Location History:
- Chungcheongnam-do, KR (1997)
- Osan-si, KR (2012)
- Seoul, KR (1997 - 2022)
Company Filing History:
3 out of 1,027 
3 out of 3 
2 out of 2 
Years Active: 1997-2022
Title: **Innovator Spotlight: Sang Jun Choi**
Introduction
Sang Jun Choi, an accomplished inventor based in Seoul, South Korea, has significantly contributed to the field of technology with a total of 13 patents to his name. His innovative work primarily revolves around advancements in materials and etching apparatus, showcasing his expertise in the engineering and technology sectors.
Latest Patents
Among Sang Jun Choi's latest patents is the **Anti-reflective hardmask composition**. This invention features an anti-reflective hardmask composition that includes a polymer composed of an indolocarbazole and an organic solvent, aimed at improving the efficiency of photolithography processes. Another noteworthy patent is the **Dry etching apparatus**, which presents a new approach to dry etching applicable to various materials. This apparatus incorporates an anode unit, a cathode unit, and a bidirectional voltage source supply unit, offering versatile functionality and precision in manufacturing.
Career Highlights
Choi has worked with leading organizations, including LG Semicon Co., Ltd., where he developed key technologies and contributed to the innovation landscape within the semiconductor industry. His expertise has allowed him to stay at the forefront of technological advancements, significantly impacting the efficiency and effectiveness of manufacturing processes.
Collaborations
Throughout his career, Sang Jun Choi has collaborated with talented professionals, such as Ji Sung Kang and Jeong Soo Byun. These partnerships have fostered a rich environment of creativity and innovation, resulting in groundbreaking inventions that push the boundaries of technology.
Conclusion
Sang Jun Choi's dedication to innovation and his impressive portfolio of patents underscore his status as a leading inventor in South Korea. With his continuous efforts to develop effective solutions and refine technological processes, he remains a pivotal figure in advancing the fields of materials science and engineering. As he continues to innovate, Choi's impact on the industry will undoubtedly grow, inspiring future generations of inventors and engineers.