This paper describes a physics-of-failure (PoF) based prognostic method for power electronics modules (PEMs). Differing from the traditional reliability prediction methods, this approach allows the reliability performance of PEMs to be assessed in real time. Four techniques have been used to develop this method, they are: (1) Compact electro-thermal model (2) Rainflow counting algorithm (3) Com...

The defect in work rolls directly influence the forming cost and the final shape of the product. The researchers tend to investigate the thermo-mechanical stress in work roll of rolling machines. These stresses may reduce the roll life. Since the investigation of the thermo-mechanical stress in work roll with real-conditions is complex, comprehensive studies by means of numerical methods are av...

Conductometric gas sensors based on SMO films must be heated to temperatures up 550 °C in order initiate the molecular adsorption process at film's surface. Very often platinum is used as microheater material. The long-term reliability of these devices are primarily associated with mechanical stability micro-electro-mechanical systems (MEMS) structures hold suspended and thermally isolated from...

The electro-thermomechanical modeling study of the High Electron Mobility Transistor (HEMT) has been presented, all necessary equations are detailed and coupled. This proposed by finite element method using Comsol multiphysics software, allowed to behaviour transistor observe different degradations in structure component. Then, an optimization is avoid failures transistor. In this work, we have...

This paper investigates an uncommon technique by using the influence of random function (Weiner process function), on a two-temperature problem, at free surface semiconducting medium, photo-thermoelasticity theory. Using Silicon material as example medium under magnetic field, novel model can be formulated. To make problem more logical, randomness Weiner is aged to governing stochastic equation...

Ultra-compact silicon-photonic-crystal-waveguide-based thermo-optic and electro-optical Mach-Zehnder interferometers have been proposed and fabricated. Thermal and electrical simulations and optical characterizations have been performed. Experimental results were in good agreement with the theoretical predictions.

We present in this supplement to our manuscript entitled, “Static and Dynamic Wavelength Routing via the Gradient Optical Force,” the detailed analysis related to the cavity response in the pump-probe scheme, the anti-crossing of cavity modes, and the calibration of thermo-optic and thermo-mechanical contributions to the cavity resonance tuning.