According to the following disclosure, disclosed is a semiconductor device including: an internal circuit configured to receive and output a signal current; a current mirror unit outputting a copied current corresponding to the signal current; and a test pad from which the copied current is taken out. A feeding path introduces the photo film to the winder shaft. The system allows the ready linking and access of consumer transaction related information including purchase history, credit information, merchandise details and similar information. Additionally, search results are compared to an ontology of partial topics to identify relevant partial topics, which are named.