A WLAN communication device comprising a WLAN frequency synthesizer for generating a synthesizer signal suitable for modulating a transmission signal andor demodulating a reception signal and corresponding methods and integrated circuit chips are provided. Subsequently, a ferroelectric capacitor is formed on the first insulating film, and then a second insulating film is formed on the ferroelectric capacitor. A discharge guide directs the fillets carried by the turntable such that they are discharged onto the inspection table when their orientation has changed 90 degrees such that they are positioned on the inspection table transverse to the movement of the table and stomach side forward. The delay line control circuit is configured to generate the control signal by counting multiple cycles of a high frequency oscillator signal having a period less than the clock period, over a time interval having a duration greater than the clock period. At least one of the cladding layers is of the same composition through the entire region of the cladding layer, excluding a dopant in the cladding layer, and has a stripe portion different in conductivity type from adjacent portions.