Company Filing History:
2 out of 6 
1 out of 11,026 
Years Active: 2020-2021
Title: **Innovator Spotlight: Sok Ho Lee from Yongin-si, KR**
Introduction
Sok Ho Lee is a prominent inventor based in Yongin-si, South Korea, known for his significant contributions to the field of semiconductor technology. With a total of two patents to his name, he is recognized for his innovative approaches to materials and processes that enhance the efficiency of etching compositions.
Latest Patents
Sok Ho Lee's latest patents include an innovative etching composition effective for selectively wet etching a silicon nitride film. This composition comprises an inorganic acid, a silicon-based compound, and an ammonium-based compound, specifically ammonium acetic acid, along with water. This composition allows for an etching rate that is at least 200 times faster than that of a silicon oxide film.
Another significant patent is for an etchant composition designed with high selectivity for silicon nitride films. This innovative composition demonstrates a remarkable selectivity of 2000:1 or higher when etching silicon nitride films compared to silicon oxide films, minimizing damage to the silicon oxide layer and preventing re-growth during the etching process.
Career Highlights
Throughout his career, Sok Ho Lee has made remarkable strides in the semiconductor industry. He has significantly contributed to the advanced materials and processes used in semiconductor manufacturing through his patents. His work reflects a commitment to improving efficiency and performance in semiconductor applications.
Collaborations
Sok Ho Lee has collaborated with several notable individuals in the industry, including Jung Hwan Song and Seong Sik Jeon. These collaborations have undoubtedly influenced his innovative work and contributed to the advancements in etching technologies within the semiconductor field.
Conclusion
In summary, Sok Ho Lee stands out as a key inventor in the semiconductor industry, with a focus on advancing etching technologies. His patents have paved the way for more efficient manufacturing processes, underscoring his role as a significant contributor to the field's innovation and development. With a clear track record of impactful inventions, Lee continues to inspire future advancements in technology.