Patents by Inventor Li-Yen Liu

Li-Yen Liu 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: 12002684
    Abstract: A method for CMP includes following operations. A metal stack is received. The metal layer stack includes at least a first metal layer and a second metal layer, and a top surface of the first metal layer and a top surface of the second metal layer are exposed. A protecting layer is formed over the second metal layer. A portion of the first metal layer is etched. The protecting layer protects the second metal layer during the etching of the portion of the first metal layer. A top surface of the etched first metal layer is lower than a top surface of the protecting layer. The protecting layer is removed from the second metal layer.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: June 4, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Ji Cui, Fu-Ming Huang, Ting-Kui Chang, Tang-Kuei Chang, Chun-Chieh Lin, Wei-Wei Liang, Liang-Guang Chen, Kei-Wei Chen, Hung Yen, Ting-Hsun Chang, Chi-Hsiang Shen, Li-Chieh Wu, Chi-Jen Liu
  • Patent number: 11955553
    Abstract: Embodiments disclosed herein relate to using an implantation process and a melting anneal process performed on a nanosecond scale to achieve a high surface concentration (surface pile up) dopant profile and a retrograde dopant profile simultaneously. In an embodiment, a method includes forming a source/drain structure in an active area on a substrate, the source/drain structure including a first region comprising germanium, implanting a first dopant into the first region of the source/drain structure to form an amorphous region in at least the first region of the source/drain structure, implanting a second dopant into the amorphous region containing the first dopant, and heating the source/drain structure to liquidize and convert at least the amorphous region into a crystalline region, the crystalline region containing the first dopant and the second dopant.
    Type: Grant
    Filed: February 24, 2023
    Date of Patent: April 9, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Su-Hao Liu, Kuo-Ju Chen, Wen-Yen Chen, Ying-Lang Wang, Liang-Yin Chen, Li-Ting Wang, Huicheng Chang
  • Publication number: 20240088225
    Abstract: A method includes forming a gate stack on a first portion of a semiconductor substrate, removing a second portion of the semiconductor substrate on a side of the gate stack to form a recess, growing a semiconductor region starting from the recess, implanting the semiconductor region with an impurity, and performing a melt anneal on the semiconductor region. At least a portion of the semiconductor region is molten during the melt anneal.
    Type: Application
    Filed: November 14, 2023
    Publication date: March 14, 2024
    Inventors: Su-Hao Liu, Wen-Yen Chen, Li-Heng Chen, Li-Ting Wang, Liang-Yin Chen, Huicheng Chang, Yee-Chia Yeo, Ying-Lang Wang
  • Patent number: 7846538
    Abstract: A connection structure includes a workpiece, and a coating layer disposed above the workpiece. A groove is formed on a surface of the coating layer. The connection structure further includes an object installed inside the groove and adhered to the workpiece.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: December 7, 2010
    Assignee: Micro-Star Int'l Co. Ltd.
    Inventors: Hun-Jen Chen, Li-Yen Liu, Hsiu-Yu Fan, Tsun-Wu Liu
  • Publication number: 20080041101
    Abstract: A connection structure includes a workpiece, and a coating layer disposed above the workpiece. A groove is formed on a surface of the coating layer. The connection structure further includes an object installed inside the groove and adhered to the workpiece.
    Type: Application
    Filed: November 14, 2006
    Publication date: February 21, 2008
    Inventors: Hun-Jen Chen, Li-Yen Liu, Hsiu-Yu Fan, Tsun-Wu Liu
  • Patent number: 6591861
    Abstract: A closed water-container storing device with the water inlet/outlet, comprising a water storing bag container for storing water, a water inlet for the inflow of water from outside source to said water storing bag container, a water outlet for outflow of water within water storing bag container, and a float device for the control of stop/start operation of the inflow of water from outside source to said water storing bag container, when the water within said water storing bag container has reached a predetermined level.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: July 15, 2003
    Assignee: An Ho Hsing Co., Ltd.
    Inventors: Li-Tai Liu, Li-Yen Liu
  • Publication number: 20020162588
    Abstract: A closed water-container storing device with the water inlet/outlet, comprising a water storing bag container for storing water, a water inlet for the inflow of water from outside source to said water storing bag container, a water outlet for outflow of water within water storing bag container, and a float device for the control of stop/start operation of the inflow of water from outside source to said water storing bag container, when the water within said water storing bag container has reached a predetermined level.
    Type: Application
    Filed: May 7, 2001
    Publication date: November 7, 2002
    Inventors: Li-Tai Liu, Li-Yen Liu