Company Filing History:
2 out of 27,040 
2 out of 380 Years Active: 2025
Title: Innovations of Eunwon Lee in Etchant Development
Introduction
Eunwon Lee is a notable inventor based in Iksan-si, South Korea. He has made significant contributions to the field of etchant development, particularly with his innovative formulations that enhance etching processes.
Latest Patents
Eunwon Lee holds a patent for an etchant that includes several key components. The etchant comprises persulfate, a fluorine-containing compound, a chlorine-containing compound, a cyclic amine compound, an inorganic acid, sulfate, and water. Notably, the etchant has a tip control index (Y) that ranges from about 45.0 to about 70.0. This index is calculated using a specific equation that incorporates various factors to ensure optimal performance.
Career Highlights
Throughout his career, Eunwon Lee has worked with prominent companies in the technology sector. He has been associated with Samsung Display Co., Ltd. and Dongwoo Fine-chem Co., Ltd., where he has applied his expertise in developing advanced materials and processes.
Collaborations
Eunwon Lee has collaborated with talented individuals in his field, including Shinhyuk Yang and Beomsoo Kim. These collaborations have contributed to the advancement of etchant technologies and have fostered innovation in the industry.
Conclusion
Eunwon Lee's contributions to etchant development highlight his innovative spirit and dedication to advancing technology. His work continues to influence the field and showcases the importance of research and collaboration in driving progress.