Youngha Choi

Title: Youngha Choi and Memory-Device Operation

Introduction

Youngha Choi is an inventor associated with Hwaseong, South Korea, and Samsung Electronics Co., Ltd. His patent work concerns methods for operating memory devices and memory controllers.

Latest Patents

The provided information lists one patent for Choi: “Operation Method of Memory Device, and Operation Method of Memory Controller Controlling Memory Device.” It describes a memory block containing cell transistors stacked perpendicular to a substrate, including a ground selection transistor and an erase control transistor positioned between the substrate and the ground selection transistor.

The method sequences operations on these transistors: first, it erases the ground selection transistor; then it programs the erase control transistor, programs the ground selection transistor, and erases the erase control transistor. This sequence addresses the operation of the memory device and its controller. Choi is credited with 1 patent in the information provided.

Career Highlights

Choi’s listed patent connects his work at Samsung Electronics Co., Ltd. with memory-device operation. The available details do not specify his role, employment dates, or other career milestones.

Collaborations

Jun-Ho Seo and Yong-Wan Son are identified as Choi’s coworkers. The provided information does not describe their specific contributions to the patent.

Conclusion

Youngha Choi’s listed invention focuses on a sequenced erase-and-program method for transistors in a memory device, reflecting his patent-related work associated with Samsung Electronics.