Capacitive Sensing Electrodes

  • Ebrahim Ghafar-Zadeh
  • Mohamad Sawan
Part of the Analog Circuits and Signal Processing book series (ACSP)


The capacitive sensing electrodes on the top of a CMOS chip serve as an interface between the microelectronic readout system and the biological/chemical analyte. These electrodes are directly exposed to the analyte or an intermediate layer which will be described in Chapter 3 (Fig. 2.1). The sensing electrode can be realized by a standard CMOS process. However for some applications, further micromachining procedure may be necessary.


Silicon Nitride Gold Electrode Metal Layer Passivation Layer Parasitic Capacitance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Department of Electrical EngineeringEcole Polytechnique de MontréalMontrealCanada

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