{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,14]],"date-time":"2025-10-14T00:48:28Z","timestamp":1760402908246,"version":"build-2065373602"},"reference-count":20,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2021,4,7]],"date-time":"2021-04-07T00:00:00Z","timestamp":1617753600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This paper proposes a system in package (SiP) for ultrasonic ranging composed of a 4 \u00d7 8 matrix of piezoelectric micromachined ultrasonic transducers (PMUT) and an interface integrated circuit (IC). The PMUT matrix is fabricated using the PiezoMUMPS process and the IC is implemented in the AMS 0.35 \u00b5m technology. Simulation results for the PMUT are compared to the measurement results, and an equivalent circuit has been derived to allow a better approximation of the load of the PMUT on the IC. The control circuit is composed of a high-voltage pulser to drive the PMUT for transmission and of a transimpedance amplifier to amplify the received echo. The working frequency of the system is 1.5 MHz.<\/jats:p>","DOI":"10.3390\/s21082590","type":"journal-article","created":{"date-parts":[[2021,4,7]],"date-time":"2021-04-07T11:31:59Z","timestamp":1617795119000},"page":"2590","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["A System in Package Based on a Piezoelectric Micromachined Ultrasonic Transducer Matrix for Ranging Applications"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2413-7549","authenticated-orcid":false,"given":"Alexandre","family":"Robichaud","sequence":"first","affiliation":[{"name":"Department of Applied Sciences, Universit\u00e9 du Qu\u00e9bec \u00e0 Chicoutimi (UQAC), Chicoutimi, QC G7H 2B1, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6664-8369","authenticated-orcid":false,"given":"Dominic","family":"Deslandes","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, \u00c9cole de Technologie Sup\u00e9rieure (ETS), Montreal, QC H3C 1K3, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3665-0721","authenticated-orcid":false,"given":"Paul-Vah\u00e9","family":"Cicek","sequence":"additional","affiliation":[{"name":"Department of Computer Sciences, Universit\u00e9 du Qu\u00e9bec \u00e0 Montr\u00e9al (UQAM), Montreal, QC H2X 3Y7, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2281-7172","authenticated-orcid":false,"given":"Frederic","family":"Nabki","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, \u00c9cole de Technologie Sup\u00e9rieure (ETS), Montreal, QC H3C 1K3, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,4,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"113001","DOI":"10.1088\/1361-6439\/aa851b","article-title":"Review of piezoelectric micromachined ultrasonic transducers and their applications","volume":"27","author":"Jung","year":"2017","journal-title":"J. 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