This inventor holds 7 USPTO granted patents and 5 published patent applications. Top assignees: Hynix Semiconductor Inc., Skhynix Inc., Kabushiki Kaisha Toshiba. Active years: 2011-2016.
Location History:
- Ichon-si, KR (2013)
- Gyeonggi-do, KR (2011 - 2016)
- Icheon-si, KR (2015 - 2016)
Company Filing History:


Years Active: 2011-2016
Title: Keum Bum Lee: Innovator in Magnetoresistive Elements and Semiconductor Technology
Introduction
Keum Bum Lee is a prominent inventor based in Gyeonggi-do, South Korea. He has made significant contributions to the fields of magnetoresistive elements and semiconductor memory devices. With a total of 7 patents to his name, Lee's work has had a substantial impact on technology and innovation.
Latest Patents
One of his latest patents is focused on a magnetoresistive element and the method of manufacturing it. This invention includes a reference layer, a tunnel barrier layer, and a storage layer. The storage layer is designed with a first region and a second region that surrounds the first region. The second region contains elements that differ from those in the first region. Additionally, the magnetoresistive element features a cap layer with a third region and a fourth region, which also includes different elements. Another notable patent involves a fabrication method for a semiconductor memory device. This invention presents an access device with a reduced height that effectively suppresses leakage current. The device comprises a stacked structure of semiconductor layers and counter-doping layers, enhancing its performance and efficiency.
Career Highlights
Throughout his career, Keum Bum Lee has worked with notable companies such as Hynix Semiconductor Inc. and SK Hynix Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.
Collaborations
Lee has collaborated with talented individuals in the field, including Hyung Suk Lee and Hye Jin Seo. These partnerships have contributed to the advancement of his research and inventions.
Conclusion
Keum Bum Lee is a distinguished inventor whose work in magnetoresistive elements and semiconductor technology continues to influence the industry. His innovative patents and collaborations highlight his commitment to advancing technology.