Patent ID: 6546607
Filing Date: 2003-04-15
Classification: H01G,Y10T

Abstract:
A method of making a high-voltage capacitor, comprising steps of:(a) grinding a crater in a first surface of a dielectric, the crater having a bottom and sidewall surfaces and sloped to form a smooth liftoff curve between the bottom and the sidewall surfaces; (b) depositing an electrically conductive paint on the bottom surface, the liftoff curve, and a portion of the sidewall surface to define an input electrode, the input electrode defining an upper electrode edge on the sidewall surface; (c) applying a first electrically conductive paint on a second surface of the dielectric opposite the first surface and spaced from said bottom surface to form an output electrode, the output electrode defining a sampling capacitor between the input electrode and the output electrode; (d) after said step (c), applying a second electrically conductive paint on the second surface of the dielectric to form a guard electrode, the guard electrode defining a guard capacitor between the input electrode and the guard electrode, the guard electrode completely encircling the output electrode; and (e) heating the dielectric to bake on the input electrode, the output electrode, and the guard electrode.