A NAND non-volatile two-bit memory cell comprises a cell stack and two
select stacks disposed on an active area of a substrate. Each select
stack is respectively disposed on a side of the cell stack with a
sidewall between the cell stack and a respective select stack. The cell
stack has four components: a first dielectric layer disposed over the
substrate; a charge accumulation layer capable of holding charge in a
portion thereof to store information and disposed over the first
dielectric layer; a second dielectric layer disposed over the charge
accumulation layer; and a control gate disposed over the second
dielectric layer. The select stack has two components: a third dielectric
layer disposed over the substrate and a select gate, capable of inverting
an underneath channel region to function as a source or a drain of the
memory cell, disposed over the third dielectric layer.