Microfabricated torsional actuator using self-aligned plastic deformation

Jongbaeg Kim; Hyuck Choo; Liwei Lin; R. S. Muller

doi:10.1109/SENSOR.2003.1216940

Microfabricated torsional actuator using self-aligned plastic deformation

Jongbaeg Kim, Hyuck Choo, Liwei Lin, R. S. Muller

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

18 Citations (Scopus)

Abstract

We describe microfabricated torsional actuators that are made using self-aligned plastic deformation in a batch process. The microactuators are formed in single-crystal silicon and driven by vertical comb-drives. Structures have been built that resonate at frequencies between 1.90 and 5.33 kHz achieving scanning angles up to 19.2 degrees with driving voltages of 40 V_dc plus 13 V_ac. After continuous testing of 5 billion cycles at the maximum scanning angle, there appears to be no observable degradation or fatigue of the plastically deformed silicon tors ion bars. We present measured results obtained with MEMS scanning mirrors; the actuators may be useful for many other MEMS applications.

Original language	English
Title of host publication	TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1015-1018
Number of pages	4
ISBN (Electronic)	0780377311, 9780780377318
DOIs	https://doi.org/10.1109/SENSOR.2003.1216940
Publication status	Published - 2003 Jan 1
Event	12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003 - Digest of Technical Papers - Boston, United States Duration: 2003 Jun 8 → 2003 Jun 12

Publication series

Name	TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers
Volume	2

Other

Other	12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003 - Digest of Technical Papers
Country	United States
City	Boston
Period	03/6/8 → 03/6/12

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All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Cite this

Kim, J., Choo, H., Lin, L., & Muller, R. S. (2003). Microfabricated torsional actuator using self-aligned plastic deformation. In TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers (pp. 1015-1018). [1216940] (TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SENSOR.2003.1216940

Kim, Jongbaeg ; Choo, Hyuck ; Lin, Liwei ; Muller, R. S. / Microfabricated torsional actuator using self-aligned plastic deformation. TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers. Institute of Electrical and Electronics Engineers Inc., 2003. pp. 1015-1018 (TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers).

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Kim, J, Choo, H, Lin, L & Muller, RS 2003, Microfabricated torsional actuator using self-aligned plastic deformation. in TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers., 1216940, TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers, vol. 2, Institute of Electrical and Electronics Engineers Inc., pp. 1015-1018, 12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003 - Digest of Technical Papers, Boston, United States, 03/6/8. https://doi.org/10.1109/SENSOR.2003.1216940

Microfabricated torsional actuator using self-aligned plastic deformation. / Kim, Jongbaeg; Choo, Hyuck; Lin, Liwei; Muller, R. S.

TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers. Institute of Electrical and Electronics Engineers Inc., 2003. p. 1015-1018 1216940 (TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - We describe microfabricated torsional actuators that are made using self-aligned plastic deformation in a batch process. The microactuators are formed in single-crystal silicon and driven by vertical comb-drives. Structures have been built that resonate at frequencies between 1.90 and 5.33 kHz achieving scanning angles up to 19.2 degrees with driving voltages of 40 Vdc plus 13 Vac. After continuous testing of 5 billion cycles at the maximum scanning angle, there appears to be no observable degradation or fatigue of the plastically deformed silicon tors ion bars. We present measured results obtained with MEMS scanning mirrors; the actuators may be useful for many other MEMS applications.

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Kim J, Choo H, Lin L, Muller RS. Microfabricated torsional actuator using self-aligned plastic deformation. In TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers. Institute of Electrical and Electronics Engineers Inc. 2003. p. 1015-1018. 1216940. (TRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers). https://doi.org/10.1109/SENSOR.2003.1216940

Access to Document

10.1109/SENSOR.2003.1216940