Patents by Inventor Zhong Tang Xuan

Zhong Tang Xuan 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: 7883979
    Abstract: A semiconductor device includes a substrate, a first device situated on the substrate, the first device including a source and a drain each situated extending a first depth within the substrate, and a second device situated on the substrate, the second device including a source and a drain each situated extending a second depth within the substrate, the second depth not equal to the first depth.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: February 8, 2011
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Wei Chen, Zhong Tang Xuan, Shui-Ming Cheng, Sheng-Da Liu
  • Patent number: 7611938
    Abstract: A method comprises forming a first semiconductor device in a substrate, where the first semiconductor device comprises a gate structure, a spacer disposed on sidewalls of the gate structure, the spacer having a first thickness, and raised source and drain regions disposed on either side of the gate structure. The method further comprises forming a second semiconductor device in the substrate and electrically isolated from the first semiconductor device, where the second semiconductor device comprises a gate structure, a spacer disposed on sidewalls of the gate structure, the spacer having a second thickness less than the first thickness of the spacer of the first semiconductor device, and recessed source and drain regions disposed on either side of the gate structure.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: November 3, 2009
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shui-Ming Cheng, Hung-Wei Chen, Zhong Tang Xuan
  • Patent number: 7425740
    Abstract: A one transistor (1T-RAM) bit cell and method for manufacture are provided. A metal-insulator-metal (MIM) capacitor structure and method of manufacturing it in an integrated process that includes a finFET transistor for the 1T-RAM bit cell is provided. In some embodiments, the finFET transistor and MIM capacitor are formed in a memory region and an asymmetric processing method is disclosed, which allows planar MOSFET transistors to be formed in another region of a single device. In some embodiments, the 1T-RAM cell and additional transistors may be combined to form a macro cell, multiple macro cells may form an integrated circuit. The MIM capacitors may include nanoparticles or nanostructures to increase the effective capacitance. The finFET transistors may be formed over an insulator. The MIM capacitors may be formed in interlevel insulator layers above the substrate. The process provided to manufacture the structure may advantageously use conventional photomasks.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: September 16, 2008
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sheng-Da Liu, Hung-Wei Chen, Chang-Yun Chang, Zhong Tang Xuan, Ju-Wang Hsu
  • Patent number: 7271448
    Abstract: A multiple gate region FET device for forming up to 6 FET devices and method for forming the same, the device including a multiple fin shaped structure comprising a semiconductor material disposed on a substrate; said multiple fin shaped structure comprising substantially parallel spaced apart sidewall portions, each of said sidewall portions comprising major inner and outer surfaces and an upper surface; wherein, each of said surfaces comprises a surface for forming an overlying field effect transistor (FET).
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: September 18, 2007
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ju-Wang Hsu, Jyu-Horng Shieh, Hun-Jan Tao, Chang-Yun Chang, Zhong Tang Xuan, Sheng-Da Liu
  • Patent number: 7176522
    Abstract: A method comprises forming a first semiconductor device in a substrate, where the first semiconductor device comprises a gate structure, a spacer disposed on sidewalls of the gate structure, the spacer having a first thickness, and raised source and drain regions disposed on either side of the gate structure. The method further comprises forming a second semiconductor device in the substrate and electrically isolated from the first semiconductor device, where the second semiconductor device comprises a gate structure, a spacer disposed on sidewalls of the gate structure, the spacer having a second thickness less than the first thickness of the spacer of the first semiconductor device, and recessed source and drain regions disposed on either side of the gate structure.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: February 13, 2007
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shui-Ming Cheng, Hung-Wei Chen, Zhong Tang Xuan