High Purity Silanes Electronics Gas for Semiconductor Applications

• 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 fascinating yet highly reactive colorless gas, known for its potential to ignite spontaneously when in contact with air. This dramatic reaction produces a dense, white amorphous silica smoke, which is visually striking but poses a significant health risk due to possible severe burns. If flames or intense heat reach the gas cylinder before it is safely shut off, the result could be a catastrophic explosion. Any rapid or high-pressure release of silane might cause a delayed explosive event, highlighting the serious hazards it presents. Immediate action is crucial if there is a silane leak, even without visible flames, due to the severe danger it poses. Emergency response personnel must wear fire-retardant protective gear when dealing with silane hazards. Ensuring the gas supply remains active until the fire is fully controlled is of utmost importance.

Silane gas, distinguished by its distinct, pungent garlic-like odor, offers a clear warning of its presence. Known for its toxicity and high flammability, this gas provides unmistakable signs of potential danger.

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 exceptional SiH4 gas is a cornerstone within the electronics industry, playing a vital role in material production processes and extensively used in solar cell manufacturing. It truly stands as a keystone in the realm of modern technology.

 

Application
Silane and its derivatives are crucial components in a wide array of industrial and medical applications. They serve as coupling agents, enhancing the strength of composite materials by binding glass or carbon fibers to polymer matrices. Silane also improves adhesion in glass fiber coatings for polymers. In medical fields, it is instrumental in creating bio-inert layers on titanium implants. Additionally, silanes are effective water repellents, protecting masonry and aiding in graffiti control. In semiconductor manufacturing, silane's significant role involves depositing polycrystalline silicon layers on wafers. By the late 1990s, the semiconductor industry consumed nearly 300 metric tons of silane annually. The increasing demand for affordable solar photovoltaic modules has further increased silane's use, especially for depositing hydrogenated amorphous silicon on substrates like glass, metal, and plastic. Despite the PECVD process wasting about 85% of silane, ongoing recycling efforts aim to reduce waste and lessen the environmental impact of a-Si:H-based solar cells.

In advanced propulsion systems, silane plays a significant role, particularly in supersonic combustion ramjets, where it ignites fuel in compressed air streams. Its unique capability to combust with carbon dioxide offers potential for Mars-based engine fuel. However, the reaction yields solid byproducts like silicon dioxide and carbon, restricting its use to specialized applications, such as in liquid-fuel rockets employing liquid CO2, ramjets, or advanced reaction engines.

Company Information:
Since its founding in 2016, Jiangsu Deo Gas Co., Ltd. has rapidly emerged as a leading force in manufacturing, earning a prestigious reputation as a top-tier global exporter. Our diverse range of industrial, specialty, electronic, and medical gases serves as an essential utility across numerous industries, including chemical manufacturing, shipbuilding, electronics, and more. Our products are critical in sectors like optical fiber communications, machinery manufacturing, food and medical industries, solar photovoltaics, LED technology, aerospace, and comprehensive scientific research initiatives. We proudly offer a comprehensive selection of cylinder gases, electronic gases, and cutting-edge systems, featuring the latest advancements in gas tanks, panels, valves, and precision fittings. Our esteemed engineering services are available worldwide, and our unwavering mission is to build strong global partnerships by delivering innovative and reliable products, supported by specialized services and customized solutions.
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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.