Accession Number : ADA336753

Title :   Self Assembly of Microstructures

Descriptive Note : Master's thesis

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Kladitis, Paul E.

PDF Url : ADA336753

Report Date : DEC 1997

Pagination or Media Count : 193

Abstract : Four areas are investigated in this research: erecting microstructures normal to the substrate plane without direct human intervention (self assembled), providing low resistance electrical connections to the erected microstructure, realizing circular motion normal to the substrate plane, and implementing a micro-robot. The designs in this research concentrate on erecting and providing power to a leg designed for use with the micro-robot. The leg and the attached low resistance electrical connectors were not self assembled because the accompanying actuators were not powerful enough. However, the novel connectors provide the most practical, versatile, and lowest possible resistance connections for the MUMPs fabrication process. The micro-robot was a 1 cm by 1 cm by 0.125 mm thick silicon chip with 96 legs micro-machined on one side. The legs were able to support the weight of the chip but could not move the chip. The gold wires used to remotely power the legs, restricted the chip's movement. The chip was turned over, and used as a micro-position to transport a 1 cm by 1 cm by 0.023 mm piece of kapton film A vertically deflecting actuator was used to bump the edge of a 222 mm diameter wheel, causing circular motion normal to the substrate.

Descriptors :   *MICROSTRUCTURE, *ASSEMBLY, ROBOTICS, THESES, SUBSTRATES, ELECTROMECHANICAL DEVICES, SILICON, MICROELECTRONICS, ELECTRICAL RESISTANCE, ACTUATORS, MICROMECHANICS, ELECTRIC CONNECTORS, HYBRID CIRCUITS.

Subject Categories : Electrical and Electronic Equipment
      Mfg & Industrial Eng & Control of Product Sys
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE