Patents by Inventor Ya-Lin Chang

Ya-Lin Chang 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).

  • Magnetoresistive random access memory structure
    Patent number: 11917923
    Abstract: A magnetoresistive random access memory (MRAM) structure, including a substrate and multiple MRAM cells on the substrate, wherein the MRAM cells are arranged in a memory region adjacent to a logic region. An ultra low-k (ULK) layer covers the MRAM cells, wherein the surface portion of ultra low-k layer is doped with fluorine, and dents are formed on the surface of ultra low-k layer at the boundaries between the memory region and the logic region.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: February 27, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Hui-Lin Wang, Ching-Hua Hsu, Si-Han Tsai, Shun-Yu Huang, Chen-Yi Weng, Ju-Chun Fan, Che-Wei Chang, Yi-Yu Lin, Po-Kai Hsu, Jing-Yin Jhang, Ya-Jyuan Hung
  • Silicon dioxide composite particle with far-infrared radioactivity; precursor of the same and application thereof
    Patent number: 11795058
    Abstract: The present invention relates to a silicon dioxide composite particle with far-infrared radioactivity, which is formed by the hydrolysis, condensation and polymerization of an organic silane precursor having the structure of the formula (I) with a tetra-alkoxysilane. The high stability of organic silane precursor compounds and the low biotoxicity of silicon dioxide composite particles make the present far-infrared radioactive silicon dioxide composite particles of great potential for extensive use in related bio-products.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: October 24, 2023
    Assignees: NATIONAL CHI NAN UNIVERSITY, GREAT CHAIN CHEMICAL LTD.
    Inventors: Long-Li Lai, Cheng-Hua Lee, Yao-Chih Lu, Ya-Lin Chang
  • Process for preparing a triazine-based precursor, the precursor prepared thereby, a method for producing a micro-particulate complex using the precursor, and the micro-particulate complex produced thereby
    Patent number: 11299504
    Abstract: A process for preparing a triazine-based precursor for producing a micro-particulate complex containing a far infrared-emissive silica particle comprises steps of: a) subjecting 2-4-6-trichloro-1,3,5-triazine and a first nucleophilic compound to a displacement reaction in the presence of a first solvent at a first temperature range to form an intermediate; and b) subjecting the intermediate and a second nucleophilic compound to a further displacement reaction in the presence of a second solvent at a second temperature range higher than the first temperature range.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: April 12, 2022
    Assignees: NATIONAL CHI NAN UNIVERSITY, GREAT CHAIN CHEMICAL LTD
    Inventors: Long-Li Lai, Cheng-Hua Lee, Jhih-Yuan Tong, Yan-Chih Lu, Yu-You Lin, Ya-Lin Chang
  • Process for Preparing a Triazine-Based Precursor, the Precursor Prepared Thereby, a Method for Producing a Micro-Particulate Complex Using the Precursor, and the Micro-Particulate Complex Produced Thereby
    Publication number: 20200369687
    Abstract: A process for preparing a triazine-based precursor for producing a micro-particulate complex containing a far infrared-emissive silica particle comprises steps of: a) subjecting 2-4-6-trichloro-1,3,5-triazine and a first nucleophilic compound to a displacement reaction in the presence of a first solvent at a first temperature range to form an intermediate; and b) subjecting the intermediate and a second nucleophilic compound to a further displacement reaction in the presence of a second solvent at a second temperature range higher than the first temperature range.
    Type: Application
    Filed: August 10, 2020
    Publication date: November 26, 2020
    Inventors: Long-Li Lai, Cheng-Hua Lee, Jhih-Yuan Tong, Yan-Chih Lu, Yu-You Lin, Ya-Lin Chang
  • SILICON DIOXIDE COMPOSITE PARTICLE WITH FAR-INFRARED RADIOACTIVITY; PRECURSOR OF THE SAME AND APPLICATION THEREOF
    Publication number: 20200180967
    Abstract: The present invention relates to a silicon dioxide composite particle with far-infrared radioactivity, which is formed by the hydrolysis, condensation and polymerization of an organic silane precursor having the structure of the formula (I) with a tetra-alkoxysilane. The high stability of organic silane precursor compounds and the low biotoxicity of silicon dioxide composite particles make the present far-infrared radioactive silicon dioxide composite particles of great potential for extensive use in related bio-products.
    Type: Application
    Filed: August 5, 2019
    Publication date: June 11, 2020
    Inventors: Long-Li LAI, Cheng-Hua LEE, Yao-Chih LU, Ya-Lin CHANG
  • Process for Preparing a Triazine-Based Precursor, the Precursor Prepared Thereby, a Method for Producing a Micro-Particulate Complex Using the Precursor, and the Micro-Particulate Complex Produced Thereby
    Publication number: 20190055270
    Abstract: A process for preparing a triazine-based precursor for producing a micro-particulate complex containing a far infrared-emissive silica particle comprises steps of: a) subjecting 2-4-6-trichloro-1,3,5-triazine and a first nucleophilic compound to a displacement reaction in the presence of a first solvent at a first temperature range to form an intermediate; and b) subjecting the intermediate and a second nucleophilic compound to a further displacement reaction in the presence of a second solvent at a second temperature range higher than the first temperature range.
    Type: Application
    Filed: May 11, 2018
    Publication date: February 21, 2019
    Inventors: Long-Li Lai, Cheng-Hua Lee, Jhih-Yuan Tong, Yan-Chih Lu, Yu-You Lin, Ya-Lin Chang