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Title: Microelectromechanical gyroscope

Patent ·
OSTI ID:872717

A gyroscope powered by an engine, all fabricated on a common substrate in the form of an integrated circuit. Preferably, both the gyroscope and the engine are fabricated in the micrometer domain, although in some embodiments of the present invention, the gyroscope can be fabricated in the millimeter domain. The engine disclosed herein provides torque to the gyroscope rotor for continuous rotation at varying speeds and direction. The present invention is preferably fabricated of polysilicon or other suitable materials on a single wafer using surface micromachining batch fabrication techniques or millimachining techniques that are well known in the art. Fabrication of the present invention is preferably accomplished without the need for assembly of multiple wafers which require alignment and bonding, and without piece-part assembly.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
US 5994801
OSTI ID:
872717
Country of Publication:
United States
Language:
English

References (7)

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Micromechanics via x‐ray assisted processing
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journal July 1994
Fabrication of microstructures with high aspect ratios and great structural heights by synchrotron radiation lithography, galvanoforming, and plastic moulding (LIGA process) journal May 1986
LIGA process: sensor construction techniques via X-ray lithography conference January 1988
Gas-lubricated microbearings for microactuators journal October 1992
Laterally Driven Polysilicon Resonant Microstructures journal November 1989
Microfabricated actuators and their application to optics conference May 1995