At a glance
| Booth | L0816 |
| Country | KR |
| Website | www.dongjin.com |
Company profile
Dongjin Semichem Co., Ltd. manufactures and sells display and semiconductor materials, materials for renewable-energy applications including Li-ion rechargeable batteries and fuel cells, and foaming agents. Its display and semiconductor products include chemical-process materials such as photoresists, Bottom Anti-reflective Coating (BARC), Spin-on-Carbon (SOC), Chemical Mechanical Polishing (CMP) slurries, wet chemicals, developer, colored resist, organic insulating material and column spacers, supporting the advancement and integration of electronic materials. Established in 1967, the company was the first in Korea to develop and domestically produce PVC and rubber foaming agents and began exporting foaming agents in 1973. It established an overseas production plant in Indonesia in 1992, expanded the Sihwa plant in 1995, became a leading global producer of foaming agents and exports foaming-agent products worldwide under the UNICELL brand. Building on its foaming-agent expertise, the company invested in display and semiconductor materials in the early 1980s, entered semiconductor materials through epoxy molding compounds and semiconductor packaging materials, and developed photoresist for precise micro-patterning of silicon wafers. It became the first Korean and fourth international company to produce photoresist. The Balan plant enabled large-scale industrial production of electronic materials in 1995; a Taiwan subsidiary was established in 1999, the Balan plant added a second production facility in 2000, and the company lists plants in Taiwan (1999), Beijing (2004), Qidong (2006), Chengdu (2009), Hefei (2010), Xi'an (2012), Ordos (2013), Chongqing (2014), Huizhou (2015), Fuzhou (2016), Sichuan (2017), Nigxia (2018) and Wuhan (2018). Its renewable-energy materials work includes hydrogen fuel-cell and Li-ion battery materials; its membrane electrode assembly (MEA) is made by applying nanocatalyst-dispersed conductive slurry to both sides of a polymer membrane, while conductive agents dispersed in solvent form slurry material for Li-ion battery electrodes. In 2012, research teams from its business divisions were consolidated into an integrated research unit at the Pangyo R&D Center. The company states that customers recognize its product quality and that the public recognizes its commitment to corporate social responsibility.
Exhibits
Dongjin Semichem Co., Ltd. supplies photoresist for ArF Immersion, ArF Dry, KrF and i-Line, as well as BARC, Spin-on-Carbon (SOC) Hardmask, Chemical Mechanical Polishing (CMP) Slurry and thinner products to domestic and foreign customers. Its photoresist changes properties under specific wavelengths to form coating patterns on substrates and serves as a key semiconductor-photolithography material, with a wide range of photoresists manufactured by the company. Semiconductor thinner is used for Edge Bead Removal (EBR) after photoresist spin coating and for Resist Reduced Coating (RRC), and its formulation can reduce photoresist dispensing volume by up to 50% compared with normal thinners while reducing hump height to improve yield. CMP Slurry is used on silicon wafers for planarization and removal of film or coating material; products are divided into oxide or metal slurry classes and further subdivided by abrasive material. BARC is applied before photoresist to prevent standing-wave pattern distortion and notching caused by scattered or reflected light, enabling precise micro- and nanoscale patterns, with different BARCs supplied for different wavelengths. SOC Hardmask is a spin-coatable hardmask for etch masking as photoresist films become thinner for smaller feature sizes and is suited to next-generation semiconductor manufacturing. Precursors are used to prepare thin films on Si wafer substrates through CVD or ALD, and the company develops and supplies ultra-high-purity Si and metal precursors. Melamine Mold Cleaner (MMC) removes impurities and carbonized substances arising during the application of epoxy molding compounds that protect semiconductor packages such as ICs and diodes. The semiconductor-material lineup is also listed as Photoresist, Thinner, CMP Slurry, Bottom Anti-reflective Coating, Hardmask, Precursor and Melamine Mold Cleaner. Its foaming-agent range includes chemical foaming agents and microcapsule foaming agents under the UNICELL brand; the company states that UNICELL accounts for approximately 30% of the global market, that it is the only company producing both physical and chemical foaming agents, and that it manufactures more than 80,000 tons per year under ISO9001, ISO14001 and ISO45001 certifications. UNICELL foaming agents form lightweight, thermally insulating, soundproof, elastic and shock-absorbing cellular foam for automotive and building interiors, shoes, wallpaper, flooring, packaging and aviation components, while urea- or zinc-based foaming catalysts accelerate decomposition to increase production yield and lower energy use. Foaming products include ADCA UNICELL-D with 2 to 25 micrometer particle sizes; hydrazide UNICELL-OH, UNICELL-H and UNICELL-BSH for rubber and PVC plastisol; DPT UNICELL-G for plastic and rubber; and high-temperature UNICELL-TS and UNICELL-5PT for ABS, rigid PVC, polyamide, HDPE and other high-temperature-processed plastics. The inorganic UNICELL-C series is used as a foaming or nucleating agent for polypropylene, ABS, polystyrene and polyethylene, decomposes endothermically without latent-heat thermal damage, meets FDA standards and can be used for food containers. Expandable UNICELL-MS microspheres expand up to five times in diameter and are offered for 100 to 220 ℃ processing in textile, paint, wallpaper and shoe-sole injection applications; expanded UNICELL-HMS hollow particles have a density of 0.02~0.04 g/cm³ and are used in leather, toy clay, shockproof tape and insulation paint. UNIBEAD polymeric bead microspheres have uniform particle-size distribution and add light-diffusing properties for paint and cosmetic applications, while eco-friendly foaming-agent development includes improved ADCA-based materials intended to reduce formamide and ammonia released during decomposition. Hydrazine Hydrate is supplied as a raw material for boiler-pipe cleaning and power-plant water treatment, with additional uses in agriculture, pharmaceutical-related applications, foaming-agent manufacture and polymerization initiators. ADCA UNICELL-D is described as a widely used plastic- and rubber-foaming agent with 2 to 25 micrometer particle sizes, non-toxic and self-extinguishing properties, safe storage and shelf life, and high gas generation for material expansion. Hydrazide products UNICELL-OH, UNICELL-H and UNICELL-BSH are described as non-toxic, non-staining and non-discoloring with effective nitrogen-gas release, and are mainly used for rubber and PVC plastisol foaming. DPT UNICELL-G is described as one of the oldest and most cost-efficient foaming agents for plastic and rubber, while high-temperature UNICELL-TS and UNICELL-5PT have little danger of pre-foaming and are used for plastics processed at high temperatures. Expandable UNICELL-MS microspheres have a core-shell structure with a foaming-agent core surrounded by a polymer shell and expand with heat into very small independent bubble cells. UNICELL foaming agents are also expected to reduce the use of major raw materials such as plastics and rubber. As of January 1, 2026, the Blowing Agent Business Division is separated into DONGJIN INNOCHEM and operates its own website.
Capabilities and products
- semiconductor photoresist (ArF Immersion/ArF Dry/KrF/i-Line)
- Bottom Anti-reflective Coating (BARC)
- Spin-on-Carbon (SOC) Hardmask
- Chemical Mechanical Polishing (CMP) slurry
- semiconductor thinner for EBR/RRC
- semiconductor developer
- colored resist
- organic insulating material
- column spacer materials
- ultra-high-purity Si and metal precursors for CVD/ALD
- Melamine Mold Cleaner (MMC)
- hydrogen fuel-cell MEA materials
- conductive slurry for Li-ion battery electrodes
- chemical foaming agents
- thermally expandable microcapsule foaming agents
- Hydrazine Hydrate for water treatment