A semiconductor device comprises a semiconductor region of the first conduction type. The thinner composition may have a proper volatility and an improved ability to dissolve various types of photosensitive materials, and thus the thinner composition may be usefully employed in an edge bead rinse process, a rework process or a pre-wetting process. In addition, by integrating the modulator and display devices, the overall size of the spatial light modulator may be reduced in some embodiments. Two or more of the operating members are moved to selectively provide desired connections of circuit paths. A particular embodiment includes obtaining an advertisement; defining a set of features of the advertisement; generating a predicted click through rate corresponding to the advertisement based in part on the set of features; ranking the advertisement based on the generated click through rate; and serving the advertisement based on the ranking.