Patent ID: 7838919

Claim:
A capacitor structure formed on a semiconductor substrate, comprising: a first electrode line formed in a first wiring layer and having a first electrode base and a first extension extending from the first electrode base; a second electrode line formed in the first wiring layer and having a second electrode base and a second extension extending from the second electrode base; a third electrode line formed in a second wiring layer different from the first wiring layer; a first electrode having a plurality of teeth protruding in a comb shape from the first electrode base of the first electrode line; and a second electrode having a plurality of teeth protruding in a comb shape from the second electrode base of the second electrode line, wherein the first and second electrodes face each other with their teeth interdigitated with each other via a dielectric, all of the plurality of teeth of the first electrode protrude from the first electrode base, and all of the plurality of teeth of the second electrode protrude from the second electrode base, at least one of the plurality of teeth of the first electrode is electrically connected to the third electrode line, and the third electrode line extends across at least one of the plurality of teeth of the second electrode in a plan view.