Patent · US Expired

Method of operating flash memory

US6347054B1 · kind B1 · utility

10Cited by
18References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 1, 2000
Grant dateFeb 12, 2002
Priority date
Expiry dateFeb 1, 2020

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10B69/00

Abstract

A method of erasing electrically a programmable memory cell which cell includes a transistor formed in a region of semiconductor material. The transistor has a source region, a drain region, a floating gate, and a control gate. The method includes lowering the control gate to a potential no more negative than 6.5 volts, disconnecting the source and drain regions from any potential source, and placing the region of semiconductor material at a potential no more positive than 8.0 volts.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.