Electrothermally-Actuated Micromirrors with Bimorph Actuators—Bending-Type and Torsion-Type

Three different electrothermally-actuated MEMS micromirrors with Cr/Au-Si bimorph actuators are proposed. The devices are fabricated with the SOIMUMPs process developed by MEMSCAP, Inc. (Durham, NC, USA). A silicon-on-insulator MEMS process has been employed for the fabrication of these micromirrors...

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Main Authors: Cheng-Hua Tsai, Chun-Wei Tsai, Hsu-Tang Chang, Shih-Hsiang Liu, Jui-Che Tsai
Format: Article
Language:English
Published: MDPI AG 2015-06-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/15/6/14745
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author Cheng-Hua Tsai
Chun-Wei Tsai
Hsu-Tang Chang
Shih-Hsiang Liu
Jui-Che Tsai
author_facet Cheng-Hua Tsai
Chun-Wei Tsai
Hsu-Tang Chang
Shih-Hsiang Liu
Jui-Che Tsai
author_sort Cheng-Hua Tsai
collection DOAJ
description Three different electrothermally-actuated MEMS micromirrors with Cr/Au-Si bimorph actuators are proposed. The devices are fabricated with the SOIMUMPs process developed by MEMSCAP, Inc. (Durham, NC, USA). A silicon-on-insulator MEMS process has been employed for the fabrication of these micromirrors. Electrothermal actuation has achieved a large angular movement in the micromirrors. Application of an external electric current 0.04 A to the bending-type, restricted-torsion-type, and free-torsion-type mirrors achieved rotation angles of 1.69°, 3.28°, and 3.64°, respectively.
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spelling doaj.art-0547511f8bd24f4fa5aa8d7499256e302022-12-22T04:01:02ZengMDPI AGSensors1424-82202015-06-01156147451475610.3390/s150614745s150614745Electrothermally-Actuated Micromirrors with Bimorph Actuators—Bending-Type and Torsion-TypeCheng-Hua Tsai0Chun-Wei Tsai1Hsu-Tang Chang2Shih-Hsiang Liu3Jui-Che Tsai4These authors contributed equally to this work.Graduate Institute of Photonics and Optoelectronics and the Department of Electrical Engineering, National Taiwan University, Taipei 10617, TaiwanGraduate Institute of Photonics and Optoelectronics and the Department of Electrical Engineering, National Taiwan University, Taipei 10617, TaiwanGraduate Institute of Photonics and Optoelectronics and the Department of Electrical Engineering, National Taiwan University, Taipei 10617, TaiwanGraduate Institute of Photonics and Optoelectronics and the Department of Electrical Engineering, National Taiwan University, Taipei 10617, TaiwanThree different electrothermally-actuated MEMS micromirrors with Cr/Au-Si bimorph actuators are proposed. The devices are fabricated with the SOIMUMPs process developed by MEMSCAP, Inc. (Durham, NC, USA). A silicon-on-insulator MEMS process has been employed for the fabrication of these micromirrors. Electrothermal actuation has achieved a large angular movement in the micromirrors. Application of an external electric current 0.04 A to the bending-type, restricted-torsion-type, and free-torsion-type mirrors achieved rotation angles of 1.69°, 3.28°, and 3.64°, respectively.http://www.mdpi.com/1424-8220/15/6/14745microelectromechanical deviceselectrothermal effectssilicon on insulator
spellingShingle Cheng-Hua Tsai
Chun-Wei Tsai
Hsu-Tang Chang
Shih-Hsiang Liu
Jui-Che Tsai
Electrothermally-Actuated Micromirrors with Bimorph Actuators—Bending-Type and Torsion-Type
Sensors
microelectromechanical devices
electrothermal effects
silicon on insulator
title Electrothermally-Actuated Micromirrors with Bimorph Actuators—Bending-Type and Torsion-Type
title_full Electrothermally-Actuated Micromirrors with Bimorph Actuators—Bending-Type and Torsion-Type
title_fullStr Electrothermally-Actuated Micromirrors with Bimorph Actuators—Bending-Type and Torsion-Type
title_full_unstemmed Electrothermally-Actuated Micromirrors with Bimorph Actuators—Bending-Type and Torsion-Type
title_short Electrothermally-Actuated Micromirrors with Bimorph Actuators—Bending-Type and Torsion-Type
title_sort electrothermally actuated micromirrors with bimorph actuators bending type and torsion type
topic microelectromechanical devices
electrothermal effects
silicon on insulator
url http://www.mdpi.com/1424-8220/15/6/14745
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AT chunweitsai electrothermallyactuatedmicromirrorswithbimorphactuatorsbendingtypeandtorsiontype
AT hsutangchang electrothermallyactuatedmicromirrorswithbimorphactuatorsbendingtypeandtorsiontype
AT shihhsiangliu electrothermallyactuatedmicromirrorswithbimorphactuatorsbendingtypeandtorsiontype
AT juichetsai electrothermallyactuatedmicromirrorswithbimorphactuatorsbendingtypeandtorsiontype