High Purity Silanes Gas Specialty for Advanced 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

Essential Information

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

Transport Package

Cylinder

Trademark	Deo
HS Code	2812190091

Product Overview

Product Details:

Silane gas, although plain in appearance as a colorless gas, is a powerhouse of reactivity. When exposed to air, it bursts into flame spontaneously, creating a mesmerizing spectacle of thick, white amorphous silica smoke. This fascinating reaction, however, harbors serious health risks due to potential severe burns that can be life-threatening. If flames or intense heat reach the gas cylinder before it's safely shut down, an explosion of disastrous proportions may ensue. Additionally, a swift or high-pressure release of silane can set off a delayed explosive event, highlighting the extreme risks involved. Any silane leak demands immediate action, irrespective of visible combustion, due to the severe threat it poses. Emergency responders must be equipped with fire-retardant protective gear to handle such dangerous scenarios. Ensuring the gas supply remains on until the fire is completely extinguished is crucial.

Identified by its strong, pungent garlic-like odor, silane gas is both toxic and highly flammable, serving as a clear alert of its presence.

Physical Characteristics

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

Standard Technical Specifications

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 is a cornerstone in the electronics realm, crucial for material production processes and extensively utilized in solar cell manufacturing, reflecting its vital role in modern technological advancements.

 

Applications
Silane and its derivatives play a pivotal role in a wide array of industrial and medical applications. As coupling agents, they dramatically enhance the strength of composite materials by bonding glass or carbon fibers to polymer matrices. Silane also boosts adhesion in glass fiber coatings for polymers. In medical contexts, it is instrumental in formulating bio-inert layers on titanium implants. Furthermore, silanes serve efficiently as water repellents, protecting masonry and aiding in graffiti control. Within semiconductor manufacturing, silane is indispensable for depositing polycrystalline silicon layers on wafers. By the late 1990s, the semiconductor sector consumed nearly 300 metric tons of silane annually. The surge in demand for cost-efficient solar photovoltaic modules has propelled silane's usage, especially for depositing hydrogenated amorphous silicon on substrates like glass, metal, and plastic. Although the PECVD process results in approximately 85% of silane being wasted, ongoing recycling initiatives strive to reduce waste and lessen the environmental footprint of a-Si:H-based solar cells.

In cutting-edge propulsion systems, silane is indispensable, particularly in supersonic combustion ramjets, where it ignites fuel within compressed air streams. Its unique ability to combust with carbon dioxide holds promise for Mars-based engine fuel innovations. However, the reaction's solid by-products, such as silicon dioxide and carbon, limit its use to specialized applications, including liquid-fuel rockets using liquid CO2, ramjets, or advanced reaction engines.

About the Company:
Founded in 2016, Jiangsu Deo Gas Co., Ltd. has rapidly emerged as a leader in manufacturing, earning a prestigious reputation as a top-tier global exporter. Our diverse range of industrial, specialty, electronic, and medical gases is crucial across numerous industries such as chemical manufacturing, shipbuilding, electronics, and more. Our offerings are vital to sectors like optical fiber communications, machinery manufacturing, the food and medical industries, solar photovoltaics, LED technology, aerospace, and extensive scientific research projects. We proudly provide 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 respected engineering services reach globally, underpinned by our steadfast mission to build strong global alliances by delivering innovative, dependable products, supported by specialized services and tailored solutions.
55d7c93c

Detailed Photos

Company Profile

Packaging & Shipping

Certifications

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.