The Study of Reactive Ion Etching of Heavily Doped Polysilicon Based on HBr/O(2)/He Plasmas for Thermopile Devices.
The Study of Reactive Ion Etching of Heavily Doped Polysilicon Based on HBr/O(2)/He Plasmas for Thermopile Devices.
复制标题
基于HBr/O-2/He等离子体的热电堆器件重掺杂多晶硅反应离子刻蚀研究
DOI:
10.3390/ma13194278
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发表时间:
2020-09-25
期刊:
影响因子:
--
通讯作者:
Wang W
中科院分区:
文献类型:
--
作者:
Zhou N;Li J;Mao H;Liu H;Liu J;Gao J;Xiang J;Hu Y;Shi M;Ju J;Lei Y;Yang T;Li J;Wang W
Heavily doped polysilicon layers have been widely used in the fabrication of microelectromechanical systems (MEMS). However, the investigation of high selectivity, anisotropy, and excellent uniformity of heavily doped polysilicon etching is limited. In this work, reactive ion etching of undoped and heavily doped polysilicon-based hydrogen bromide (HBr) plasmas have been compared. The mechanism of etching of heavily doped polysilicon is studied in detail. The final results demonstrate that the anisotropy profile of heavily doped polysilicon can be obtained based on a HBr plasma process. An excellent uniformity of resistance of the thermocouples reached ± 2.11%. This technology provides an effective way for thermopile and other MEMS devices fabrication.
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影响因子:
3.2
作者:
Chang, KM;Yeh, TH;Lin, HC
通讯作者:
Lin, HC
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1.4
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Donnelly, VM
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2.2
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3.8
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3.2
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FLAMM, DL