An antenna module includes a frequency modulation radiator and a T-coil radiator electronically connecting to the frequency modulation radiator. The backlight module includes a frame body and an optical plate. Thus, stress loads that occur to peripheral portions of the semiconductor device due to thermal expansion differences and thermal contraction differences among individual members caused by heating and cooling processes during a mounting operation are relaxed, by which internal breakdown of the semiconductor device mounted structure is avoided. Another embodiment uses a spring to bias two magnets apart. In some embodiments, each transistor among the plurality of transistors comprises a fin. A determination can be automatically made that an authorized individual, or an unauthorized individual, or, an intruder has been detected.