Company Filing History:
Years Active: 1999
Title: Innovator Spotlight: Jai-Hwang Chang and His Contributions to EEPROM Technology
Introduction: Jai-Hwang Chang, a notable inventor based in Cupertino, California, has made significant strides in the realm of memory technology. With one patented invention to his name, Chang exemplifies the creativity and technical expertise required to push the boundaries of electronic memory devices.
Latest Patents: Chang's prominent patent focuses on a "Low voltage one transistor flash EEPROM cell using Fowler-Nordheim." This innovative design features a single transistor electrically erasable programmable memory device that is capable of programming and erasing through Fowler-Nordheim tunneling. Notably, this technology operates efficiently under low voltage conditions, which is crucial for portable electronic devices. The patent describes how certain portions of the source and drain regions overlap with the first gate dielectric layer, optimizing the device's performance. By employing an interpoly dielectric layer with a high dielectric constant, Chang maximizes capacitive coupling between the floating gate, control gate, source, and drain. The logical conditions within the memory cell array can be established by elevating a block of cells to a high voltage threshold, while selectively lowering the threshold for individual cells.
Career Highlights: Currently, Jai-Hwang Chang is a key member of the team at Rohm GmbH. His experience and insight into electronic design contribute greatly to the innovative projects underway at the company. His expertise in EEPROM technology showcases the importance of ongoing research and development within the tech industry.
Collaborations: At Rohm GmbH, Chang collaborates with esteemed colleagues, including Shang-De Chang and Edwin Chow. Together, they share knowledge and work towards enhancing memory technologies, driving advancements in the field.
Conclusion: Jai-Hwang Chang is a remarkable inventor whose work in low voltage EEPROM technology underscores the ongoing evolution of electronic memory devices. His contributions not only demonstrate his individual talent but also highlight the collaborative spirit within research environments like Rohm GmbH. As technology continues to advance, innovators like Chang will play an essential role in shaping the future of electronic devices.