Modernmicroelectronic devices have nanoscale features that dissipate power nonuniformly, but fundamental physical limits frustrate efforts to detect the resulting temperature gradients. Contact thermometers disturb the temperature of a small system,while radiation thermometers struggle to beat the diffraction limit. Exploiting the same physics as Fahrenheit’s glass-bulb thermometer, we mapped t...

At cure temperatures below Tg the cure shrinkage contributes significantly to residual stress build-up. Residual stresses in a flip chip package The cure shrinkage model was implemented in FE code. In figures 2 and 3 the residual stress build-up for a 2D plane strain model of an adhesively bonded flip chip is shown. A schematic representation of the model is given in the inset of figure 3. For ...

Abstract This study presents a survey of the current issues, application areas, findings, and performance challenges in wireless body area networks (WBAN). The discusses selected areas WBAN signal processing, network reliability, spectrum management, security, integration with other technologies for highly efficient future healthcare applications. foundation bases on recent growing advances mic...

Silicon Photonics, the technology where optical devices are fabricated by mainstream microelectronic processing technology, was proposed almost 30 years ago. I joined this research field at its start. Initially, concentrated on main issue of lack a silicon laser. Room temperature visible emission from porous first, and nanocrystals then, showed that gain is possible in low-dimensional silicon, ...

The present status of a new epitaxial growth method, named molecular beam allotaxy (MBA), is reviewed. The method allows one to grow single-crystalline heterostructures in a new way; that is, the desired layer forms during annealing of a precipitate layer. The precipitates are embedded within a single-crystalline matrix, grown by molecular beam epitaxy. The key point is that the epitaxial growt...

metal—polyaniline nanocomposites such as platinum-polyaniline nanocomposite is prepared by insitu oxidative polymerization of aniline and reduction of pt+4 ions into pt nanoparticles. thepolymerization of aniline was carried out in the presence of 1(2ptcn6 [potassium hexa cyanoplatinate (iv)] as oxidizing agent. during the reaction aniline monomers undergo oxidation andform polyaniline (pant) w...