New Inks for the Direct Drop-on-Demand Fabrication of Polymer Lenses

The advent of cell phone cameras extensively pushed market needs for micro lenses and supported developments like the Wafer-Level-Camera Technology [1]. Different optical applications and patterning methods for micro lenses require different sets of materials. Micro ink-jet printing (micro IJP) is an alternative and innovative direct patterning method for the manufacture of micro optical systems. We demonstrate the development of two material compositions – an epoxy resin and a sol–gel based material – which are used as inks with physical parameters adapted to the patterning technique so that stable and reproducible drops in both continuous and drop-on-demand (DoD) mode can be generated. The manufacturing of micro lenses, the lens characterization, their geometry and their optical properties are presented.


Published in:
36th International Conference on Micro & Nano Engineering (MNE), 88, 8, 2174–2179
Presented at:
36th International Conference on Micro & Nano Engineering (MNE), Genoa, Italy, September 19-22, 2010
Year:
2010
Publisher:
Microelectronic Engineering
Keywords:
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 Record created 2010-08-12, last modified 2018-03-17

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