Patent ID: 11925026
Assignee: BESANG, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 35:
36. A 3D NVM module, comprising:
a conductive film divided into lines;
semiconductor pillars formed on said conductive film, arranged in an array, and forming bodies of vertical transistors;
a composite gate dielectric disposed on each of said semiconductor pillars;
a control gate disposed on said composite gate dielectric and surrounding a middle portion of each of said semiconductor pillars;
word lines disposed over said vertical transistors;
bit lines disposed over said vertical transistors;
and wherein:
said array has a bit-line direction and a word-line direction, perpendicular to each other;
said word lines are coupled to said control gate of said vertical transistors which are respectively arranged along said word-line direction;
said bit lines are coupled to top region of said semiconductor pillars which are respectively arranged along said bit-line direction;
a spacing between said semiconductor pillars along said word-line direction is smaller than a spacing between said semiconductor pillars along said bit-line direction;
said lines of said conductive film are sufficiently narrow in said word-line direction such that each of said lines of said conductive film can accommodate only one of said vertical transistors in said word-line direction; and
said lines of said conductive film provide common nodes for respective groups of said vertical transistors which are arranged along said bit-line direction.