发明名称 Method for fabricating a memory cell arrangement with a folded bit line arrangement and corresponding memory cell arrangement with a folded bit line arrangement
摘要 An integrated circuit includes a memory cell arrangement with a plurality of active regions along a first direction, a plurality of parallel buried word lines (BWL) along a second direction, a plurality of parallel bitlines along a third direction, and a plurality of storage capacitors. The BWLs run through the active regions. Two of the BWLs are spaced apart from one another and from isolation trenches running through a respective active region, the BWLs being insulated from a channel region by a gate dielectric. The bit lines run perpendicular to the second direction, wherein each bit line makes contact with the relevant source region of the associated active region. The first direction lies between the second and third directions. Storage capacitors are connected to associated drain regions in a respective active region.
申请公布号 US7772631(B2) 申请公布日期 2010.08.10
申请号 US20060493082 申请日期 2006.07.26
申请人 QIMONDA AG 发明人 SCHLOESSER TILL
分类号 H01L27/108 主分类号 H01L27/108
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