Fabrication of an electrothermally actuated electrostatic microgripper

S. H. Lee, Kwang Cheol Lee, S. S. Lee, Hyeon Seok Oh

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

18 Scopus citations

Abstract

A novel electrostatic microgripper, which can handle micro objects with the electrostatic force, is designed and fabricated. It consists of gripping part with one inner and two outer electrodes, and releasing part with an electrothermal actuator. It grips micro objects using electric field generated between the electrodes, and releases them using the backward motion of inner electrode with electrothermal actuation. The backward motion of inner electrode breaks the electric field and rapidly reduces the remaining charges of objects. The graspless work shows the safe object handling method and also suggests the solution for the releasing problem. The microgrippers are fabricated with 20 μm and 40 μm thick SOI wafers, and they successfully grip glass beads with 170 μm diameter at 250 V and 100 V, respectively.

Original languageEnglish
Title of host publicationTRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages552-555
Number of pages4
ISBN (Electronic)0780377311, 9780780377318
DOIs
StatePublished - 2003
Event12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003 - Digest of Technical Papers - Boston, United States
Duration: 8 Jun 200312 Jun 2003

Publication series

NameTRANSDUCERS 2003 - 12th International Conference on Solid-State Sensors, Actuators and Microsystems, Digest of Technical Papers
Volume1

Conference

Conference12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003 - Digest of Technical Papers
Country/TerritoryUnited States
CityBoston
Period8/06/0312/06/03

Keywords

  • Adhesives
  • Electrodes
  • Electrostatic actuators
  • Electrothermal effects
  • Fabrication
  • Gravity
  • Grippers
  • Piezoelectric actuators
  • Probes
  • Shape

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