Company Filing History:
Years Active: 1993-2000
Title: Innovations of Chi Hung Leung
Introduction
Chi Hung Leung is a notable inventor based in Rochester Hills, MI (US). He has made significant contributions to the field of micromachining and electrical engineering. With a total of 7 patents to his name, Leung has demonstrated a commitment to advancing technology through innovative solutions.
Latest Patents
One of his latest patents involves integrated electrostatically-actuated micromachined all-metal relays. This invention describes structures and fabrication methods for micromachined all-metal relays on silicon chips. The relay features a copper blade, electroformed into lithographically patterned areas, with dimensions of 1 mm × 2 mm × 0.01 mm (width × length × thickness) and includes longitudinal slots to facilitate the fabrication process. The relay operates using electrostatic force, eliminating the need for conduction current to maintain either the 'on' or 'off' state. It is ideally used in conjunction with a suitable arc suppression circuit.
Another significant patent by Leung focuses on electroplated Ag-Ni-C electrical contacts. This invention comprises nesting electrical connectors that include a substrate and a silver-nickel-carbon electrodeposit atop the substrate. The electrodeposit is at least about 0.5 micrometers thick and contains approximately 10 to 25 atomic percent nickel, which is dispersed as a discontinuous phase throughout a continuous phase of silver. The carbon component comprises about 5 to 15 atomic percent of the deposit and features a non-crystalline graphite structure.
Career Highlights
Chi Hung Leung is currently employed at GM Global Technology Operations LLC, where he continues to innovate and develop new technologies. His work has significantly impacted the field of electrical engineering and micromachining.
Collaborations
Leung has collaborated with notable coworkers such as Thaddeus Schroeder and Bruno P Lequesne, contributing to various projects and advancements in technology.
Conclusion
Chi Hung Leung's contributions to the field of micromachining and electrical engineering are noteworthy. His innovative patents and ongoing work at GM Global Technology Operations LLC highlight his dedication to advancing technology.
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