LG Chem has begun mass-producing and supplying semiconductor strippers to Amkor Technology, marking the South Korean chemical producer’s first entry into the semiconductor stripper market. The customized material, developed for Amkor’s new production line, reduces the time required to remove photoresist and process residue by approximately 50% compared with existing products, according to LG Chem.
The 50% figure requires some context. It does not mean that Amkor’s entire semiconductor production output will increase by half. It refers specifically to the time needed for the stripper to remove photoresist and remaining process materials during a particular cleaning step.
Even so, cutting the duration of that step can improve equipment utilization and shorten processing cycles in an advanced packaging line. In semiconductor manufacturing, saving time without compromising cleanliness, yield or material compatibility can have considerable operational value.
Semiconductor strippers are specialized process chemicals used after circuit patterning to remove photoresist and other residues from semiconductor substrates. As circuit dimensions become smaller and packaging structures grow more complex, incomplete removal can interfere with later processing and affect product yield, reliability and overall chip quality.
The product may receive less public attention than photoresists, wafers or advanced packaging equipment, but it operates in a process where even trace contamination can be expensive. A stripper must remove unwanted material efficiently without damaging metals, dielectric layers or other sensitive structures already present on the substrate.
LG Chem is not entering the field entirely from scratch. The company used the formulation expertise and customer-support experience accumulated through its display stripper business to develop its first semiconductor product.
The material also passed Amkor’s qualification process before entering mass production. Semiconductor chemicals generally require extensive customer testing for cleaning performance, corrosion, contamination, stability, batch consistency and compatibility with specific production conditions.
Winning approval from a major global packaging and testing company with its first semiconductor stripper gives LG Chem something more valuable than an initial order: a qualified position inside a customer’s manufacturing process.
Amkor is one of the world’s leading outsourced semiconductor assembly and test, or OSAT, providers, supplying packaging and testing services to major chipmakers. LG Chem tailored the stripper to Amkor’s new line rather than offering only a standard, broadly applicable formulation.
That distinction illustrates how electronic chemicals differ from conventional commodity chemicals. Polyethylene, PVC and basic intermediates are often sold largely on price, availability and scale. Semiconductor materials compete through purity, process compatibility, technical support and supply consistency.
Once a chemical has been qualified and integrated into a production line, customers are usually reluctant to replace it without a compelling reason. A change can require another lengthy verification process and may introduce yield or reliability risks.
Electronic chemicals are sold in much smaller volumes than commodity petrochemicals, but they can offer higher barriers to entry, stronger customer retention and greater value per unit.
The timing is also significant. Investment in artificial intelligence infrastructure and rapidly rising demand for high-bandwidth memory are driving the expansion of advanced semiconductor packaging. As packaging density and structural complexity increase, manufacturers require more sophisticated cleaning, bonding, insulating and substrate materials.
LG Chem has identified semiconductor materials as a major component of its electronics-materials growth strategy. In addition to strippers, it is expanding a packaging portfolio that includes copper-clad laminates, die-attach films and photo-imageable dielectric materials. The company has said it intends to more than double the size of its electronics-materials business.
The strategy also reflects pressure on LG Chem’s traditional petrochemical operations. Asian capacity growth in olefins, polymers and other commodity products has weakened margins across the industry. Semiconductor chemicals provide a possible route into markets where technology qualification and customer integration matter more than production scale alone.
LG Chem is therefore pursuing more than revenue from a single stripper product. It is seeking an entry point through which it can sell a broader package of materials into advanced semiconductor packaging lines.
A successful relationship with Amkor could create opportunities to introduce additional adhesives, dielectric products and process chemicals. Over time, that could move LG Chem from supplying an individual material to providing a more integrated advanced-packaging portfolio.
There are still limits to what can be concluded from the announcement. LG Chem has not disclosed the contract value, production volume, pricing or expected revenue contribution. The claimed 50% reduction was achieved with a customized product on Amkor’s new line and should not automatically be treated as a universal result for every semiconductor process.
The launch is therefore unlikely to transform LG Chem’s financial performance immediately. Its strategic value lies in demonstrating that the company can convert display-material expertise into semiconductor-grade chemicals and meet the qualification standards of a major international customer.
