Patent ID: 8934283
Filing Date: 2015-01-13
Classification: H01L

Abstract:
1. A semiconductor memory device, comprising: a variable resistance element of a variable resistance type memory having a cylinder type NUM (Metal-Insulator-Metal) structure with a first depth; a capacitance element of a DRAM (Dynamic Random Access Memory) having a cylinder type MIM structure with a second depth deeper than the first depth; and wherein the variable resistance element comprises a first lower electrode, a variable resistance layer provided over the first lower electrode, and a first upper electrode provided over the variable resistance layer, wherein the capacitance element comprises a second lower electrode, a capacitance insulating film provided over the second lower electrode, and a second upper electrode provided over the capacitance insulating film, and wherein an end portion of the first upper electrode and an end portion of the second upper electrode are provided in one plane.