Weon-taek Choi

Title: Weon-taek Choi: Innovator in Semiconductor Technology

Introduction

Weon-taek Choi is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of semiconductor technology, particularly in the formation of field oxide layers in integrated circuits. His innovative methods have paved the way for advancements in highly integrated semiconductor devices.

Latest Patents

Weon-taek Choi holds 1 patent for his invention titled "Method for forming a field oxide layer of a semiconductor integrated." This patent describes a comprehensive method that includes depositing a pad oxide layer and a nitride layer over a substrate. The process involves removing the nitride layer over a field region, forming spacers on the side walls of the remaining nitride layer, and doping an impurity into the field region using the spacers as a mask. The method also includes thermally oxidizing the substrate exposed in the field region, growing the field oxide layer, and planarizing the upper portion of the field oxide layer through an etchback process. This innovative approach effectively reduces the step coverage problem of the field oxide layer, minimizing the size of the bird's beak and stress at the edges of the field region. Additionally, the heavily doped channel stop layer is formed only in the middle section of the field region, which prevents the lowering of the breakdown voltage and punch-through.

Career Highlights

Weon-taek Choi is currently associated with Samsung Electronics Co., Ltd., a leading company in the electronics industry. His work at Samsung has allowed him to be at the forefront of semiconductor research and development. His contributions have been instrumental in enhancing the performance and reliability of semiconductor devices.

Collaborations

Throughout his career, Weon-taek Choi has collaborated with notable colleagues, including Weon-sik Paek and Taek-Yong Jang. These collaborations have fostered a productive environment for innovation and have led to significant advancements in their respective fields.

Conclusion

Weon-taek Choi's innovative methods in semiconductor technology exemplify the impact of dedicated inventors in advancing modern electronics. His contributions continue to influence the industry and pave the way for future innovations.