Yuan-hao Chang

Title: Innovations by Yuan-hao Chang: A Pioneer in Flash Memory Technology

Introduction

Yuan-hao Chang, a distinguished inventor based in Tainan, Taiwan, has made significant contributions to the field of flash memory technology. With a total of six patents to his name, Chang has focused on developing innovative systems and methods that enhance the efficiency and performance of flash memory devices.

Latest Patents

Among his notable innovations are two recent patents that address critical challenges in flash memory management. The first patent, titled "Flash memory system and managing and collecting methods for flash memory with invalid page messages thereof," introduces a sophisticated system for managing the transition of valid data pages to invalid pages. This innovative approach utilizes a recording area to capture messages pertaining to invalid data pages, effectively optimizing the collection of occupied space within flash memory. During the garbage collection process, this system allows for rapid block selection and accurate identification of valid data pages, ensuring efficient data management.

The second key patent, "Method for performing static wear leveling on flash memory," presents a novel method for enhancing wear leveling in flash memory devices. Chang’s method integrates a static wear leveling unit with a block reclamation unit, either in a flash translation layer or a native file system. This innovative solution effectively monitors the distribution of block leveling cycles across physical blocks, enabling the system to request leveling for blocks that fall below a predetermined threshold. The process includes a strategic relocation of rarely updated data, which optimizes wear leveling and ensures more uniform usage of memory blocks.

Career Highlights

Yuan-hao Chang is currently employed at Genesys Logic, Inc., a company renowned for its advancements in the semiconductor industry. His work at Genesys Logic has been pivotal in the evolution of flash memory technologies, providing groundbreaking solutions that meet the demands of a rapidly evolving digital landscape.

Collaborations

Throughout his career, Chang has collaborated with esteemed colleagues, including Jen-Wei Hsieh and Tei-Wei Kuo. These partnerships have fostered a creative and innovative environment, facilitating the development of cutting-edge technologies that push the boundaries of what is possible in flash memory applications.

Conclusion

Yuan-hao Chang stands out as a significant figure in the realm of flash memory technology. His inventive spirit and commitment to innovation are reflected in his impressive portfolio of patents, which continue to shape the future of data storage solutions. As the industry progresses, Chang’s contributions will undoubtedly play a vital role in enhancing the efficiency and capability of flash memory systems.