Personne
Soumya Yandrapalli
Cette personne n’est plus à l’EPFL
Publications associées (19)
Comb Transducer for Generation of SH0 Mode in Crystalline Piezoelectric Membrane
Soumya Yandrapalli, Victor Plessky
It is shown that the comb IDT (CT) can efficiently excite SH0 mode in piezoelectric membrane of suitable orientation. The transducer has pitch equal to the wavelength (p=lambda) and the electrode size is half of the wavelength. As compared to conventional ...
IEEE2020Fabrication Of Lithium Niobate Bulk Acoustic Resonator For 5G Filters
Luis Guillermo Villanueva Torrijo, Annalisa De Pastina, Soumya Yandrapalli, Victor Plessky, Muhammad Faizan
This work presents the fabrication of a MEMS resonant device which addresses the need for high quality and miniaturized RF filters in the 3-6 GHz range for 5th generation (5G) mobile networks. The 4-mask fabrication process is based on the definition of in ...
IEEE20195 GHz laterally-excited bulk-wave resonators (XBARs) based on thin platelets of lithium niobate
Luis Guillermo Villanueva Torrijo, Soumya Yandrapalli, Victor Plessky
In a free-standing 400-nm-thick platelet of crystalline ZY-LiNbO3, narrow electrodes (500 nm) placed periodically with a pitch of a few microns can eXcite standing shear-wave bulk acoustic resonances (XBARs), by utilising lateral electric fields oriented p ...
20195 GHz Band n79 wideband microacoustic filter using thin lithium niobate membrane
Luis Guillermo Villanueva Torrijo, Soumya Yandrapalli, Victor Plessky, Bruno Garcia
Microacoustic resonators made on suspended continuous membranes of LiNbO3 were recently shown to have very strong coupling and low losses at >= 5 GHz, suitable for high-performance filter design. Employing these simple resonator structures, the authors hav ...
INST ENGINEERING TECHNOLOGY-IET2019Laterally excited bulk wave resonators (XBARs) based on thin Lithium Niobate platelet for 5GHz and 13 GHz filters
Luis Guillermo Villanueva Torrijo, Annalisa De Pastina, Soumya Yandrapalli, Victor Plessky, Muhammad Faizan
In a free ZY-LiNbO3 400nm thick platelet, narrow electrodes (500nm wide) placed periodically with a pitch of few micrometers can eXcite standing Bulk Acoustic shear wave Resonances (XBARs), by means of lateral electric field parallel to crystalline Y- axis ...
IEEE2019Analysis of XBAR resonance and higher order spurious modes
Luis Guillermo Villanueva Torrijo, Soumya Yandrapalli, Victor Plessky
A suspended 400nm thin mono-crystalline ZY cut Lithium Niobate (LN) membrane with narrow interdigital electrodes (IDEs) on top having a pitch of the order of few microns excites standing shear bulk acoustic wave resonance (XBAR) within the membrane through ...
IEEE2019Three-Dimensional Nano-Acoustic Bragg Reflectors for CMOS Embedded NEMS
Luis Guillermo Villanueva Torrijo, David Ruffieux, Soumya Yandrapalli
Integration of CMOS electronic circuits and electromechanical resonators has been pursued for a long time by many different research groups and even foundries. This would improve the overall performance of electromechanical oscillators and sensors. However ...
Institute of Electrical and Electronics Engineers2017Design of Passive Wireless MEMS Microphone
MEMS microphones, since their first introduction in 1983 have achieved a high commercial success due to their compatibility with MEMS and IC integration, small footprint and immunity to vibrational effects. There are around one billion microphones in produ ...
2017Characterization of Mechanical Properties of Micro/Nano Beams
In this project, characterization of a series of previously fabricated Aluminium clamped-clamped micro beams and cantilevers by electrical measurements in order to investigate the effects of scaling down on mechanical properties of micro/nano structures is ...
2016