.

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.



在线联系供应商

至: CRYSCORE OPTOELECTRONIC LIMITED
Your E-mail:
消息正文:


Send to other suppliers

Other supplier products

A-PLANE (11-20) SAPPHIRE WAFERS
A-PLANE (11-20) SAPPHIRE WAFERS A plane sapphirewafers have a uniform dielectric constant and highly insulating characteristic, so they are generally used for hybrid microelectron...
Standard Sapphire Wafers (C-plane)
Standard Sapphire Wafers (C-plane) As a professional sapphire wafermanufacturer, CRYSCORE can provide standard or optical sapphirewafers with any orientation applied to epitaxy, as w...
CUSTOM SAPPHIRE WINDOWS
CUSTOM SAPPHIRE WINDOWS Due to the extensive applications of sapphire in various fields, different dimensions are required. CRYSCORE can provide custom sapphire windowswit...
CUSTOM SAPPHIRE WAFERS
CUSTOM SAPPHIRE WAFERS CUSTOM SAPPHIRE WAFERS CRYSCORE supplies sapphire wafers with the high-quality surfaces in all orientations (C-plane, A-plane, R-plane, sapphire m...
LED SUBSTRATES
LED SUBSTRATES LED remains the dominant sapphire application. Sapphire substrates are ideal for use in LED applications due to high-temperature resistance, high s...
供应产品

Same products

Fresh Young Coconut
Fresh Young Coconut 卖方: 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
Looking for Vietnamese green seedless lime exporter 卖方: 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
Song Nam export Vietnamese dragon fruit 卖方: Song Nam ITD Co., Ltd Song Nam ITD has grown up from dragon fruit farmer families, so we understand all procedures from...
匈牙利-自增压液氮罐-液氮容器价格
匈牙利-自增压液氮罐-液氮容器价格 卖方: 河南天之道生物科技有限公司 液氮作为现代科研与工业领域的关键冷却介质,其存储与供给方式直接影响实验与生产的效率与安全性。为此,我们精心设计了液氮供应罐系列,旨在为用户提供一个高效、安全、可靠的低温存储解决方案。 液氮供应罐...
Casting wax used for golf head manufacturing
Casting wax used for golf head manufacturing 卖方: Syntop chemical Co.,Ltd. Casting wax is mainly used in the field of aviation industry, civil precision casting, but also i...