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DRAM TECHNOLOGY FOR 100NM AND BEYOND

机译:100NM及以后的DRAM技术

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摘要

The key challenges for scaling of DRAM cells are reviewed for trench capacitor cells and stacked capacitor cells. Both cell types have to implement significant innovations for 100nm and beyond. Cell layout/design have to be innovated for both cell types. New materials have to be introduced like high-k materials for capacitor, W/WN gates for gate resistance reduction and low-k materials for reduced parasitic capacitance. Transistor construction is another key element in scaling. Patterning, especially lithographic techniques, have to be significantly improved. This paper gives an overview on DRAM roadmap for both cell technologies. The viability of trench technology down to 70nm is demonstrated.
机译:对于沟槽电容器单元和堆叠电容器单元,对DRAM单元的缩放的关键挑战进行了综述。两种类型的电池都必须在100nm及以上工艺上实现重大创新。两种电池类型的电池布局/设计都必须创新。必须引入新材料,例如用于电容器的高k材料,用于降低栅极电阻的W / WN栅极和用于减小寄生电容的低k材料。晶体管构造是缩放的另一个关键要素。图案化,尤其是光刻技术,必须得到显着改善。本文概述了两种单元技术的DRAM路线图。演示了沟槽技术的可行性,该技术可低至70nm。

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