AUTHOR=Bhaswara Adhitya , Keum Hohyun , Mathieu Fabrice , Legrand Bernard , Kim Seok , Nicu Liviu , Leïchlé Thierry 

TITLE=A Simple Fabrication Process Based on Micro-masonry for the Realization of Nanoplate Resonators with Integrated Actuation and Detection Schemes

JOURNAL=Frontiers in Mechanical Engineering

VOLUME=Volume 2 - 2016

YEAR=2016

URL=https://www.frontiersin.org/journals/mechanical-engineering/articles/10.3389/fmech.2016.00001

DOI=10.3389/fmech.2016.00001

ISSN=2297-3079

ABSTRACT=In this work, we use the micro-masonry technique to fabricate nanoplate resonators with integrated electrostatic actuation and capacitive detection in a few steps. Our approach is an alternative solution to the current fabrication methods used to create membranes and plates that usually rely on the selective etching of a sacrificial layer. Highly doped silicon plates were transfer-printed using microtip elastomeric stamps onto insulated bases displaying cavities in order to form suspended structures with airtight gaps. By post-processing adequate interconnections, the fabricated resonators were actuated and their resonant frequency measured in a fully integrated manner. The tested nanoplate devices behave as predicted by theory and offer quality factors of more than 30 in air. Because the cavities used for electrostatic actuation/sensing of the devices are tight sealed, nanoplates fabricated via micro-masonry are suitable for liquid environment operation and are thus a promising solution for biosensing applications.