Patents Assigned to Nantronics Semiconductor, Inc.
  • Patent number: 7515478
    Abstract: The present invention is to provide a logic based single-poly non-volatile memory cell which is compatible with the CMOS process, uses lower voltages for operating, and is more reliable in program, read, or erase operation. A non-volatile memory cell in accordance with the present invention comprises a program transistor with a program transistor source as a first program terminal; a select transistor with a select transistor gate as a select terminal and a select transistor drain as a second program terminal; and an erase transistor with an erase transistor source and an erase transistor drain connected as an erase terminal, wherein the erase transistor shares a floating gate with the program transistor and the drain program transistor is connected to the select transistor source. By employing the present invention, significant cost advantages in feature-rich semiconductor products, such as System-on-Chip (SoC) design, compared to conventional dual-poly floating gate embedded Flash memory are provided.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: April 7, 2009
    Assignee: Nantronics Semiconductor, Inc.
    Inventors: Daniel D. Li, Steve X. Zhou