Cheol-Woo Lee

Title: Innovations of Cheol-Woo Lee in Silicon Wafer Production

Introduction

Cheol-Woo Lee is a notable inventor based in Gumi, South Korea. He has made significant contributions to the field of semiconductor technology, particularly in the production of silicon wafers. With a total of 2 patents, his work has had a considerable impact on improving semiconductor device yields.

Latest Patents

Cheol-Woo Lee's latest patents focus on a method for producing silicon single crystal ingots using the Czochralski method. This innovative approach allows for the growth of silicon single crystal ingots that provide silicon wafers with very uniform in-plane quality. The method enhances the yield of semiconductor devices by optimizing the convection of the silicon melt. Specifically, the convection is divided into a core cell and an outer cell, with the core cell's maximal horizontal width being 30 to 60% of the surface radius of the silicon melt. Additionally, the method stipulates that the maximal vertical depth of the core cell should be equal to or greater than 50% of the maximal depth of the silicon melt.

Career Highlights

Cheol-Woo Lee is currently associated with Siltron, Inc., where he continues to advance his research and development efforts in semiconductor technology. His work has been instrumental in enhancing the quality and efficiency of silicon wafer production.

Collaborations

Throughout his career, Cheol-Woo Lee has collaborated with notable colleagues, including Hong-Woo Lee and Hyon-Jong Cho. These collaborations have contributed to the advancement of innovative solutions in the semiconductor industry.

Conclusion

Cheol-Woo Lee's contributions to the field of silicon wafer production exemplify the importance of innovation in semiconductor technology. His patents and ongoing work at Siltron, Inc. continue to influence the industry positively.