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UltraSense touch sensor aids automotive user interfaces

UltraSense touch sensor aids automotive user interfaces

New Products |
By Peter Clarke



UltraSense Systems Inc. (San Jose, Calif.) has launched TouchPoint Q, an automotive-qualified strain sensor that it claims improves capacitive touch systems. Typical applications include steering wheels, center consoles and door panels.

The technology adds calibratable force thresholds that can be added to capacitive touch sensing while being immune to temperature sensitivity, mechanical and aging stresses, and signal drift from adhesive.

UltraSense is a 2018 startup that has developed an ultrasound actuator/sensor that can be attached to the inside surface of an enclosure to create a touch user interface. The MEMS-based technology operates at megahertz frequencies.

The company’s QuadForce architecture uses a MEMS process to etch four strain sensors into a piezoelectric film materials applied to the surface of an ASIC. The strain sensors detect surface deflections down to the 100nm.

TouchPoint Q’s integrated MEMS strain sensors and mixed-signal ASIC processes a surface touch into a force. This in turn allows accurate touch and gesture detection using pattern recognition with machine learning.

TouchPoint Q is qualified to AEC Q100 Grade 2 (-40 to +105C) and available in a 3.0mm by 3.0mm by 0.6mm 24-pin QFN package.

Mobase Electronics Co. Ltd., a Korean supplier of automotive switches has announced a strategic partnership with UltraSense. Mobase will adopt the UltraSense TouchPoint Q TapForce HMI controller in its latest solid-surface infotainment button bars for Korean and other automobile makers in production later this year

Related links and articles:

www.ultrasensesys.com

News articles:

Machine learning improves ultrasound buttons

Former InvenSense executives launch MEMS ultrasound interface startup

Ultrasound sensor good for 3D echolocation

Startup Chirp Microsystems to become part of TDK’s InvenSense

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