Dongkeun Lee

Title: Dongkeun Lee: Semiconductor Memory Device Inventor.

Introduction

Dongkeun Lee is an inventor based in Suwon, South Korea. His work includes a patent for a three-dimensional semiconductor memory device and its fabrication method, developed in connection with Samsung Electronics Co., Ltd. Lee is credited with 1 patent in the information provided.

Latest Patents

Lee’s patent, “Three-Dimensional Semiconductor Memory Device, Method of Fabricating the Same, and Electronic System Including the Same,” describes a process for forming cell contact plugs in a three-dimensional semiconductor memory structure.

The method begins with alternating insulating and sacrificial layers on a semiconductor substrate. It forms sacrificial oxide and pad patterns over stepwise-exposed layer ends, then creates a vertical contact hole through the structure. After removing the sacrificial pad patterns and part of the oxide to extend the recess, the process fills the contact hole and extended recess with a cell contact plug.

Career Highlights

The available information identifies Lee’s work with Samsung Electronics Co., Ltd. His patent focuses on fabrication techniques for three-dimensional semiconductor memory devices, including the formation of contact structures within a layered device.

Collaborations

Younghwan Son is identified as Lee’s coworker. The provided information does not specify their roles or describe a particular joint project.

Conclusion

Dongkeun Lee’s listed patent addresses a fabrication method for three-dimensional semiconductor memory devices, reflecting his contribution to semiconductor technology at Samsung Electronics Co., Ltd.