Microchannel molding: A soft lithography-inspired approach to micrometer-scale patterning

Christopher R. Martin, Ilhan A. Aksay

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

A new patterning technique for the deposition of sol-gels and chemical solution precursors was developed to address some of the limitations of soft lithography approaches. When using micromolding in capillaries to pattern precursors that exhibit large amounts of shrinkage during drying, topographical distortions develop. In place of patterning the elastomeric mold, the network of capillary channels was patterned directly into the substrate surface and an elastomer membrane is used to complete the channels. When the wetting properties of the substrate surfaces were carefully controlled using self-assembled monolayers (SAMs), lead zirconate titanate thin films with nearly rectangular cross-sections were successfully patterned. This technique, called microchannel molding (μCM), also provided a method for aligning multiple layers such as bottom electrodes for device fabrication.

Original languageEnglish (US)
Pages (from-to)1995-2003
Number of pages9
JournalJournal of Materials Research
Volume20
Issue number8
DOIs
StatePublished - Aug 1 2005

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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