Wu-Yi Henry Chien

Title: Innovations by Wu-Yi Henry Chien: Pioneering Advances in Memory Technology

Introduction

Wu-Yi Henry Chien, based in San Jose, California, is a distinguished inventor known for his significant contributions to the field of memory technologies. With an impressive portfolio comprising 36 patents, Chien is at the forefront of innovations that have the potential to revolutionize data storage solutions.

Latest Patents

Among Chien's latest innovations are two notable patents. The first patent addresses "Cool electron erasing in thin-film storage transistors." This invention involves a storage transistor equipped with a tunnel dielectric layer and a charge-trapping layer located between a channel region and a gate electrode. The charge-trapping layer is designed with a conduction band offset that is less than the reduction of the tunneling barrier in the tunnel dielectric layer under applied programming voltage. This allows electrons to tunnel directly into the charge-trapping layer, which has a conduction band value ranging from -1.0 eV to 2.3 eV. Additionally, the storage transistor may include a barrier layer between the tunnel dielectric layer and the charge-trapping layer, enhancing functional efficiency.

Chien's second major patent is centered on the "Three-dimensional memory string array of thin-film ferroelectric transistors." This invention organizes Thin-film Ferroelectric field-effect transistors (FeFET) into 3-dimensional NOR memory string arrays. Each string array consists of rows of active stacks, comprising a specific number of active strips stacked vertically and separated by isolation layers. Data is stored in the active strips using ferroelectric elements, capable of being individually set into one of two polarization states, allowing FeFETs on different active strips to operate in parallel for reading, programming, or erasing functions.

Career Highlights

Wu-Yi Henry Chien has made substantial strides in the technology sector throughout his career. He has worked with notable organizations, including Sunrise Memory Corporation and Sandisk 3D LLC, where he contributed his expertise in developing cutting-edge memory solutions.

Collaborations

During his career, Chien has had the opportunity to collaborate with prominent figures in the industry, including Eli Harari and Scott Brad Herner. These collaborations have allowed him to innovate further in the realm of memory technologies, leading to the development of groundbreaking patents.

Conclusion

Wu-Yi Henry Chien stands as a leading inventor in the field of memory technology, with a rich repertoire of patents reflecting his innovative spirit and technical prowess. His latest developments in thin-film storage transistors and three-dimensional memory arrays showcase his commitment to advancing the capabilities of data storage, setting the stage for future innovations in this critical area of technology.