Reduced Etch Lag and High Aspect Ratios by Deep Reactive Ion Etching (DRIE).
Reduced Etch Lag and High Aspect Ratios by Deep Reactive Ion Etching (DRIE).
复制标题
通过深度反应离子蚀刻(DRIE)减少蚀刻滞后和高纵横比。
DOI:
10.3390/mi12050542
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发表时间:
2021-05-10
期刊:
影响因子:
3.4
通讯作者:
Dual J
中科院分区:
文献类型:
--
作者:
Gerlt MS;Läubli NF;Manser M;Nelson BJ;Dual J
Deep reactive ion etching (DRIE) with the Bosch process is one of the key procedures used to manufacture micron-sized structures for MEMS and microfluidic applications in silicon and, hence, of increasing importance for miniaturisation in biomedical research. While guaranteeing high aspect ratio structures and providing high design flexibility, the etching procedure suffers from reactive ion etching lag and often relies on complex oxide masks to enable deep etching. The reactive ion etching lag, leading to reduced etch depths for features exceeding an aspect ratio of 1:1, typically causes a height difference of above 10% for structures with aspect ratios ranging from 2.5:1 to 10:1, and, therefore, can significantly influence subsequent device functionality. In this work, we introduce an optimised two-step Bosch process that reduces the etch lag to below 1.5%. Furthermore, we demonstrate an improved three-step Bosch process, allowing the fabrication of structures with width at depths up to while maintaining their stability.
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DOI:
10.1007/s00542-006-0211-2
发表时间:
2007-03-01
影响因子:
2.1
作者:
Chen, S. C.;Lin, Y. C.;Cheng, C. H.
通讯作者:
Cheng, C. H.
影响因子:
2.3
作者:
Laermer, F;Urban, A
通讯作者:
Urban, A
影响因子:
2.3
作者:
Parasuraman, Jayalakshmi;Summanwar, Anand;Bourouina, Tank
通讯作者:
Bourouina, Tank
影响因子:
1.4
作者:
Blaw, MA;Zijlstra, T;van der Drift, E
通讯作者:
van der Drift, E
影响因子:
2.9
作者:
Lai, S. L.;Johnson, D.;Westerman, R.
通讯作者:
Westerman, R.