A capacitor that is formed as part of a monolithic integrated circuit. It can be used as a blocking capacitor, a bypass capacitor, or a tuning capacitor as part of a filter or tuned circuit. The main types of monolithic capacitor are as follows: interdigitated capacitors (Fig. a), in which the capacitance is produced by capacitive coupling between adjacent conductors separated by the substrate dielectric material; MIM (metal-insulator-metal) capacitors (Fig. b), which are parallel plate capacitors and the most common type used; and Schottky diodes used as varactors in voltage-controlled oscillator circuits.

Monolithic capacitors