Patent ID: 6661639
Filing Date: 2003-12-09
Classification: H01G,Y02E

Abstract:
A capacitor comprising:an essentially monolithic structure comprising at least one composite portion sintered with a ceramic dielectric portion, a buried metallization in the dielectric portion and at least one conductive metal-filled via extending from the buried metallization to the composite portion, wherein the composite portion includes a ceramic and a conductive metal, the capacitor further characterized by a feature selected from the group consisting of: (a) the composite portion comprises the conductive metal in an amount sufficient to render the composite portion conductive, wherein the composite portion provides an electrical lead for attaching the capacitor to a metallic surface trace on a printed circuit board; and (b) a metallization area partially between the composite portion and the ceramic dielectric portion, and a conductive metal coating on faces of the composite portion not sintered to the ceramic dielectric portion, whereby the conductive metal coating provides an electrical lead for attaching the capacitor to a metallic surface trace on a printed circuit board.