Despite development of flash silicon memory and optical drives, magnetic hard disks remain the mainstay of the data storage industry, providing high speed access and high reliability.
Modern drives comprise a number of circular platters of either aluminium or glass construction, onto which are deposited magnetic and non-magnetic layers.
The general construction of a disk platter is shown in ...
Largest Hydrogen Generator Manufacture in China
Address:No.222, Kaituo Road, High-tech Development Zone, Jinan, Shandong, China. P.C.:250100 Tel:0086-0531-87079866 Fax:0086-0531-87079899 Website:http://www.ql-spe.com E-mail:sales01@ql-spe.com MSN:SPE-Hydrogen@hotmail.com
1. QL Series Hydrogen Generator Conventional type 1.Features: 1.Adopt the worlds leading SPE/PEM technology to produce ...
NOx Detection The detection of NO and NO2 using the HPR-20
Summary The Hiden HPR-20 gas analysis system has been used in a variety of applications in the fields of catalysis and thermal analysis. One important aspect of catalysis research is the reduction of NOx in such applications as car exhausts and power plants. This research involves many challenges in meeting current emission legislation ...
Operando Studies HPR-20 for Operando Experiments
One of the more recent developments in catalyst characterization has been the increased use of operando techniques. The operando methodology combines the evaluation of the active catalyst structure (spectroscopy) and catalytic activity/selectivity (gas analysis) in a single experiment. The study of reaction mechanisms under real working conditions ...
Surface Science CATLAB Application Note 290
Temperature Programmed Reduction TPR with the Hiden QIC Series
Temperature programmed reduction (TPR) experiments are a very common catalyst characterisation technique. TPR involves linearly heating a sample under a reducing atmosphere such as H2 or CH4 and measuring the consumption of the reducing gas and the reduction products formed. The TPR ...
Processing plasmas, such as those in magnetron deposition systems, sometimes include significant proportions of multiply- charged ions. Their identification and measurement of their energy distributions using Hiden EQP and PSM instruments are readily carried out. This note clarifies the interpretation of the experimental data.
The bond pad is of vital importance to semiconductor technology as it is the portal through which signals pass to and from the integrated circuit. Failure of a simple wire bond will mean early failure in service or low device yield. Learn why imaging SIMS is the ideal tool to investigate the distribution of very thin surface layer contamination.
Of the many methods of data storage magnetic hard discs still provide the most cost effective means for high density rapid access. The continued move towards ever smaller read/write heads and more closely spaced data tracks has lead to a dramatic development of magnetic materials and structures for this demanding application.
Analysis of the metallic layer structures used in magnetic data ...
Dry (ion beam) etching is used in numerous process steps during semiconductor device and magnetic recording media manufacture.
However, owing to the low selectivity in ion-beam processing, even when reactive gases are used, methods must be found to ascertain depth and location of the etch stop. Consequently test pieces of material are often processed to assess etch rates, which can be time ...
The requirement for energy efficient buildings has led to the development of glass coatings capable of reflecting heat (infrared radiation) whilst passing visible light with little degradation of color or perceived clarity. In addition, the coatings provide an opportunity to add color to the exterior of a glass clad building, resulting in exciting architectural possibilities.
The active part of ...
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