This inventor holds 15 USPTO granted patents. Top assignees: Hynix Semiconductor Inc., Hyundai Electronics Industries Co. Ltd., Magnachip Semiconductor, Inc.. Active years: 2002-2014.
Location History:
- Ichon, KR (2002)
- Ichon-shi, KR (2002 - 2007)
- Kyoungki-do, KR (2002 - 2007)
- Chungcheongbuk-do, JP (2012)
- Chungcheongbuk-do, KR (2006 - 2014)
Company Filing History:
4 out of 6,228 
4 out of 2,340 
4 out of 516 
Years Active: 2002-2014
Title: The Innovations of Ju-Il Lee
Introduction
Ju-Il Lee is a prominent inventor based in Kyoungki-do, South Korea. He has made significant contributions to the field of semiconductor technology, particularly in the development of image sensors. With a total of 15 patents to his name, Lee's work has had a substantial impact on the industry.
Latest Patents
Among his latest patents, Lee has developed a CMOS image sensor featuring a double gate insulator. This innovative method for manufacturing a CMOS image sensor involves preparing a semiconductor substrate that incorporates a p-type epitaxial layer. The process includes forming a pixel array with multiple transistors and a photodiode, where each transistor utilizes a gate insulator with a thickness ranging from 40 to 90 nanometers. Additionally, he has created a backside illuminated image sensor that includes a photodiode positioned below the top surface of the semiconductor substrate. This design allows the photodiode to generate photoelectric charges from light illuminated from the backside of the substrate.
Career Highlights
Ju-Il Lee has worked with notable companies in the semiconductor industry, including Hyundai Electronics Industries Co. Ltd. and Hynix Semiconductor Inc. His experience in these organizations has contributed to his expertise in developing advanced semiconductor technologies.
Collaborations
Throughout his career, Lee has collaborated with talented individuals such as Nan-Yi Lee and Kyung-Lak Lee. These partnerships have fostered innovation and have been instrumental in the success of his projects.
Conclusion
Ju-Il Lee's contributions to the field of semiconductor technology, particularly in image sensors, highlight his innovative spirit and dedication to advancing the industry. His patents and collaborations reflect a commitment to excellence and a drive to push the boundaries of technology.