Company Filing History:
2 out of 1,455 
2 out of 598 
1 out of 3,345 
Years Active: 1991-2009
Title: The Innovations of Kin Ping Cheung
Introduction
Kin Ping Cheung is a notable inventor based in Hoboken, NJ (US). He holds a total of 7 patents that showcase his contributions to the field of technology and engineering. His work primarily focuses on methods for measuring capacitance and processes for hermetically packaging microscopic structures.
Latest Patents
One of his latest patents involves methods for measuring capacitance. This patent details methods for determining capacitance values of a metal on semiconductor (MOS) structures. A time domain reflectometry circuit can be loaded with a MOS structure, which may be biased with various voltages. Reflectometry waveforms from the applied voltage can be collected, allowing for the determination of the capacitance of the MOS structure from these waveforms.
Another significant patent pertains to processes for hermetically packaging wafer-level microscopic structures. This process includes steps such as depositing a capping layer of sacrificial material patterned by lithography over the microscopic structure supported on a substrate. It also involves depositing a support layer of dielectric material, providing vias through the support layer, and removing the capping layer via wet etching. The process culminates in selectively applying a laser beam under high vacuum to seal the vias.
Career Highlights
Kin Ping Cheung has worked with several prominent organizations throughout his career. Notable among these are Rutgers, the State University of New Jersey, and Agere Systems. His experience in these institutions has contributed significantly to his expertise and innovative capabilities.
Collaborations
Throughout his career, Cheung has collaborated with various professionals, including Christopher J Case and Ruichen Liu. These collaborations have likely enriched his work and led to further advancements in his field.
Conclusion
Kin Ping Cheung's contributions to technology through his patents and career achievements highlight his role as an influential inventor. His innovative methods and processes continue to impact the field of engineering and technology.