Company Filing History:
Years Active: 2010-2013
Title: Innovations of Stefan-Dan Costea
Introduction
Stefan-Dan Costea is a notable inventor based in Bucharest, Romania. He has made significant contributions to the field of sensor technology, holding a total of 4 patents. His work focuses on developing advanced piezoelectric strain sensors that have practical applications in various industries.
Latest Patents
One of his latest patents is a "Thin-film transistor based piezoelectric strain sensor and method." This innovative sensor is designed to detect strain, vibration, and pressure. It incorporates a sequence of piezoelectric and semiconductor layers within a thin-film transistor structure. The sensor can be configured on a flexible substrate using a low-cost fabrication technique. The piezoelectric layer generates an electric charge, which modulates the transistor current, providing a measure of external strain. Additionally, the sensor can be formed as both a single gate and a dual gate field-effect piezoelectric sensor, offering increased sensitivity and control.
Another significant patent is the "Method for sensor fabrication and related sensor and system." This method involves forming multiple trenches in a first wafer and creating a sensor structure on a second wafer. The process includes bonding the two wafers and etching to form a sensor diaphragm. The resulting sensor features a surface acoustic wave (SAW) resonator and a bonding pad, enhancing its functionality.
Career Highlights
Stefan-Dan Costea is currently employed at Honeywell International Inc., where he continues to innovate and develop cutting-edge technologies. His work at Honeywell has allowed him to apply his expertise in sensor technology to real-world applications, contributing to the company's advancements in this field.
Collaborations
Throughout his career, Costea has collaborated with talented individuals such as Cornel P Cobianu and Bogdan-Catalin Serban. These collaborations have fostered a creative environment that encourages innovation and the development of new technologies.
Conclusion
Stefan-Dan Costea is a prominent inventor whose work in piezoelectric strain sensors has the potential to revolutionize various industries. His contributions to sensor technology, along with his collaborations, highlight his commitment to innovation and excellence in his field.