Patents by Inventor Wei-Shuo Kao

Wei-Shuo Kao 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: 9281311
    Abstract: An integrated circuit includes a plurality of metal layers of bit cells of a memory cell array disposed in a first metal layer and extending in a first direction, a plurality of word lines of the memory cell array disposed in a second metal layer and extending in a second direction that is different from the first direction, and at least two conductive traces disposed in a third metal layer substantially adjacent to each other and extending at least partially across the memory cell array, a first one of the at least two conductive traces coupled to a driving source node of a write assist circuit, and a second conductive trace of the at least two conductive traces coupled to an enable input of the write-assist circuit, where the at least two conductive traces form at least one embedded capacitor having a capacitive coupling to the bit line.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: March 8, 2016
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ching-Wei Wu, Wei-Shuo Kao, Chia-Cheng Chen, Kuang Ting Chen
  • Patent number: 9230622
    Abstract: A method includes generating a first and a second internal clock signal from a clock signal, wherein a first internal clock signal edge of the first internal clock signal and a second internal clock signal edge of the second internal clock signal are generated from a same edge of the clock signal. A first one of the first and the second internal clock edges is used to trigger a first operation on a six-transistor (6T) Static Random Access Memory (SRAM) cell of a SRAM array. A second one of the first and the second internal clock edges is used to trigger a second operation on the 6T SRAM cell. The first and the second operations are performed on different ports of the 6T SRAM. The first and the second operations are performed within a same clock cycle of the clock signal.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: January 5, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ching-Wei Wu, Chia-Cheng Chen, Kuang Ting Chen, Wei-Shuo Kao, Jui-Che Tsai
  • Publication number: 20150076575
    Abstract: An integrated circuit includes a plurality of metal layers of bit cells of a memory cell array disposed in a first metal layer and extending in a first direction, a plurality of word lines of the memory cell array disposed in a second metal layer and extending in a second direction that is different from the first direction, and at least two conductive traces disposed in a third metal layer substantially adjacent to each other and extending at least partially across the memory cell array, a first one of the at least two conductive traces coupled to a driving source node of a write assist circuit, and a second conductive trace of the at least two conductive traces coupled to an enable input of the write-assist circuit, where the at least two conductive traces form at least one embedded capacitor having a capacitive coupling to the bit line.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 19, 2015
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ching-Wei WU, Wei-Shuo KAO, Chia-Cheng CHEN, Kuang Ting CHEN
  • Patent number: 8659090
    Abstract: A device includes an active region formed of a semiconductor material, a gate dielectric at a surface of the active region, and a gate electrode over the gate dielectric. A first source/drain region and a second source/drain region are on opposite sides of the gate electrode. A Contact Etch Stop Layer (CESL) is over the first and the second source/drain regions. An Inter-Layer Dielectric (ILD) includes a top surface substantially level with a top surface of the gate electrode. A first contact plug is over and electrically connected to the first source/drain region. A second contact plug is over and aligned to the second source/drain region. The second contact plug and the second source/drain region are spaced apart from each other by a portion of the first CESL to form a capacitor.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 25, 2014
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chia-En Huang, Wun-Jie Lin, Ling-Chang Hu, Hsiao-Lan Yang, Chih-Chieh Chiu, Wei-Shuo Kao, Hong-Chen Cheng, Fu-An Wu, Jung-Ping Yang, Cheng Hung Lee
  • Publication number: 20130161707
    Abstract: A device includes an active region formed of a semiconductor material, a gate dielectric at a surface of the active region, and a gate electrode over the gate dielectric. A first source/drain region and a second source/drain region are on opposite sides of the gate electrode. A Contact Etch Stop Layer (CESL) is over the first and the second source/drain regions. An Inter-Layer Dielectric (ILD) includes a top surface substantially level with a top surface of the gate electrode. A first contact plug is over and electrically connected to the first source/drain region. A second contact plug is over and aligned to the second source/drain region. The second contact plug and the second source/drain region are spaced apart from each other by a portion of the first CESL to form a capacitor.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 27, 2013
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chia-En Huang, Wun-Jie Lin, Ling-Chang Hu, Hsiao-Lan Yang, Chih-Chieh Chiu, Wei-Shuo Kao, Hong-Chen Cheng, Fu-An Wu, Jung-Ping Yang, Cheng Hung Lee