silicon dioxide
71Crystal — /kris tl/, n. 1. a city in SE Minnesota, near Minneapolis. 25,543. 2. a female given name. * * * I Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Each of a crystal s… …
722001 anthrax attacks — A letter sent to Senate Majority Leader Tom Daschle containing anthrax powder killed two postal workers Location New York …
73semiconductor device — ▪ electronics Introduction electronic circuit component made from a material that is neither a good conductor nor a good insulator (hence semiconductor). Such devices have found wide applications because of their compactness, reliability,… …
74Thermische Oxidation von Silizium — Die thermische Oxidation von Silizium ist in der Halbleitertechnik ein Beschichtungsverfahren, bei dem auf einem einkristallinen Siliziumsubstrat (beispielsweise einem Silizium Wafer) eine dünne Schicht aus amorphen Siliziumdioxid aufgebracht… …
75Gallium(III) arsenide — Chembox new Name = Gallium arsenide ImageFile = Gallium arsenide.jpg ImageFile1 = Gallium arsenide unit cell 3D balls.png IUPACName = Gallium arsenide Section1 = Chembox Identifiers CASNo = 1303 00 0 SMILES = Ga#As Section2 = Chembox Properties… …
76Electron beam induced current — (EBIC) is a semiconductor analysis technique performed in a scanning electron microscope (SEM) or scanning transmission electron microscope (STEM). It is used to identify buried junctions or defects in semiconductors, or to examine minority… …
77Plasma etcher — A plasma etcher, or etching tool, is a tool used in the production of semiconductor devices. Plasma etcher produces a plasma from a process gas, typically oxygen or a fluorine bearing gas, using a high frequency electric field, typically 13.56… …
78Glass — This article is about the material. For other uses, see Glass (disambiguation). Moldavite, a natural glass formed by meteorite impact, from Besednice, Bohemia …
79phase — phaseless, adj. phasic, phaseal, adj. /fayz/, n., v., phased, phasing. n. 1. any of the major appearances or aspects in which a thing of varying modes or conditions manifests itself to the eye or mind. 2. a stage in a process of change or… …
80Silica — The chief component of sand and a substance responsible for lung disease and cancer. Crystalline silica of respirable size is primarily quartz dust occurring in industrial and occupational settings in the form of fine, breathable particles.… …
