Location History:
- Urbana, IL (US) (2000 - 2004)
- Champaign, IL (US) (2004 - 2006)
Company Filing History:
Years Active: 2000-2006
Title: Innovations of Shyh-Chiang Shen
Introduction
Shyh-Chiang Shen is a notable inventor based in Champaign, Illinois, with a remarkable portfolio of seven patents. His work primarily focuses on advancements in microelectromechanical systems (MEMS) and bipolar transistors, contributing significantly to the fields of electronics and engineering.
Latest Patents
One of Shen's latest patents is for a high cycle MEMS device, which is designed to operate at low voltage while maintaining a high life cycle. This invention features separate support posts that prevent a suspended switch pad from touching the actuation pad, allowing the switch pad to ground a signal line effectively. Additionally, the cantilevered support beams are constructed from a thicker material than the switching pad, which helps keep the switch flat in its resting position. The preferred embodiments of this invention include dimples in the switch pad to enhance contact with a signal line and symmetrically arranged serpentine cantilevers to support the switch pad.
Another significant patent is for a collector layer structure for a double hetero-junction bipolar transistor aimed at power amplification applications. This invention utilizes an indium phosphide-based double hetero-junction bipolar transistor that achieves an increased collector-base breakdown voltage and a reduced operational knee voltage by manipulating the conductivity in the collector region. The collector is formed with layers of varying conductivities, where the region closest to the base is either unintentionally or low doped. This design reduces the maximum electric field and the velocity of carriers injected into the collector region at the base-collector junction.
Career Highlights
Shyh-Chiang Shen has had a distinguished career, working with prominent institutions such as the University of Illinois and Xindium Technologies, Inc. His contributions to the field of electronics have been recognized through his innovative patents and research.
Collaborations
Throughout his career, Shen has collaborated with esteemed colleagues, including Milton Feng and Nick Holonyak, Jr. These partnerships have further enriched his research and development efforts.
Conclusion
Shyh-Chiang Shen's innovative work in MEMS devices and bipolar transistors showcases his significant contributions to technology and engineering. His patents reflect a commitment to advancing electronic systems, making him a noteworthy figure in the field of invention.