A dual-mode built-in self-test technique for capacitive MEMS devices
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AbstractA dual-mode built-in self-test (BIST) scheme which partitions the fixed (instead of movable) capacitance plates of a capacitive microelectromechanical system (MEMS) device is proposed. The BIST technique divides the fixed capacitance plate(s) at each side of the movable microstructure into three portions: one for electrostatic activation and the other two equal portions for capacitance sensing. Due to such a partitioning method, the BIST technique can be applied to surface- and bulk-micromachined MEMS devices and other technologies. Further, the sensitivity and symmetry dual BIST modes based on this partitioning coin also be developed. The combination of both BIST modes covers a larger defect set, so a more robust testing result for the device can be expected. The BIST technique is verified by three typical capacitive MEMS devices. Simulation results show that the proposed technique is an effective BIST solution for various capacitive MEMS devices.
All Author(s) ListXiong XG, Wu YL, Jone WB
Journal nameIEEE Transactions on Instrumentation and Measurement
Volume Number54
Issue Number5
Pages1739 - 1750
LanguagesEnglish-United Kingdom
Keywordsbuilt-in self-test (BIST); capacitive microelectromechanical system (MEMS); MEMS testing; sensitivity test; symmetry test
Web of Science Subject CategoriesEngineering; Engineering, Electrical & Electronic; ENGINEERING, ELECTRICAL & ELECTRONIC; Instruments & Instrumentation; INSTRUMENTS & INSTRUMENTATION

Last updated on 2020-15-09 at 02:48