Abstract: A device has a microelectromechanical system (MEMS) component with at least one surface and a coating disposed on at least a portion of the surface. The coating has a compound of the formula M(CnF2n+1Or), wherein M is a polar head group and wherein n?2r. The value of n may range from 2 to about 20, and the value of r may range from 1 to about 10. The value of n plus r may range from 3 to about 30, and a ratio of n:r may have a value of about 2:1 to about 20:1.

Abstract: An object is to manufacture a semiconductor device including an oxide semiconductor at low cost with high productivity in such a manner that a photolithography process is simplified by reducing the number of light-exposure masks. In a method for manufacturing a semiconductor device including a channel-etched inverted-staggered thin film transistor, an oxide semiconductor film and a conductive film are etched using a mask layer formed with the use of a multi-tone mask which is a light-exposure mask through which light is transmitted so as to have a plurality of intensities. In etching steps, a first etching step is performed by dry etching in which an etching gas is used, and a second etching step is performed by wet etching in which an etchant is used.