Company Filing History:
Years Active: 2006-2009
Title: Innovations of Chin Hung Chang
Introduction
Chin Hung Chang is a prominent inventor based in Tainan, Taiwan. He has made significant contributions to the field of memory technology, holding a total of six patents. His work focuses on enhancing the performance and efficiency of multi-level cell (MLC) memory applications.
Latest Patents
One of his latest patents is titled "Parallel threshold voltage margin search for MLC memory application." This invention outlines a method for determining read voltage margins in a memory array by comparing as-read sum codes generated from data read from the memory array with expected sum codes. The read voltage (Vt) is adjusted, and the comparison helps identify the Vt ranges that yield matching sum codes. This method allows for the determination of multiple read voltage margins in a parallel manner as Vt is stepped across its range.
Another notable patent is "Multi-level-cell programming methods of non-volatile memories." This invention presents a novel approach to altering the sequence of multi-level-cell programming in a multi-bit-cell of a nitride trapping memory cell. It aims to reduce or eliminate voltage threshold shifts between program steps while avoiding the suppression of the read window duration caused by complementary bit disturbance. The patent describes two embodiments for programming the multi-level cell in a multi-bit-cell with four bits, ensuring efficient programming without compromising performance.
Career Highlights
Chin Hung Chang is currently employed at Macronix International Co., Ltd., where he continues to innovate in the field of memory technology. His expertise and contributions have positioned him as a key figure in advancing non-volatile memory solutions.
Collaborations
Chin Hung Chang has collaborated with notable coworkers, including Wen Chiao Ho and Chun Hsiung Hung. Their combined efforts have contributed to the development of cutting-edge memory technologies.
Conclusion
Chin Hung Chang's innovative work in memory technology, particularly in multi-level cell applications, showcases his dedication to advancing the field. His patents reflect a commitment to improving the efficiency and performance of memory systems, making him a significant contributor to the industry.