BIOSENSOR AND BIOSENSOR PRODUCTION METHOD

摘要

Provided is a technology that prevents a working electrode and a counter electrode from peeling off an insulating substrate, upon which an electrode layer is formed. In an area exposed by a cavity (104) in a conductive layer (112), notches (113a) are formed in the conductive layer (112) in such a manner as to cross the cavity (104) between one end of a working electrode (101), a counter electrode (102) and a sensing electrode (103), which are exposed by the cavity (104), and a sample introduction port (104a). Consequently, even if the conductive layer (112) in the area of a slit (105) where a spacer layer (120) is not laminated peels off the edge on the sample introduction port (104a) side of an electrode layer (110) (insulating substrate (111)) inside the cavity (104), there is no risk of the conductive layer (112) peeling beyond the notches (113a) formed in such a manner as to cross the cavity (104); thus, one end of the working electrode (101), the counter electrode (102) and the sensing electrode (103), which are exposed by the cavity (104), can be prevented from peeling off the electrode layer (110).