Patent ID: 8227846

Claim:
A decoupling capacitor structure comprising: a first well having a first dopant polarity and a first high-dose implant formed therein; a second well adjacent the first well and having a second dopant polarity opposite the first dopant polarity, the second well having a second high-dose implant formed therein; at least one insulating layer formed over the first high-dose implant and the second high-dose implant; a first set of well-ties formed in the first well; a second set of well ties formed in the second well; a first conductor formed over the first well adjacent the first high-dose implant; and a second conductor formed over the second well adjacent the second high-dose implant; wherein the first set of well-ties and the second conductor are commonly tied to a first electrical node, and the second set of well-ties and the first conductor are commonly tied to a second electrical node; and wherein at least one of the first set of well-ties, the second set of well-ties, and the high-dose implants are asymmetrical with respect to dopant polarity.