Tails projecting from an electrical component that lies on a circuit board surface, are terminated to traces on a multi-layer circuit board in a manner that minimizes the disadvantages of long through hole soldering and of surface mount techniques. The microsensor includes a support, an insulating layer on the support, a first electrode on the insulating layer, a ferroelectric layer having at least a metal on the insulating layer and the first electrode, and at least a second electrode on the ferroelectric layer. These components except a part thereof are enclosed by a resin mold package. Also disclosed is a method of treating a TNF-alpha related disease andor disorder using such a compound. If the amplitude of voltage change detected in a third period U after the specific period has passed goes to a second threshold value R, a decision cancellation unit 41 determines that noise is contained in the voltage change.