This inventor holds 1 USPTO granted patent. Top assignees: Korea Advanced Institute of Science and Technology, Skhynix Inc.. Active years: 2026.
Company Filing History:
1 out of 2,781 
1 out of 11,629 
Years Active: 2026
Title: Changyeop Lee: Innovator in Voltage-to-Time Conversion Technology
Introduction
Changyeop Lee is a notable inventor based in Daejeon, South Korea. He has made significant contributions to the field of semiconductor technology, particularly with his innovative designs in voltage-to-time conversion circuits. His work has implications for various electronic applications, enhancing the efficiency and performance of semiconductor devices.
Latest Patents
Changyeop Lee holds a patent for a "Voltage-to-Time Converter Circuit and Semiconductor Device Including the Same." This invention features a voltage-to-time converter (VTC) circuit that includes an input capacitor charged according to an input voltage during a precharge operation. Additionally, it has an output capacitor charged during the same precharge operation. The circuit utilizes a first transistor to discharge the output capacitor based on the voltage charged in the input capacitor during a subsequent operation. Furthermore, a second transistor is employed to charge the output capacitor according to the voltage from the input capacitor during another operation. This innovative design is aimed at improving the functionality of semiconductor devices.
Career Highlights
Throughout his career, Changyeop Lee has worked with prominent organizations, including SK Hynix Inc. and the Korea Advanced Institute of Science and Technology. His experience in these institutions has allowed him to collaborate with leading experts in the field and contribute to groundbreaking advancements in semiconductor technology.
Collaborations
Some of his notable coworkers include Seung-Tak Ryu and Junho Cheon. Their collaborative efforts have further enriched the research and development environment in which Changyeop Lee operates.
Conclusion
Changyeop Lee's contributions to voltage-to-time conversion technology exemplify his innovative spirit and dedication to advancing semiconductor technology. His patent and career achievements reflect his significant impact on the industry.