Patent ID: 7687344

Claim:
A method of fabricating a capacitor in a semiconductor device, comprising: forming a storage node contact plug in a portion of an inter-layer insulation layer over a substrate; forming a first insulation layer over the inter-layer insulation layer and the storage node contact plug; etching the first insulation layer to form a first opening exposing a portion of the storage node contact plug and the inter-layer insulation layer having the storage node contact plug formed therein; filling the first opening with an organic polymer layer including contacting a bottom of the organic polymer layer with the storage node contact plug and the inter-layer insulation layer having the storage node contact plug formed therein; sequentially forming an etch stop layer and a second insulation layer over the organic polymer layer and the first insulation layer; forming a photoresist pattern on the second insulation layer using a mask; etching a portion of the second insulation layer and the etch stop layer to form a second opening exposing a portion of the organic polymer layer; simultaneously removing the photoresist pattern and the organic polymer including extending a portion of the second opening; and forming a storage node over the extended second opening and the second insulation layer.