Ji-Hong Kim

Title: **Inventor Ji-Hong Kim: Innovations in Photoresist Technology**

Introduction

Ji-Hong Kim, an esteemed inventor located in Taejeon, South Korea, has made significant contributions to the field of semiconductor technology through his inventive work in photoresist materials. With a total of seven patents, he has established himself as a pivotal figure in advancing the efficiency and quality of semiconductor manufacturing processes.

Latest Patents

Among his latest innovations are two prominent patents focusing on copolymers engineered for positive photoresist and chemical amplification. The first patent describes a copolymer characterized by a repeating unit defined by a specific chemical structure. This copolymer supports a positive photoresist composition integrated with a photoacid generator, enabling optimal pattern shapes despite post-baking delays. This innovation is notable for its compatibility with various radiation types, including UV and charged particle beams, while also providing exceptional storage stability and high resolution—crucial for the high integration of semiconductor devices.

In his second patent, Ji-Hong presents a positive chemical amplified photoresist composition that utilizes a matrix resin derived from his specially designed polymer. This polymer has an expansive weight average molecular weight range, ensuring the photoresist exhibits outstanding sensitivity and resolution in alkaline development. It further demonstrates excellent transmissivity to deep UV light alongside superior preservativity, making it an essential component in modern photoresist applications.

Career Highlights

At present, Ji-Hong Kim is affiliated with Korea Kumho Petrochemical Co., Ltd., where his research and development endeavors play a crucial role in enhancing the company’s technological capabilities in the petrochemical sector and semiconductor materials. His contributions have been instrumental in pushing forward innovations that cater to industry demands for high-performance materials.

Collaborations

Throughout his career, Ji-Hong has collaborated with notable peers, including Seong-Ju Kim and Joo-Hyeon Park. These collaborations underline the importance of teamwork in the research and development process, facilitating the sharing of ideas and expertise crucial for fostering innovation.

Conclusion

Ji-Hong Kim’s innovative work in the development of copolymers for photoresists has not only advanced semiconductor technology but also positioned him as a valuable contributor to the field. His patents reflect a commitment to excellence and a deep understanding of materials science, making noteworthy strides towards future advancements in semiconductor applications.