The microelectromechanical systems (MEMS) area has been developed extensively during the past three decades. In the 1970s, with the advancement of semiconductor microelectronics processing, researchers investigated wet anisotropic chemical etching processes for forming three dimensional silicon geometries. In the 1980s, researchers adopted the Metal-Oxide-Semiconductor (MOS) process to realize ...

Precision of nano-metric operations is an important issue in nano-engineering studies. Several operative parameters might affect the quality of results. The parameters of the nano world are significant but not entirely controllable. However, the geometrical and mechanical properties of micro cantilevers are completely controllable. So, controlling the sensitivity of resulting image through t la...

This paper presents the design and analysis of a novel 2.4 GHz Voltage Controlled Oscillator (VCO), with amplitude control and Q enhancement circuit, for wireless communication applications. The variable capacitors and the inductors were designed using ANSYS and imported through DAC components in ADS (Advanced Design software). Accurate simulation of the VCO was performed in the software enviro...

Due to their physical properties, nanomechanical sensors (NEMS) can achieve mass measurements in the mega- gigadalton range, which is hardly obtained with conventional mass-spectrometers. However, NEMS signals are subject noise, causing a loss of resolution and thus emphasizing need noise control. We propose denoising model that relies on total variation formulation, deals different models (par...

This article investigates the size dependent on piezoelectrically layered perforated nanobeams embedded in an elastic foundation considering material Poisson’s ratio and flexoelectricity effects. The composite beam is composed of a regularly squared cut-out core with two piezoelectric face sheet layers. An analytical geometrical model adopted to obtain equivalent variables core. To capture effe...