Ho Seung Chang

Title: Ho Seung Chang: Innovator in Thin Film Deposition Technology

Introduction

Ho Seung Chang is a notable inventor based in Pyungtaek, South Korea. He has made significant contributions to the field of semiconductor manufacturing, particularly in the area of thin film deposition. With a total of 2 patents to his name, Chang's work is recognized for its innovative approaches and technical advancements.

Latest Patents

Chang's latest patents include a method of depositing thin film and a method of manufacturing semiconductors using the same. The disclosed methods focus on achieving high selectivity by enhancing etching resistance while maintaining a low extinction coefficient associated with anti-reflectivity. The thin film deposition method involves depositing a carbon anti-reflective film on a substrate and adding a compound containing nitrogen, fluorine, or silicon to create a thin film with high selectivity. This process utilizes atomic layer deposition to form an ultrathin film that increases etching selectivity and improves the density and compressive stress of the carbon anti-reflective film.

Another significant patent is a thin film deposition reactor designed to optimize the deposition process. This reactor includes a reactor block with a deposition space, a wafer block, and a showerhead for spraying reaction gas. The design features lower and upper pumping baffles that enhance gas flow and improve the efficiency of the deposition process.

Career Highlights

Throughout his career, Ho Seung Chang has worked with reputable companies such as Ips Corporation and Integrated Process Systems Ltd. His experience in these organizations has contributed to his expertise in semiconductor technology and thin film deposition.

Collaborations

Chang has collaborated with notable professionals in his field, including Young Hoon Park and Choon Kum Baik. These collaborations have further enriched his work and contributed to advancements in semiconductor manufacturing.

Conclusion

Ho Seung Chang is a distinguished inventor whose contributions to thin film deposition technology have made a significant impact in the semiconductor industry. His innovative methods and designs continue to influence the field and pave the way for future advancements.