title: Metrology of electromagnetic static actuation of MEMS microbridge using atomic force microscopy.
abstract: The objective of this paper is to describe application of atomic force microscopy (AFM) for characterization and calibration of static deflection of electromagnetically and/or thermally actuated micro-electromechanical (MEMS) bridge. The investigated MEMS structure is formed by a silicon nitride bridge and a thin film metal path enabling electromagnetic and/or thermal deflection actuation. We present how static microbridge deflection can be measured using contact mode AFM technology with resolution of 0.05nm in the range of up to tens of nm. We also analyze, for very small structure deflections and under defined and controlled load force varied in the range up to ca. 32nN, properties of thermal and electromagnetical microbridge deflection actuation schemes.
authors.affiliation: Wrocław University of Technology, Wybrzeże Wyspiańskiego 27,Wrocław 50-370, Poland. Electronic address: Magdalena.moczala@pwr.edu.pl.
authors.forename: M
authors.initials: M
authors.lastname: Moczała
authors.affiliation: Wrocław University of Technology, Wybrzeże Wyspiańskiego 27,Wrocław 50-370, Poland.
authors.forename: W
authors.initials: W
authors.lastname: Majstrzyk
authors.affiliation: ITE Institute of Electron Technology, Al. Lotników 32/46, Warszawa 02-668, Poland.
authors.forename: A
authors.initials: A
authors.lastname: Sierakowski
authors.affiliation: ITE Institute of Electron Technology, Al. Lotników 32/46, Warszawa 02-668, Poland.
authors.forename: R
authors.initials: R
authors.lastname: Dobrowolski
authors.affiliation: ITE Institute of Electron Technology, Al. Lotników 32/46, Warszawa 02-668, Poland.
authors.forename: P
authors.initials: P
authors.lastname: Grabiec
authors.affiliation: Wrocław University of Technology, Wybrzeże Wyspiańskiego 27,Wrocław 50-370, Poland.
authors.forename: T
authors.initials: T
authors.lastname: Gotszalk
keywords: Atomic force microscopy (AFM); Electromagnetic actuation; Lorentz force; Microbridge; Thermal actuation