IC CARD

摘要

An IC card comprising a data memory section (503) consisting of a plurality of storage elements. The storage element comprises a semiconductor substrate, a semiconductor film arranged on a well region or an insulator provided in the semiconductor substrate, a gate insulation film formed on the semiconductor film arranged on the semiconductor substrate, the well region provided in the semiconductor substrate, or the insulator, a single gate electrode formed on the gate insulation film, two memory function bodies formed on the opposite sides of the sidewall of the single gate electrode, a channel region arranged beneath the single gate electrode, and diffusion layer regions arranged on the opposite sides of the channel region. A low-cost IC card is provided by mounting a memory employing storage elements which can be scaled down furthermore.