Abstract
A simple and ready to use approach for combining silicon superhydrophobic surfaces with ElectroWetting On Dielectrics (EWOD) phenomenon is presented. The substrate is fabricated using a two-phases process, where a first optical lithography step is used to define the position of the micro-pillars and a second one exploits the characteristics of reactive ion etch Bosch technique. The fabricated substrate has been then coupled with a micro-manipulator tip to show the local changes mechanism of contact angle by applying very low DC voltages in the range from 5 to 30 V. The device can be of interest for a wide variety of microfluidics applications related to the biomedical field.
Original language | English (US) |
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Pages (from-to) | 651-654 |
Number of pages | 4 |
Journal | Microelectronic Engineering |
Volume | 98 |
DOIs | |
State | Published - Oct 2012 |
Externally published | Yes |
Keywords
- EWOD
- Micromanipulator
- Micropillars
- Silicon
- Superhydrophobicity
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Electrical and Electronic Engineering