Location History:
- Daejeon, KR (1998)
- Yusung-ku, Daejeon, KR (1999)
- Taejon, KR (2002 - 2004)
Company Filing History:
6 out of 2,619 
2 out of 832,880 Years Active: 1998-2004
Title: Innovations of Inventor Chul Hi Han: Pioneering Semiconductor and Microlens Technologies
Introduction: Chul Hi Han, an innovative inventor based in Daejeon, South Korea, holds a remarkable portfolio of eight patents. His work in the fields of micro-machining technologies and semiconductor devices demonstrates significant advancements in functional efficiencies and applications.
Latest Patents: Among his latest patents are two noteworthy inventions. The first is a "Method of Fabricating a Refractive Silicon Microlens." This method utilizes micro-machining technology to create a silicon microlens array that enhances infrared sensor detectivity by 3.4 times. By selectively removing substrate regions around a boron-doped area, Chul Hi Han enables the fabrication of a two-dimensional infrared silicon microlens array, suitable for commercial infrared telecommunication devices.
The second patent is the "Method for Manufacturing a Semiconductor Device Having a Metal Layer Floating Over a Substrate." This innovation proposes a method to reduce the overall area of semiconductor devices by allowing passive elements, like inductors, to float over the substrate. This invention streamlines the integration of various passive components without sacrificing efficiency or design integrity.
Career Highlights: Chul Hi Han has significantly contributed to the technology landscape through his inventive methodologies, most notably at the Korea Advanced Institute of Science and Technology. His ability to combine theoretical knowledge with practical applications sets him apart as a leading figure in his field.
Collaborations: Throughout his career, Chul Hi Han has collaborated with notable colleagues, including Choong Ki Kim and Ho Jun Lee. These partnerships have further enriched his research contributions and fostered innovation within the semiconductor and optics sectors.
Conclusion: With a keen vision for the future of technology and a dedication to excellence, Chul Hi Han continues to influence the field of semiconductor and optical device innovation. His patents not only showcase his inventive prowess but also promise to advance technological capabilities in various industries.