A memory cell and a method of fabricating the memory cell having a small active area. By forming a spacer in a window that is sized at the photolithographic limit, a pore may be formed in dielectric layer which is smaller than the photolithographic limit. Electrode material is deposited into the pore, and a layer of structure changing material, such as chalcogenide, is deposited onto the lower electrode, thus creating a memory element having an extremely small and reproducible active area.
A programmable resistance memory element using a conductive sidewall layer as the bottom electrode. The programmable resistance memory material deposited over the top edge of the bottom electrode, in a slot-like opening of a dielectric material. A method of making the opening.
A programmable resistance memory element using a conductive sidewall layer as the bottom electrode. The programmable resistance memory material deposited over the top edge of the bottom electrode, in a slot-like opening of a dielectric material. A method of making the opening.
A phase-change memory may be formed with at least two phase-change material layers separated by a barrier layer. The use of more than one phase-change layer enables a reduction in the programming volume while still providing adequate thermal insulation.
Phase changeable memory devices include an integrated circuit substrate and first and second storage active regions on the integrated circuit substrate. The first and second storage active regions have a first width and a second width, respectively. A transistor active region on the integrated circuit substrate is between the first and second active regions, the first and seconds widths being less than a width of the transistor active region.
A method for making a small pore. The defined pore is useful for the fabrication of programmable resistance memory elements. The programmable resistance memory material may be a chalcogenide.
