MEMS micro speaker: Bosch expands sensor business for consumer electronics

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Bosch is expanding its expertise in MEMS (micro-electro mechanical systems) micro speakers and strengthening its market position as leading provider of sensing solutions for consumer electronics, with the acquisition of Arioso Systems, based in Dresden, Germany, which is to become part of the Bosch Sensortec GmbH.

Bosch enters the attractive market segment micro speakers with the acquisition of Arioso Systems, one of the world’s most innovative providers of MEMS micro speaker technology, broadening the diversification of Bosch Sensortec’s portfolio.

Arioso Systems developed a novel audio transducer technology, where sound is generated through movement of vertically oriented lamellas inside a silicon chip. Unlike conventional membrane, Arioso Systems technology uses the chip volume rather than surface.

The unique and innovative technology concept from Arioso Systems combined with the long-lasting experience from Bosch Sensortec to develop a technology to high-volume consumer electronics market maturity is expected to shape the emerging global MEMS micro speaker market. Manufacturers of TWS (true wireless stereo) earphones and other hearable devices will benefit from a Page 2 of 3 sound generation with significant less power consumption and a smaller form factor, which means an expanded battery run time and easier system integration.

According to the market experts from Yole, the total market for micro speakers is expected to grow from 9 billion US dollars in 2020 to 11 billion US dollars in 2026, while MEMS micro speakers will have a fast-growing share in it.

Dr. Stefan Finkbeiner, CEO of Bosch Sensortec, says “the planned acquisition of Arioso Systems further enlarges our sensing solutions expertise for consumer electronics in the field of micro speakers and makes us even more diversified.”