Patent ID: 8674427
Filing Date: 2014-03-18
Classification: H01L

Abstract:
1. A method of manufacturing a nonvolatile memory device, the method comprising: forming a floating gate on a substrate; forming a dielectric layer to conform to a shape of the floating gate; forming a conductive layer to form a control gate on the substrate, the control gate covering the floating gate and the dielectric layer; forming a photoresist pattern on one side of the conductive layer; forming the control gate in the form of a spacer to surround sides of the floating gate, the forming of the control gate comprising performing an etch-back on the conductive layer until a portion of the dielectric layer on the floating gate is exposed; and forming a poly pad, to which a plurality of contact plugs are connected, on one side of the control gate, the forming of the poly pad comprising removing the photoresist pattern.