Patent ID: 8497182
Filing Date: 2013-07-30
Classification: H01L

Abstract:
1. A method for manufacturing a memory device comprising: forming an array of electrodes including rows and columns on a substrate including an array of access devices, at least some of the electrodes in the array comprising thin film plates of electrode material, the thin film plates respectively having lengths with respective proximal ends in electrical communication with corresponding access devices, and distal ends having contact surfaces with respective contact areas, so that the areas of the contact surfaces are determined by a thickness of the thin film plates at the contact surfaces and widths of the thin film plates at the contact surfaces; forming a plurality of self-aligned forms over corresponding columns in the array of electrodes, where forms corresponding to columns in the array of electrodes include trenches exposing the contact surfaces of the thin film plates of the electrodes in the corresponding columns; forming a layer of memory material in the forms in the plurality of self-aligned forms, extending into the forms and contacting the contact surfaces of the thin film plates of the electrodes in the corresponding columns; and forming a layer of top electrode material in the forms in contact with the layer of memory material.