Invention Grant
- Patent Title: Low-voltage, large displacement stepping actuator and method for fabricating the same
- Patent Title (中): 低电压,大位移步进致动器及其制造方法
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Application No.: US12172323Application Date: 2008-07-14
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Publication No.: US07919901B2Publication Date: 2011-04-05
- Inventor: Mehmet Akif Erismis , Hercules Pereira Neves , Chris Van Hoof , Robert Puers
- Applicant: Mehmet Akif Erismis , Hercules Pereira Neves , Chris Van Hoof , Robert Puers
- Applicant Address: BE Leuven BE Leuven
- Assignee: IMEC,Katholieke Universiteit Leuven, K.U. Leuven R&D
- Current Assignee: IMEC,Katholieke Universiteit Leuven, K.U. Leuven R&D
- Current Assignee Address: BE Leuven BE Leuven
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Priority: EP07013866 20070716; EP08156898 20080526
- Main IPC: H02N1/00
- IPC: H02N1/00

Abstract:
The current invention provides a stepping actuator, achieving large range up to ±35 μm with low operating voltages of 15V or lower and large output forces of up to ±110 μN. The actuator has an in-plane-angular deflection conversion which allows achieving step sizes varying from few nanometers to few micrometers with a minor change in the design. According to certain embodiments of the invention, the stepping actuator comprises a geometrical structure with a displacement magnification ratio of between 0.15 and 2 at operating voltages of 15V or lower. The present invention also provides a method for forming such stepping actuators.
Public/Granted literature
- US20090019847A1 Stepping Actuator and Method of Fabrication Public/Granted day:2009-01-22
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