Youngjae Park

Title: Youngjae Park: Innovator in Semiconductor Memory Technology

Introduction

Youngjae Park is a prominent inventor based in Suwon, South Korea. He has made significant contributions to the field of semiconductor memory devices. With a total of 3 patents to his name, Park continues to push the boundaries of technology in his field.

Latest Patents

One of Youngjae Park's latest patents is a semiconductor memory device and memory system that includes a memory cell array, an error correction code (ECC) engine, an error check and scrub (ECS) circuit, a row hammer management circuit, and a refresh control circuit. This innovative device features an ECC engine that generates an error generation signal based on the results of ECC decoding. The ECS circuit generates scrubbing addresses and outputs at least one of these addresses as an error address based on the error generation signal. Additionally, the row hammer management circuit stores an error flag in count cells, compares counted values with different reference numbers based on the logic level of the error flag, and outputs a hammer address. The refresh control circuit then receives this hammer address and performs a hammer refresh operation on one or more victim memory cell rows that are physically adjacent to the memory cell row corresponding to the hammer address. Another notable patent is a self-refresh method for a semiconductor memory device, which includes receiving a self-refresh entry command, counting the elapsed time from the command's receipt, and potentially skipping the self-refresh operation depending on whether a self-refresh exit command is received before the elapsed time exceeds a reference time.

Career Highlights

Youngjae Park is currently employed at Samsung Electronics Ltd., where he continues to innovate in semiconductor technology. His work has been instrumental in advancing memory device capabilities and reliability.

Collaborations

Some of his notable coworkers include Jonghyun Shin and Junghoon Lee, who contribute to the collaborative efforts in their projects.

Conclusion

Youngjae Park's contributions to semiconductor memory technology exemplify his dedication to innovation and excellence in the field. His patents reflect a deep understanding of complex memory systems and their operational efficiencies.