Australia could supply specialty gas

Australia’s opening is not about wafers or fabs. It is about helium. ABC News reported on May 18 that the gas at the center of its segment was helium, after Iranian missile strikes in March hit Qatar’s Ras Laffan gas plant and threatened about one-third of global supply. ABC said spot prices have doubled since then, while long-term contract rates have also moved higher. That matters because helium sits upstream of chipmaking but inside critical semiconductor processes. Arup George, an engineer at the University of New South Wales, told ABC the gas is in high demand because it is used in the manufacture of microchips and semiconductors, and is therefore tied to data-center and AI buildouts. ### Why is helium a semiconductor story at all? (abc.net.au) Helium is not a niche add-on in advanced chip production. George wrote in an April 1 essay for ASPI’s Strategist that extreme ultraviolet lithography systems used for leading-edge chips cannot operate without helium, and that the gas is also used in cooling, purging and leak detection across semiconductor production. (abc.net.au) BOC, part of Linde, says excimer laser gases are widely used in deep ultraviolet photolithography and that large amounts of hydrogen are required in EUV lithography, underscoring how gas supply sits directly inside patterning and cleaning steps rather than outside the fab gate. The practical point for fabs is straightforward: a gas problem can become a yield problem or a schedule problem. (aspistrategist.org.au) If a supplier goes offline or purity changes, chipmakers have to manage process stability, tool uptime and qualification work before output returns to normal. That inference is supported by the role these gases play in lithography, cleaning and leak detection. ### Why does Australia come into this now? (boc.com.au) Australia’s case rests on geology and existing gas infrastructure. ABC reported that helium can be mined as a by-product of liquefied natural gas extraction, and that experts see export potential for Australia. Geoscience Australia said in its work on the Australian LNG economy that the country has obtained helium-content data from about 800 Australian natural gases and that one helium plant operated in Darwin using LNG-linked feed gas. (boc.com.au) The agency’s research found broad opportunities to recover helium from LNG processing streams. George wrote that Australia is one of the few countries that could offer a more reliable helium supply because helium extraction is a proven by-product process tied to natural-gas and LNG operations. (abc.net.au) He also said researchers at Geoscience Australia found in 2018 that 14 of 18 operating or proposed LNG projects had waste-gas helium concentrations above the threshold considered suitable for commercial extraction. (data.gov.au) ### Why do chipmakers care about supplier diversification this far upstream? The 2022 neon shock and the 2026 helium disruption have reinforced the same lesson: materials concentration can become a semiconductor bottleneck. Helium supply is concentrated among a small number of producers, and George wrote that the United States and Qatar together supply nearly 90% of world output. (aspistrategist.org.au) For fabs, adding a trusted source can reduce dependence on one region and lower the odds that a geopolitical or plant outage becomes a process interruption. It does not remove qualification work, but it can give procurement and process engineers more than one path to keep tools running. That is an inference from the supply concentration and the gas’s role in production. (aspistrategist.org.au) ### What has to happen for Australia to matter? Australia does not become a semiconductor supplier just by having helium in the ground. ABC reported that there are calls for helium to be added to the country’s critical minerals list to support industry expansion. The Australian government’s current critical minerals and strategic materials publication, updated February 20, 2024, says those lists are reviewed at least every three years and can be updated in response to strategic, technological and economic changes. (abc.net.au) So the next step is policy and project execution: extraction, purification, contracting and customer qualification. (abc.net.au) If those pieces move, Australia’s role would be in one of the least visible but most consequential layers of the chip supply chain. (industry.gov.au)