Patent ID: 8546258

Claim:
A method of fabricating a metal contact, comprising: sequentially forming a first insulating layer and a first mask layer on a target layer in which a cell region and a peripheral region are defined; forming a first mask pattern by etching the first mask layer, the first mask pattern including a first opening formed in the cell region and a first hole formed in the peripheral region, the first opening having a rectangular shape which extends in a first direction and exposing the first insulating layer, the first hole exposing the first insulating layer; forming a first sacrificial pattern on the first mask pattern and the exposed first insulating layer of the cell region using a double patterning technology process, the first sacrificial pattern having a rectangular shape extending in a second direction perpendicular to the first direction; forming contact holes exposing the target layer by etching the first insulating layer using the first mask pattern and the first sacrificial pattern as an etch mask; and forming a metal contact by filling the contact holes with a metal material.