Feature-Scale Simulations of Particulate Slurry Flows in Chemical Mechanical Polishing by Smoothed Particle Hydrodynamics
Feature-Scale Simulations of Particulate Slurry Flows in Chemical Mechanical Polishing by Smoothed Particle Hydrodynamics
复制标题
通过平滑粒子流体动力学对化学机械抛光中的颗粒浆料流进行特征尺度模拟
DOI:
10.4208/cicp.261213.030614a
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发表时间:
2014-11
影响因子:
3.7
通讯作者:
Zeng, Xuan
中科院分区:
文献类型:
--
作者:
Shao, Sihong;Yan, Changhao;Cai, Wei;Zeng, Xuan
In this paper, the mechanisms of material removal in chemical mechanical polishing (CMP) processes are investigated in detail by the smoothed particle hydrodynamics (SPH) method. The feature-scale behaviours of slurry flow, rough pad, wafer defects, moving solid boundaries, slurry-abrasive interactions, and abrasive collisions are modelled and simulated. Compared with previous work on CMP simulations, our simulations incorporate more realistic physical aspects of the CMP process, especially the effect of abrasive concentration in the slurry flows. The preliminary results on slurry flow in CMP provide microscopic insights on the experimental data of the relation between the removal rate and abrasive concentration and demonstrate that SPH is a suitable method for the research of CMP processes.
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