Deep Expertise in Specialty Gas Systems for Semiconductor Furnace Equipment

As a cornerstone of the high-tech sector, the semiconductor industry depends on precision equipment — crystal growth vacuum furnaces, CVI furnaces, and SiC/TaC coating deposition furnaces are critical to material preparation and device packaging. The stability and precision of these systems rely heavily on ultra-high-purity specialty gas delivery. Shenzhen Wofly Technology Co., Ltd., a one-stop gas application system engineering provider, delivers customized gas distribution and supply solutions tailored to each furnace type.

01 Crystal Growth Vacuum Furnaces

Crystal growth demands exceptional gas purity — even trace impurities can cause defects. Wofly's systems use dual vacuum-melted 316L SS tubing (EP/BA grade, Ra ≤ 10 μin) to minimize particulate adsorption. All fabrication is conducted in cleanroom environments by personnel in full cleanroom attire. Tube cutting employs dedicated stainless steel cutters with deburring, chamfering, and high-purity nitrogen purging. Orbital autogenous TIG welding under argon shielding ensures leak-free, contamination-free joints. High-precision mass flow controllers with intelligent pressure regulation and integrated gas purification units maintain the ultra-high purity required for consistent crystal growth.

02 CVI Vapor Deposition Furnaces

Operating at temperatures up to 2,100°C, CVI furnaces require exceptional gas flow stability and uniformity. Wofly designs corrosion-resistant piping systems with carbon steel (powder-coated) or stainless steel supports — mechanically cut, chamfered, and anti-corrosion treated. Integrated gas routing shortens delivery paths and reduces residence time, while precision flow control systems accurately regulate precursors such as propylene and methane to match complex CVI process curves. All seals use stainless steel or nickel gaskets — non-metallic gaskets are strictly prohibited — eliminating high-temperature leakage risks.

03 SiC & TaC Coating Deposition Furnaces

These furnaces operate at 1,500–2,000°C with aggressive precursor gases including hafnium tetrachloride, tantalum pentachloride, and methane. Wofly deploys EP-grade 316L SS piping with VCR metal face-seal fittings to eliminate dead space and enable thorough purge cleaning. Specialized vaporization units handle powdered precursors (TaCl₅, HfCl₄) with intelligent ratio control for precise methane/hydrogen flow matching (e.g., CH₄ 180 ml/min, H₂ 900 ml/min). Integrated GDS gas detection systems with emergency response linkage provide real-time safety monitoring.

One-Stop Lifecycle Service Wofly's service spans the full project lifecycle: site survey and process analysis, custom system design, prefabrication (max 12 m welded sections, supported every 3 m during transport), on-site installation, pressure/leak/particle/purity testing, and ongoing calibration and maintenance. Every system is built to semiconductor-industry standards.

As semiconductor technology advances, Wofly remains committed to intelligent, precision-grade specialty gas solutions — helping customers worldwide achieve safer, more reliable, and higher-performance furnace operations.