Octafluorocyclobutane (C₄F₈) – semiconductor etch gas

Description

1. Product Overview

Octafluorocyclobutane (C₄F₈) is a high-purity fluorocarbon gas widely utilized as a critical etching agent in advanced semiconductor manufacturing processes. Primarily deployed in plasma etching applications, it enables precise pattern transfer for microelectronic device fabrication, particularly in dielectric and silicon-based layers. Its key value lies in delivering superior etch selectivity, uniformity, and process stability—essential for high-yield wafer production. Strategically, C₄F₈ is indispensable in the global semiconductor supply chain, supporting the scaling of next-generation chips and enabling continued innovation in electronics, telecommunications, and data infrastructure.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Octafluorocyclobutane (C₄F₈), perfluorinated cyclic hydrocarbon
• Purity Level: ≥ 99.999% (5N grade, semiconductor-grade purity)
• Physical State: Compressed liquefied gas
• Color & Odor: Colorless, odorless
• Molecular Weight: 200.03 g/mol
• Boiling Point: Approx. -6°C
• Density: ~1.6 g/cm³ (liquid phase)
• Moisture Content: ≤ 1 ppm (strict moisture control for semiconductor use)
• Packaging Options:
  • High-pressure steel cylinders (standard and custom sizes)
  • ISO tank containers for bulk transport
• Shelf Life: Stable under recommended storage conditions (cool, dry, sealed environment); typically 12–24 months

3. Core Industrial Applications

Octafluorocyclobutane is extensively used across high-tech manufacturing sectors, particularly:

• Semiconductor Fabrication:
  Utilized in plasma etching of silicon dioxide (SiO₂), silicon nitride (Si₃N₄), and low-k dielectric materials in integrated circuit production.
• Microelectronics & MEMS:
  Enables precise micro-patterning for microelectromechanical systems and advanced chip architectures.
• Flat Panel Display Manufacturing:
  Applied in etching processes for TFT-LCD and OLED panel production.

Performance Advantages:

• Delivers high etch selectivity and anisotropy, enabling finer geometries and tighter tolerances
• Produces polymer-forming radicals, enhancing sidewall passivation and pattern fidelity
• Offers process stability and repeatability, reducing defect rates and improving yield
• Compared to alternative gases, C₄F₈ provides optimized plasma chemistry, balancing etch rate and profile control for advanced nodes

4. Competitive Advantages

• Exceptional Quality Consistency: Ultra-high purity with stringent impurity control ensures compliance with semiconductor-grade requirements
• Reliable Global Supply Chain: Scalable production capacity with consistent availability for high-volume fabs
• Advanced Logistics Capability: Safe and efficient delivery via certified gas cylinders and ISO tank systems, aligned with international transport standards
• Cost Efficiency: Competitive pricing through optimized production and bulk supply capabilities
• Environmental Considerations: Manufactured under controlled processes with adherence to environmental and safety regulations; supports responsible handling protocols
• Technical Support: Comprehensive documentation including COA, SDS, and process integration guidance; expert technical assistance available for process optimization

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): Bulk supply – 20 MT
• Loading Capacity: Approx. 20–22 MT per ISO tank container depending on specifications and regulatory limits