发明名称 Array of capacitors with electrically insulative rings
摘要 The invention includes methods and integrated circuitry. Pillars project outwardly from openings in a first material over individual capacitor storage node locations. Insulative material is deposited over the first material laterally about sidewalls of the projecting pillars, and is anisotropically etched effective to expose underlying first material and leave electrically insulative material received laterally about the sidewalls of the projecting pillars. Openings are formed within a second material to the pillars. The pillars are etched from the substrate through the openings in the second material, and individual capacitor electrodes are formed within the openings in electrical connection with the storage node locations. The individual capacitor electrodes have the anisotropically etched insulative material received laterally about their outer sidewalls. The individual capacitor electrodes are incorporated into a plurality of capacitors. Other implementations and aspects are contemplated.
申请公布号 US7825451(B2) 申请公布日期 2010.11.02
申请号 US20070787079 申请日期 2007.04.12
申请人 MICRON TECHNOLOGY, INC. 发明人 MANNING H. MONTGOMERY
分类号 H01L29/76 主分类号 H01L29/76
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