An architecture and method of providing minimal functionality multimedia devices having the capability of communication across networks, which provides a simple and low-MIPS platform to build computer-based devices. Using optical metrology, profiles of post-barrier deposition grating and post-seed deposition grating can be measured non-destructively. Each remote antenna circuit includes a transmit amplifier unit that amplifies the transmit signal, a receive amplifier unit that amplifies a receive signal, and control unit that receives the control signal. The taper hole portion has an inner surface of a truncated conical shape and has the smallest diameter at one end thereof. The rotor blade includes a plurality of blades to increase a floating force applied to a slider that records or reads data on or from the disk-shaped data storing medium by increasing a speed of an airflow in an inner region of the disk-shaped data storing medium. The gate terminal of the first additional FET is supplied with a selection signal through a selection signal supply line to turn on the first additional FET, when the memory cell is selected.