.

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 sapphire (Al2O3) wafer. SOS is part 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 SapphireTechnology 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 substrateby heteroepitaxy.

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

CRYSCORE OPTOELECTRONIC LIMITED has been a professional manufacturer specialized in high-qualitysos wafers, silicon on sapphire wafersand sapphire opticswindowsand etc.Want to know more? Please contact us.



Отправить запрос, связаться с поставщиком

Кому: CRYSCORE OPTOELECTRONIC LIMITED
Ваш E-mail:
Текст письма:


Send to other suppliers

Другие товары поставщика

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...
A-PLANE (11-20) SAPPHIRE WAFERS
A-PLANE (11-20) SAPPHIRE WAFERS A-PLANE (11-20) SAPPHIRE WAFERS A plane sapphire wafershave a uniform dielectric constant and highly insulating characteristic, so they are genera...
8 INCH C-PLANE(0001) SAPPHIRE WAFERS
8 INCH C-PLANE(0001) SAPPHIRE WAFERS 8 INCH C-PLANE(0001) SAPPHIRE WAFER The 8-inch sapphire wafers can enable chip makers to roll out more productivity, which will help them drive do...
STANDARD SAPPHIRE WAFERS (C-PLANE)
STANDARD SAPPHIRE WAFERS (C-PLANE) CRYSCORE can offer Epi-Ready grade sapphire wafer with a very low surface roughness in complete orientation options. c plane sapphirewafers are bei...
SAPPHIRE WINDOWS
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...
Все товары поставщика

Похожие товары

DM-16BF DM-18BF New cover Electric Sprayer
DM-16BF DM-18BF New cover Electric Sprayer Продавец: Zhejiang Huaqi Information Technology Co., LTD The Electric Knapsack Sprayer is a game-changer in the field of agricultural pest control. Engine...
Simple Round Breeding Cage
Simple Round Breeding Cage Продавец: Zhejiang Huaqi Information Technology Co., LTD The Simple Round Breeding Cage features a durable and lightweight construction, making it suitabl...
Сирия - Контейнер для хранения жидкого азота - Указатель уровня жидкого азота
Сирия - Контейнер для хранения жидкого азота - Указатель уровня жидкого азота Продавец: Хэнань Тяньчжидао Биотехнология Лтд. Точные условия эксперимента и безопасное хранение образцов являются ключевыми элементами для бесп...
Италия-сосуд дьюара для лаборатории-указатель уровня жидкого азота
Италия-сосуд дьюара для лаборатории-указатель уровня жидкого азота Продавец: Henan Tianchi Instrument & Equipment Co., Ltd. Точные условия эксперимента и безопасное хранение образцов являются ключевыми элементами для бесп...
Египет-дьюары для лаборатория-монитор уровня жидкого азота
Египет-дьюары для лаборатория-монитор уровня жидкого азота Продавец: Henan Tianzhidao Biological Technology Co., Ltd. Точные условия эксперимента и безопасное хранение образцов являются ключевыми элементами для бесп...