Company Filing History:
Years Active: 2013
Title: Innovative Contributions of Yik-Khoon Ee in Semiconductor Technology
Introduction: Yik-Khoon Ee, based in Mountain View, California, is a notable inventor holding two patents that significantly advance the field of semiconductor light-emitting devices. His innovative approaches and methodologies are paving the way for improved light extraction efficiency in LEDs and lasers.
Latest Patents: Yik-Khoon Ee's most recent patents encompass two groundbreaking inventions. The first patent focuses on semiconductor light-emitting devices having concave microstructures providing improved light extraction efficiency and method for producing same. In this invention, traditional semiconductor LEDs are enhanced by integrating a microlens layer over their light-emitting surfaces. This microlens layer contains concave microstructures arranged in a uniform array, specifically designed to diffuse light rays, thus boosting the LEDs' light extraction efficiency. Constructed of curable materials like polydimethylsiloxane (PDMS), this microlens layer is created through a soft-lithography imprinting process.
The second patent introduces an abbreviated epitaxial growth mode (AGM) method for reducing cost and improving quality of LEDs and lasers. This innovative technique employs a low-temperature GaN buffer layer on nano-patterned AGOG sapphire substrates. By omitting etch-back and recovery processes during epitaxy, this method enables the cultivation of high-quality GaN templates with significantly reduced defect densities compared to conventional methods. The resulting InGaN quantum wells demonstrated a remarkable output power enhancement of at least 24%, showcasing the effectiveness of this novel approach.
Career Highlights: Yik-Khoon Ee’s career is marked by his profound contributions to semiconductor technology, particularly in the realms of LED and laser development. His extensive research and development efforts are recognized within the scientific community, reflecting his commitment to innovation.
Collaborations: Throughout his career, Yik-Khoon Ee has collaborated with esteemed colleagues such as Nelson Tansu and James F. Gilchrist. These collaboration efforts have been instrumental in advancing semiconductor research and enhancing the effectiveness of their respective innovations.
Conclusion: Yik-Khoon Ee's inventive work in semiconductor technology underscores his position as a leading innovator in the field. His latest patents not only demonstrate his ingenuity but also promise significant advancements for light-emitting devices. With collaborations backing his efforts, Yik-Khoon Ee continues to influence the future of semiconductor technologies.