Vapor Pressure at +68±1 °F +0±1 mmHg Solubility +0.12 Solubility at +200 ℃ +0.900 Structure of 二氧化硅 Oxidation Numbers of SiO₂ Lewis Structure of SiO₂ O=[Si]=O O=Si=O Number and Types of Bonds in SiO₂ Double Bonds 2 Composition of 二氧化硅 Si 1 O 2翻译...
It was found that the additives of oxygen and sodium-containing vapors exerted a noticeable effect on the composition of the films. The compositions of the films prepared at the low-frequency and high-frequency discharge excitation were also different....
The present invention provides an aqueous composition useful for polishing silica and silicon nitride on a semiconductor wafer comprising by weight percent 0.01 to 5 carboxylic acid polymer, 0.02 to 6 abrasive, 0.01 to 10 polyvinylpyrrolidone, 0.005 to 5 cationic compound, 0.005 to 5 zwitterionic co...
The present invention relates to an aqueous composition useful for polishing silica and silicon nitride on a semiconductor wafer, which comprises 0.01 to 5 weight percent of carboxylic acid polymer, 0.02 to 6 abrasive 0.01 to 10 of polyvinylpyrrolidone, 0.005 to 5 of cationic compound, 0.005 to ...
In this paper we describe the growth of silicon nitride from nitrogen and silane for the first time by capacitively coupled remote PECVD. We report on the effect of process parameters on the composition and properties of the deposited films and we show that by adjustment of these parameters it...
Composition Inorganic Salt Grade Fumed Silica Transport Package Kraft Paper Bag Specification 25kg/bag Trademark TEMI Origin China HS Code 2811229000 Production Capacity 20000mt/Year Product Description PRODUCT DESCRIPTION OARSIL is amorphous fumed silica, produced ...
Studies of the gas‐phase products, silicon dioxide film properties, and kinetics of the diethylsilane/oxygen reaction under low pressure chemical vapor deposition (LPCVD), conditions in both packed and unpacked stirred flow reactors are reported. Effects of flow rate, reactant composition, pressure,...
EA-CR series silicate composition rapid analyzer is designed for the silicate industry that has long used gravimetric method, volumetric method, spectrophotometric method, flame photometric method and atomic absorption photometric method to combine chemical analysis of materials. The ...
Depth profiling by Auger electron spectroscopy shows uniform composition and no oxygen or carbon contamination in the bulk. The films are featureless by scanning electron microscopy under 100,000X magnification.关键词: ZN-AL ALLOYS RARE-EARTH ELEMENT PHASE TRANSFORMATION AGING X-RAY DIFFRACTION ...
The effect of gaseous and liquid nitrogen dioxide on the composition and electronic properties of porous silicon (PS) is investigated by means of optical spectroscopy and electron paramagnetic resonance. It is detected that the interaction process is weak and strong forms of chemisorption on the PS ...