A microelectromechanical system includes a substrate, a transducer supported on the substrate and a conductor layer, which is also supported on the substrate and electrically connected to the transducer. The transducer includes a portion made of silicon or a silicon compound. The conductor layer is made of a refractory conductor, which includes, as its main ingredient, at least one element selected from the group consisting of copper, gold and silver. At least a portion of the conductor layer is located at an intermediate level between the silicon or silicon compound portion of the transducer and the substrate.

 
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