Methods Used In Forming At Least A Portion Of At Least One Conductive Capacitor Electrode Of A Capacitor That Comprises A Pair Of Conductive Capacitor Electrodes Having A Capacitor Insulator There-Between And Methods Of Forming A Capacitor

A method of forming a capacitor that comprises a pair of conductive capacitor electrodes having a capacitor insulator there-between, comprising:

• forming a first conductive capacitor electrode;
• forming a capacitor insulator over the first conductive capacitor electrode;
• and
• forming a second conductive capacitor electrode over the capacitor insulator, comprising:
• forming an insulative first material consisting of an amorphous insulative metal oxide;
• and
• reducing the amorphous insulative metal oxide in a reducing-ambient to form a conductive second material from the insulative first material, said reducing in the reducing-ambient both:
• (a) removing oxygen from and changing the stoichiometry of the metal oxide;
• and
• (b) crystallizing the metal oxide into a crystalline state that is conductive.

A method of forming a capacitor that comprises a pair of conductive capacitor electrodes having a capacitor insulator there-between, comprising:

• forming a first conductive capacitor electrode, comprising:
• forming an insulative first material consisting of an amorphous insulative metal oxide;
• and
• reducing the amorphous insulative metal oxide in a reducing-ambient to form a conductive second material from the insulative first material, said reducing in the reducing-ambient both:
• (a) removing oxygen from and changing the stoichiometry of the metal oxide;
• and
• (b) crystallizing the metal oxide into a crystalline state that is conductive;
• forming a capacitor insulator over the first conductive capacitor electrode;
• and
• forming a second conductive capacitor electrode over the capacitor insulator.

A method of forming a capacitor that comprises a pair of conductive capacitor electrodes having a capacitor insulator there-between, comprising:

• forming a first conductive capacitor electrode, comprising:
• forming an insulative first material comprising an upwardly-open container shape, the insulative first material consisting of an amorphous insulative metal oxide;
• and
• reducing the amorphous insulative metal oxide in a reducing-ambient to form a conductive second material comprising an upwardly-open container shape from the insulative first material, said reducing in the reducing-ambient both:
• (a) removing oxygen from and changing the stoichiometry of the metal oxide;
• and
• (b) crystallizing the metal oxide into a crystalline state that is conductive;
• forming an oxidation-barrier material comprising an upwardly-open container shape within and directly against the container-shaped first conductive capacitor electrode;
• exposing the oxidation-barrier material to oxidizing conditions, the oxidation-barrier material during said exposing restricting oxidation of the conductive crystalline metal oxide;
• forming a capacitor insulator directly against the oxidation-barrier material;
• and
• forming a second conductive capacitor electrode directly against the capacitor insulator.