An apparatus comprising a microelectromechanical system (MEMS) device. The
MEMS device includes a substrate having an anchoring pad thereon and a
structural element. The structural element has a beam that includes a
first part and a second part. The first part is attached to both the
anchoring pad and to the second part. The second part is movable with
respect to the substrate and made of an electrically conductive material.
Additionally, at least one of the following conditions hold: the first
part is made of a material having: a first yield stress that is greater
than a second yield stress of the electrically conductive material of the
second part; a fatigue resistance that is greater than a second fatigue
resistance of the electrically conductive material of the second part;
or, a creep rate that is less than a second creep rate of the
electrically conductive material of the second part.