MEMORY DEVICE HAVING CAPACITOR ENCAPSULATED BY MULTILAYER INCLUDING DUAL LAYER COMPOSED OF THE SAME MATERIAL AND MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A memory device having a capacitor encapsulated by a multilayer including a dual layer composed of the same material is provided to control deterioration of a dielectric layer of the capacitor, by using an encapsulation layer composed of a passivation layer and a blocking layer which are composed of the same material. CONSTITUTION: The capacitor has a lower electrode(34), an upper electrode(38) and the dielectric layer(36) interposed between the lower electrode and the upper electrode. A multilayered encapsulation layer includes the first blocking layer(48) and the first passivation layer(42) formed on the first blocking layer, surrounding the capacitor and composed of the same material.