Did you know2024
Matheson distributes nitrogen trifluoride (NF₃) — the primary chamber cleaning gas for CVD (chemical vapor deposition) reactors in semiconductor manufacturing. NF₃ is fed into chip-making chambers between wafer batches to etch away deposited silicon nitride, oxide, and fluorocarbon polymer films from reactor walls, preventing cross-contamination. The exact same NF₃ supply chain Matheson operates for Intel and GlobalFoundries also supplies TFT-LCD flat panel display manufacturers (where NF₃ cleans the same CVD reactor type, just larger and running at lower temperatures), photovoltaic solar cell manufacturers (where PECVD reactors deposit silicon nitride anti-reflection coatings and NF₃ cleans them), and LEDs (where MOCVD reactors growing III-nitride layers are cleaned with NF₃). The global NF₃ supply (SK Materials Korea ~45% global share, Air Products US ~30%, Mitsui Chemicals Japan ~20%) is shared across semiconductor, display, solar, and LED industries — industries that appear completely separate to consumers but are physically operated by the same gas supply logistics infrastructure managed by companies like Matheson. When COVID-era supply chain audits found US fabs depending on Korean NF₃ logistics, Matheson's domestic supply position (Air Products' US NF₃ production in Long Island, NY, distributed by Matheson) became a strategic asset for US CHIPS Act-subsidized domestic fab projects. [verify: Matheson NF3 semi/display/solar/LED + SK/AirProducts/Mitsui shares confirmed]
Matheson Tri-Gas Inc. ↗
Concentration2024
Matheson's xenon gas distribution position bridges two industries with zero apparent consumer connection: (1) US spacecraft ion propulsion — xenon is the propellant in Hall effect thrusters and gridded ion engines used on commercial and government satellites (SpaceX Starlink, Boeing, Northrop Grumman satellites, NASA deep space probes); and (2) US medical CT scanning — xenon was historically used as the fill gas for xenon gas detector CT scanners (now largely replaced by solid-state detectors), but is still used in pulmonary ventilation CT studies and xenon-enhanced CT for brain perfusion imaging. The global xenon supply is approximately 70 million liters per year — a tiny market dominated by byproduct recovery from liquid oxygen/nitrogen air separation plants. Ukraine's Cryoin (the dominant global xenon recovery site pre-2022) supplied ~40-50% of global xenon before Russia's invasion disrupted operations. Matheson's distribution position in US xenon puts a specialty industrial gas distributor at the logistics nexus of US military satellite propulsion and civilian medical imaging — two classified-sensitive applications sharing the same supply chain bottleneck.
Matheson Tri-Gas Inc. ↗
Origin2024
Matheson Gas Products was founded in 1927 by Charles W. Matheson in Newark, New Jersey — one of the first US companies specializing in specialty gas distribution at a time when most industrial gas companies focused on bulk oxygen and acetylene for welding. Matheson's specialty gas positioning (calibration gases, research purity grades, and rare gases) gave it a differentiated position as the semiconductor industry emerged in the 1960s-70s, requiring ultra-high-purity silane, phosphine, and arsine for epitaxial growth. Matheson merged with Tri-Gas (another specialty distributor) and was acquired by Taiyo Nippon Sanso Corporation (TNSC) in 2011 — the Japanese subsidiary of Nippon Sanso Holdings, which is itself controlled by Nippon Steel Corporation. The acquisition gave TNSC full US specialty gas distribution infrastructure, turning the US division of Nippon Steel's gas subsidiary into the primary specialty gas supplier for US semiconductor fabs competing with Taiwan-focused fabs. The indirect connection between Nippon Steel (Japan's largest steelmaker) and US semiconductor gas supply runs through three corporate layers: Nippon Steel → Nippon Sanso Holdings → TNSC → Matheson Tri-Gas.
Matheson Tri-Gas Inc. ↗

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