Patents by Inventor Yong-Wan Yi

Yong-Wan Yi 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: 5455792
    Abstract: A flash electrically erasable programmable read only memory (EEPROM) device includes a two-dimensional array of single transistor non-volatile memory cells having the mid channel injection mechanism. The single transistor non-volatile memory cell includes a select gate, a control gate, and a floating gate which are disposed above a channel between a source and a drain. The control gate is located above the floating gate. In order to program the memory cell, the carrier injection into the floating gate is accomplished by the deflection of accelerated carriers from the middle region of the channel. Carriers are accelerated through the carrier acceleration passage by the horizontal component of the stray electric field, and deflected by the vertical component of the electric field. The erasure of memory cell is accomplished by the tunneling of carriers from the floating gate to the drain.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: October 3, 1995
    Inventor: Yong-Wan Yi