Patent ID: 8936979
Filing Date: 2015-01-20
Classification: H01L

Abstract:
1. A method for fabricating a semiconductor device comprising: forming over a semiconductor surface a temporary gate structure including a gate and a cap; forming a spacer around the gate; removing the cap and a portion of the spacer to define an exposed surface of the gate; depositing a first insulator over the uniform liner; depositing a uniform liner on the exposed surface of the gate; removing a portion of the uniform liner overlying the gate and the gate to form a gate trench; planarizing the first insulator to the uniform liner before removing the portion of the uniform liner and the gate to form the gate trench; recessing the planarized first insulator; depositing a second insulator over the recessed first insulator; planarizing the second insulator to the uniform layer; and forming a replacement metal gate in the gate trench.