Silicon on Sapphire

• 

As a professional sapphire wafermanufacturer, CRYSCORE can provide standard or optical sapphirewafers with any orientation applied to epitaxy, as well as sapphire windows with any specifications applied to optics. Patterned sapphire substrates and sapphire ingots also can be provided. Expert in sapphire optics manufacturing.

SILICON ON SAPPHIRE

A Brief Introduction of Silicon on Sapphire Technology

Silicon on sapphire(SOS) technology is a hetero-epitaxial process for metal-oxide-semiconductor (MOS) integrated circuit (IC) manufacturing that consists of a thin layer (typically thinner than 0.6 µm) of silicon grown on a SOS wafer(Al2O3). SOS wafersarepart of the silicon-on-insulator (SOI) family of CMOS (complementary MOS) technologies. Typically, high-purity artificially grown sapphire crystals are used.

The silicon is usually deposited by the decomposition of silane gas (SiH4) on heated sapphire substrates. The advantage of sapphire is that it is an excellent electrical insulator, preventing stray currents caused by radiation from spreading to nearby circuit elements. SOS faced early challenges in commercial manufacturing because of difficulties in fabricating the very small transistors used in modern high-density applications.

This is because the SOS process results in the formation of dislocations, twinning and stacking faults from crystal lattice disparities between the sapphire and silicon. Additionally, there is some aluminum, a p-type dopant, contamination from the substrate in the silicon closest to the interface.

Silicon on Sapphire Technology

Why is Silicon on Sapphire Technology So Important to Integrated Circuit

Due to sapphire has high permittivity that can eliminate the interaction between components of the integrated circuit, not only can reduce leakage current and parasitic capacitance, enhance radiation resistance and reduce power consumption but also can improve the level of integration and two-layer wiring, thus, sapphire is the ideal material for large scale and very large scale integrated circuit.

Silicon on sapphire technology provides ideal isolation and reduces the parasitic capacitance at the bottom of the PN junction, so it is suitable for high-speed large scale integrated circuits to achieve high speed and low power consumption. This process is generally used to make CMOS circuits.

In addition, in the SOS microelectronic circuit design and production, all kinds of semiconductor devices usually need to make on the structural integrity silicon thin film, and because thermal expansion coefficient of silicon is similar to sapphire, a silicon monocrystalline film (100) can be grown on the surface orientation(1-102) of the sapphire substrate by heteroepitaxy.

At present, sapphire crystal has become a widely used substrate for the growth of semiconductor materials.

Другие товары поставщика

	CUSTOM SAPPHIRE WINDOWS	Due to the extensive applications of sapphire in various fields, different dimensions are required. CRYSCORE can provide custom sapphire windowswit...
	0391-393 3936	R-PLANE (1-102) SAPPHIRE WAFERS R plane sapphire wafers are preferred for the hetero-epitaxial deposition of silicon used in microelectronic IC app...
	PATTERNED SAPPHIRE SUBSTRATES	Sapphire wafer is the most widely used substrate material in semiconductor lighting industry, and patterned sapphire substrate (short for PSS) is t...
	8 INCH C-PLANE(0001) SAPPHIRE WAFERS	The 8-inch sapphire waferscan enable chip makers to roll out more productivity, which will help them drive down costs dramatically. CRYSCORE is ...
	SAPPHIRE WINDOWS	Sapphire has a wide transmission range, spanning the three wavelength bands of ultraviolet, visible light and infrared and has high thermal shock r...

Похожие товары

	Fresh Young Coconut	Продавец: Song Nam ITD Co., Ltd	Fresh Young Coconut is an organic fresh fruit and whole year round in Vietnam. Our fresh young co...
	Looking for Vietnamese green seedless lime exporter	Продавец: Song Nam ITD Co., Ltd	Song Nam is one of the best exporter of green seedless lime in Vietnam. With the long term cooper...
	Song Nam export Vietnamese dragon fruit	Продавец: Song Nam ITD Co., Ltd	Song Nam ITD has grown up from dragon fruit farmer families, so we understand all procedures from...
	Венгрия-самонагнетаемый резервуар жидкого азота-криогенный сосуд дьюара	Продавец: Хэнань Тяньчжидао Биотехнология Лтд.	Жидкий азот является ключевой охлаждающей средой в современных научных исследованиях и промышленн...
	Casting wax used for golf head manufacturing	Продавец: Syntop chemical Co.,Ltd.	Casting wax is mainly used in the field of aviation industry, civil precision casting, but also i...