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This paper presents a methodology together with a characterisation system for rapidly and quantitatively evaluating the lifetime and reliability of Electro-Wetting-on-Dielectric (EWOD) microfluidic devices. By studying the contact angle (CA) change when electrowetting forces are applied on the test structure, the number of times of a droplet can be switched between relaxed and actuated states can be characterised. This paper describes the development of an automated measurement system together with test structures designed to quickly characterise and optimise EWOD dielectric layer compositions. This enables the rapid determination of the driving voltage that results in the longest lifetime of the device, providing the tools to optimise both the process, architecture and the voltage driving scheme.
|Title of host publication||2011 IEEE International Conference on Microelectronic Test Structures (ICMTS)|
|Place of Publication||NEW YORK|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Number of pages||5|
|Publication status||Published - Apr 2011|
|Event||24th IEEE International Conference on Microelectronic Test Structures (ICMTS) - Amsterdam|
Duration: 4 Apr 2011 → 7 Apr 2011
|Conference||24th IEEE International Conference on Microelectronic Test Structures (ICMTS)|
|Period||4/04/11 → 7/04/11|
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RASOR-Radical Solutions for Researching the Proteome: Interdisciplinary Research Collaboration in proteomic technologies
1/08/05 → 31/10/11