Patents by Inventor Hee Gee Lee

Hee Gee Lee 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).

  • Method of manufacturing flash memory device
    Patent number: 7358138
    Abstract: An embodiment of the present invention relates to a method of manufacturing a flash memory device.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: April 15, 2008
    Assignee: Hynix Semiconductor Inc.
    Inventor: Hee Gee Lee
  • METHOD OF MANUFACTURING FLASH MEMORY DEVICE
    Publication number: 20060237772
    Abstract: An embodiment of the present invention relates to a method of manufacturing a flash memory device.
    Type: Application
    Filed: April 21, 2006
    Publication date: October 26, 2006
    Applicant: Hynix Semiconductor, Inc.
    Inventor: Hee Gee Lee
  • Method of erasing a flash memory device
    Patent number: 6426897
    Abstract: A method of erasing a flash memory device performs erase operation by hot carrier injection method, by applying a ground potential to a source and applying the bias from a high voltage to a low voltage step by step, with a voltage of 5V being applied to a drain, wherein the bias of a floating gate in the flash memory device keeps 1.8 through 2V. being hot carrier injection condition and wherein the gate bias adjusts the bias applied according to the coupling ratio. Thus, it can reduce the erase time and allows the erase on a byte basis.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: July 30, 2002
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Sung Mun Jung, Hee Gee Lee, Soo Min Cho