Microfabrication technology can also be used to make mechanical components $($such as beams and

membranes$).$ When combined with electronics, this enables the technology called micro$-$

electromechanical systems $($MEMS$).$ Let us consider a $Si$ beam that is clamped on both ends to a Si

wafer $($as presented in the figure below$).$ Sketch out the microfabrication steps you would use

starting with a Si wafer to achieve such a beam.