Nanusens pursues ear bud market with MEMS-in-CMOS: Page 3 of 3

February 20, 2019 //By Peter Clarke
Nanusens pursues ear bud market with MEMS-in-CMOS
Nanusens Ltd. has developed a MEMS sensor in CMOS for tap detection use in ear buds that it claims can be up to ten times smaller than conventional MEMS sensors and thereby free up space for larger batteries.

Nanusens MEMS sensor can be used to implement tap and double tap for control, wake-on-movement and sleep-on-rest functions, and, soon after, a 3D accelerometer. A bone conduction sensor for noise cancellation is next to be integrated into the single chip solution. Chips will be available in a small package such as WLCSP or as bare die that can be attached directly to the PCB. With a volume of about one cubic millimeter the Nanusens will save 3 cubic millimeters compared with conventional MEMS components, Montanya estimates.

Chip layout showing two Nanusens motion sensors integrated with the control electronics on the same die. Source: Nanusens.

Nanusens is also developing a bone conduction sensor for noise cancellation – due in 2019 –a 3D accelerometer for step counting, gyroscope and compass for head position sensing and microphones – all due in 2020.

The company is also working with Bluetooth SoC reference designers and a Series A round of finance of about €10 million to €15 million.

Related links and articles:

News articles:

Nanusens moves to UK to exploit crowdfunding tax break

Nanusens creates nanosensors in CMOS

Baolab buries MEMS into CMOS production line

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