Patents by Inventor Karen Mai

Karen Mai 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: 7498642
    Abstract: A semiconductor device having well-defined profiles is disclosed. A p-type pocket/halo region is preferably formed along a channel-side border of the heavily doped source/drain region to neutralize diffused n-type elements. A diffusion-retarding region is formed to retard diffusion for both p-type and n-type impurities by substantially overlapping or extending beyond the p-type pocket/halo region and the N+ S/D region at least on the channel side.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: March 3, 2009
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chien-Hao Chen, Chun-Feng Nieh, Karen Mai, Tze-Liang Lee
  • Publication number: 20060263992
    Abstract: A method for forming the N-MOS and P-MOS transistor regions of a CMOS device having reduced depletion of the N and P dopants in the polysilicon gate and reduced penetration of the N and P dopants through the oxide layer and into the channel regions of the N-MOS and the P-MOS transistor. The improvements are accomplished by a new implantation treatment of the polysilicon gate layer prior to implanting the polysilicon layer with the N-type dopant and the P-type dopant for purposes of forming the transistor gates. The implantation treatment prior to the N-type dopant and P-type dopant implantation, includes a first implantation of Ge and/or an inert gas and a second implantation of carbon or fluorine.
    Type: Application
    Filed: May 20, 2005
    Publication date: November 23, 2006
    Inventors: Chien-Hao Chen, Chun-Feng Nieh, Karen Mai, Tze-Liang Lee
  • Publication number: 20060244080
    Abstract: A semiconductor device having well-defined profiles is disclosed. A p-type pocket/halo region is preferably formed along a channel-side border of the heavily doped source/drain region to neutralize diffused n-type elements. A diffusion-retarding region is formed to retard diffusion for both p-type and n-type impurities by substantially overlapping or extending beyond the p-type pocket/halo region and the N+ S/D region at least on the channel side.
    Type: Application
    Filed: April 25, 2005
    Publication date: November 2, 2006
    Inventors: Chien-Hao Chen, Chun-Feng Nieh, Karen Mai, Tze-Liang Lee
  • Publication number: 20060154425
    Abstract: A semiconductor device and method for fabricating the same. The semiconductor device comprises a substrate with a gate stack thereon, wherein the gate stack comprises a high-k dielectric layer and a conductive layer sequentially overlying a portion of the substrate. An oxidation-proof layer overlies sidewalls of the gate stack. A pair of insulating spacers oppositely overlies sidewalls of the gate stack and the oxidation-proof layers thereon and a pair of source/drain regions is oppositely formed in the substrate adjacent to the gate stack, wherein the oxidation-proof layer suppresses oxidation encroachment between the gate stack and the substrate.
    Type: Application
    Filed: January 10, 2005
    Publication date: July 13, 2006
    Inventors: Ming-Ho Yang, Karen Mai, Liang-Gi Yao, Shih-Chang Chen
  • Publication number: 20060035477
    Abstract: Methods for rapid thermal processing of semiconductor substrates are provided. An exemplary method comprises directing radiant heat energy emitted from a heat source toward a backside surface of the semiconductor substrate. Systems for rapid thermal processing also are provided.
    Type: Application
    Filed: August 12, 2004
    Publication date: February 16, 2006
    Inventors: Karen Mai, Ming-Ho Yang, Tze Lee, Shih-Chang Chen, Chun-Feng Nieh
  • Publication number: 20050164445
    Abstract: A method for fabricating a portion of an integrated circuit on a semiconductor substrate. The method includes cleaning the surface of the substrate, and forming a thin insulate over the substrate. The method also includes depositing a high dielectric constant (high-k) material over the thin insulate, and then performing a hydrogen-based anneal on the high-k material. The method further includes performing an oxygen-based anneal on the high-k material, wherein the hydrogen-based and oxygen-based anneals occur sequentially.
    Type: Application
    Filed: January 23, 2004
    Publication date: July 28, 2005
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yu Lin, Ming-Fang Wang, Kun-Chih Lee, Ming-Ho Yang, Liang-Gi Yo, Shih-Chang Chen, Karen Mai