Superior Silanes Electronics Gas for High-Performance 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 colorless, highly reactive gas that spontaneously ignites upon exposure to air, creating dense, white amorphous silica smoke. This dramatic ignition is hazardous, posing significant health risks like life-threatening burns. If flames or extreme heat reach the cylinder before cutting off the valve, a catastrophic explosion might occur. Rapid or high-pressure silane release could lead to an explosive event after a delay, presenting grave dangers. Immediate response to any silane leak is crucial, even without initial combustion, due to its serious threat potential. Emergency personnel must wear fire-retardant protective gear in such situations. Never attempt to cut off the gas supply until the fire is completely controlled.

Silane gas, recognized by its pungent garlic-like odor, is a colorless, toxic, and highly flammable substance.

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 premium SiH4 gas is indispensable in the electronics industry, serving as a cornerstone in diverse material production processes and extensively used in solar cell fabrication.

 

Application
Silane and its derivatives are crucial in diverse industrial and medical sectors. They act as coupling agents, enhancing the strength of composite materials by bonding glass or carbon fibers to polymer matrices. Silane is used in coating glass fibers to improve polymer adhesion. In medicine, it helps create bio-inert layers on titanium implants. Additionally, silanes serve as water repellents, protect masonry, and aid in graffiti control. In semiconductor fabrication, silane is vital for depositing polycrystalline silicon layers on wafers. By the late 1990s, approximately 300 metric tons were used annually in the semiconductor industry. The growing production of affordable solar photovoltaic modules has expanded silane applications, particularly in depositing hydrogenated amorphous silicon on substrates like glass, metal, and plastic. Despite the PECVD process's inefficiency, wasting about 85% of silane, continuous recycling efforts aim to minimize waste and reduce the environmental impact of a-Si:H-based solar cells.

In advanced propulsion systems, silane plays a pivotal role, especially in supersonic combustion ramjets, assisting in igniting fuel within compressed air streams. Its ability to combust with carbon dioxide makes it a promising fuel candidate for Mars-based engines. However, the reaction produces solid byproducts such as silicon dioxide and carbon, limiting its use to specific applications like liquid-fuel rockets using liquid CO2, ramjets, or advanced reaction engines.

Company Information:
Founded in 2016, Jiangsu Deo Gas Co., Ltd. has swiftly risen as a trailblazer in manufacturing, known for being a top-tier global exporter. Our extensive range of industrial, specialty, electronic, and medical gases is essential across numerous sectors, including chemical, shipbuilding, electronics, and more. Our solutions are vital to industries such as optical fiber communications, machinery manufacturing, food and medical sectors, solar photovoltaics, LED technology, aerospace, and extensive scientific research. We proudly offer a full spectrum of cylinder gases, electronic gases, and state-of-the-art systems, featuring the latest gas tanks, advanced panels, innovative valves, and precision fittings. Our esteemed engineering services are available worldwide. Our enduring mission is to forge robust global partnerships by delivering cutting-edge, 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.