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Organic Silane

Silane, that is, the compound of silicon and hydrogen, is a general term for a series of compounds, including silane (SiH4), ethyl silane (Si2H6) and some more advanced silicon hydrogen-derived compounds, the general formula is SinH2n+2 or hydrogen is substituted by other functional groups after the derivative, of which silane is the most common, sometimes referred to as silane.

In 1857, the German chemist H Buff discovered silanes, and for the next 100 years or so silanes were only a few researchers studying in the laboratory, without any use. With the rise of semiconductor technology in the 1950s, people began to consider the specialties of silanes, and silanes began to be used in the electronics industry. In the 1980s, the application of silanes underwent major changes. With the advent of a series of new technologies or the success of the development of new products using silanes, the use of silanes has increased dramatically. Thousands of tons of silanes are processed into ultrapure semiconductor silicon in factories every year, and hundreds of tons of gas are used to make a wide variety of new materials and devices. Considering that most devices in these applications consume only milligrams or even micrograms of gas per device, and the thickness of the film made of silane is in the order of microns, it can be seen that the above silane amount is not a small number. In the 1990s, a larger number of new functional devices came out, among which ultra-high-speed, large-capacity computer chips, high-definition flat panel displays, high-efficiency and low-cost solar cells, high-performance ceramic engine parts, sensors with various specific functions, etc. have been developed on a large scale, and more updated devices are still emerging, and these devices are using silanes.

The reason why silane is widely used in high technology and is becoming more and more important is first of all related to its characteristics, but also related to the special needs of modern high technology. Through thermal decomposition or chemical reaction with other gases, a series of silicon-containing substances such as monocrystalline silicon, polycrystalline silicon, amorphous silicon, metal silicide, silicon nitride, silicon carbide, and silicon Oxide can be prepared from silanes. Silanes enable the highest purity, finest (up to atomic size) control, and the most flexible chemical reactions. Thus, a variety of silicon-containing materials are made into complex and fine structures according to various needs, which is the basic condition required by modern materials and devices with various specific functions.

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