Patent ID: 9082784
Filing Date: 2015-07-14
Classification: H01L

Abstract:
1. A method of fabricating a semiconductor device, the method comprising: forming a first mold layer in a cell region and a peripheral region; forming first storage nodes penetrating the first mold layer in the cell region and a first contact penetrating the first mold layer in the peripheral region; forming a second mold layer on the first mold layer; forming second storage nodes that penetrate the second mold layer to be connected to respective ones of the first storage nodes; removing the second mold layer in the cell and peripheral regions and the first mold layer in the cell region to leave the first mold layer in the peripheral region; forming a blocking layer that covers the first mold layer and the first contact in the peripheral region and exposes the first mold layer and the first storage nodes in the cell region, prior to formation of the second mold layer; and forming a second contact that penetrates a first interlayer insulation layer to be connected to the first contact.