Modeling and Optimization of Microparticle Structure for Dielectrophoresis Manupulation

2014 Fiscal Year Final Research Report

• Project/Area Number: 24656231
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Electron device/Electronic equipment
• Research Institution: Osaka University
• Principal Investigator: TOSHIMASA Matsuoka 大阪大学, 工学(系)研究科(研究院), 准教授 (80324820)
• Co-Investigator(Kenkyū-buntansha): FUJII Shuji 大阪工業大学, 工学部, 准教授 (70434785)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: センシング

Outline of Final Research Achievements

For microparticle manipulation using dielectrophoresis (DEP) phenomenon, precise model of the microparticle is required. In medium, the electrical double layer is formed on the surface of the microparticle. The microparticle model including the electrical double layer can explain the measured frequency dependence of DEP for the polystyrene microparticles and so on. In addition, to avoid heating from the DEP chip, a circuit with different frequencies for the DEP and AC wireless power transfer has been developed. It has on-chip oscillator for the adequate low-frequency DEP driving signal, and improves the wireless power transfer with higher frequency.

Free Research Field

半導体デバイス，半導体集積回路