al back-end-of-the-line interconnect structures, as well as contaminations. The formulation comprises: hydroxylamine; corrosion inhibitor containing a mixture of alkyl dihydroxybenzene and hydroxyquinoline; an alkanolamine, a water-soluble solvent or the combination of the two; and at least 50% by weight of water.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: August 27, 2013
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Madhukar Bhaskara Rao, Gautam Banerjee, Thomas Michael Wieder, Yi-Chia Lee, Wen Dar Liu, Aiping Wu