Patents by Inventor Kuo-Lung Li

Kuo-Lung Li 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: 9129852
    Abstract: A method for fabricating a non-volatile memory semiconductor device is disclosed. The method includes the steps of providing a substrate; forming a gate pattern on the substrate, wherein the gate pattern comprises a first polysilicon layer on the substrate, an oxide-nitride-oxide (ONO) stack on the first polysilicon layer, and a second polysilicon layer on the ONO stack; forming an oxide layer on the top surface and sidewall of the gate pattern; performing a first etching process to remove part of the oxide layer; and performing a second etching process to completely remove the remaining oxide layer.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: September 8, 2015
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Hsiang-Chen Lee, Shao-Nung Huang, Wei-Pin Huang, Kuo-Lung Li, Ling-Hsiu Chou, Ping-Chia Shih
  • Publication number: 20150179748
    Abstract: A method for fabricating a semiconductor device includes forming a patterned multi-layered dielectric film on a substrate; forming a patterned stack on the patterned multi-layered dielectric film so that an edge of the patterned multi-layered dielectric film is exposed from the patterned stack; forming a cover layer to cover a part of the substrate and expose the patterned stack and the exposed edge of the patterned multi-layered dielectric film; removing at least a part of the exposed edge of the patterned multi-layered dielectric film by using the cover layer and the patterned stack as an etching mask; and performing an ion implantation process by using the cover layer as an etching mask so as to form a doped region.
    Type: Application
    Filed: December 23, 2013
    Publication date: June 25, 2015
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Yu-Chun Chang, Ping-Chia Shih, Chi-Cheng Huang, Kuo-Lung Li, Kun-I Chou, Chung-Che Huang, Chia-Cheng Hsu, Mu-Jia Liu