Location History:
- Palo Alto, CA (US) (2009 - 2011)
- Sunnyvale, CA (US) (2009 - 2023)
Company Filing History:
4 out of 2,077 
2 out of 901 
1 out of 5,309 
Years Active: 2009-2023
Title: Sean T Hansen: Innovator in Acoustic Resonator Technology
Introduction
Sean T Hansen is a notable inventor based in Palo Alto, CA (US). He has made significant contributions to the field of acoustic resonator technology, holding a total of 7 patents. His work has been instrumental in advancing the capabilities of various electronic devices.
Latest Patents
One of Hansen's latest patents is for a wideband filter designed for direct connection to a differential power amplifier. This filter device is configured to connect directly to a differential power amplifier within a transmit chain circuit. It features a transformer and a filter designed as a half lattice equivalent topology with a single-ended output. The filter may also be a lattice filter configured as a full lattice topology or a lattice equivalent filter configured as a half lattice equivalent topology. The design includes a first branch with a first impedance network and a second branch with a second impedance network. The single-ended output connects to an antenna switch, which is in turn connected to an antenna.
Another significant patent involves bulk acoustic resonator devices and the processes for fabricating them. In this invention, an additional metal feature is formed on the top surface of the bottom electrode. This feature is strategically placed to ensure that the bottom electrode retains sufficient thickness after the piezoelectric material layer is etched. This innovation enhances the reliability and performance of bulk acoustic resonator devices.
Career Highlights
Throughout his career, Sean T Hansen has worked with prominent companies such as Siemens Medical Solutions USA, Inc. and Avago Technologies International Sales Pte. Limited. His experience in these organizations has contributed to his expertise in the field of acoustic technology.
Collaborations
Hansen has collaborated with notable professionals in his field, including Stephen Roy Barnes and Walter T Wilser. These collaborations have further enriched his work and innovations.
Conclusion
Sean T Hansen is a distinguished inventor whose contributions to acoustic resonator technology have had a lasting impact. His innovative patents and career achievements reflect his dedication to advancing technology in this field.