Stacks consisting of titanium, platinum, and gold layers constitute a popular metallization system for the bond pads semiconductor chips. Wire bonding on such layer stacks at different temperatures has extensively been investigated in past. However, reliable information bondability this after high-temperature sintering process is still missing. When performing wire pressure (at, e.g., 875 °C), ...

Abstract Elemental tellurium is a small band-gap semiconductor, which always p-doped due to the natural occurrence of vacancies. Its chiral non-centrosymmetric structure, characterized by helical chains arranged in triangular lattice, and presence spin-polarized Fermi surface, render promising candidate for future applications. Here, we use theoretical framework, appropriate describing correcti...

We describe a patient with elemental mercury aspiration and retention in the appendix after elemental mercury ingestion. Conservative management was proved to be successful for the removal of the mercury from the appendix while we do not suggest bronchoalveolar lavage in cases of small amount elemental mercury aspiration.

The addition of elemental sulfur to the fermentation of Streptomyces sioyaensis in a soybean meal medium resulted in a three- to fourfold increase of siomycin. Further experiments on the effect of elemental sulfur during fermentation suggest that one of the key steps stimulating siomycin synthesis is the utilization of thiosulfate, which accumulates in the medium as the result of the oxidation ...

Nanoparticles classified in 4 overall groups containing: Metallic nanoparticles, ceramic nanoparticles, polymeric nanoparticles and semiconductor nanoparticles. These nanoparticles are used in some biomedical applications such as carrying medicine and photographing agents. With attention to different criteria which are both qualitative and quantitative, selecting the most suitable nanoparticles...

A UHV atomic hydrogen-cracking cell has been constructed to produce atomic hydrogen in order to perform in-situ cleaning of semiconductor samples. The cell was calibrated and tested with the objective of cleaning the III-V semiconductor samples such as GaAs. Mass spectroscopy studies during the atomic hydrogen cleaning of the GaAs samples revealed the chemical process of the hydrogen cleaning. ...

Nanoparticles classified in 4 overall groups containing: Metallic nanoparticles, ceramic nanoparticles, polymeric nanoparticles and semiconductor nanoparticles. These nanoparticles are used in some biomedical applications such as carrying medicine and photographing agents. With attention to different criteria which are both qualitative and quantitative, selecting the most suitable nanoparticles...

In this paper we consider electromagnetic field quantization in the presence of a dispersive and absorbing semiconductor quantum dot. By using macroscopic approach and Green's function method, quantization of electromagnetic field is investigated. Interaction of a two-level atom , which is doped in a semiconductor quantum dot, with the quantized field is considered and its spontaneous emission ...

SUMMARY Today, practical semiconductor products are an integral part of our lives and the infrastructure of society, and this trend will continue in the future. New areas of application will expand into medical, environmental, and agriculture (food)-related fields in addition to the conventional information and communication technology (ICT)-related field. Low-cost semiconductor devices with ad...

Many cognitive tasks are serial in that they require several steps that have to be carried out in a sequence. Here, I outline a new theory of how these processing steps are implemented in vision by networks of neurons that span several areas of the cerebral cortex. The theory explains how individual neurons can contribute to the elementary processing steps, and also how several processing steps...