Company Filing History:
4 out of 1,021 
1 out of 162 
1 out of 741 Years Active: 2013-2015
Title: Innovations of Yang Hee Song
Introduction
Yang Hee Song is a notable inventor based in Seongnam-si, South Korea. He has made significant contributions to the field of semiconductor technology, holding a total of four patents. His work primarily focuses on light-emitting diodes and related manufacturing processes.
Latest Patents
One of his latest patents is for a semiconductor light-emitting diode that features an ohmic electrode structure. This invention provides a method for manufacturing the diode, which includes a light-emitting structure with an upper surface constituting an N-face and an ohmic electrode structure located on the light-emitting structure. The ohmic electrode structure consists of a lower diffusion preventing layer, a contact layer, an upper diffusion preventing layer, and an aluminum protective layer from the N-face of the light-emitting structure.
Another significant patent involves a method for manufacturing a nano-imprint mold, which is used in the production of light-emitting diodes. This method includes several processes, such as forming an n-type nitride semiconductor layer, a light-emitting layer, and a p-type nitride semiconductor layer on a temporary substrate. The process also involves forming a p-type electrode, a conductive substrate, and a nanoimprint resist layer, followed by pressing the nanoimprint mold to transfer the nano-pattern onto the resist layer.
Career Highlights
Yang Hee Song has worked with various organizations, including the Postech Academy-Industry Foundation and Seoul Opto Device Co., Ltd. His experience in these institutions has allowed him to develop and refine his innovative ideas in semiconductor technology.
Collaborations
Throughout his career, Yang Hee Song has collaborated with notable colleagues, including Jong Lam Lee and Jun Ho Son. These partnerships have contributed to the advancement of his research and inventions.
Conclusion
Yang Hee Song's contributions to semiconductor technology and light-emitting diodes have made a significant impact in the field. His innovative patents and collaborations highlight his dedication to advancing technology.