Patents by Inventor Ken-Ying LIAO

Ken-Ying LIAO 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).

  • Publication number: 20240395642
    Abstract: A semiconductor device includes a memory region including an array of memory cell devices, and a test region including a test memory cell structure. The test memory cell structure includes a first gate stack on a first raised portion of a substrate, a first polysilicon structure adjacent to the first raised portion and in a region between the first raised portion and a second raised portion of the substrate, a first spacer adjacent to the first polysilicon structure, and a second gate stack on the second raised portion, a second polysilicon structure adjacent to the second raised portion and in the region between the first raised portion and the second raised portion, and a second spacer adjacent to the second polysilicon structure. The semiconductor device includes an interlayer dielectric layer over at least a portion of the memory region and at least a portion of the test region.
    Type: Application
    Filed: July 31, 2024
    Publication date: November 28, 2024
    Inventors: Ken-Ying LIAO, Chih-Wei SUNG, Tzu-Pin LIN, Huai-jen TUNG, Po-Zen CHEN, Yen-Jou WU, Yung-Lung YANG
  • Publication number: 20230062401
    Abstract: A semiconductor device includes a memory region including an array of memory cell devices, and a test region including a test memory cell structure. The test memory cell structure includes a first gate stack on a first raised portion of a substrate, a first polysilicon structure adjacent to the first raised portion and in a region between the first raised portion and a second raised portion of the substrate, a first spacer adjacent to the first polysilicon structure, and a second gate stack on the second raised portion, a second polysilicon structure adjacent to the second raised portion and in the region between the first raised portion and the second raised portion, and a second spacer adjacent to the second polysilicon structure. The semiconductor device includes an interlayer dielectric layer over at least a portion of the memory region and at least a portion of the test region.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 2, 2023
    Inventors: Ken-Ying LIAO, Chih-Wei SUNG, Tzu-Pin LIN, Huai-jen TUNG, Po-Zen CHEN, Yen-Jou WU, Yung-Lung YANG