世纪之交,继电子计算机之后,数字消费类、通信、网络和汽车电子等电子产品已成为拖动电子元器件快速发展的新的经济增长点。 上述电子整机向数字化、高频化、多功能化、环保,以及轻、薄、小,变携式方向发展;电子系统向网络化、高速处理、高速传输和宽带方向的发展;导致电子元件向集成化,微型化、片式化、智能化、大容量化、抗电磁干扰、低成本发展成为必然的趋势。因此,无源元 At the turn of the century, following the development of electronic computers, digital consumer electronics, communications, networking and automotive electronics have become the new economic growth points for the rapid development of electronic components. The electronic machine to the digital, high frequency, multi-functional, environmental protection, and light, thin, small, portable portable direction; electronic system to the network, high-speed processing, high-speed transmission and broadband direction; led to electronic components To the integration, miniaturization, chip, intelligent, large-capacity, anti-electromagnetic interference, low-cost development has become an inevitable trend. Therefore, passive elements