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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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Featuring Abhay Kochhar, Staff Device Engineer Akoustis Technologies, Inc.
Abstract: Akoustis uses pioneering next-generation materials science to address market requirements for improved RF filters. Bulk acoustic wave (BAW) is the technology of choice for RF signal filtering in the range of 2 – 7 GHz. BAW technology enables small
filter dimensions, leading to compact systems, improved design tradeoffs and lowered cost. High quality factor (Q) of BAW resonators enables improved performance, notably lower passband loss and steeper filter skirts. In this talk, we showcase the capability and performance of resonators and filter solutions created using XBAW, a novel manufacturing process, capable of producing state-of-the-art BAW RF resonators and filters for WiFi, 5G infrastructure, 5G mobile, and defense/general applications. Using this XBAW wafer manufacturing process and a variety of advanced high purity piezoelectric AlN and AlScN thin films, RF filter solutions are created to address needed improvements in bandwidth, operating frequency and output power compared to incumbent BAW technology deployed today. Further, we present the capability of the XBAW wafer manufacturing platform to extend into the MHz frequency spectrum, by demonstrating high-performance Micro-Electro-Mechanical (MEMS) resonators, using various acoustic vibrational modes with improved AlN and AlScN piezoelectric materials. Finally, a brief introduction to XBAW Foundry services is presented, including BAW and MEMS devices offered by the XBAW process.
Biography: Abhay Kochhar (S’11-M’13-SM’19) received a B.E. from Nagpur University, India, an M.Tech. from VNIT Nagpur, India, and a Ph.D. from Tohoku University, Japan. From Oct 2013 – Sept 2015, he worked as a Postdoctoral Research Fellow with WPI-AIMR, Tohoku University. From Oct 2015 – Sep 2016, he was Postdoctoral Research Associate and during Oct 2016 – Apr 2019 he was Research Scientist, both with the ECE department at Carnegie Mellon University, Pittsburgh, PA. Since May 2019, he is working at Akoustis Technologies, Inc., Huntersville, NC, where presently he is Staff Device Engineer. He was awarded Japanese Government (MEXT) Scholarship from 2010-2013. He has won the best paper award at IEEE International Ultrasonic Symposium in 2012. His research interests include microfabrication, hetero-integrated systems, piezoelectric materials for timing and filter applications, etc.
