Air Liquide to build gas plants for SK Hynix’s US chip facility - gasworld

Air Liquide, a leading industrial gas company, has announced plans to invest over $170 million in two gas production plants in Indiana to supply ultra-pure gases for SK Hynix's first U.S. semiconducto... Read original →

SK Hynix’s U.S. advanced packaging and HBM facility isn’t just capacity relocation—it’s a geopolitical hedge. Ultra-pure gases, the lifeblood of semiconductor cleanrooms, now demand localized supply chains to ensure yield stability. Air Liquide’s $170M investment signals a strategic shift: gas purity infrastructure is becoming as critical as lithography tools. Competitors like Linde and Taiyo Nippon Sanso must rapidly build redundant U.S. capacity or risk exclusion from next-gen 2.5D/3D packaging ecosystems. Fueled by CHIPS Act subsidies, America’s Midwest will soon host a clustered support base for gases, chemicals, and services—but at soaring compliance costs that squeeze Korean margins. Crucially, with HBM4 on the horizon, ppt-level purity requirements will elevate industrial gas suppliers to gatekeeper status, surpassing even some traditional materials vendors in influence.