PURPOSE: To enable a terminal to be stably connected onto an electrode through simple work by solder-plating the surface of a terminal member beforehand, causing the terminal member to abut an electrode part, and heating them to electrically connect the terminal member and the electrode part.

CONSTITUTION: A resistor 6, electrodes 6a, 6b, a collector electrode 7, and an elastic body 8 are formed on the surface of a substrate 1. Terminals 9, 10, 11 consist of a copper alloy, etc., and are connected to the electrodes 6a, 6b by solder-plating the extremities of the terminals 9, 10, 11 beforehand, and causing these solder-plated parts to abut on the electrodes 6a, 6b, 7, and fusing the plated layers through heating by Joule heat or a heater to carry out soldering. For the substrate 1, alumina is preferably used, and as the electrodes 6a, 6b, 7, silver or silver-palladium alloy is preferably used. Therefore, in soldering, the solder is not required to be supplied separately, so that the work is simplified, and is suitable for continuous production. Further, the adhered solder amount is made constant, so that the possibility that the excessive solder flows out to exert adverse influence upon the other parts is eliminated and stable connection to a thin film electrode can be achieved.