Dongjin Semichem, a South Korean manufacturer of photoresist (PR) materials, has successfully developed 'extreme ultraviolet (EUV) negative PR' and has commenced mass production to meet customer demand. This achievement comes hot on the heels of the company's first EUV PR supply - 'EUV Positive PR' - to Samsung Electronics in December of the previous year.
Industry insiders disclosed that Dongjin Semichem has initiated the mass production of EUV negative PR, a critical component in the process of forming semiconductor circuit patterns. The photoresist technology can be divided into a positive variant, which eradicates highly exposed areas, and a negative one, which. . .
