A device for protecting data stored in a static random access memory is provided. The polymer, being soluble in an organic solvent, can be formed in film even on a substrate high in the water repellency; that is, it can be easily formed in film on a TFT substrate and the like indispensable for an active matrix display device. The invention also relates to methods for manufacturing such gelatinous coated dosage forms. In addition, strategies for purging condensed liquid from chemical reactor systems are also described. A gate is disposed on the second III-V compound layer. The antenna device includes one extension to receive and transmit signals of a frequency, and another extension to receive and transmit signals of a different frequency.