Self-assembled microlens on light emitting diodes using hydrophilic effect
Journal
Proceedings of SPIE - The International Society for Optical Engineering
Journal Volume
8123
Date Issued
2011
Author(s)
Wei, H.-C.
Abstract
In this paper, we propose a self-assembled microlens arrays (MLAs) on top of light emitting diodes (LEDs) based on hydrophilic effect by UV/ozone treatment. After hydrophilic zones were produced by UV/ozone treatment, the substrate with hydrophilic zones was dipped in and out of diluted SU-8 solution with slow and constant velocity. Finally, MLA was formed after UV curing and baking. By this approach, the fabrication is low cost and low time-consuming.
Type
conference paper