Company Filing History:
2 out of 263 
1 out of 2,340 
Years Active: 1993-2002
Title: The Innovative Contributions of Sa K Ra
Introduction
Sa K Ra is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work focuses on methods that enhance the performance and manufacturing processes of semiconductor devices.
Latest Patents
One of Sa K Ra's latest patents is a method for forming a gate oxide film in a semiconductor device. This innovative process involves a first and second step of oxidizing and nitriding, utilizing gases with varying nitrogen contents to improve device performance. The steps include providing a semiconductor substrate, conducting a thermal process in a compound gas environment of oxygen and nitrogen with a nitrogen content below 5% to form a first oxynitride film, and then conducting a thermal process in a compound gas environment with a nitrogen content equal to or over 5% to form a second oxynitride film.
Another notable patent is related to methods of hyperfine patterning and manufacturing semiconductor devices. This method includes coating a hemisphere particle layer with hills and valleys on a layer to be etched. The hemisphere particle layer has a higher etch selectivity than the first layer. The process allows for hyperfine patterning of about 0.1 µm, which is crucial for increasing the capacitor node surface area in semiconductor memory elements.
Career Highlights
Sa K Ra has worked with notable companies in the semiconductor industry, including Goldstar Electronics Co., Ltd. and Hyundai Electronics Industries Co., Ltd. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.
Collaborations
Throughout his career, Sa K Ra has collaborated with talented individuals such as Young Kwon Jun and Dong Won Kim. These collaborations have further enriched his work and contributed to advancements in semiconductor technology.
Conclusion
Sa K Ra's innovative patents and contributions to semiconductor technology highlight his significant role in the industry. His work continues to influence the development of advanced semiconductor devices, showcasing the importance of innovation in this field.