Dong Duk Lee

Title: Innovations of Dong Duk Lee in Semiconductor Fabrication

Introduction

Dong Duk Lee is a notable inventor based in Kyoungki-do, South Korea. He has made significant contributions to the field of semiconductor device fabrication, holding a total of 2 patents. His work focuses on improving the efficiency and precision of semiconductor manufacturing processes.

Latest Patents

One of his latest patents is titled "Method for fabricating semiconductor device by using etching polymer." This invention discloses a method that utilizes an etch-resistant polymer to enhance the fabrication of semiconductor devices. The method includes a step for the in-situ generation of a polymer layer on the exposed surfaces of a photoresist film pattern, a pad oxide film, and a hard mask layer. This polymer acts as a protective film, preventing photoresist erosion during trench etching processes and improving etch selectivity. As a result, trench structures can be formed more easily and with improved dimensional control.

Another significant patent by Dong Duk Lee is the "Method of forming a self-aligned contact utilizing a polysilicon layer." This method involves forming a contact region with an insulating layer that is etch protected. The process includes sequentially depositing a gate oxide layer, a first conducting layer for the gate electrode, a first insulating layer, and a second conducting layer on a silicon substrate. Portions of these layers are etched to create separated gate electrodes and etch protective layers, ultimately defining a source region. The method enhances the precision of contact region formation in semiconductor devices.

Career Highlights

Dong Duk Lee is currently employed at Hyundai Electronics Industries Co. Ltd., where he continues to innovate in semiconductor technology. His work has been instrumental in advancing the capabilities of semiconductor devices, making them more efficient and reliable.

Collaborations

He has collaborated with notable coworkers, including Hae Sung Park and Gon Son, contributing to various projects that enhance semiconductor fabrication techniques.

Conclusion

Dong Duk Lee's contributions to semiconductor device fabrication through his innovative patents demonstrate his expertise and commitment to advancing technology in this critical field. His work continues to influence the industry positively.