Hastelloy C-22

Hastelloy Alloys Play a Key Role in Harsh Chemical Environments

AI semiconductors demand faster processing and precision engineering. Their production involves etching, deposition, and cleaning—steps that expose equipment to harsh chemical environments. These include acidic gases, high-pressure plasma, and high-temperature conditions.

Under these extreme environments, standard metals wear quickly or corrode. To combat this, nickel-molybdenum alloys like Hastelloy C-22 and Hastelloy C-276 are widely adopted. These alloys provide exceptional corrosion resistance, making them ideal for semiconductor manufacturing equipment.


Why Hastelloy C-22 and C-276 Are Critical

Hastelloy C-22 and C-276 are primarily composed of nickel (Ni) and molybdenum (Mo), with added chromium (Cr), iron (Fe), and cobalt (Co). This composition gives them outstanding durability even in high-temperature oxidation and acidic conditions. They maintain long-term stability when exposed to hydrofluoric, hydrochloric, and sulfuric acids.

These alloys are used in gas lines, chamber liners, and deposition chambers in etching systems. Because AI chips require ultra-fine etching on silicon wafers, material performance directly impacts precision and yield. Hastelloy’s stability also prevents metal contamination caused by ion erosion, improving wafer cleanliness and reliability.


The Rising Demand for Corrosion-Resistant Metals

As AI chip demand grows, manufacturers are upgrading to high-speed, high-density production lines. Traditional materials like stainless steel or aluminum fail under such conditions. In contrast, nickel-based alloys offer a durable solution.

Global semiconductor leaders, including foundries and memory makers, are adopting these materials to boost productivity. These alloys reduce maintenance frequency and extend component lifespans, increasing production uptime.

Dong-A Special Metals actively supplies these high-performance materials. Through a robust supply chain, we deliver nickel-based alloys for semiconductor tools. Additionally, we support AI-era infrastructure with sustainable solutions through scrap recycling and advanced processing.

As AI and semiconductor industries move toward more complex processing, demand for high-durability metals will continue to rise. Dong-A Special Metals will remain committed to providing innovative, corrosion-resistant solutions.




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