Silicon Sputtering Targets - Si

Silicon is the most abundant electropositive element in The Earth’s crust. It’s a metalloid with a marked metallic luster and very brittle. It is usually tetravalent in its compounds, although sometimes its bivalent, and it’s purely electropositive in its chemical behaviour. Moreover, pentacoordinated and hexacoordinated silicon compounds are also known.It’s almost as electropositive as tin and much more positive than germanium or  lead. According to this metallic character, it forms tetrapositive ions and various covalent compounds; it appears as a negative ion only in a few silicides and as a positive constituent of oxyacids or complex anions. It  forms various series of hydrides, various halides (many of which contain silicon-silicon bounds) and many series of compounds which contain oxygen, which can have ionic or covalent properties.