Patent ID: 7557013

Claim:
A method of forming a plurality of capacitors, comprising: providing a substrate comprising a capacitor array area, a circuitry area other than the capacitor array area, and an intervening area between the capacitor array area and the circuitry area; an insulative material received over the capacitor array area and the circuitry area, the capacitor array area comprising a plurality of capacitor electrode openings within the insulative material received over individual capacitor storage node locations, the intervening area comprising a trench within the insulative material; forming conductive material within the capacitor electrode openings and against a sidewall portion of the trench to less than completely fill the trench; covering the conductive material received over the sidewall portion of the trench with a silicon nitride-comprising layer which less than fills remaining volume of the trench; etching the insulative material within the capacitor array area and the silicon nitride-comprising layer with a liquid etching solution effective to expose outer sidewall portions of the conductive material within the capacitor array area and to expose the conductive material within the trench; and incorporating the conductive material within the capacitor array area into a plurality of capacitors.