发明名称 Method of forming a capacitor and an electrical connection thereto
摘要 The invention comprises integrated circuitry fabrication methods of making a conductive electrical connection, methods of forming a capacitor and an electrical connection thereto, methods of forming DRAM circuitry, integrated circuitry, and DRAM integrated circuitry. In one implementation, an integrated circuitry fabrication method of making a conductive electrical connection includes forming a conductive layer including a conductive metal oxide over a substrate. The conductive layer has an outer surface. At least a portion of the conductive layer outer surface is exposed to reducing conditions effective to reduce at least an outermost portion of the metal oxide of the conductive layer, most preferably by removing oxygen. Conductive material is formed over the reduced outermost portion and in electrical connection therewith. In one implementation, integrated circuitry includes a conductive metal oxide comprising layer received over a substrate. The conductive metal oxide comprising layer has at least one localized region. At least an outermost portion of the localized region has less oxygen content than a region of the conductive metal oxide comprising layer immediately laterally adjacent the at least one localized region. Other aspects and implementations are disclosed or contemplated.
申请公布号 US6458651(B2) 申请公布日期 2002.10.01
申请号 US20010921515 申请日期 2001.08.01
申请人 MICRON TECHNOLOGY, INC. 发明人 RHODES HOWARD E.
分类号 H01L21/02;H01L21/768;H01L21/8242;H01L23/485;(IPC1-7):H01L21/824 主分类号 H01L21/02
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