Patents by Inventor Kuan-Liang Liu

Kuan-Liang 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: 10147800
    Abstract: A method of fabricating a transistor with reduced hot carrier injection effects includes providing a substrate covered by a gate material layer. Later, the gate material layer is patterned into a gate electrode. Then, a mask layer is formed to cover part of the gate electrode and expose two ends of the gate electrode. Finally, a first implantation process is performed to implant dopants through the exposed two ends of the gate electrode into the substrate directly under the gate electrode to form two LDD regions by taking the mask layer as a mask.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: December 4, 2018
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Kuan-Liang Liu, Shih-Yin Hsiao, Ching-Chung Yang
  • Publication number: 20180269161
    Abstract: A hybrid-bonding structure and a method for forming a hybrid-bonding structure are provided. The hybrid-bonding structure includes a first semiconductor substrate, a first conductive line and a first dielectric dummy pattern. The first conductive line is formed over the first semiconductor substrate. A surface of the first conductive line is configured to hybrid-bond with a second conductive line over a second semiconductor substrate. The first dielectric dummy pattern is formed over the first semiconductor substrate and embedded in the first conductive line.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 20, 2018
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Kuo-Ming WU, Kuan-Liang LIU, Pao-Tung CHEN
  • Publication number: 20180233416
    Abstract: A method for manufacturing a semiconductor device and a device manufactured using the same are provided. According to a method approach of the embodiment, a substrate having at least a first area with a plurality of polysilicon gates and a second area adjacent to the first area is provided. A contact etch stop layer (CESL) over the polysilicon gates of the first area is formed, and the CESL extends to the second area. Then, a dielectric layer is formed on the CESL, and a nitride layer is formed on the dielectric layer. The nitride layer is patterned to expose the dielectric layer in the first area and to form a pattern of dummy nitrides on the dielectric layer in the second area.
    Type: Application
    Filed: April 16, 2018
    Publication date: August 16, 2018
    Inventors: Shih-Yin Hsiao, Kuan-Liang Liu
  • Publication number: 20180175012
    Abstract: A three-dimensional (3D) integrated circuit (IC) includes a first IC die and a second IC die. The first IC die includes a first semiconductor substrate, and a first interconnect structure over the first semiconductor substrate. The second IC die includes a second semiconductor substrate, and a second interconnect structure that separates the second semiconductor substrate from the first interconnect structure. A seal ring structure separates the first interconnect structure from the second interconnect structure and perimetrically surrounds a gas reservoir between the first IC die and second IC die. The seal ring structure includes a sidewall gas-vent opening structure configured to allow gas to pass between the gas reservoir and an ambient environment surrounding the 3D IC.
    Type: Application
    Filed: August 1, 2017
    Publication date: June 21, 2018
    Inventors: Kuo-Ming Wu, Kuan-Liang Liu, Wen-De Wang, Yung-Lung Lin
  • Patent number: 9985129
    Abstract: A high-voltage MOS transistor includes a semiconductor substrate, a gate oxide layer on the semiconductor substrate, a gate on the gate oxide layer, a spacer covering a sidewall of the gate, a source on one side of the gate, and a drain on the other side of the gate. The gate includes at least a first discrete segment and a second discrete segment. The first discrete segment is not in direct contact with the second discrete segment. The spacer fills into a gap between the first discrete segment and the second discrete segment.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: May 29, 2018
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Shih-Yin Hsiao, Kuan-Liang Liu, Ching-Chung Yang, Kai-Kuen Chang, Ping-Hung Chiang, Nien-Chung Li, Wen-Fang Lee, Chih-Chung Wang
  • Patent number: 9978647
    Abstract: A method for manufacturing a semiconductor device and a device manufactured using the same are provided. According to a method approach of the embodiment, a substrate having at least a first area with a plurality of polysilicon gates and a second area adjacent to the first area is provided. A contact etch stop layer (CESL) over the polysilicon gates of the first area is formed, and the CESL extends to the second area. Then, a dielectric layer is formed on the CESL, and a nitride layer is formed on the dielectric layer. The nitride layer is patterned to expose the dielectric layer in the first area and to form a pattern of dummy nitrides on the dielectric layer in the second area.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: May 22, 2018
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Shih-Yin Hsiao, Kuan-Liang Liu
  • Publication number: 20180114842
    Abstract: A high voltage semiconductor device and a manufacturing method thereof are provided in the present invention. A recess is formed in a semiconductor substrate, and a gate dielectric layer and a main gate structure are formed in the recess. Therefore, the high voltage semiconductor device formed by the manufacturing method of the present invention may include the main gate structure lower than a top surface of an isolation structure formed in the semiconductor substrate. Problems about integrated manufacturing processes of the high voltage semiconductor device and other kinds of semiconductor devices when the gate structure is relatively high because of the thicker gate dielectric layer required in the high voltage semiconductor device may be improved accordingly.
    Type: Application
    Filed: November 15, 2016
    Publication date: April 26, 2018
    Inventors: Shih-Yin Hsiao, Kuan-Liang Liu, Ching-Chung Yang, Ping-Hung Chiang
  • Publication number: 20180097104
    Abstract: A high-voltage MOS transistor includes a semiconductor substrate, a gate oxide layer on the semiconductor substrate, a gate on the gate oxide layer, a spacer covering a sidewall of the gate, a source on one side of the gate, and a drain on the other side of the gate. The gate includes at least a first discrete segment and a second discrete segment. The first discrete segment is not in direct contact with the second discrete segment. The spacer fills into a gap between the first discrete segment and the second discrete segment.
    Type: Application
    Filed: November 22, 2017
    Publication date: April 5, 2018
    Inventors: Shih-Yin Hsiao, Kuan-Liang Liu, Ching-Chung Yang, Kai-Kuen Chang, Ping-Hung Chiang, Nien-Chung Li, Wen-Fang Lee, Chih-Chung Wang
  • Patent number: 9859417
    Abstract: A high-voltage MOS transistor includes a semiconductor substrate, a gate oxide layer on the semiconductor substrate, a gate on the gate oxide layer, a spacer covering a sidewall of the gate, a source on one side of the gate, and a drain on the other side of the gate. The gate includes at least a first discrete segment and a second discrete segment. The first discrete segment is not in direct contact with the second discrete segment. The spacer fills into a gap between the first discrete segment and the second discrete segment.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: January 2, 2018
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Shih-Yin Hsiao, Kuan-Liang Liu, Ching-Chung Yang, Kai-Kuen Chang, Ping-Hung Chiang, Nien-Chung Li, Wen-Fang Lee, Chih-Chung Wang
  • Publication number: 20170345926
    Abstract: A high-voltage MOS transistor includes a semiconductor substrate, a gate oxide layer on the semiconductor substrate, a gate on the gate oxide layer, a spacer covering a sidewall of the gate, a source on one side of the gate, and a drain on the other side of the gate. The gate includes at least a first discrete segment and a second discrete segment. The first discrete segment is not in direct contact with the second discrete segment. The spacer fills into a gap between the first discrete segment and the second discrete segment.
    Type: Application
    Filed: June 24, 2016
    Publication date: November 30, 2017
    Inventors: Shih-Yin Hsiao, Kuan-Liang Liu, Ching-Chung Yang, Kai-Kuen Chang, Ping-Hung Chiang, Nien-Chung Li, Wen-Fang Lee, Chih-Chung Wang
  • Publication number: 20170297902
    Abstract: A semiconductor structure includes a first substrate including a cavity extended into the first substrate, a device disposed within the cavity, a first dielectric layer disposed over the first substrate and a first conductive structure surrounded by the first dielectric layer, and a second substrate including a second dielectric layer disposed over the second substrate and a second conductive structure surrounded by the second dielectric layer, wherein the first conductive structure is bonded with the second conductive structure and the first dielectric layer is bonded with the second dielectric layer to seal the cavity.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 19, 2017
    Inventors: HUNG-HUA LIN, PING-YIN LIU, KUAN-LIANG LIU, CHIA-SHIUNG TSAI, ALEXANDER KALNITSKY
  • Patent number: 9754813
    Abstract: A bonding chuck is discussed with methods of using the bonding chuck and tools including the bonding chuck. A method includes loading a first wafer on first surface of a first bonding chuck, loading a second wafer on a second bonding chuck, and bonding the first wafer to the second wafer. The first surface is defined at least in part by a first portion of a first spherical surface and a second portion of a second spherical surface. The first spherical surface has a first radius, and the second spherical surface has a second radius. The first radius is less than the second radius.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: September 5, 2017
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Hui Huang, Yen-Chang Chu, Kuan-Liang Liu, Ping-Yin Liu, Cheng-Yuan Tsai, Yeur-Luen Tu, Chia-Shiung Tsai, Ru-Liang Lee
  • Publication number: 20170243950
    Abstract: A method of fabricating a transistor with reduced hot carrier injection effects includes providing a substrate covered by a gate material layer. Later, the gate material layer is patterned into a gate electrode. Then, a mask layer is formed to cover part of the gate electrode and expose two ends of the gate electrode. Finally, a first implantation process is performed to implant dopants through the exposed two ends of the gate electrode into the substrate directly under the gate electrode to form two LDD regions by taking the mask layer as a mask.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 24, 2017
    Inventors: Kuan-Liang Liu, Shih-Yin Hsiao, Ching-Chung Yang
  • Patent number: 9741850
    Abstract: A semiconductor device having a substrate, a gate electrode, a source and a drain, and a buried gate dielectric layer is disclosed. The buried gate dielectric layer is disposed below said gate electrode and protrudes therefrom to said drain, thereby separating said gate electrode and said drain by a substantial distance to reduce gate induced drain leakage.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: August 22, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Shih-Yin Hsiao, Ching-Chung Yang, Ping-Hung Chiang, Nien-Chung Li, Wen-Fang Lee, Chih-Chung Wang, Kuan-Liang Liu, Kai-Kuen Chang
  • Publication number: 20170207191
    Abstract: A bonding system includes: a storage apparatus, including a chamber, wherein the chamber is configured to accommodate a first semiconductor wafer and a second semiconductor wafer transferred from a load port, and a gas is provided to the chamber to purge oxygen out of the chamber; a surface treatment station, configured to perform a surface activation upon the first and second semiconductor wafers transferred from the storage apparatus; a cleaning station, configured to remove undesirable substances from surfaces of the first and second semiconductor wafers transferred from the surface treatment station; and a pre-bonding station, configured to bond the first and second semiconductor wafers together to produce a bonded first and second semiconductor wafer pair, wherein the first and second semiconductor wafers are transferred from the cleaning station. An associated apparatus and method are also disclosed.
    Type: Application
    Filed: January 15, 2016
    Publication date: July 20, 2017
    Inventors: XIN-HUA HUANG, PING-YIN LIU, CHIN-WEI LIANG, YEONG-JYH LIN, KUAN-LIANG LIU, CHIA-SHIUNG TSAI
  • Publication number: 20170186652
    Abstract: A method for manufacturing a semiconductor device and a device manufactured using the same are provided. According to a method approach of the embodiment, a substrate having at least a first area with a plurality of polysilicon gates and a second area adjacent to the first area is provided. A contact etch stop layer (CESL) over the polysilicon gates of the first area is formed, and the CESL extends to the second area. Then, a dielectric layer is formed on the CESL, and a nitride layer is formed on the dielectric layer. The nitride layer is patterned to expose the dielectric layer in the first area and to form a pattern of dummy nitrides on the dielectric layer in the second area.
    Type: Application
    Filed: December 28, 2015
    Publication date: June 29, 2017
    Inventors: Shih-Yin Hsiao, Kuan-Liang Liu
  • Patent number: 9647060
    Abstract: A method for fabricating isolation device is disclosed. The method includes the steps of: providing a substrate; forming a shallow trench isolation (STI) in the substrate, the STI includes a first STI and a second STI, and the first STI surrounds a first device region and the second STI surrounds a second device region; forming a first doped region between and contact the first STI and the second STI; and forming a first gate structure on the first doped region, the first STI and the second STI.
    Type: Grant
    Filed: September 20, 2015
    Date of Patent: May 9, 2017
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Shih-Yin Hsiao, Kuan-Liang Liu
  • Publication number: 20170053823
    Abstract: A bonding chuck is discussed with methods of using the bonding chuck and tools including the bonding chuck. A method includes loading a first wafer on first surface of a first bonding chuck, loading a second wafer on a second bonding chuck, and bonding the first wafer to the second wafer. The first surface is defined at least in part by a first portion of a first spherical surface and a second portion of a second spherical surface. The first spherical surface has a first radius, and the second spherical surface has a second radius. The first radius is less than the second radius.
    Type: Application
    Filed: November 2, 2016
    Publication date: February 23, 2017
    Inventors: Chih-Hui Huang, Yen-Chang Chu, Kuan-Liang Liu, Ping-Yin Liu, Cheng-Yuan Tsai, Yeur-Luen Tu, Chia-Shiung Tsai, Ru-Liang Lee
  • Publication number: 20170047397
    Abstract: A method for fabricating isolation device is disclosed. The method includes the steps of: providing a substrate; forming a shallow trench isolation (STI) in the substrate, the STI includes a first STI and a second STI, and the first STI surrounds a first device region and the second STI surrounds a second device region; forming a first doped region between and contact the first STI and the second STI; and forming a first gate structure on the first doped region, the first STI and the second STI.
    Type: Application
    Filed: September 20, 2015
    Publication date: February 16, 2017
    Inventors: Shih-Yin Hsiao, Kuan-Liang Liu
  • Patent number: 9490158
    Abstract: A bonding chuck is discussed with methods of using the bonding chuck and tools including the bonding chuck. A method includes loading a first wafer on first surface of a first bonding chuck, loading a second wafer on a second bonding chuck, and bonding the first wafer to the second wafer. The first surface is defined at least in part by a first portion of a first spherical surface and a second portion of a second spherical surface. The first spherical surface has a first radius, and the second spherical surface has a second radius. The first radius is less than the second radius.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: November 8, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Hui Huang, Yen-Chang Chu, Kuan-Liang Liu, Ping-Yin Liu, Cheng-Yuan Tsai, Yeur-Luen Tu, Chia-Shiung Tsai, Ru-Liang Lee