Cobalt Silicide CoSi2

CoSi2 Cobalt Silicide

Chinese name: cobalt silicide

Chemical formula: CoSi2

Molecular weight: 115.104

CAS No.: 12017-12-8

EINECS No. 234-616-8

Density: 5.3g/cm3

Melting point: 1277 ℃

Lattice constant: a=0.535nm

Crystal system: cubic system crystal

Appearance: grey silicide ceramic powder

Solubility: insoluble in water

Property and stability: It will not decompose if used and stored according to specifications. CoSi2 can react with hot hydrochloric acid,



Soluble in hydrochloric acid, insoluble in sulfuric acid. It can be dissolved by aqua regia, concentrated nitric acid, strong alkaline solution, and molten alkali hydroxide and carbon



It is eroded by acid and alkali. It can react with hydrogen sulfide, hydrogen fluoride, hydrogen chloride, fluorine, chlorine, etc.

Synthesis method:

Mix the cobalt powder and silicon powder evenly according to the chemical composition of CoSi2, and melt them under the condition of isolating air



Melt, and keep it at 1150 ℃ for 100h to fully homogenize it, and the product is nearly single phase



CoSi2。

Application: Cobalt silicide powder has the characteristics of low resistivity and good thermal stability, and is mainly used for large-scale integrated power



Road. In addition, cobalt silicide has a crystal structure similar to silicon, so epitaxy can be formed on silicon substrate



CoSi2/Si structure to study the interface characteristics of epitaxial metal silicon. Cobalt silicide (cosix) is a metal and semiconductor



The materials widely used for connection are used as the inter connect between the base electrode of semiconductor and the metal wire



Work in the device.

Storage method: Keep in a dry and cool environment, not exposed to the air, and prevent oxidation and agglomeration due to moisture,



It affects the dispersion performance and use effect.