The influence of power and substrate temperature on chemical composition, determined by ESCA, of the inductively coupled RF plasma polymerization of acrylonitrile

1985 ◽  
Vol 23 (2) ◽  
pp. 479-488 ◽  
Author(s):  
H. S. Munro ◽  
H. Grünwald
Keyword(s):  
Chemical Composition ◽  
Substrate Temperature ◽  
Plasma Polymerization ◽  
Rf Plasma ◽  
Inductively Coupled

A two‐temperature model of the inductively coupled rf plasma

1987 ◽  
Vol 61 (5) ◽  
pp. 1753-1760 ◽  
Author(s):  
Javad Mostaghimi ◽  
Pierre Proulx ◽  
Maher I. Boulos
Keyword(s):  
Rf Plasma ◽  
Temperature Model ◽  
Inductively Coupled ◽  
Two Temperature

Plasma Surface Modification of Silica and its Application in Epoxy Molding Compounds for Large-Scale Integrated Circuits Packaging

2010 ◽  
Vol 158 ◽  
pp. 184-188 ◽  
Author(s):  
Ming Shan Yang ◽  
Lin Kai Li ◽  
Jian Guo Zhang
Keyword(s):  
Surface Modification ◽  
Acrylic Acid ◽  
Integrated Circuits ◽  
Plasma Polymerization ◽  
High Speed ◽  
Large Scale ◽  
Treatment Time ◽  
Rf Plasma ◽  
Formaldehyde Resin ◽  
Molding Compounds

The surface modification of silica for epoxy molding compounds (EMC) was conducted by plasma polymerization using RF plasma (13.56MPa), and the modification factors such as plasma power, gas pressure and treatment time were investigated systematically in this paper. The monomers utilized for the plasma polymer coatings were pyrrole, 1,3-diaminopropane, acrylic acid and urea. The plasma polymerization coating of silica was characterized by FTIR, contact angle. Using the silica treated by plasma as filler, ortho-cresol novolac epoxy as main resin, novolac phenolic-formaldehyde resin as cross-linking agent and 2-methylmizole as curing accelerating agent, the EMCs used for the packaging of large-scale integrated circuits were prepared by high-speed pre-mixture and twin roller mixing technology. The results have shown that the surface of silica can be coated by plasma polymerization of pyrrole, 1,3-diaminopropane, acrylic acid and urea, and the comprehensive properties of EMC were improved.

scholarly journals Mineralization of rare metals in the lakes of East Kazakhstan

2020 ◽  
pp. 16-21
Author(s):  
B. B Amralinova ◽  
O. V Frolova ◽  
I. E Mataibaeva ◽  
B. B Agaliyeva ◽  
S. V Khromykh
Keyword(s):  
Chemical Composition ◽  
Inductively Coupled Plasma ◽  
Digital Terrain Model ◽  
Rare Metal ◽  
Rare Metals ◽  
Inductively Coupled ◽  
Terrain Model ◽  
Digital Terrain ◽  
East Kazakhstan ◽  
Lake Waters

Purpose. Study on the chemical composition of lake waters, salt brines, brine and bottom sediments to identify the mineralization of rare metals and other types of minerals. Methodology. Mass spectrometric studies (mass spectrometer with inductively coupled plasma ICP-MS 7500cx from AgilentTechnologies) for the purpose of high-precision analytical studies on the chemical composition of salt lake water in order to assess the content of rare elements. The use of unmanned aerial vehicles for linking and geometrizing lakes. Findings. Field surveys on the geometrization and linking of lakes were carried out. From the materials obtained with the help of the drone, orthophotoplans were created (with a measurement accuracy of up to 1 centimeter), as well as a digital terrain model and a digital terrain model. A complex of analytical works was carried out using inductively coupled plasma spectrometry. When analyzing the distribution graphs of the absolute content of micro-components in the waters of the lakes of the Delbegeteysky massif, it was found that all samples were enriched with sodium, phosphorus, iron, magnesium and barium. The results of the analyses revealed the predominance of sulfates and chlorides in the composition of the surface waters of most of the water bodies of the Delbegeteysky massif. At the Burabai site, lake waters are characterized by an alkaline reaction of the environment (on average = 8.71). At the same time, the salinity of water bodies varies from 05 to 9 g/dm3. Originality. Large-scale outcrops of granites of the Kalba complex (P1), with which a rare-metal type of mineralization is genetically associated, are known to be on the selected study sites. Quartz-wire-greisen and quartz-wire tin, tin-tungsten and tungsten formations are also widely developed. Considering the large geochemical migration ability of rare alkaline elements in the thickness of loose sediments as a result of intensive geodynamic processes in the East Kazakhstan region, it is possible to assume the possibility of their migration to the upper horizons and accumulation in salt lakes localized within the area of development of granite intrusions of Permian age and associated deep tectonic faults. Practical value. The results of the research can serve as a revival of the rare metal industry in the region, which will allow developing new high-tech industries and creating new jobs in this area. The obtained results can be used for setting up further exploration and operational work on the selected promising areas.

Effects of substrate temperature on morphology, structure and chemical composition of Cu2S films

2013 ◽  
Author(s):  
Bing Ren ◽  
Jian Huang ◽  
Lin Wang ◽  
Ke Tang ◽  
Kaifeng Qin ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Substrate Temperature
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