This inventor holds 1 USPTO granted patent. Top assignee: Sandia Corporation. Active years: 1998.
Company Filing History:
Years Active: 1998
Title: Michael J Hafich: Innovator in Broadband Light-Emitting Diodes
Introduction
Michael J Hafich is a notable inventor based in Albuquerque, NM (US). He is recognized for his contributions to the field of light-emitting diodes (LEDs), particularly in the development of broadband LEDs. His innovative work has implications for various applications, including chemical sensing and fiber-optic technologies.
Latest Patents
Hafich holds a patent for a broadband light-emitting diode. This invention comprises a plurality of III-V compound semiconductor layers grown on a semiconductor substrate. The semiconductor layers include a pair of cladding layers surrounding a strained-quantum-well active region, which has multiple energy bandgaps for generating light in a wavelength range of about 1.3-2 μm. The active region may consist of oppositely strained quantum-well layers or a short-period superlattice structure made of alternating thin layers of InGaAs and InGaAlAs. This design allows for precise growth of different layers within the active region, enhancing the performance of the LED. The broadband LED can be configured as either a surface-emitting or edge-emitting device, suitable for applications such as chemical sensing, fiber optic gyroscopes, and wavelength-division-multiplexed fiber-optic data links.
Career Highlights
Hafich is currently associated with Sandia Corporation, where he continues to advance his research and development in semiconductor technologies. His work has significantly contributed to the understanding and application of broadband LEDs in various high-tech fields.
Collaborations
Some of his notable coworkers include John F Klem and Ian J Fritz, who have collaborated with Hafich on various projects related to semiconductor technologies.
Conclusion
Michael J Hafich's innovative work in broadband light-emitting diodes showcases his expertise and commitment to advancing technology in the field of semiconductors. His contributions are paving the way for future advancements in optical applications.