Patent ID: 7736973

Claim:
A method of making a non-volatile memory using a semiconductor substrate, the method comprising: forming a first layer of dielectric material over a surface of the substrate; forming a first set of strips of conductive material elongated in a first direction over the surface of the substrate with the first layer of dielectric material therebetween and separated in a second direction with spaces therebetween, the first set of strips including sidewalls extending a first length above the first dielectric layer in a third direction substantially perpendicular to the surface of the substrate, the first direction being substantially perpendicular to the second direction and the third direction; forming in the spaces between the first set of strips of conductive material a first set of strips of dielectric material elongated in the first direction and extending in the third direction along the sidewalls of the first set of strips a second length above the first layer of dielectric material, the second length being substantially less than the first length such that a substantial portion of the sidewalls of the first set of strips of conductive material remain exposed; forming a second layer of dielectric material along the exposed portions of the sidewalls of the first set of strips of conductive material and over the first set of strips of dielectric material; and forming a second set of strips of conductive material elongated in the first direction and at least partially occupying the spaces between the first set of strips of conductive material in the second direction, the second set of strips being separated from the first set of strips of conductive material by the second layer of dielectric material and being separated from the surface of the substrate by the first layer of dielectric material, the first set of strips of dielectric material and the second layer of dielectric material.