Adjusting Capacitance of Capacitors without Affecting Die Area

摘要

According to one exemplary embodiment, a method for adjusting geometry of a capacitor includes fabricating a first composite capacitor residing in a first standard cell with a first set of process parameters. The method further includes using a second standard cell having substantially same dimensions as the first standard cell. The method further includes using a capacitance value from the first composite capacitor to adjust a geometry of a second composite capacitor residing in the second standard cell, wherein the second composite capacitor is fabricated with a second set of process parameters. The geometry of the second composite capacitor can be adjusted to cause the second composite capacitor to have a capacitance value substantially equal to the capacitance value from the first composite capacitor.