Micromachined ultrasonic transducers

Grader A: hit

Butterfly iQ, a handheld scanner on a 9,000-element CMUT chip, got FDA 510(k) clearance in October 2017 and sold for under $2,000; PMUT ultrasonic fingerprint sensors shipped in phones in 2019. The poster's example use (remotely boosting soldiers' alertness) is not available, but the label is the transducer technology.

Test: D37 Horizons: CMUT/PMUT-based products buyable by ordinary customers or clinicians by 2022 (earlier counts).

• First Ultrasound-on-a-Chip receives broadest FDA 510(k) clearance (2017-10-27): Butterfly iQ, CMUT-based ultrasound-on-a-chip, cleared for 13 clinical applications, priced under $2,000.

Grader B: hit

Butterfly iQ, a CMUT ultrasound-on-a-chip probe, was FDA-cleared in Oct 2017 and sold to clinicians from 2018. The poster's example use (remote alertness stimulation in soldiers) never became a product; graded on the label, the technology.

Test: A CMUT-based product could be bought by ordinary customers (clinicians/businesses) by 2022 (earlier counts).

• First Ultrasound-on-a-Chip receives broadest FDA 510(k) clearance (2017-10-27): Butterfly iQ cleared for 13 clinical applications; MEMS (CMUT) sensor array on an IC.
• CMUT/CMOS-based Butterfly iQ - A Portable Personal Sonoscope (2019): Confirms the commercial iQ uses CMUT transducers.