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Advanced SOI semiconductor structures for micro-dose biological samples handling

C. RAVARIU1, G. ALECU2,* , A. BONDARCIUC2, F. BABARADA1

Affiliation

  1. Politehnica University Bucharest, Micro-Opto-Nano-Electronics Department, Splaiul Independentei 313, Romania
  2. National Institute for Research and Development in Electrical Engineering ICPE-CA, Splaiul Unirii 313, Bucharest, Romania

Abstract

The micro and nano-fluidics represents a milestone in the actual engineering and research area. Therefore the conceptual study of the structures by simulations is an important stage in design. The classical pumps with movable valves suffer from the fatigue of the movable parts, having a reduced lifetime and destroying some biological macromolecules. A valve-less micropump with a SOI membrane and a diffuser/nozzle element is in agreement with the silicon technology, being necessary special etching processes. This work proposes a micropump integrated in a SOI structure, dedicated to the bio-substances handling, as micro-dose of liquids. The simulations revealed the silicon membrane actuation, besides to the fluid flow through the valves. In this way, a designing method aided by simulations, was established as a further original issue of this paper.

Keywords

Microfluidics, Simulations, Membrane, MEMS, SOI.

Citation

C. RAVARIU, G. ALECU, A. BONDARCIUC, F. BABARADA, Advanced SOI semiconductor structures for micro-dose biological samples handling, Optoelectronics and Advanced Materials - Rapid Communications, 4, 9, September 2010, pp.1375-1378 (2010).

Submitted at: Aug. 3, 2010

Accepted at: Sept. 15, 2010