The present invention relates to a semiconductor device including a thin film transistor comprising a microcrystalline semiconductor which forms a channel formation region and includes an acceptor impurity element, and to a manufacturing method thereof. The adapting device includes an output adapting terminal and an input adapting terminal respectively corresponding to the output terminal and the input terminal, in which corresponding pins of the corresponding terminals have identical potential, and at least one corresponding pair of pins of the output adapting terminal and the input adapting terminal have different potential. The mounting sleeve is mounted pivotally to the shell and is selectively pivoted into the shell. In particular, a preferable cerebral nerve cell neogenesis agent contains, as an active ingredient, a biological tissue extracted plasmalogen mainly including an ethanolamine plasmalogen and a choline plasmalogen. The present invention contemplates a number of physical configurations whereby the insulator ring is urged into, and away from, its masking of the conductive edge ring.