A tunnel oxide film 120, a first polysilicon layer 164, a polypoly insulating film 132 and a second polysilicon layer 166 are formed on a semiconductor substrate in a memory cell area. Another object of the present invention is to provide a radio frequency power amplifier that is designed to reduce distortion of output power caused by electromagnetic coupling of bias supply terminals and interconnections of each stage to thereby provide high efficiency. A right dropout is removably connected to the bicycle frame at the right junction, the right dropout including a body defining an opening for receiving the rear wheel. The firing bar also advantageously includes a thinned or tapered proximal portion in the form of a strip or band that negotiates the articulation mechanism flexibility.