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A Process Planning Method for Thin Film Mask Projection Micro-Stereolithography

[+] Author Affiliations
Amit S. Jariwala, Fei Ding, Xiayun Zhao, David W. Rosen

Georgia Institute of Technology, Atlanta, GA

Paper No. DETC2009-87532, pp. 685-694; 10 pages
doi:10.1115/DETC2009-87532
From:
  • ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2: 29th Computers and Information in Engineering Conference, Parts A and B
  • San Diego, California, USA, August 30–September 2, 2009
  • Conference Sponsors: Design Engineering Division and Computers in Engineering Division
  • ISBN: 978-0-7918-4899-9 | eISBN: 978-0-7918-3856-3
  • Copyright © 2009 by ASME

abstract

In this study, a process planning method is presented for the Mask Projection Micro-Stereolithography process with the ability to cure a film of various thicknesses on flat or curved transparent substrates. In this process, incident radiation, patterned by a dynamic mask, passes through a transparent substrate to cure photopolymer resin layers that grow progressively from the substrate surface. When compared to existing Stereolithography techniques, this technique eliminates the necessity of recoating, reducing process time and improving accuracy. A regression model is adopted in this process plan to accurately control the curing front on the substrate. An existing Mask Projection Micro-Stereolithography process planning method is extended to account for radiation transmission through the substrate. The models are verified using experiments.

Copyright © 2009 by ASME

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