Provided is a biochemical analyzer in which a microfluidic biochemical assay may be performed. The method involves a high energy, high dose implant through openings in a masking layer and through channel regions of the p- and n-wells, into the insulator layer, thereby creating a borophosphosilicate glass diffusion source within the insulation layer underlying the gate regions of the SOI wafer substantially between the source and drain. In addition, the coordinate input device also includes the operation surface formed in a convex shape which is used for performing a coordinate input operation by sliding the operating member thereon. In one example, the receiver of the RFID reader compares a portion of the signals from the radio frequency source with the received signal from the directional coupler to receive data from RF tags. When deployed in the curved vessel of the patient, the heat set curve of the stent closely conforms to the curvature in the vessel and minimizes trauma and stress to the vessel.