Development of sensing transducers on compact disc substrates

Abstract

Here is reported about the development of gold electrodes for sensors starting from high fidelity compact discs (CDs) as substrates. The CDs were chemically etched to remove the protective layers and to expose the metal one. Several transducer layouts were designed by means of electronic CAD, and then, realized with a LPKF rapid prototyping system (Protomat S103). The gold CDs transducers were employed in the realization of resistive sensors and electrochemical ones. Some examples of the use of the prototypes developed are also reported.