Wonju Cho

Title: Innovations of Inventor Wonju Cho

Introduction

Wonju Cho is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of semiconductor technology, particularly in the development of advanced MOSFET devices. With a total of 4 patents to his name, Cho's work has been instrumental in pushing the boundaries of electronic device performance.

Latest Patents

Cho's latest patents include groundbreaking technologies such as the "Ultra short channel field effect transistor and method of fabricating the same." This invention features a MOSFET with an ultra-short channel length, utilizing a silicon wire channel region with a three-dimensional structure. The design incorporates a source/drain junction formed in a silicon conductive layer on both sides of the channel region. Additionally, a gate electrode is positioned above the silicon wire channel, separated by a high dielectric constant gate insulating layer. The innovative structure of the silicon wire channel region, which has a triangular or trapezoidal section, takes advantage of varying etch rates based on the planar orientation of silicon. The source/drain junction is created using a solid-state diffusion method.

Another notable patent is the "MOSFET device with nanoscale channel and method of manufacturing the same." This invention describes an SOI MOSFET device featuring a nanoscale channel that includes a source/drain region with both shallow extension and deep junction regions formed through solid-phase diffusion. The manufacturing method allows for simultaneous formation of these regions using silicon oxide films doped with different impurities. This approach enables precise control over impurity distribution in the channel, while also preventing changes in the device's threshold voltage.

Career Highlights

Cho is affiliated with the Electronics and Telecommunications Research Institute, where he continues to innovate in the field of electronics. His work has garnered attention for its potential to enhance the efficiency and performance of semiconductor devices.

Collaborations

Some of his notable coworkers include Seong Jae Lee and Kyoung Wan Park, who have collaborated with him on various projects within the institute.

Conclusion

Wonju Cho's contributions to semiconductor technology through his innovative patents demonstrate his expertise and commitment to advancing electronic devices. His work continues to influence the industry and pave the way for future innovations.