High Purity Silanes Electronics Gas 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, an unassuming yet potent colorless gas, captivates with its highly reactive nature that leads to spontaneous combustion upon air contact. This reaction results in a dramatic display of dense, white amorphous silica smoke, a sight to behold but bearing significant health risks due to the potential for severe, life-threatening burns. Should flames or extreme heat reach the gas cylinder before deactivation, the outcome could be a disastrous explosion. The rapid or high-pressure release of silane may trigger a delayed explosive event, underscoring the grave danger it poses. Immediate attention to any silane leak is imperative, regardless of visible combustion, given the serious threat it represents. Emergency response teams must be equipped with fire-retardant protective clothing when confronting such hazards. It is paramount to ensure the gas supply remains active until the fire is fully subdued.

Silane gas, with its toxic, highly flammable characteristics, is easily identified by its distinct, pungent garlic-like aroma, offering a clear warning of its presence.

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 premier SiH4 gas stands as a vital component within the electronics industry, serving as an essential element in material production processes and finding extensive use in solar cell manufacturing-a true keystone in modern technology.

 

Application
Silane and its derivatives are indispensable in a broad spectrum of industrial and medical applications. As coupling agents, they significantly bolster composite material strength by bonding glass or carbon fibers to polymer matrices. Silane also enhances adhesion in glass fiber coatings for polymers. In medical settings, it aids in crafting bio-inert layers on titanium implants. Moreover, silanes serve as effective water repellents and protect masonry while aiding in graffiti control. Within semiconductor fabrication, silane's role is crucial for depositing polycrystalline silicon layers on wafers. By the late 1990s, the semiconductor industry was utilizing nearly 300 metric tons of silane annually. The growing demand for cost-effective solar photovoltaic modules has further amplified silane's use, particularly for depositing hydrogenated amorphous silicon on substrates like glass, metal, and plastic. Despite the PECVD process wasting about 85% of silane, ongoing recycling efforts strive to reduce waste and mitigate the environmental impact of a-Si:H-based solar cells.

In advanced propulsion systems, silane is a key player, especially within supersonic combustion ramjets, where it ignites fuel in compressed air streams. Its unique combustion capability with carbon dioxide presents potential for Mars-based engine fuel. However, the reaction's solid byproducts, such as silicon dioxide and carbon, confine its utility to specialized applications, including liquid-fuel rockets using liquid CO2, ramjets, or advanced reaction engines.

Company Information:
Since its inception in 2016, Jiangsu Deo Gas Co., Ltd. has swiftly positioned itself as a pioneering force in manufacturing, establishing a distinguished reputation as a premier global exporter. Our extensive portfolio of industrial, specialty, electronic, and medical gases provides indispensable utility across myriad industries such as chemical manufacturing, shipbuilding, electronics, and beyond. Our products are integral to sectors like optical fiber communications, machinery manufacturing, food and medical industries, solar photovoltaics, LED technology, aerospace, and comprehensive scientific research endeavors. We take pride in offering an all-encompassing selection of cylinder gases, electronic gases, and state-of-the-art systems, boasting the latest in advanced gas tanks, panels, valves, and precision fittings. Our esteemed engineering services span the globe, and our unwavering mission is to forge robust global partnerships by delivering cutting-edge, reliable products, backed by specialized services and bespoke 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.