High Purity Silanes Gas for Semiconductor Manufacturing 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, a seemingly humble yet immensely powerful colorless gas, captures attention with its highly reactive nature, capable of igniting spontaneously upon mere exposure to air. This reaction orchestrates a vivid spectacle of dense, white amorphous silica smoke-a breathtaking sight, albeit fraught with considerable health risks, including the potential for severe, life-threatening burns. If flames or extreme heat reach the gas cylinder before it can be safely deactivated, the consequences could be catastrophic, resulting in a devastating explosion. The rapid or high-pressure release of silane may precipitate a delayed explosion, highlighting the severe danger it presents. Any silane leak demands immediate action, irrespective of visible combustion, due to the grave threat it poses. Emergency response teams must be equipped with fire-retardant protective clothing when addressing such hazards. It is crucial to maintain the gas supply's operation until the fire is completely extinguished.

Silane gas, notorious for its toxic and highly flammable properties, is immediately recognizable by its distinctive, pungent garlic-like odor, offering an unmistakable 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 exceptional SiH4 gas is a cornerstone within the electronics industry, playing a pivotal role in material production processes and enjoying widespread application in the manufacture of solar cells-a true linchpin in contemporary technology.

 

Application
Silane and its derivatives are crucial in an extensive range of industrial and medical applications. As coupling agents, they significantly enhance composite material strength by effectively bonding glass or carbon fibers to polymer matrices. Silane also improves adhesion in glass fiber coatings for polymers. In the medical realm, it contributes to the fabrication of bio-inert layers on titanium implants. Furthermore, silanes serve as potent water repellents, protecting masonry and aiding in graffiti control. Within semiconductor manufacturing, silane's role is indispensable for depositing polycrystalline silicon layers on wafers. By the late 1990s, the semiconductor industry was utilizing nearly 300 metric tons of silane annually. The burgeoning demand for cost-effective solar photovoltaic modules has further escalated silane's usage, especially for depositing hydrogenated amorphous silicon on substrates such as glass, metal, and plastic. Despite the PECVD process squandering about 85% of silane, ongoing recycling efforts strive to curtail waste and mitigate the environmental impact of a-Si:H-based solar cells.

In the realm of advanced propulsion systems, silane emerges as a pivotal component, particularly within supersonic combustion ramjets, where it initiates fuel combustion in compressed air streams. Its unparalleled ability to combust alongside carbon dioxide opens avenues for potential Mars-based engine fuels. However, the solid byproducts of this reaction, such as silicon dioxide and carbon, limit its applicability to specialized contexts, including liquid-fuel rockets utilizing liquid CO2, ramjets, or advanced reaction engines.

Company Information:
Since its founding in 2016, Jiangsu Deo Gas Co., Ltd. has rapidly established itself as a trailblazer in manufacturing, earning a prestigious reputation as a leading global exporter. Our expansive portfolio of industrial, specialty, electronic, and medical gases provides essential utility across a vast array of industries such as chemical manufacturing, shipbuilding, electronics, and beyond. Our products are integral to sectors including optical fiber communications, machinery manufacturing, food and medical industries, solar photovoltaics, LED technology, aerospace, and comprehensive scientific research endeavors. We take pride in offering a comprehensive selection of cylinder gases, electronic gases, and state-of-the-art systems, featuring the latest advancements in 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, supported 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.