A semiconductor device having an active region is formed in a layer provided on a semiconductor substrate. The elastic layer is made of elastic strands having a decitex of about 600 or less. The catheter is provided with a more rigid malleable reinforcement member at the distal portion thereof, also extending within the fluid delivery lumen and positioned proximal the coil member within the fluid delivery lumen. The network approximates the rewards observed to the expected rewards as an appraiser. The control unit determines whether a corresponding device sample has a defect based on a first measurement value according to measurement by the testing unit when the bias is applied to each of the plurality of samples.