Patent ID: 8093640

Claim:
A stacked capacitor comprising: a bottom polysilicon plate residing on a field oxide region layer, the bottom polysilicon plate being part of a first polysilicon layer and being electronically floating; an ONO layer covering the bottom polysilicon plate; a second polysilicon layer including a first top polysilicon plate and a second top polysilicon plate, the ONO layer residing between first top polysilicon plate and the bottom polysilicon plate and between the second top polysilicon plate and the bottom polysilicon plate, the first top polysilicon plate being physically separate from the second top polysilicon plate and electrically connected to the second top polysilicon plate through the bottom polysilicon plate such that the first top polysilicon plate and the second top polysilicon plate form top plates of capacitors connected in series through the bottom polysilicon plate; a first contact on the first top polysilicon plate; and a second contact on the second top polysilicon plate.