Electrical device comprising a capacitor for high voltage applications and method for manufacturing thereof

A method for manufacturing an electrical device comprising a capacitor, said method including:

• providing a bottom electrode comprising a conductive structure;
• forming a dielectric structure extending conformally on the bottom electrode and comprising one or more dielectric layers having vertical lateral edges, wherein the dielectric structure extends only within a central region of the bottom electrode;
• forming a top electrode extending conformally on the dielectric structure and comprising at least one conductive layer;
• and
• forming a passivation layer extending on and in contact with the bottom electrode within a peripheral region of the bottom electrode, the peripheral region of the bottom electrode and the passivation layer surrounding the dielectric structure, and
• wherein:
• the vertical lateral edges of each of said one or more dielectric layers of the dielectric structure are covered at least by the passivation layer.