应运而生在电子器件的大家族里,集成电路是引人注目的一员。大家知道,在一些复杂的电子设备中,要使用大量的元器件。元器件数目及相应焊点数的增多,不仅增加了设备的重量和体积,还降低了设备的可靠性。于是,人们曾设想,将一个电路所需的晶体管和其它元器件,制作 Came into being in the big family of electronic devices, the integrated circuit is a conspicuous member. We all know that in some complex electronic equipment, to use a large number of components. The number of components and the corresponding increase in the number of solder joints, not only increased the weight and volume of the device, but also reduces the reliability of the device. Thus, one had conceived that a transistor would be needed for a circuit and other components were fabricated