Provided are contact photomasks and methods using such photomasks for fabricating semiconductor devices and forming contact plugs on portions of active regions exposed between gate lines. The compounds are useful as scaffolds for constructing combinatorial libraries. Latency in the individual queries is absorbed by the proxy servers. The inflating and welding device is located after the means provided within said film and before the traction means for drawing said tubular film through the inflating and welding device. The terminal further includes a storage unit storing a setting program set by the setting operation unit and a terminal control unit for outputting a control signal on an onoff operation of the lamps, either upon pushing the operation switch unit or according to the setting program.