Voltage variable capacitor

摘要

A structure of a radio frequency (RF) variable capacitor to increase a quality factor while using a CMOS process and a method of manufacturing the same. The structure of the RF variable capacitor having a variable range of capacitance between a first minimum value and a first maximum value includes a first capacitor, which has a variable range of capacitance between a second minimum value greater than the first minimum value and a second maximum value greater than the first maximum value, and a second capacitor, which is connected in series to the first capacitor and has capacitance of a fixed value. <IMAGE>