Patent ID: 6044018
Filing Date: 2000-03-28
Classification: G11C

Abstract:
A method of biasing a flash memory device, the method comprising:(a) applying a first voltage of a first polarity to a first source region and a first drain region, the first source region overlapping a first portion of a first gate structure, and the first drain region overlapping a second portion of the first gate structure, the first gate structure electrically floating and being directly electrically connected to a second gate structure;(b) applying a second voltage of a second polarity, the second polarity being opposite the first polarity, to a second source region overlapping a first portion of the second gate structure; and(c) electrically disconnecting a second drain region so that the second drain region electrically floats, the second drain region overlapping a second portion of the second gate structure,to transfer electronic charge to the second gate structure, the electronic charge being distributed between the second gate structure and the first gate structure and causing the first gate structure to become negatively charged.