To provide a method by which a semiconductor device including a thin film transistor with excellent electric characteristics and high reliability is manufactured with a small number of steps. The two are stuck by an adhesive defining a homogenous intermediate layer without the formation of fragile zones due to the absence of air bubbles since the contact face of the ceramic base is domed, the central point being higher than the rest. A delay-sum channel includes a discrete delay line that introduces a known delay after each sensor, creating a time signature for the sensor, followed by a summing circuit that adds the delayed signals.