A sub-MW electromagnetic microspeaker with bass enhancement using a parylene/graphene/parylene composite membrane

P. R. Jadhav, Yu-Ting Cheng*, S. K. Fan, C. Y. Liang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

This paper demonstrates an ultra-low-power electromagnetic microspeaker where a parylene/ graphene/parylene composite layer is employed as the speaker membrane for not only bass sound enhancement but also for power improvement. The speaker with a ∼500 nm thin composite membrane in a size of 3.5 mm in diameter can exhibit a sound output of 104 dB sound pressure level (SPL) @ 670 Hz in a 2 c.c. coupler with an input power of 380 μW. This composite membrane speaker with the least power consumption performance has shown its great potential for the Completely-in-the-Canal (CIC) hearing aids applications with better battery life.

Original languageEnglish
Title of host publication2018 IEEE Micro Electro Mechanical Systems, MEMS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages620-623
Number of pages4
ISBN (Electronic)9781538647820
DOIs
StatePublished - 24 Apr 2018
Event31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018 - Belfast, United Kingdom
Duration: 21 Jan 201825 Jan 2018

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Volume2018-January
ISSN (Print)1084-6999

Conference

Conference31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018
CountryUnited Kingdom
CityBelfast
Period21/01/1825/01/18

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