Patent ID: 8604586

Claim:
A semiconductor device, comprising: gate material embedded in an insulator; and first and second capacitors, each capacitor comprising: a lower electrode; a dielectric formed so as to cover the surface of the lower electrode; and an upper electrode formed on the dielectric, wherein the lower electrode, dielectric, and upper electrode are well-type structures, and wherein metal contacts couple the lower electrode of each of the first and second capacitors to a first gate material, and wherein the first and second capacitors are connected in series via the first gate material; third and fourth capacitors, each capacitor comprising: a lower electrode; a dielectric formed so as to cover the surface of the lower electrode; and an upper electrode formed on the dielectric and wherein metal contacts couple the lower electrode of each of the third and fourth capacitors to a second gate material, wherein the third and fourth capacitors are connected in series via a second gate material, and wherein the upper electrodes of the second capacitor and the fourth capacitor share a common metal portion, and wherein the common metal portion is electrically coupled to a first voltage terminal through a first metal plate; and wherein the upper electrodes of the first capacitor and the third capacitor are electrically coupled to a second voltage terminal through a second metal plate.