Manufacturing method of film capacitor

The general method of making film capacitors is to use aluminum and other metal foils as electrodes and plastic films to be overlapped and wound together. However, there is another manufacturing method for film capacitors, called Metallized Film. The method is to deposit a thin layer of metal on a plastic film by vacuum evaporation to serve as an electrode. In this way, the thickness of the electrode foil can be omitted, and the volume per unit capacity of the capacitor can be reduced. Therefore, the film capacitor is easier to be made into a small and large-capacity capacitor. For example, the common MKP capacitor is the name of the metalized polypropylene film capacitor (Metailized Polypropylene Film Capacitor), and the MKT is the name of the metalized Polypropylene Film Capacitor (Metailized Polyester).