The PC8163TB is a silicon monolithic integrated circuit designed as frequency up-converter for cellular telephone transmitter stage. The PC8163TB has improved intermodulation performance and smaller package. The PC8163TB is manufactured using NEC's 20 GHz fT NESATTMlll silicon bipolar process. This process uses silicon nitride passivation film and gold electrodes. These materials can protect chip surface from external pollution and prevent corrosion/migration. Thus, this IC has excellent performance, uniformity and reliability.