发明名称 Semiconductor processing methods of forming capacitor constructions and semiconductor processing methods of forming DRAM constructions
摘要 A semiconductor processing method of forming a capacitor construction includes, a) providing a pair of electrically conductive lines having respective electrically insulated outermost surfaces; b) providing a pair of sidewall spacers laterally outward of each of the pair of conductive lines; c) etching material over the pair of conductive lines between the respective pairs of sidewall spacers selectively relative to the sidewall spacers to form respective recesses over the pair of conductive lines relative to the sidewall spacers, the etching leaving the outermost conductive line surfaces electrically insulated; d) providing a node to which electrical connection to a capacitor is to be made between the pair of conductive lines, one sidewall spacer of each pair of sidewall spacers being closer to the node than the other sidewall spacer of each pair; e) providing an electrically conductive first capacitor plate layer over the node, the one sidewall spacers, and within the respective recesses; and f) providing a capacitor dielectric layer and a second capacitor plate layer over the first capacitor plate layer. In another aspect, a semiconductor processing method of processing relative to a conductive line includes, i) providing a pair of sidewall spacers laterally outward of an electrically conductive line; and ii) etching material over the conductive line between the sidewall spacers selectively relative to the sidewall spacers to form a recess over the conductive line relative to the sidewall spacers. Capacitor and conductive line constructions produced according to the above and other methods are also disclosed.
申请公布号 US6187621(B1) 申请公布日期 2001.02.13
申请号 US20000580326 申请日期 2000.05.26
申请人 MICRON TECHNOLOGY, INC. 发明人 GREEN JAMES E.;CLAMPITT DARWIN
分类号 H01L21/8242;(IPC1-7):H01L21/823 主分类号 H01L21/8242
代理机构 代理人
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