Patent ID: 7136029

Claim:
A method comprising: forming a first plurality of conductive structures at a surface of a conductor, each of the first plurality of conductive structures comprising: a first post electrically coupled to and extending from the surface of the conductor; a first plate electrically coupled to the first post at a first distance from the surface of the conductor; and a second plate electrically coupled to the first post at a second distance from the surface of the conductor; and forming a second plurality of conductive structures at the surface of the conductor, each of the second plurality of conductive structures comprising: a second post electrically coupled to and extending from the surface of the conductor; a third plate electrically coupled to the second post at a third distance from the surface of the conductor, the third distance being between the first and second distances; wherein at least a portion of the third plate of one or more conductive structures of the second plurality of conductive structures overlaps a corresponding portion of at least one of the first or second plates of at least one adjacent conductive structure of the first plurality of conductive structures; wherein the first plate of a first conductive structure of the first plurality of conductive structures comprises one or more indentations at a first edge; wherein a second conductive structure of the second plurality of conductive structures comprises a fourth plate electrically coupled to the second post at the first distance from the surface of the conductor; and wherein the fourth plate comprises one or more protrusions at a second edge, the one or more protrusions substantially coextensive with the respective one or more indentations of the first plate of the first conductive structure.