China Barium Acetate Supplier, Factories
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Verified mass manufacturing output lines from Yanxatech System Industries Limited (YANXA) certified to ISO 9001 and international safety standards.
Evaluating mass chemical manufacturing scale, cross-border demand drivers, sub-ppb purity control, and pricing dynamics in critical tech fabrication.
Technical Overview: Carbon Tetrafluoride (Tetrafluoromethane, CF4, CAS: 75-73-0, UN 1982) is an exceptionally stable perfluorocarbon representing the highest-volume dry plasma etching and chamber-cleaning gas globally. Operating as an indispensable feedstock across sub-7nm node logic chips, 3D NAND flash vertical trench etching, photovoltaic passivated emitter cell (PERC/TOPCon) texturing, and aerospace surface functionalization, mass availability directly influences semiconductor capital expenditure cycles.
CF4 serves as the primary fluorine atom donor in reactive ion etching (RIE) systems. In high-density plasma chambers, dissociation generates reactive CFx+ and F* radicals capable of volatilizing silicon, silicon dioxide (SiO2), silicon nitride (Si3N4), and tungsten films at angstrom-level precision.
International fab expansions in North America, East Asia, and Europe are transitioning from small 47L standard gas cylinder manifolds toward bulk Y-cylinders (440L) and high-volume ISO tube trailers, demanding mass manufacturers with resilient, integrated hydrogen fluoride upstream infrastructure.
Chamber walls accumulate inorganic dielectric residues during Chemical Vapor Deposition (CVD). CF4/O2 energetic gas mixtures enable in-situ dry cleaning, minimizing tool downtime, avoiding particulate re-deposition, and extending mean-time-between-cleans (MTBC).
Upstream vertical integration from raw fluorspar minerals to continuous cryogenic rectification delivers unmatched cost structure, purity consistency, and supply predictability.
China holds over 60% of the world’s refined fluorspar (CaF2) mineral processing operations. Domestic facilities synthesize Anhydrous Hydrogen Fluoride (AHF) on-site, isolating operations from intermediate spot commodity volatility and guaranteeing continuous baseline raw materials.
Utilizing proprietary catalytic fluorination of chlorodifluoromethane or direct reaction of elemental fluorine with high-density activated carbon, cutting-edge Chinese production plants achieve high single-pass yield (>94%) while reducing low-boiling byproduct isomers.
Eliminating critical micro-contaminants requires multi-stage low-temperature fractionation. Our production arrays run vacuum-jacketed dual columns to purge volatile O2, N2, CO, and trace halogenated carbons (CHF3, C2F6) below sub-part-per-million levels.
| Purity Grade | Assay (CF4) | Key Impurity Thresholds (O2, N2, H2O, CO2, Acidity) | Standard Packaging | Typical Volume Tier Pricing Reference (FOB China) |
|---|---|---|---|---|
| Industrial Grade (4N) | ≥ 99.99% | O2+N2 < 40 ppm, H2O < 5 ppm, CO2 < 10 ppm | 40L / 47L Seamless Steel Cylinders | Market Base $12.50 – $16.00 / kg |
| Solar / PV Grade (4.5N) | ≥ 99.995% | O2+N2 < 15 ppm, H2O < 2 ppm, Halocarbons < 10 ppm | 47L Cylinders / 440L Y-Cylinder | Volume Dynamic $15.50 – $19.50 / kg |
| Electronic Grade (5N) | ≥ 99.999% | O2 < 1 ppm, N2 < 2 ppm, H2O < 0.5 ppm, CO+CO2 < 0.5 ppm | Internal Polished / Passivated 47L & ISO Tanks | High Purity $22.00 – $28.50 / kg |
| Ultra-Pure VSLSI (5.5N) | ≥ 99.9995% | Total Impurities < 5 ppm; Metals < 100 ppt; Acidity < 0.1 ppm | High-Pressure DOT/ISO Spec Micro-conditioned | Contract Strategic Inquire per Fab Spec |
From cryogenic refrigeration cascades to advanced semiconductor node scaling, carbon tetrafluoride occupies critical high-performance nodes across global engineering.
Essential in the creation of microscopic electrical paths on silicon wafers. Mixed with oxygen and argon, CF4 selectively removes thin layers of silicon nitride and poly-silicon during photolithographic masking steps without degrading underlying photoresist polymers.
Operating under the ASHRAE designation R-14, pure CF4 possesses a boiling point of -128.1°C (-198.6°F). It acts as the final cryogenic stage refrigerant in multi-stage cascade refrigeration units designed for biomedical cryopreservation and aerospace simulation chambers.
Mass producers of ultra-pure silica glass and long-haul telecommunication optical fiber use CF4 as a precision fluorine dopant during preform vapor axial deposition (VAD) to fine-tune refractive index profiles and mitigate signal attenuation.
1. Decarbonization & F-Gas Abatement Technology: Because CF4 carries a high Global Warming Potential (GWP 7,380) and atmospheric persistence (~50,000 years), fabs are implementing high-efficiency point-of-use thermal and plasma scrubbers. Suppliers capable of offering circular reclaim, closed-loop packaging recovery, and traceable mass balances command significant competitive edge among tier-one global chipmakers.
2. Diversification of Geopolitical Sourcing: Global chip fabrication consortiums maintain a multi-source supplier matrix. Relying on integrated Chinese manufacturing clusters for merchant mass baseline volumes while utilizing localized regional gas blenders for final wafer delivery mitigates supply shock risk during global maritime or trade disruptions.
A rigorous, 5-stage quality governance model ensuring seamless Dangerous Goods compliance, spec matching, and zero-defect cylinder filling.
Aligning customer gas specs (5N/5.5N), trace moisture limit, and non-condensable gas tolerance via Gas Chromatography-Mass Spectrometry (GC-MS).
High-vacuum baking, internal micro-polishing, and cryogenic inert-gas purging to prevent surface adsorption of particulate matter.
Continuous automated filling monitored by multi-axis load cells, ensuring precise density balance and headspace volume stability.
Full-spectrum batch testing for moisture (Cavity Ring-Down Spectroscopy), acidities, and trace halocarbons prior to dispatch release.
UN-certified packaging, IMDG Class 2.2 maritime compliance, pre-cleared customs filings, and real-time transit tracking.
Authoritative technical clarification for procurement leads, safety engineers, and logistics directors.
Every production lot is provided with an audited Certificate of Analysis (COA) specifying trace parts-per-million/billion impurity assays. In addition, we deliver GHS-compliant Safety Data Sheets (SDS), Technical Data Sheets (TDS), Cylinder Hydrostatic Test Certifications, and full IMO/IMDG Class 2.2 Dangerous Goods paperwork.
Pricing is fundamentally driven by three variables: the domestic market price of acid-grade fluorspar/anhydrous hydrofluoric acid, localized electrical energy tariffs for cryogenic air separation and fluorination furnaces, and international shipping container availability. Long-term volume offtake agreements (3–12 months) provide price-hedging stability.
Yes. We configure gas cylinders with target valve fittings standard across target geographic destinations, including CGA 580 / CGA 320 for North America, DIN 477 No. 6 for Europe, and JIS B 8246 for Asian fabricators, utilizing diaphragm-sealed stainless-steel valves rated for high-purity service.
Because carbon tetrafluoride is chemically inert under ambient conditions, the gas itself does not decompose over time. Standard high-pressure seamless steel or aluminum cylinders carry a verified re-inspection interval of 5 to 10 years depending on national DOT/TC/ISO regulations.
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