一、概述七十至八十年代是电子技术飞速发展的时代。现代电子设备正在向小、轻、薄、高速度(指信息传递速度,下同)、高性能、高功能、高可靠、低成本和人工智能等方向发展。由于电子设备与电路技术、元器件技术和电子组装技术密切相关,因此,要实现上述高指标,除了必须考虑电路和元器件技术外,还应采用先进的高密度和高速度电子 I. Overview The seventies to eighties are the era of rapid development of electronic technology. Modern electronic devices are moving toward small, light, thin, high speed (referring to the speed of information transmission, the same below), high performance, high functionality, high reliability, low cost and artificial intelligence. As the electronic equipment and circuit technology, component technology and electronic assembly technology are closely related, therefore, to achieve the above high index, in addition to the circuit and component technology must be considered, but also the use of advanced high-density and high-speed electronic