期刊
MICROELECTRONICS RELIABILITY
卷 79, 期 -, 页码 104-110出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.microrel.2017.10.010
关键词
MEMS; Stress; FEM simulation; Micro-Raman spectroscopy
资金
- Deutsche Forschungsgemeinschaft (German Research Foundation), DFG [FOR1713]
- Cluster of Excellence Advanced Electronics Dresden (cfaed) [EXC 1056]
The development cycle of microelectromechanical systems (MEMS) includes several numerical simulation and optimization iterations. To verify and calibrate the models with experimental data, the non-destructive measurement and imaging of stress distribution in structural challenging regions with high sensitivity is of great importance. This is possible to achieve using micro-Raman spectroscopy. Due to limitations of commercially available software regarding flexibility and sensitivity, the authors developed an alternative approach which ensures that the quality of spectra is taken into account in the evaluating calculations. In this way a remarkable stress resolution below 20 MPa becomes possible even on structural challenging MEMS devices.
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