Location History:
- Cheongju-si, KR (2020)
- Suwon-si, KR (2021)
Company Filing History:
2 out of 131,906 
1 out of 3 Years Active: 2020-2021
Title: The Innovations of Sangyeol Lee
Introduction
Sangyeol Lee is a notable inventor based in Cheongju-si, South Korea. He has made significant contributions to the field of memory devices and photoelectric conversion technologies. With a total of two patents to his name, Lee's work showcases his expertise and innovative spirit.
Latest Patents
One of Sangyeol Lee's latest patents is a method of testing and repairing memory cells during the power-up sequence of a memory device. This invention includes a built-in self-test (BIST) unit that tests a memory cell array during the power-up sequence. The BIST unit operates in response to a power stabilization signal or an impedance control calibration command. It can also terminate tests based on specific commands, enhancing the reliability of memory devices. Another significant patent is for a photoelectric conversion device that includes quantum dot layers. This device features a substrate with a photoactive layer, along with first and second electrodes connected to the edges of the photoactive layer. The photoactive layer consists of a first oxide semiconductor layer and alternating layers of quantum dots and second oxide semiconductors, which improve the efficiency of photoelectric conversion.
Career Highlights
Sangyeol Lee has worked with prominent organizations, including Samsung Electronics and the Cheongju University Industry & Academy Cooperation Foundation. His experience in these institutions has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.
Collaborations
Throughout his career, Lee has collaborated with talented individuals such as Kyungsang Cho and Chanwook Baik. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Sangyeol Lee's contributions to the fields of memory devices and photoelectric conversion highlight his innovative capabilities as an inventor. His patents reflect a commitment to advancing technology and improving device performance.