Patent ID: 6348718
Filing Date: 2002-02-19
Classification: H01L

Abstract:
Integrated CMOS circuit for the use at high frequencies, with active CMOS components and with passive components, wherein the active CMOS components (12) are formed in a semiconductor substrate (10) which has a specific resistivity, wherein a conducting layer (22) is buried in and surrounded by the semiconductor substrate (10) under the active CMOS components (12), which has a specific resistivity of around three times the order of magnitude lower than the resistivity of the semiconductor substrate (10), wherein the passive components (16, 18, 20) are attached to a layer (14) of insulating material arranged on the semiconductor substrate (10), and wherein a conducting contact layer (24) is formed on the surface of the semiconductor substrate (10) facing away from the layer (14) made of an insulating material.