Patent ID: 8030691

Claim:
A semiconductor device comprising: a field effect transistor portion formed in an active area formed on a semiconductor substrate, and an MIM capacitor portion formed in a different area from the active area on the semiconductor substrate, wherein the field effect transistor portion includes a source electrode, a drain electrode separated from each other in the active area and a gate electrode formed between the electrodes, wherein the MIM capacitor portion includes a lower electrode formed on the semiconductor substrate, a dielectric layer formed on the lower electrode and an upper electrode formed on the dielectric layer, wherein the gate electrode of the field effect transistor portion and the lower electrode of the MIM capacitor portion are formed with substantially same electrode material, and wherein the gate electrode of the field effect transistor portion and the lower electrode of the MIM capacitor portion include an Au layer formed on the semiconductor substrate, a barrier metal layer laminated on the Au layer, and a Ti layer laminated on the barrier metal layer.