International Symposium on 'Ultrapure Materials: Processing, Characterization and Applications'

摘要

The demand for ultrapure materials for electronics industry is constantly increasing the world over. The levels of purity achieved as represented in terms of number of nines (say 99.9999...at. percent) is also increasing year after year. Such pure materials are required for enhancing the efficiency of electronic devices. This is a specialized and cost intensive research area and only a few research groups across the world are vigorously pursuing it. Recent surge in the studies of ultrapure materials and intensive academic discourse on important issues in the contemporary research areas of Materials Science and Engineering and particularly related to Microelectronics, motivated us to organize an International Symposium on "Ultrapure Materials: Processing, Characterization and Applications". This symposium was held under the aegis of the Centre for Materials for Electronics Technology (C-MET), during November 22-23/2004 at Hyderabad, India. It gives us pleasure to bring out the proceedings of this conference as a special issue of the Bulletin of Materials Science. Most of the papers were invited talks covering all three parts of processing, characterization and applications of ultrapure materials. The technical topics covered include purification of transition, rare-earth and p-block elements and compound semiconductors such as HgCdTe and GaN. The applications of high purity materials in physical vapour deposition (PVD) and radio-isotopes have been discussed. The characterization of ultrapure materials using mass spectrometry, glow discharge optical emission spectrometry (GDOES) and certified reference materials (CRMs) have also been presented in detail.