Patent ID: 8528175
Filing Date: 2013-09-10
Classification: H01G,Y10T

Abstract:
1. A method of forming a capacitor, comprising: depositing different metal oxides over a lower capacitor electrode and incorporating the different metal oxides into a metal oxide mixture over the lower capacitor electrode; the different metal oxides being deposited in a ratio relative to one another, with such ratio forming the metal oxide mixture to comprise a continuous concentration gradient of a second component relative to a first component; the continuous concentration gradient comprising a decreasing concentration of the second component as a distance from the lower capacitor electrode increases; the first component being selected from the group consisting of zirconium oxide, hafnium oxide and mixtures thereof; the second component being selected from the group consisting of niobium oxide, titanium oxide, strontium oxide and mixtures thereof; and forming an upper capacitor electrode over the metal oxide mixture.