نتایج جستجو برای: silicon dioxide

تعداد نتایج: 159634  

Journal: :Science 2009
Maitri P Warusawithana Cheng Cen Charles R Sleasman Joseph C Woicik Yulan Li Lena Fitting Kourkoutis Jeffrey A Klug Hao Li Philip Ryan Li-Peng Wang Michael Bedzyk David A Muller Long-Qing Chen Jeremy Levy Darrell G Schlom

Metal oxide semiconductor field-effect transistors, formed using silicon dioxide and silicon, have undergone four decades of staggering technological advancement. With fundamental limits to this technology close at hand, alternatives to silicon dioxide are being pursued to enable new functionality and device architectures. We achieved ferroelectric functionality in intimate contact with silicon...

2016
Akihiko Hirata Shinji Kohara Toshihiro Asada Masazumi Arao Chihiro Yogi Hideto Imai Yongwen Tan Takeshi Fujita Mingwei Chen

Solid silicon monoxide is an amorphous material which has been commercialized for many functional applications. However, the amorphous structure of silicon monoxide is a long-standing question because of the uncommon valence state of silicon in the oxide. It has been deduced that amorphous silicon monoxide undergoes an unusual disproportionation by forming silicon- and silicon-dioxide-like regi...

2017
Vikram Passi Ulf Sodervall Bengt Nilsson Goran Petersson Mats Hagberg Christophe Krzeminski Emmanuel Dubois Bert Du Bois Jean-Pierre Raskin

Damages are created in a sacrificial layer of silicon dioxide by ion implantation to enhance the etch rate of silicon-dioxide in liquid and vapor phase hydrofluoric acid. The etch rate ratio between implanted and unimplanted silicon dioxide is more than 150 in vapor hydrofluoric acid (VHF). This feature is of interest to greatly reduce the underetch of microelectromechanical systems anchors. Ba...

2008
A. N. Nazarov V. S. Lysenko T. M. Nazarova

The review concentrates on the analysis of the RF hydrogen plasma effect on thin-film metal-dioxide-silicon and silicon-dioxide silicon structures which are a modern basis of microand nanoelectronics. The especial attention is paid to athermic mechanisms of transformation of defects in dioxide, SiO2-Si interface and SiO2-Si nanocrystal ones and thin layers of silicon; atomic hydrogen influence ...

2014
M. Hackel

A semiclassical Monte Carlo technique is employed to simulate the steady-state electron transport in silicon dioxide at intermediate and high electric fields. The electronic structure is modelled by a single parabolic, by a single nonparabolic as well as an isotropic four-band model. We find that the electronic behavior of silicon dioxide is mainly influenced by a single nonparabolic conduction...

Journal: :Biomaterials 2003
Gabriela Voskerician Matthew S Shive Rebecca S Shawgo Horst von Recum James M Anderson Michael J Cima Robert Langer

The biocompatibility and biofouling of the microfabrication materials for a MEMS drug delivery device have been evaluated. The in vivo inflammatory and wound healing response of MEMS drug delivery component materials, metallic gold, silicon nitride, silicon dioxide, silicon, and SU-8(TM) photoresist, were evaluated using the cage implant system. Materials, placed into stainless-steel cages, wer...

Journal: :international journal of advanced design and manufacturing technology 0
sayed amirabbas oloumi ahmad sabounchi ahmad sedaghat

rapid thermal processing (rtp) has become a key technology for semiconductor device manufacturing in a variety of applications, such as thermal oxidation, annealing, and thin-film growth. hence, understanding the radiative properties of silicon and other relevant materials is essential for the analysis of the thermal transport processes. we have analyzed and calculated the spectral, directional...

2010
James CK Lai Gayathri Ananthakrishnan Sirisha Jandhyam Vikas V Dukhande Alok Bhushan Mugdha Gokhale Christopher K Daniels Solomon W Leung

Recent evidence suggests silicon dioxide micro- and nanoparticles induce cytotoxic effects on lung cells. Thus, there is an increasing concern regarding their potential health hazard. Nevertheless, the putative toxicity of nanoparticles in mammalian cells has not yet been systematically investigated. We previously noted that several metallic oxide nanoparticles exert differential cytotoxic effe...

Journal: :Optics express 2008
Kazuhiro Ikeda Robert E Saperstein Nikola Alic Yeshaiahu Fainman

We introduce and present experimental evaluations of loss and nonlinear optical response in a waveguide and an optical resonator, both implemented with a silicon nitride/ silicon dioxide material platform prepared by plasma-enhanced chemical vapor deposition with dual frequency reactors that significantly reduce the stress and the consequent loss of the devices. We measure a relatively small lo...

2013
V. E. Hauser

The water content of phosphoric acid in etching silicon nitride and silicon dioxide plays an important role. An increase in water content increases the etch rate of silicon nitride and decreases the etch rate of silicon dioxide. The highest possible temperature for a fixed water content at atmospheric pressure in the system H2O-P2O5 is realized by boiling the liquid and refluxing the vapor phas...

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