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davoud jahani

davoud jahani

Academic rank: Assistant Professor
ORCID:
Education: PhD.
ScopusId:
HIndex: 0/00
Faculty: Faculty of Engineering
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Phone: 04137745000

Research

Title
Static characterization of microstructures using AOMSI and temporal phase-shifting (TPS) methods
Type
JournalPaper
Keywords
Residual Stress Piezoelectric Material Power Supply System Static Characterization Device Under Test
Year
2012
Journal MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
DOI
Researchers davoud jahani ، Sivakumar Narayanswamy ، Muthukumaran Packirisamy ، Murali Manohohar Pai

Abstract

Temporal phase shifting interferometry is the most common method for characterization of surface, profile and displacement properties of micro devices. Common methods of phase shifting require piezoelectric material based devices that have inherent errors due to non-linearity. To avoid these errors during phase shifting, a new phase shifting technique is presented in this work. This technique utilizes the advantage of stroboscopic interferometry to create phase shifted images without requiring any additional component for phase shifting. The proposed method was used for surface profiling and static characterization of the microstructures. Static characterization was performed to identify the tip deflection and profile variation of the microcantilever in response to various DC voltages. A capacitor-based cantilever was tested under varied electrostatic loads and the deflection of the cantilever was extracted using the proposed method. The deflection of the cantilever was predicted using energy method. Static characterization results from the proposed technique were found to be in good agreement with the predicted results.