Silanes 99.9999% High Purity Sih4 for Semiconductor Processes

• CAS No.: 7803-62-5
• Formula: Sih4
• EINECS: 232-263-4
• Model NO.: Sih4
• Constituent: Industrial Pure Air
• Grade Standard: Electronic Grade
• Purity: High Purity
• Appearance: Colorless Gas, with a Disgusting Smell of Garlic
• Molecular Weight: 32.117
• Density: 1.114 Kg/M³
• Transport Package: 20L, 40L, 280L and Customizable
• Specification: 99.9999%
• Trademark: Deo
• Origin: Suzhou
• HS Code: 28141000
• Production Capacity: 600tons/Year

Product Description

Product Description

Basic Info.

Model NO.	Sih4
Origin	Suzhou, China
Production Capacity	50000kg/Month

Transport Package

Cylinder

Trademark	Deo
HS Code	2812190091

Product Description

Product Descriptions:

Silane is a colorless gas with a unique ability to react with air, releasing a dramatic and dense smoke. Upon contact with air, silane ignites, producing a brilliant white, amorphous silica smoke. The primary health concern stems from its spontaneous ignition, which can result in severe and even life-threatening burns. If flames or excessive heat reach any part of the silane cylinder before reaching the valve, the risk of explosion increases. Furthermore, rapid or high-pressure release of silane can result in delayed explosions. A silane leak that doesn't immediately ignite is a significant hazard and demands urgent attention. Emergency personnel must be equipped with specialized protective gear designed for firefighting. Under no circumstances should attempts be made to halt the gas supply before the flames are fully extinguished.

Silane gas is a colorless, potent, and flammable substance, characterized by an irritating garlic-like odor. It is known for its hazardous properties.

Physical Properties

Project	Attribute
Character	Colorless and smells disgusting garlic
Gas density(g/mL,25°C)	1.44
Relative density of steam(g/mL,air=1)	1.1
Melting point(ºC)	-185
Boiling point(ºC, atmospheric pressure)	-111.9
Boiling point(ºC,760mmHg)	-112
Heat of evaporation(KJ/mol)	12.5
Heat of fusion(KJ/mol)	0.67
Generate heat(KJ/mol)	32.6
Specific heat capacity(KJ/(kg·K),25ºC)	1.335
Critical temperature(ºC)	-3.5
Critical pressure(MPa)	4.864

Typical Technical Data

Item	Impurities(ppm)
SiH4 purity(%) ≥99.9999
Ar	≤0.05
Chlorosilane	≤0.15
Si2H6	≤0.5
He	≤1
CO	≤0.05
O2	≤0.05
N2	≤1
H2	≤20
CO2	≤0.05
CH4	≤0.05
C	≤0.2
SiH2Cl2	≤0.5
CH3Si	≤0.5
Metals	≤0.03

Our top-tier SiH4 gas stands out as a versatile solution for the electronics sector, supporting an extensive range of material production processes. It is predominantly employed in the manufacturing of solar cells.

 

Application
Silane and its derivatives boast a wide array of industrial and medical applications. They serve as coupling agents, enhancing the bond between glass or carbon fibers and polymer matrices, thereby fortifying composite materials. Silane is used to coat glass fibers, promoting better polymer adhesion. In medical fields, it facilitates the creation of bio-inert layers on titanium implants. Beyond this, silanes are instrumental as water repellents, in masonry protection, and for graffiti control. In semiconductor production, silane plays a crucial role in applying polycrystalline silicon layers on wafers. By the late 1990s, the semiconductor industry used roughly 300 metric tons of silane annually. The growing affordability of solar photovoltaic module production has spurred the use of silane in depositing hydrogenated amorphous silicon on substrates like glass, metal, and plastic. Although the PECVD process is not material-efficient-wasting about 85% of silane-ongoing recycling initiatives are focused on minimizing waste and reducing the environmental impact of a-Si:H-based solar cells.

In the cutting-edge arena of advanced propulsion systems, silane is pivotal in supersonic combustion ramjets, where it initiates combustion within the compressed air stream. Its capability to combust with carbon dioxide highlights its potential as a fuel for engines on Mars. However, the reaction produces solid byproducts such as silicon dioxide and carbon, making it suitable only for liquid-fuel rockets that utilize liquid carbon dioxide, ramjets, or other advanced reaction engines.

Company Information:
Established in 2016, Jiangsu Deo Gas Co., Ltd. has quickly ascended to become a leader in the manufacturing arena, recognized as a prestigious global exporter. Our broad portfolio of industrial, specialty, electronic, and medical gases is integral to multiple sectors, including chemical, shipbuilding, and electronics. Our offerings are vital in fields like optical fiber communications, machinery manufacturing, food and medical applications, solar photovoltaics, LED technology, and aerospace, as well as in extensive scientific research. We proudly present a wide selection of cylinder gases, electronic gases, and advanced systems, featuring cutting-edge gas tanks, state-of-the-art panels, innovative valves, and precision fittings. Our esteemed engineering services are accessible both domestically and globally. Our steadfast mission is to cultivate strong international partnerships by delivering innovative, dependable products, supported by specialized assistance and customized solutions.
Our extensive product lineup features an impressive range of gases, including H2, O2, N2, Ar, CO2, propane, acetylene, helium, and sophisticated laser gas mixtures. Additionally, we offer SiH4, SiH2Cl2, SiHCl3, SiCl4, NH3, CF4, NF3, SF6, HCl, N2O, and doped gas mixtures (containing TMB, PH3, and B2H6), alongside xenon, neon, krypton, and a broad array of other innovative gases.

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FAQ

Q: What's your product price?
A: Pricing for each gas is influenced by market supply and demand, quantity, and purity, making it difficult to set a fixed price. If you are interested in any specific gas, please provide your detailed requirements, and I would be happy to offer you a tailored quote.
Q: What is the minimum order quantity?
A: Minimum order quantities vary across different products. Please share your specific requirements with us, and we will provide the relevant details.
Q: What is the delivery time?
A: If the cylinder is in stock and only requires gas filling, delivery is approximately 7-10 days ex-works after receiving the deposit. Custom cylinder orders require about 15-35 days ex-works post-deposit, depending on the quantity.
Q: How do you ensure gas quality?
A: Our cylinders undergo a thorough treatment process, including cleaning, drying, vacuum pumping, and replacement before gas filling to ensure they are clear and dry. Each treated cylinder is tested for internal purity. After filling, all gases are tested once more. If the gas fails to meet standards, it is reprocessed. Finally, we provide a qualified gas test report.
Q: Are all cylinders recyclable?
A: Typically, seamless steel cylinders are recyclable. However, disposable cylinders are intended for single use only.
Q: Can we send back cylinders to China for refilling?
A: Yes, you can send back our cylinders for refilling. Inform us before exporting, and we will manage all necessary import customs clearance formalities.