A SHOCK-TRACKING ALGORITHM FOR SURFACE EVOLUTION UNDER REACTIVE-ION ETCHING

被引:58
作者
HAMAGUCHI, S [1 ]
DALVIE, M [1 ]
FAROUKI, RT [1 ]
SETHURAMAN, S [1 ]
机构
[1] NYU,COURANT INST MATH SCI,NEW YORK,NY 10012
关键词
D O I
10.1063/1.354282
中图分类号
O59 [应用物理学];
学科分类号
摘要
A new algorithm that determines the evolution of a surface eroding under reactive-ion etching is presented. The surface motion is governed by both the Hamilton-Jacobi equation and the entropy condition for a given etch rate. The trajectories of ''shocks'' and ''rarefaction waves'' are then directly tracked, and thus this method may be regarded as a generalization of the method of characteristics. This allows slope discontinuities to be accurately calculated without artificial diffusion. The algorithm is compared with ''geometric'' surface evolution methods, such as the line-segment method.
引用
收藏
页码:5172 / 5184
页数:13
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