US Patent 9385246 Differential MOSCAP device

A differential MOS capacitor includes a first plurality of upper capacitor plates, a second plurality of upper capacitor plates, and a conductive plate. At least two of the second plurality of upper capacitor plates are spaced laterally from each other and are disposed laterally between at least two of the first plurality of upper capacitor plates. The conductive plate is configured to serve as a common bottom capacitor plate such that a first capacitor is formed by the first plurality of upper capacitor plates and the conductive plate and a second capacitor is formed by the second plurality of upper capacitor plates and the conductive plate.