Thin Film Capacitors

A capacitor is a passive electronic component that is used to store electrical charge. It consists of two conductive plates separated by an insulating material called a dielectric. When a voltage is applied across the plates, the capacitor stores electrical energy in the form of an electrostatic field. Capacitors are commonly used in electronic circuits to smooth out fluctuations in the supply voltage, to filter out high-frequency noise, and to store and release electrical energy. Thin film capacitors are a type of capacitor that is constructed using thin layers of conductive and insulating materials deposited on a substrate, typically using a process called vacuum deposition. Because the layers of material are very thin, thin film capacitors are highly compact and can be incorporated into circuits in a small form factor. They also have good stability and low parasitics, making them well-suited for high-frequency applications. Thin film capacitors are commonly used in applications such as radio-frequency (RF) circuits, precision timing circuits, and high-frequency filtering.