Patent ID: 8580648
Filing Date: 2013-11-12
Classification: H01G,H01L,Y10T

Abstract:
1. A method of manufacturing a capacitor, comprising: forming an insulation layer on a substrate; forming a first conductive pattern including metal buried in the insulation layer; forming a second conductive pattern including metal oxide generated from the first conductive pattern; forming a third conductive pattern on the second conductive pattern; forming a dielectric layer on the second and the third conductive patterns; and forming an upper electrode on the dielectric layer; forming a first sacrificial layer on the insulation layer before forming the second conductive pattern; forming a second sacrificial layer on the first sacrificial layer to cover the second conductive pattern; forming an opening by etching the second sacrificial layer, the opening exposing the second conductive pattern; and forming a third conductive pattern on the second conductive pattern and a sidewall of the opening.