Design and Fabrication of a Kirigami-Inspired Electrothermal MEMS Scanner with Large Displacement

Large-displacement microelectromechanical system (MEMS) scanners are in high demand for a wide variety of optical applications. Kirigami, a traditional Japanese art of paper cutting and folding, is a promising engineering method for creating out-of-plane structures. This paper explores the feasibili...

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Номзүйн дэлгэрэнгүй
Үндсэн зохиолчид: Masaaki Hashimoto, Yoshihiro Taguchi
Формат: Өгүүллэг
Хэл сонгох:English
Хэвлэсэн: MDPI AG 2020-03-01
Цуврал:Micromachines
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Онлайн хандалт:https://www.mdpi.com/2072-666X/11/4/362
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author Masaaki Hashimoto
Yoshihiro Taguchi
author_facet Masaaki Hashimoto
Yoshihiro Taguchi
author_sort Masaaki Hashimoto
collection DOAJ
description Large-displacement microelectromechanical system (MEMS) scanners are in high demand for a wide variety of optical applications. Kirigami, a traditional Japanese art of paper cutting and folding, is a promising engineering method for creating out-of-plane structures. This paper explores the feasibility and potential of a kirigami-inspired electrothermal MEMS scanner, which achieves large vertical displacement by out-of-plane film actuation. The proposed scanner is composed of film materials suitable for electrothermal self-reconfigurable folding and unfolding, and microscale film cuttings are strategically placed to generate large displacement. The freestanding electrothermal kirigami film with a 2 mm diameter and high fill factor is completely fabricated by careful stress control in the MEMS process. A 200 μm vertical displacement with 131 mW and a 20 Hz responsive frequency is experimentally demonstrated as a unique function of electrothermal kirigami film. The proposed design, fabrication process, and experimental test validate the proposed scanner’s feasibility and potential for large-displacement scanning with a high fill factor.
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spelling doaj.art-8143ee76284d49d9866c5ccac376b9232023-11-19T20:10:48ZengMDPI AGMicromachines2072-666X2020-03-0111436210.3390/mi11040362Design and Fabrication of a Kirigami-Inspired Electrothermal MEMS Scanner with Large DisplacementMasaaki Hashimoto0Yoshihiro Taguchi1School of Integrated Design Engineering, Keio University, 3-14-1 Hiyoshi, Yokohama, JapanDepartment of System Design Engineering, Keio University, 3-14-1 Hiyoshi, Yokohama, JapanLarge-displacement microelectromechanical system (MEMS) scanners are in high demand for a wide variety of optical applications. Kirigami, a traditional Japanese art of paper cutting and folding, is a promising engineering method for creating out-of-plane structures. This paper explores the feasibility and potential of a kirigami-inspired electrothermal MEMS scanner, which achieves large vertical displacement by out-of-plane film actuation. The proposed scanner is composed of film materials suitable for electrothermal self-reconfigurable folding and unfolding, and microscale film cuttings are strategically placed to generate large displacement. The freestanding electrothermal kirigami film with a 2 mm diameter and high fill factor is completely fabricated by careful stress control in the MEMS process. A 200 μm vertical displacement with 131 mW and a 20 Hz responsive frequency is experimentally demonstrated as a unique function of electrothermal kirigami film. The proposed design, fabrication process, and experimental test validate the proposed scanner’s feasibility and potential for large-displacement scanning with a high fill factor.https://www.mdpi.com/2072-666X/11/4/362electrothermal scannerkirigami filmlarge displacementmicroelectromechanical system (MEMS)
spellingShingle Masaaki Hashimoto
Yoshihiro Taguchi
Design and Fabrication of a Kirigami-Inspired Electrothermal MEMS Scanner with Large Displacement
Micromachines
electrothermal scanner
kirigami film
large displacement
microelectromechanical system (MEMS)
title Design and Fabrication of a Kirigami-Inspired Electrothermal MEMS Scanner with Large Displacement
title_full Design and Fabrication of a Kirigami-Inspired Electrothermal MEMS Scanner with Large Displacement
title_fullStr Design and Fabrication of a Kirigami-Inspired Electrothermal MEMS Scanner with Large Displacement
title_full_unstemmed Design and Fabrication of a Kirigami-Inspired Electrothermal MEMS Scanner with Large Displacement
title_short Design and Fabrication of a Kirigami-Inspired Electrothermal MEMS Scanner with Large Displacement
title_sort design and fabrication of a kirigami inspired electrothermal mems scanner with large displacement
topic electrothermal scanner
kirigami film
large displacement
microelectromechanical system (MEMS)
url https://www.mdpi.com/2072-666X/11/4/362
work_keys_str_mv AT masaakihashimoto designandfabricationofakirigamiinspiredelectrothermalmemsscannerwithlargedisplacement
AT yoshihirotaguchi designandfabricationofakirigamiinspiredelectrothermalmemsscannerwithlargedisplacement