Patents by Inventor Yt Tsai

Yt Tsai 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: 7888216
    Abstract: A method of fabricating a semiconductor device includes forming in the substrate a well region comprising a first type of dopant; forming in the well region a base region comprising a second type of dopant different from the first type of dopant; and forming in the substrate source and drain regions comprising the first type of dopant. The method further includes forming on the substrate a gate electrode interposed laterally between the source and drain regions; and forming on the substrate a gate spacer disposed laterally between the source region and the gate electrode adjacent a side of the gate electrode and having a conductive feature embedded therein. The well region surrounds the drain region and the base region, and the base region is disposed partially underlying the gate electrode surrounding the source region defining a channel under the gate electrode of having a length substantially less than half the length of the gate electrode.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: February 15, 2011
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu Wen Chen, Fu-Hsin Chen, Tsung-Yi Huang, Yt Tsai
  • Publication number: 20100197098
    Abstract: A method of fabricating a semiconductor device includes forming in the substrate a well region comprising a first type of dopant; forming in the well region a base region comprising a second type of dopant different from the first type of dopant; and forming in the substrate source and drain regions comprising the first type of dopant. The method further includes forming on the substrate a gate electrode interposed laterally between the source and drain regions; and forming on the substrate a gate spacer disposed laterally between the source region and the gate electrode adjacent a side of the gate electrode and having a conductive feature embedded therein. The well region surrounds the drain region and the base region, and the base region is disposed partially underlying the gate electrode surrounding the source region defining a channel under the gate electrode of having a length substantially less than half the length of the gate electrode.
    Type: Application
    Filed: April 9, 2010
    Publication date: August 5, 2010
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yu Wen Chen, Fu-Hsin Chen, Tsung-Yi Huang, Yt Tsai
  • Patent number: 7723785
    Abstract: A semiconductor device includes a source region and a drain region disposed in a substrate wherein the source and drain regions have a first type of dopant; a gate electrode formed on the substrate interposed laterally between the source and drain regions; a gate spacer disposed on the substrate and laterally between the source region and the gate electrode, adjacent a side of the gate electrode; and a conductive feature embedded in the gate spacer.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: May 25, 2010
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yu Wen Chen, Fu-Hsin Chen, Tsung-Yi Huang, Yt Tsai
  • Publication number: 20090032868
    Abstract: A semiconductor device includes a source region and a drain region disposed in a substrate wherein the source and drain regions have a first type of dopant; a gate electrode formed on the substrate interposed laterally between the source and drain regions; a gate spacer disposed on the substrate and laterally between the source region and the gate electrode, adjacent a side of the gate electrode; and a conductive feature embedded in the gate spacer.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 5, 2009
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yu Wen Chen, Fu-Hsin Chen, Tsung-Yi Huang, Yt Tsai