Company Filing History:
Years Active: 2000-2001
Title: Innovator Liu Chia-Cheng: Pioneering Advances in Light Emitting Diodes
Introduction
Liu Chia-Cheng, based in Hsin-Chu, Taiwan, is an accomplished inventor with a keen focus on light emitting diode (LED) technology. With a total of two patents to his name, Liu has made significant contributions to the field, particularly in developing innovative structures that enhance light transmission and efficiency.
Latest Patents
Liu's latest patents include the invention of an inverted light emitting diode and an indium gallium nitride light emitting diode. The inverted light emitting diode is distinguished by its unique construction, where a nitride LED is fabricated on a transparent sapphire substrate. This design allows the LED to be mounted upside-down on a conductive silicon substrate. By relocating one electrode to the bottom, this innovative structure improves upward light transmission and reduces the die area required for equal light emission.
In his second patent, the indium gallium nitride light emitting diode, a transparent conductive layer is introduced between the electrode and the semiconductor diode. This layer helps distribute current evenly across the diode while minimizing series resistance. Particularly beneficial for blue light emitting diodes, the use of tin indium oxide as the transparent conductive layer exemplifies Liu's ability to enhance LED functionality.
Career Highlights
Liu Chia-Cheng’s dedication to innovation is exemplified through his work at Epistar Corporation, a prominent company in the LED industry. His expertise in semiconductor technologies has positioned him as a key player in advancing LED applications.
Collaborations
Liu has collaborated with notable colleagues, including Jou Ming-Jiunn and Lee Biing-Jye. These partnerships reflect a commitment to teamwork and a collective pursuit of cutting-edge innovations within the LED sector.
Conclusion
In summary, Liu Chia-Cheng stands out as a visionary inventor in the field of light emitting diode technology. His patents not only enhance the efficiency of LEDs but also showcase his commitment to pushing the boundaries of innovation. As his career progresses, Liu is likely to continue impacting the industry and shaping the future of lighting technologies.