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Cellular automata for device simulation-concepts and applications

机译:用于设备仿真和应用的蜂窝自动机

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We present a discussion of various concepts of cellular automata for semiconductor transport in the context of device simulation. A newly developed transformation for the kinetic terms of the Boltzmann equation into deterministic transition rules are found to be superior to probabilistic rules, allowing a complete suppression of statistical errors without any loss in numerical performance. To take advantage of the high speed of the resulting Cellular Automaton, a fast and flexible multigrid-solver for the Poisson equation has been developed. This enables us to study also fluctuations of transport quantities, which determine the high frequency noise behavior of MOSFETs, within the Cellular Automata approach. The reliability of the new CA approach for nanostructured devices is demonstrated by a study of gate length influence onto the drain current characteristics of a novel vertically grown MOSFET.
机译:我们在设备模拟的背景下展示了用于半导体传输的各种概念的蜂窝自动机。 发现将Boltzmann方程的动力学术语的动力学转换变为确定性转换规则,以优于概率规则,允许完全抑制统计误差而没有数值性能的任何损失。 为了利用所得蜂窝自动机的高速,已经开发出用于泊松方程的快速和柔性的多重求解器。 这使我们还可以在蜂窝自动机器方法中研究了确定MOSFET的高频噪声行为的运输量的波动。 通过对栅极长度的影响对新颖的垂直生长MOSFET的漏极电流特性进行了研究,证明了纳米结构装置的新CA接近的可靠性。

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