Non-volatile memory array
First Claim
1. A non-volatile memory comprising:
- N×
M non-volatile memory devices disposed in an array having N rows and M columns, each non-volatile memory device further comprising;
a substrate region;
a source region formed in the substrate region;
a drain region formed in the substrate region and separated from the source region by a channel region;
a first gate overlaying a first portion of the channel and separated therefrom via a first insulating layer; and
a second gate overlaying a second portion of the channel and separated therefrom via a second insulating layer;
wherein said first portion of the channel and said second portion of the channel do not overlap, wherein each row of the array has a first associated terminal coupled to the first gates of the non-volatile devices disposed in that row, and a second associated terminal coupled to the second gates of the non-volatile devices disposed in that row, wherein each column of the array has a first associated terminal coupled to the drain regions of the non-volatile devices disposed in that column, and a second associated terminal coupled to the source regions of the non-volatile devices disposed in that column.
1 Assignment
0 Petitions
Accused Products
Abstract
Each non-volatile memory cell of an array of includes a guiding gate extending along a first portion of the cell'"'"'s channel and a control gate extending along a second portion of the cell'"'"'s channel. The first and second portions of the channel do not overlap. The guiding gate, which overlays the substrate above the channel, is insulated from the substrate via an oxide layer. The control gate, which also overlays the substrate above the channel region, is insulated from the substrate via an oxide-nitride-oxide layer. Each row of the array has a first terminal coupled to the guiding gates, and a second terminal coupled to the control gates of the cells disposed in that row. Each column of the array has a first terminal coupled to the drain regions, and a second terminal coupled to the source regions of the cells disposed in that column.
67 Citations
16 Claims
-
1. A non-volatile memory comprising:
-
N×
M non-volatile memory devices disposed in an array having N rows and M columns, each non-volatile memory device further comprising;
a substrate region;
a source region formed in the substrate region;
a drain region formed in the substrate region and separated from the source region by a channel region;
a first gate overlaying a first portion of the channel and separated therefrom via a first insulating layer; and
a second gate overlaying a second portion of the channel and separated therefrom via a second insulating layer;
wherein said first portion of the channel and said second portion of the channel do not overlap,wherein each row of the array has a first associated terminal coupled to the first gates of the non-volatile devices disposed in that row, and a second associated terminal coupled to the second gates of the non-volatile devices disposed in that row, wherein each column of the array has a first associated terminal coupled to the drain regions of the non-volatile devices disposed in that column, and a second associated terminal coupled to the source regions of the non-volatile devices disposed in that column. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16)
-
-
15. The non-volatile memory of 6 wherein a channel connecting the source region to the drain region is formed in the substrate region of the non-volatile memory device being programmed.
Specification