{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,31]],"date-time":"2025-10-31T14:03:59Z","timestamp":1761919439171,"version":"build-2065373602"},"reference-count":39,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2011,5,4]],"date-time":"2011-05-04T00:00:00Z","timestamp":1304467200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this paper, an industrially-oriented two-scale approach is provided to model the drop-induced brittle failure of polysilicon MEMS sensors. The two length-scales here investigated are the package (macroscopic) and the sensor (mesoscopic) ones. Issues related to the polysilicon morphology at the micro-scale are disregarded; an upscaled homogenized constitutive law, able to describe the brittle cracking of silicon, is instead adopted at the meso-scale. The two-scale approach is validated against full three-scale Monte-Carlo simulations, which allow for stochastic effects linked to the microstructural properties of polysilicon. Focusing on inertial MEMS sensors exposed to drops, it is shown that the offered approach matches well the experimentally observed failure mechanisms.<\/jats:p>","DOI":"10.3390\/s110504972","type":"journal-article","created":{"date-parts":[[2011,5,4]],"date-time":"2011-05-04T09:03:57Z","timestamp":1304499837000},"page":"4972-4989","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Two-Scale Simulation of Drop-Induced Failure of Polysilicon MEMS Sensors"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5111-9800","authenticated-orcid":false,"given":"Stefano","family":"Mariani","sequence":"first","affiliation":[{"name":"Dipartimento di Ingegneria Strutturale, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2280-0490","authenticated-orcid":false,"given":"Aldo","family":"Ghisi","sequence":"additional","affiliation":[{"name":"Dipartimento di Ingegneria Strutturale, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy"}]},{"given":"Alberto","family":"Corigliano","sequence":"additional","affiliation":[{"name":"Dipartimento di Ingegneria Strutturale, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy"}]},{"given":"Roberto","family":"Martini","sequence":"additional","affiliation":[{"name":"Dipartimento di Ingegneria Strutturale, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy"}]},{"given":"Barbara","family":"Simoni","sequence":"additional","affiliation":[{"name":"MH Division, STMicroelectronics, Via Tolomeo 1, 20010 Cornaredo, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2011,5,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"702","DOI":"10.1088\/0960-1317\/12\/5\/329","article-title":"A physical model to predict stiction in MEMS","volume":"12","author":"Puers","year":"2002","journal-title":"J. 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