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Abstract

There are provided metal-insulator-metal (MIM) capacitors and methods of forming the same. The capacitors and the formation methods thereof provide a way of simplifying semiconductor fabrication processes, using component elements of the capacitor and insulating layers around the capacitor. To this end, lower and upper electrodes are sequentially stacked on a semiconductor substrate. A dielectric layer pattern is interposed between the upper and lower electrodes. An etch stop layer pattern and an etch buffer layer are disposed on the upper electrode and under the lower electrode, respectively. The upper and lower electrodes are disposed to expose the dielectric layer pattern and the etch buffer layer.

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First Claim