Company Filing History:
Years Active: 2018-2022
Title: Innovations of Hongtao Ma in LED Technology
Introduction
Hongtao Ma is a prominent inventor based in Campbell, CA (US). He has made significant contributions to the field of LED technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and performance of LED packages through innovative designs and methods.
Latest Patents
One of his latest patents is for an LED package with surface textures and methods of formation. This invention provides methods and apparatus for LED packages that feature microstructures on their surfaces, which improve light extraction efficiency. In one embodiment, the LED package includes a silicone-encapsulating layer that is scattered with phosphors. Another embodiment features a leadframe substrate. The microstructures can take various forms, such as micro lenses, micro dents, micro pillars, or micro cones, and can be arranged either periodically or randomly. Additionally, the patent describes a compression molding process to create rough surfaces, utilizing modified molding blocks or release films with microstructures. Another innovative aspect involves using a sandblasting process to form microstructures on sidewalls, with specific selections of hardness, angle, and size of the blasting media to enhance LED package efficiency.
Another notable patent involves devices and methods that include an LED and reflective die attach material. This invention describes devices that can incorporate a reflective substrate, such as one with a silver layer, to which one or more LED die are attached using a die attach material. The die attach material extends beyond the periphery of the LED die, covering an area of the substrate surface.
Career Highlights
Hongtao Ma is currently associated with Luminus, Inc., where he continues to innovate in the field of LED technology. His work has been instrumental in advancing the capabilities of LED packages, making them more efficient and effective for various applications.
Collaborations
He has collaborated with notable coworkers, including Tao Tong and Qifeng Shan, contributing to a dynamic and innovative work environment.
Conclusion
Hongtao Ma's contributions to LED technology through his patents and work at Luminus, Inc. highlight his role as a key innovator in the field. His inventions are paving the way for more efficient lighting solutions, showcasing the importance of innovation in technology.