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印制电路板几乎是所有电子装置,即小到MP3大到发电厂的控制元件的核心部件。在100多年的发展史中,印制电路板在功能、大小和生产成本等方面经历了很大的变化,尤其是近年来,由于集成电路不断地小型化,印制电路板的封装密度有了大幅度的提高,其中个人计算机的发展就是PCB技术取得重大进步的一个最好的例子。目前台式计算机的计算能力已经超过20世纪六七十年代第一台超级计算机,而价格比当时小型计算器的价格还低。另一个例子是用于全球通讯的移动电话,在短短几年时间内就由昂贵笨重“狗骨”型,发展到小巧玲珑并具有全球范围的通话和数据服务功能重要通讯工具。下面这些内容是关于电路板的发展历程和当前技术现状的综述,并对PCB今后技术发展趋势进行了预测。
Printed circuit board is almost all of the electronic devices, that is as small as MP3 core control components to the power plant. In the history of more than 100 years, printed circuit boards have undergone great changes in terms of function, size and production cost. Especially in recent years, with the continuous miniaturization of integrated circuits, package density of printed circuit boards A substantial increase, of which the development of personal computers is one of the best PCB technology has made significant progress. The computing power of desktop computers has surpassed that of the first supercomputer in the 1960s and 1970s at a much lower price than the small calculators of the time. Another example is the use of mobile phones for global communications, from expensive, clumsy “dog-bone” types in just a few years to the small, world-class messaging and data services essential communications tools. The following is a summary of the development of circuit boards and the current status of the technology, and predict the future development trend of the PCB technology.