silicon dioxide

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Related to silicon oxide: silicon dioxide, Silicon nitride

silicon dioxide:

see silicasilica
or silicon dioxide,
chemical compound, SiO2. It is insoluble in water, slightly soluble in alkalies, and soluble in dilute hydrofluoric acid. Pure silica is colorless to white.
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silicon dioxide

[′sil·ə·kən dī′äk‚sīd]
(inorganic chemistry)
SiO2 Colorless, transparent crystals, soluble in molten alkalies and hydrofluoric acid; melts at 1710°C; used to make glass, ceramic products, abrasives, foundry molds, and concrete.

silica, silicon dioxide

A white or colorless substance, nearly insoluble in water and in all acids except hydrofluoric; extremely hard; fuses to a colorless amorphous glass.

silicon dioxide

(SiO2) A hard, glassy mineral found in materials such as rock, quartz, sand and opal. In metal oxide semiconductor (MOS) chip fabrication, silicon dioxide is used to create the insulation layer between the metal gates of the top layer and the silicon elements below. See silica gel.
References in periodicals archive ?
The silicon oxide layer is chemically inert and sharply reduces oxygen and moisture permeability.
A voltage run across a thin sheet of silicon oxide strips oxygen atoms away from a channel 5 nanometers (billionths of a meter) wide, turning it into conductive metallic silicon.
The film is based on Mitsubishi's Techbarrier film which has a silicon oxide coating, but the company is not saying what is different about X Barrier to give it higher performance.
The water repellent layer is a silicon oxide carbide film with the atomic percent of Si:O:C m a range of 100:40 to 120:80 to 160, and a 2 to 300nm thickness.
SIG's Plasma Impulse Coating Vapor Deposition (PICVD) system applies a silicon oxide coating less than 0.
Unlike basic units of silicon oxide and other metal oxides in widely used porous crystalline materials, the germanium-oxide units form secondary structures that contain six tetrahedra and four octahedra.
The new PET package is said to feature an inner surface covered with a silicon oxide.
To overcome the problem, Asahi developed a PET bottle whose inner surface is covered with a silicon oxide.
Exatec has developed a manufacturing process eponymously called Exatec 500 that uses plasma-enhanced chemical vapor deposition to apply a microns-thick layer of silicon oxide to polycarbonate panels, giving them abrasion resistance similar to glass.
Sunderland's Wearmouth Bridge has been given a thorough facelift with six coats of high spec silicon oxide paint.
After carefully measuring the optical properties of thin films of tungsten, silicon oxide, and silicon nitride fabricated in a NIST cleanroom, optical measurements of anti-reflection structures agreed with numerical calculations for their performance.
The recording head is made in steps, including etching, deposition, metalization, and planarization of layers on a silicon wafer, with silicon oxide as an insulator.