Other specifications of packaging can be provided according to customer requirements

Electronic Grade Dichlorosilane DCS 99.99% Ultra-High Purity

We proudly supply Dichlorosilane (SiH2Cl2), a premium electronic-grade precursor vital for modern semiconductor fabrication. Manufactured to an ultra-high purity of 99.99%, our DCS is engineered to meet the extremely tight tolerances of epitaxial growth and chemical vapor deposition processes. With a dedicated capacity of 200 tons/year, we provide consistent and reliable supply for wafer fabs and electronics manufacturers worldwide.

Electronic Grade Dichlorosilane DCS 99.99% Ultra-High Purity

Technical Specifications

 

1. Basic Information

 

Item Specification
Product Name Dichlorosilane
Formula SiH2Cl2
CAS NO 4109-96-0
Purity 99.99%
Capacity 200 T/Y
Package 47L Cylinder, CGA636 Valve

2. Physical and Chemical Properties

 

Property Value
Appearance and properties Colorless, highly flammable and toxic gas
Melting point (°C) -122
Boiling point (°C) 8.3
Relative density (water = 1) 1.22 g/cm³ (Liquid at 0°C)
Flash point (°C) -28
Explosion limits (% V/V) 4.1 - 98.8
Solubility Reacts violently with water; soluble in benzene and ether

Packaging & Delivery

 

Given the highly reactive nature of Dichlorosilane, safety and purity retention are our top priorities:

  • Cylinder Specifications: High-quality 47L seamless steel cylinders designed for hazardous electronics gases.
  • Valve Type: Equipped with industry-standard CGA636 valves, ensuring completely leak-proof connections and preventing atmospheric contamination.
  • Delivery: Strict adherence to international dangerous goods (DG) transportation regulations, with expert handling from factory to your facility.

Why Choose Us?

 

  • Electronic Grade Precision: Achieving 99.99% purity means exceptionally low metallic and moisture impurities, directly contributing to higher wafer yields and defect-free semiconductor layers.
  • CGA Standard Compliance: Using specialized CGA636 gas cylinder valves ensures seamless integration into your existing gas delivery systems.
  • Expert Handling: Dichlorosilane requires highly specialized manufacturing and filling environments. Our state-of-the-art facility is purpose-built to handle these electronic specialty gases safely.

Applications

 

Dichlorosilane (DCS) is exclusively utilized in high-tech and semiconductor environments:

  • Silicon Epitaxy: Used as a highly reactive silicon source for growing single-crystal silicon epitaxial layers at lower temperatures.
  • CVD/PECVD: The preferred precursor for depositing uniform, high-quality Silicon Nitride (Si3N4) and Silicon Dioxide (SiO2) insulating layers.

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