The present invention provides a substrate having thereon a patterned small molecule organic semiconductor layer. Brush holder assemblies including a mounting block and a brush holder are disclosed. The context files are processed by various context processors, which use the instructions therein to provide various pre-processing, post-processing, and search engine control operations. The second electrode is formed over a surface of the first variable resistance thin film. If it is determined to hold the funds, an amount of the funds to hold and a time period in which to hold the amount of funds may be determined.