Capillary-driven self-assembly of microchips on oleophilic/oleophobic patterned surface using adhesive droplet in ambient air

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

Abstract

This letter describes a capillary-driven self-assembly technique using oleophilic/oleophobic patterned surface and adhesive in ambient air environment. We use a topographical microstructure of porous ormocer functionalized with a fluorinated trichlorosilane for the oleophobic area and gold patterns for the oleophilic area. The resulted oleophilic/oleophobic patterns show significant wettability contrast for adhesive (Delo 18507), with a contact angle of 119° on oleophobic part and 53° on the oleophilic part. Self-alignment of SU-8 microchips on the oleophilic/oleophobic patterns has been demonstrated. The results provide a promising solution for self-alignment of microparts using commercial adhesives in ambient air environment.

Details

Original languageEnglish
Article number034104
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume99
Issue number3
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

Download statistics

No data available

ID: 876705