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Mechanical Engineering Commons

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2011

Aerospace Engineering

Aerospace Engineering Patents

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Full-Text Articles in Mechanical Engineering

Apparatus For Focused Electric-Field Imprinting For Micron And Sub-Micron Patterns On Wavy Or Planar Surfaces, Abhijit Chandra, Ashraf F. Bastawros, Ambar K. Mitra, Charles A. Lemaire Aug 2011

Apparatus For Focused Electric-Field Imprinting For Micron And Sub-Micron Patterns On Wavy Or Planar Surfaces, Abhijit Chandra, Ashraf F. Bastawros, Ambar K. Mitra, Charles A. Lemaire

Aerospace Engineering Patents

A Focused Electric Field Imprinting (FEFI) process and apparatus provides a focused electric field to guide an unplating operation and/or a plating operation to form very fine-pitched metal patterns on a substrate. The process is a variation of the electrochemical unplating process, wherein the process is modified for imprinting range of patterns of around 2000 microns to 20 microns or less in width, and from about 0.1 microns or less to 10 microns or more in depth. Some embodiments curve a proton-exchange membrane whose shape is varied using suction on a backing fluid through a support mask. Other ...