| 摘要 |
PURPOSE:To reduce the amount of a metal melted, facilitate setting pressing and heating conditions for an FPC and lower the possibility of electrical short- circuit failures, by providing a metallic layer comprising an easily solderable metal or an allow thereof having a melting point higher than that of a material used for a terminal part for external connection, on a conductor layer of a terminal part provided adjacently to a head surface. CONSTITUTION:A glaze layer 2 and a heating resistor layer 3 are provided in predetermined film thicknesses on an insulating substrate 1, and the conductor layer 4 is provided by vapor deposition of aluminum or an aluminum alloy. A conductive pattern of the layer 4 is provided by repeated masking, and an oxidation-resistant layer 6 and an abrasion-resistant layer 7 are provided in desired film thicknesses by sputtering. A conductive pattern of the layer 4 at the terminal part 11 is provided at the time of providing a conductive pattern on the head surface 12. Connection with the FPC for electrical connection with an external circuit is performed by soldering. At the terminal part, the metallic layer of an easily solderable metal or an alloy thereof having a melting point higher than that of the material used for terminal parts of the FPC is provided on the conductor layer. |
