Compensation method for convex corners on (100) substrate in bulk silicon wet etching process

被引:0
|
作者
Zhang H. [1 ]
Li W. [1 ]
机构
[1] Key Laboratory of MEMS of Ministry of Education, Southeast University
关键词
(110) substrate; Convex corner compensation; General method; Topological field;
D O I
10.3969/j.issn.1001-0505.2010.04.017
中图分类号
学科分类号
摘要
Based on the research on (110) faced silicon substrate, a novel theoretical method which can generate perfect compensation patterns for regular convex corners is put forward. This method starts with the previous work on the basic truth of silicon atomic structure and the compensation method of (100) substrate. By refitting the intersection lines with the substrate of key related faces, such as (111), (311) and (110) in 70°C 30% KOH solution, a topological field is formed. The practical compensation patterns are transformed from the topological field within the restriction of detailed rules. This design method is verified by the computer simulation under two different modes. The simulation results are in accord with the design anticipation, which proves the validity of the method.
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页码:750 / 754
页数:4
相关论文
共 10 条
  • [1] Jovic V., Lamovec J., Popovic M., Investigation of silicon anisotropic etching in alkaline solutions with propanol addition, The 26th International Conference on Microelectronics, pp. 96-101, (2008)
  • [2] Fruhauf J., Shape and Functional Elements of the Bulk Silicon Microtechnique, (2005)
  • [3] Seidel H., The mechanism of anisotropic silicon etching and its relevance for micromachining, Tech Dig Transducers'87, pp. 120-125, (1987)
  • [4] Powell O., Harrison H., Anisotropic etching of (100) and (110) planes in (100) silicon, Journal of Micromechanics and Microengineering, 11, 3, pp. 424-428, (2001)
  • [5] Tanaka H., Yamashita S., Abe Y., Et al., Fast wet anisotropic etching of Si (100) and (110) with a smooth surface in ultra-high temperature KOH solutions, Transducers'2003, pp. 1675-1678, (2003)
  • [6] Pal P., Sato K., Chandra S., Fabrication techniques of convex corners in a (100)-silicon wafer using bulk micromachining: A review, J Micromech Microeng, 17, pp. 111-133, (2007)
  • [7] Guo T., Fan B., Convex corner compensation in anisotropy etching on silicon (100), Nanotechnology and Precision Engineering, 6, 1, pp. 68-71, (2008)
  • [8] (1996)
  • [9] Zhang H., Li W., A novel method for generating a rectangular convex corner compensation structure in an anisotropic etching process, Journal of Semiconductors, 30, 7, pp. 1-6, (2009)
  • [10] Zhang P., Huang Q., Simulation of anisotropic etching of silicon based on MATLAB, Journal of Semiconductors, 23, 9, pp. 440-444, (2002)