Patents by Inventor Chao Hsiang Chen

Chao Hsiang Chen 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: 20240103377
    Abstract: A composition and method for removing a metal-containing layer or portion of a layer of a pellicle of an EUV mask are provided. The composition includes water; one or more oxidizing agents; and one or more acids. The method includes forming one or more layers over a silicon substrate with at least one of those layers includes a metal containing layer and removing the metal containing layer by contacting the metal containing layer with the composition of the disclosed and claimed subject matter.
    Type: Application
    Filed: October 15, 2020
    Publication date: March 28, 2024
    Applicant: Versum Materials US, LLC
    Inventors: CHAO-HSIANG CHEN, CHUNG-YI CHANG, YI-CHIA LEE, WEN DAR LIU
  • Publication number: 20240010915
    Abstract: Etching composition suitable for etching titanium nitride and molybdenum from a microelectronic device, which includes, consists essentially of, or consists of, in effective amounts: water; HNO3; optionally, at least one chloride ion source selected from the group of NH4Cl and HCl; a base selected from the group of an alkanolamine, NH4OH, a quaternary ammonium hydroxide, and mixtures thereof; optionally, at least one fluoride ion source; optionally, at least one heteroaromatic compound; and optionally, at least one water-miscible solvent selected from the group of diethylene glycol butyl ether, sulfolane, and propylene carbonate.
    Type: Application
    Filed: March 2, 2021
    Publication date: January 11, 2024
    Applicant: Versum Materials US, LLC
    Inventors: CHAO-HSIANG CHEN, JHIH KUEI GE, YI-CHIA LEE, WEN DAR LIU
  • Patent number: 11017995
    Abstract: Composition, method and system for TiN hard mask removal from electronic circuitry devices, such as advanced pattern wafers have been disclosed. The cleaning compositions preferably comprise an etchant agent (also referred to as a base), an oxidizing agent, an oxidizing stabilizer (also referred to as a chelating agent), an ammonium salt, a corrosion inhibitor, and a solvent. Other optional additives could be provided. It is preferable that the pH of the cleaning composition be greater than 5.5. The cleaning composition is preferably free from dimethyl sulfoxide and tetramethylammonium hydroxide.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: May 25, 2021
    Assignee: Versum Materials US, LLC
    Inventors: Chao-Hsiang Chen, Yi-Chia Lee, Wen Dar Liu, Chung-Yi Chang
  • Publication number: 20200035485
    Abstract: Composition, method and system for TiN hard mask removal from electronic circuitry devices, such as advanced pattern wafers have been disclosed. The cleaning compositions preferably comprise an etchant agent (also referred to as a base), an oxidizing agent, an oxidizing stabilizer (also referred to as a chelating agent), an ammonium salt, a corrosion inhibitor, and a solvent. Other optional additives could be provided. It is preferable that the pH of the cleaning composition be greater than 5.5. The cleaning composition is preferably free from dimethyl sulfoxide and tetramethylammonium hydroxide.
    Type: Application
    Filed: July 19, 2019
    Publication date: January 30, 2020
    Applicant: Versum Materials US, LLC
    Inventors: Chao-Hsiang Chen, Yi-Chia Lee, Wen Dar Liu, Chung-Yi Chang
  • Publication number: 20110166217
    Abstract: A pharmaceutical composition for preventing and/or treating bone loss is disclosed. The pharmaceutical composition includes an effective amount of a licorice, black bean, Cnidi Fructus, and buckhorn.
    Type: Application
    Filed: March 14, 2011
    Publication date: July 7, 2011
    Inventors: Chao Hsiang CHEN, Mei Yin CHIEN, Wen Mei FU, Jin-Ming CHANG
  • Publication number: 20110160298
    Abstract: A pharmaceutical composition for preventing and/or treating bone loss is disclosed. The pharmaceutical composition includes an effective amount of a licorice, black bean, Cnidi Fructus, and buckhorn.
    Type: Application
    Filed: March 14, 2011
    Publication date: June 30, 2011
    Inventors: Chao Hsiang CHEN, Mei Yin Chien, Wen Mei Hu, Jin-Ming Chang
  • Patent number: 7914821
    Abstract: A pharmaceutical composition for preventing and/or treating bone loss is disclosed. The pharmaceutical composition includes an effective amount of a licorice, black bean, Cnidi Fructus, and buckhorn.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: March 29, 2011
    Assignee: KO DA Pharmaceuticals Co., Ltd.
    Inventors: Chao Hsiang Chen, Mei-Yin Chien, Wen-Mei Fu, Jin-Ming Chang
  • Publication number: 20110039898
    Abstract: A method for scavenging free radicals and inhibiting tyrosinase and melanin is provided. The method includes administering to a subject of effective amounts in a pharmaceutical composition comprising a compound of Formula (I) or (II) and a pharmaceutical acceptable salt, metal salt or solvent. In Formula (II), R is C1-6 alkyl, vitamin C or sugar. X is chlorine, bromine or iodine. The subject is a human. The pharmaceutical composition is for external and internal use.
    Type: Application
    Filed: October 30, 2009
    Publication date: February 17, 2011
    Inventors: Chao-Hsiang CHEN, Mei-Yin Chien, Wen-Chi Hou, Yin-Hsiu Lin
  • Publication number: 20090226551
    Abstract: A pharmaceutical composition for preventing and/or treating bone loss is disclosed. The pharmaceutical composition includes an effective amount of a licorice, black bean, Cnidi Fructus, and buckhorn.
    Type: Application
    Filed: March 7, 2008
    Publication date: September 10, 2009
    Inventors: Chao Hsiang CHEN, Mei-Yin Chien, Wen-Mei Fu, Jin-Ming Chang
  • Publication number: 20080128482
    Abstract: This system of identification and labeling is set on the container or package of drugs and contains drug identification units for the identification of the drug name, including identification units of manufacturing batch number and time. The identification unit of manufacturing batch number is used for the identification of the batch number of the drug while the time identification unit for the identification of the expiry date of the drug, quickly making the consumers understanding the manufacturing batch number and the expiry date of the drug through reading the identification labels so as to effectively control the quality and conservation of drugs.
    Type: Application
    Filed: July 13, 2007
    Publication date: June 5, 2008
    Inventors: Chao-Hsiang Chen, Yi-Jui Chang, Mei-Limg Chen