Patent ID: 8861179

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: an optional first Al 2 O 3 -comprising material outward of the inner electrode, the optional first Al 2 O 3 -comprising material having a thickness of from 0 Angstroms to 10 Angstroms; a first material outward of the inner electrode and outward of the optional first Al 2 O 3 -comprising material if the optional first Al 2 O 3 -comprising material is present, the first material comprising at least one of ZrO 2 or HfO 2 , the first material having a thickness of from 20 Angstroms to 50 Angstroms; an optional second Al 2 O 3 -comprising material outward of the first material comprising at least one of ZrO 2 or HfO 2 , the optional second Al 2 O 3 -comprising material having a thickness of from 0 Angstroms to 16 Angstroms; a TiO 2 -comprising material outward of the first material that comprises the at least one of ZrO 2 or HfO 2 and outward of the optional second Al 2 O 3 -comprising material if the optional second Al 2 O 3 -comprising material is present, the TiO 2 -comprising material having a thickness of from 40 Angstroms to 80 Angstroms; a second material outward of the TiO 2 -comprising material, the second material comprising at least one of ZrO 2 or HfO 2 , the second material having a thickness of from 10 Angstroms to 40 Angstroms, a sum of the thicknesses of the first material and the second material totaling no more than 70 Angstroms; an optional third Al 2 O 3 -comprising material outward of the second material comprising at least one of ZrO 2 or HfO 2 , the optional third Al 2 O 3 -comprising material having a thickness of from 0 Angstroms to 10 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; and the capacitor dielectric region comprising the optional third Al 2 O 3 -comprising material, the capacitor dielectric region being void of each of the optional first and second Al 2 O 3 -comprising materials.