Symposium S, 'Microelectromechanical Systems - Materials and Devices IV', held November 29-December 3 at the 2010 MRS Fall Meeting in Boston, Massachusetts, focused on micro- and nanoelectromechanical systems (MEMS/NEMS), technologies which were spawned from the fabrication and integration of small-scale mechanical, electrical, thermal, magnetic, fluidic and optical sensors and actuators with micro-electronic components. MEMS and NEMS have enabled performance enhancements and manufacturing cost reductions in a number of applications, including optical displays, acceleration sensing,...