发明名称 SRAM cell arrangement and method for manufacturing same
摘要 The SRAM cell arrangement comprises six MOS transistors per memory cell that are fashioned as vertical transistors. The MOS transistors are arranged at sidewalls of trenches (G1, G2, G4). Parts of the memory cell such as, for example, gate electrodes (Ga2, Ga4) or conductive structures (L3) fashioned as spacer are contacted via adjacent, horizontal, conductive structures (H5) arranged above a surface (O) of a substrate (S). Connections between parts of memory cells ensue via third conductive structures (L3) arranged at the sidewalls of the depressions and word lines (W) via diffusion regions (D2) that are adjacent to the sidewalls of the depressions within the substrate (S), via first bit lines, via second bit lines (B2) or/and via conductive structures (L1, L2, L6) that are partially arranged at different height with respect to an axis perpendicular to the surface (O). Contacts (K5) contact a plurality of parts of the MOS transistors simultaneously.
申请公布号 US6309930(B1) 申请公布日期 2001.10.30
申请号 US20000708636 申请日期 2000.11.09
申请人 SIEMENS AKTIENGESELLSCHAFT 发明人 GOEBEL BERND;BERTAGNOLLI EMMERICH;WILLER JOSEF;HASLER BARBARA;VON BASSE PAUL-WERNER
分类号 H01L21/8244;H01L27/11;(IPC1-7):H01L21/336 主分类号 H01L21/8244
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