A method of manufacturing a bipolar junction transistor results in an integrated polysilicon base contact and field plate element minimally spaced from a polysilicon emitter contact by using a single mask to define respective openings for these elements. In the IC card, a controller IC, which is connected to a flash memory, includes a voltage pull-down detector, a mode controller, a USB-mode interface controller, a MS-mode interface controller, and an MMCSD-mode interface controller. The influent column first end may be in fluid communication with an influent liquid source. The transceiver may also be dynamically analyzed and adjusted during operation as operation frequency changes. An electrical coil is used to induce a magnetic field in a coil pole to magnetically couple a coil armature to an intermediate plate and the intermediate plate to an activation plate to energize the ball ramp mechanism.