Su-han Choi

Title: Su-han Choi: Innovator in Semiconductor Technology

Introduction

Su-han Choi is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of semiconductor technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and performance of semiconductor devices.

Latest Patents

One of Su-han Choi's latest patents is a semiconductor device with a stacked trench capacitor. This invention includes a field oxide layer selectively formed on a semiconductor substrate, defining an active region. The device features an electrically insulated gate electrode, a source and drain region, and a trench formed in the semiconductor substrate. An impurity-doped region is formed at the surface of the trench, along with multiple conductive layers and an etch blocking layer. The manufacturing method involves various processes to create these components, allowing for a larger surface area of the capacitor electrode by utilizing both the impurity-doped polycrystalline silicon layer and the trench's impurity-doped region as the first electrode of the capacitor.

Another notable patent is a method for manufacturing a highly integrated semiconductor memory device. This device comprises a plurality of memory cells formed by alternately disposing stack-type capacitor cells and combined stack-trench type capacitor cells in both row and column directions. The design allows for increased storage capacitance by overlapping the storage electrodes of adjacent memory cells. The arrangement prevents issues such as step coverage, leakage current, and soft errors in the stack-trench type capacitor.

Career Highlights

Su-han Choi is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate in semiconductor technology. His work has significantly impacted the development of advanced memory devices and semiconductor components.

Collaborations

Throughout his career, Su-han Choi has collaborated with notable colleagues, including Seong-Tae Kim and Jae-Hong Ko. These collaborations have contributed to the advancement of semiconductor technologies and the successful development of innovative products.

Conclusion

Su-han Choi is a key figure in the semiconductor industry, with a focus on developing advanced technologies that enhance device performance. His contributions through patents and collaborations continue to shape the future of semiconductor innovation.