Patent ID: 8310807

Claim:
A capacitor comprising: an inner conductive metal capacitor electrode and an outer conductive metal capacitor electrode; and a capacitor dielectric region received between the inner and the outer conductive metal capacitor electrodes and having a thickness no greater than 150 Angstroms, the capacitor dielectric region comprising: a first Al 2 O 3 -comprising material outward of the inner electrode, the first Al 2 O 3 -comprising material having a thickness of from 2 Angstroms to 10 Angstroms; a ZrO 2 -comprising material outward of the first Al 2 O 3 -comprising material, the ZrO 2 -comprising material having a thickness of from 30 Angstroms to 70 Angstroms; a second Al 2 O 3 -comprising material outward of the ZrO 2 -comprising material, the second Al 2 O 3 -comprising material having a thickness of from 2 Angstroms to 16 Angstroms; a TiO 2 -comprising material outward of the second Al 2 O 3 -comprising material, the TiO 2 -comprising material having a thickness of from 40 Angstroms to 80 Angstroms; and a sum of the thicknesses of the first Al 2 O 3 -comprising material, the ZrO 2 -comprising material, and the second Al 2 O 3 -comprising material totals no more than 70 Angstroms; the capacitor dielectric region having in combination a dielectric constant k of at least 35 and leakage current no greater than 1×10 −7 amps/cm 2 at from −1.1V to +1.1V.