Patent ID: 7417277
Filing Date: 2008-08-26
Classification: H01L

Abstract:
1. A semiconductor integrated circuit, comprising: a semiconductor substrate, a field effect transistor, and a capacitor; wherein the field effect transistor includes: a first impurity diffusion layer of a first conductive type provided in the semiconductor substrate and acting as a source/drain region, a first impurity-implanted region of a second conductive type provided in the semiconductor substrate and adjacent to the first impurity diffusion layer, and acting as a channel region, a gate insulating layer provided on the first impurity-implanted region in the semiconductor substrate, and a gate electrode provided on the gate insulating layer; and the capacitor includes: a second impurity diffusion layer of the first or the second conductive type provided in the semiconductor substrate, a second impurity-implanted region of the same conductive type as the second impurity diffusion layer, provided in the semiconductor substrate and adjacent to the second impurity diffusion layer, and acting as a lower electrode, a capacitance insulating layer provided on the second impurity-implanted region of the semiconductor substrate, and an upper electrode provided on the capacitance insulating layer.