Patent attributes
A capacitor is provided, which allows a user to readily change or adjust its capacitance value. The capacitor includes a dielectric film, which includes first and second conductor layers disposed on opposite surfaces thereof, and which is wound into a rod shape. First and second electrodes are led out from the first and second conductor layers, respectively. At least one of the first and second conductor layers includes an area-changeable conductor pattern, which is disposed (e.g., exposed) on an outer circumference side of the capacitor wound into the rod shape to receive physical treatment (e.g., cutting, connecting) from outside to thereby change the size of a conductor area of the at least one of the first and second conductor layers. Thus, the physical treatment changes the conductor area of the conductor layers, to thereby selectively set or adjust the capacitance value of the capacitor.