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Michael J. Cima. Tupper, Malinda M., 1974- Massachusetts Institute of Technology. Dept. of Materials Science and Engineering. Massachusetts Institute of Technology. Department of Materials Science and Engineering 2005-06-02T16:39:32Z 2005-06-02T16:39:32Z 2004 http://hdl.handle.net/1721.1/17675 55850903 Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2004. "February 2004." Includes bibliographical references (p. 146-152). The micron-scale manufacturing industry has grown to hundreds of billions of dollars since the advent of the transistor in 1947. Increasing demands for integration of surface mount components, greater use of portable electronic devices, and miniaturized medical diagnostic devices have given rise to the need for methods of fabricating and assembling micron-scale discrete components. Development of reliable non-contact assembly methods requires thorough understanding of electro-mechanics, surface adhesion, and gravitational forces acting on micron- scale objects. The impact of such a study will spread beyond microelectronics, and will also have broad significance in the development of micro-electromechanical systems (MEMS) for diverse applications such as biological assays, drug delivery devices, and tools for high throughput combinatorial materials development. This thesis will discuss methods for and challenges in fabrication, manipulation, and assembly of discrete micron-scale objects. The impact of these issues will be illustrated for the development of a micro-dispensing system used to manipulate microgram quantities of dry granular substances for combinatorial materials development. This method provides a model system to explore the forces on micron-scale objects, and is important in its own right as it will introduce a new range of materials that may benefit from combinatorial development. The applicability of traditional methods for computing dielectrophoretic forces on micron scale objects in the presence of spatially non-uniform electric fields will be discussed for the case of closely-spaced, interacting spheres. (cont.) A dipole approximation model will be presented to quantitatively illustrate the limitations of existing techniques for calculating these forces, and to aid in explaining the observed motion of multiple interacting particles. by Malinda M. Tupper. Ph.D. 152 p. 6608785 bytes 6608593 bytes application/pdf application/pdf eng Massachusetts Institute of Technology M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 Materials Science and Engineering. Fabrication and assembly of micron-scale ceramic components Thesis application/pdf false Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="42f7a97e-1d83-4344-8f30-26cd688c9d9f"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Fabrication and assembly of micron-scale ceramic components</Title> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>2004</PublicationDate> <Authors> <Author> <DisplayName>Tupper, Malinda M., 1974-</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://dspace.mit.edu/handle/1721.1/7582</License> <Keyword>Materials Science and Engineering.</Keyword> <Abstract>The micron-scale manufacturing industry has grown to hundreds of billions of dollars since the advent of the transistor in 1947. Increasing demands for integration of surface mount components, greater use of portable electronic devices, and miniaturized medical diagnostic devices have given rise to the need for methods of fabricating and assembling micron-scale discrete components. Development of reliable non-contact assembly methods requires thorough understanding of electro-mechanics, surface adhesion, and gravitational forces acting on micron- scale objects. The impact of such a study will spread beyond microelectronics, and will also have broad significance in the development of micro-electromechanical systems (MEMS) for diverse applications such as biological assays, drug delivery devices, and tools for high throughput combinatorial materials development. This thesis will discuss methods for and challenges in fabrication, manipulation, and assembly of discrete micron-scale objects. The impact of these issues will be illustrated for the development of a micro-dispensing system used to manipulate microgram quantities of dry granular substances for combinatorial materials development. This method provides a model system to explore the forces on micron-scale objects, and is important in its own right as it will introduce a new range of materials that may benefit from combinatorial development. The applicability of traditional methods for computing dielectrophoretic forces on micron scale objects in the presence of spatially non-uniform electric fields will be discussed for the case of closely-spaced, interacting spheres.</Abstract> <Abstract>(cont.) A dipole approximation model will be presented to quantitatively illustrate the limitations of existing techniques for calculating these forces, and to aid in explaining the observed motion of multiple interacting particles.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>