LG Chem is accelerating its semiconductor business expansion strategy with its first entry into the semiconductor stripper market.

LG Chem announced on the 5th that it has agreed to supply “semiconductor strippers” to Amkor, a U.S. semiconductor outsourced assembly and test (OSAT) company. Amkor is a global leading player in the back-end process sector, providing semiconductor packaging and test services to major semiconductor companies.

A stripper is a key process material used to remove photoresist (PR) and residues remaining on the substrate after semiconductor circuit formation. In advanced nodes, where circuit miniaturization has progressed, residue removal performance has a direct impact on product yield and reliability. As a result, stripper technology is regarded as a major factor that determines semiconductor quality. LG Chem entered the semiconductor stripper market based on the technology capabilities and customer-response experience accumulated through its display stripper business. LG Chem stated that “from its first semiconductor stripper product, it has proven its competitiveness by passing the stringent technology verification requirements of a global OSAT company.” LG Chem is strengthening technological barriers in the semiconductor materials business, centered on its Advanced Materials Company. Key products include DAF (Die Attach Film), a chip bonding film; CCL (Copper Clad Laminate), a core raw material for printed circuit boards (PCBs); and PID (Photo Imageable Dielectric), a photosensitive insulating material.

The semiconductor stripper product being supplied this time is described as a customized stripper optimized for Amkor’s new line environment. According to LG Chem, it significantly improves process efficiency by reducing the time required to remove photoresist and residues by 50% compared with existing products. Kim Dong-choon, President of LG Chem, said, “As investment in artificial intelligence (AI) expands and demand for high bandwidth memory (HBM) increases, investment in advanced semiconductor packaging is growing, further elevating the importance of high-performance process materials,” adding, “Through cooperation with Amkor, a world-class back-end company, LG Chem will continue to strengthen its competitiveness in customized materials optimized for customers’ processes.”

Recently, LG Chem has been accelerating efforts to strengthen its semiconductor materials business. In March, it announced a strategy to more than double its electronic materials business and has been seeking to reinforce its portfolio around semiconductor packaging materials, including its core specialty product lines such as DAF, CCL, and PDI. Based on the reinforcement of its semiconductor materials business, the company has also recently reset its future direction toward “qualitative growth” focused on high value-added products and profitability.

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