Xian Fan

Title: Innovations of Xian Fan in Memory Technology

Introduction

Xian Fan is a prominent inventor based in Hefei, China, known for his significant contributions to memory technology. With a total of five patents to his name, he has made remarkable advancements in the field, particularly in the areas of refresh circuits and address selection methods.

Latest Patents

Xian Fan's latest patents include a refresh circuit and memory system that enhances the efficiency of memory operations. The preprocessing module in his design receives a word line activation command and a clock signal, outputting a word line address corresponding to the current command when a count value reaches a preset threshold. Additionally, an address processing module counts all received word line address signals, outputting the most frequently occurring address as a row hammer address. This innovation allows for the generation of supplementary refresh addresses and normal refresh addresses, optimizing the refresh operation based on acquired address signals.

Another notable patent involves an address selection circuit and its control method. This circuit includes an address receiving component, a row hammer address generation circuit, and a decoding circuit. The address receiving circuit outputs a first address signal in response to a selection signal, which can include either a regular refresh address or an active address signal. The row hammer address generation circuit then produces a second address output signal and a redundancy identifier, while the decoding circuit generates a target address based on these signals.

Career Highlights

Xian Fan is currently employed at Changxin Memory Technologies, Inc., where he continues to innovate in the field of memory technology. His work has been instrumental in developing solutions that address the challenges faced in modern memory systems.

Collaborations

Xian Fan collaborates with notable colleagues, including Xianlei Cao and Yinchuan Gu, who contribute to the advancement of technology in their respective areas.

Conclusion

Xian Fan's contributions to memory technology through his innovative patents demonstrate his expertise and commitment to advancing the field. His work not only enhances memory operations but also sets a foundation for future developments in technology.